SCIENTIFIC ABSTRACT TOLSTOY, N.A. - TOLSTOY, N.A.

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• Collection: Scientific Abstracts
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• Document Release Date: July 16, 2001
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• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

USSR/Optics /~hysiical Optics K-5
Abs Jour Referat Zhur - Fizika, No 5, 1957, 12935
Author Tolstoy,_K~A.., Tkachuk, N.H., Tsenter, M.Ya-, Mansurova,
Inst Leningrad Technological Institute, State Optical Institute
USSR
Title Investigation of the Scintillation of the Flash Flareup
Curve for the Glow of the ZnS-Mn Phosphors.
Orig Pub Optika i spektroskopiya, .1956, 1, No 5, 719-728
Abstract A new procedure is proposed for the investigation of the
flash flareup and attenuation of lumine&cence, based on
the application of a one-shot light modulator (magneto-
electric gate, controlled by an electronic circuit).
With the aid of this wdulator, an investigation was ma-
de of the flash flareup of a series of ZnS-Ma phosphors.
Card 1/2

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ARKnMELISKATA, V - TOLSTOT N - FMDFILOV, P.
"Q~ * I
Fifth Cozterewe on-Luminescence (cr7stal phosphors). Opt.
I spektr. I no.6:813-820 0 '56. (MLRA 9:12)
(Tartu-Luminescance--C.ongresses)

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IOLsrvY, N. A.
371
C"'5015. ON TIM POMUM OF A TWO-STEP MEC535
HAN.
- N.A.Tolatol.
ISM OF EMTATION IN ffULPHME PHOSPHORS
Zh. Asper. tear. Fls,, Val. 10, X6.1, 17r."058). To
Russian.
The experimental, daft on kinetics of lumineseence of
IbN Menchedphosphors-qhow-that opposlt~ thewl4ely
syr opinion* tha b1molecular a not give a cTriiR
theory Joe
e)qA%=#' a. An Intarpretation of experiments Is gl,!en, based
on the mechzxd$M,ot a tW6.4tep excitation of luminescence.
it Is 6h0" that the photo-cooductivity-of lpdS hl&My aeUvated
with copper Is aWlted by a ~llfiw steWl process. At the ame
time the ktvaLnescence of this substance shows regularities,
typical of the cue of strong quenching. A.

USER/ Physical Chemistry Crystals B-5
Abs Jour : Referat Zhur Khiniya, No 4, 1957, 11000
Author : Tolstoy N.A.., Kolomiyets B.T., Golikova 0.1., Tsentner M.Ya.
Title : -Photoconductivity and Luminescence of Polycrystalline CdS(Cu)
Orig Pub : Zh. eksperim. i to-or. fiziki, 1956, 30, No 3, 575-576
Abstract : In the case of polycrystalline samples of CdS-Cu (10-6 - 5.10-4 9/9)were
investigated: dependence of stationary photoconductivities and luminosi-
ty of glow on intensity of exciting light B (Rgi-lines 365, 546 dnd 578 m.
~'~ ), and also the ratios-of surface areas below the curves of photocon-
ductivity rise and dr9p, and below the curves of increase and attenuation
of the glow. The conclusion is reached that risults are conflicting with
any recombination a chede of the glow and are in accord with the theory
of a 2-step mechanism of excitation (Loahkavev V.Ye., Fedorus G.A., Izv.
AN SM, Ser. fiz., 1952, 16 81; Eahmm, 1956, 64335)-
Card 1A

L s T 0/ I/V 1 16/ 0
1~441fihysical Chemistry - Crystals. B-5
Abs Jour: Referat. Zhurnal FbImlya., No 2, 1958., 3673.
Author j._A. TQ;Lik~Qy,
InSt Academy of Sciences of USSR.
Title Scintillating Luminescence Rise in Zinc-Sulfide PhOSPhOI-E
and Two-Step Excitation Mechanism.
Orig Pub: DOkl- AN SSSR, 1956, 111, No 3, 582-584
Abstract: It was revealed by nev methods (WhIbim 1957, 18331) that the
scintillating rise (SC) of the long wave luminescence ba-.,,A
(Tolstoy N.A., Feofilov P.P., Dokl. AN SM, 1949, 68, 285)
was observed to take place- in a great many phosphors with ZES
tase (excitatiOn of X = 365- m.,-i ), for* exuple in ZnS-Ni; Zw-
Ni,'Ag; 'ZnS-Cd,- -ZnS-I?e; *ZnS-Eu; ZnS-P; W-~Cu iLud in activatorl,~;s.7
ZnS. The characteristics 6f'SC are discimed and a lumiaeeneno-!
mechanism of phosphors possessing SC is proposed. 71he initial
Card 1/2 -24-

USSF,(Physical Chemistry - Crystals. B-.5
Abs Jour: Referat. Zhurnal JWmiya, No 2, 1958, 3673.
action of the exciting light transfers electrons from the con-
ductivity zone (or from the non-excited activator levels) to
local levels (LL). The electron mmber on a LL is limited by
the fact that theyare rejected from the LL to the conductivity
zone by the secondary action of the exciting light and leave
spontaneously to the scintillation levels. Radiationless transitions
from LL and scintillation levels into the valence zone are also
possible. The SC phenomenon and the phosphor characteristics are
explained using this model. It is shown that SC is an autostimu-
lation with exciting light.
Card 2/2 _25-

IN
4-0
'ta

(TOLSTOY, N.A.;. SPARTAKOV, A.A.;. KHILIKO, G.I.
Blectrooptical properties of lyapbnbic colloids. Part 1.,
Statement of the problem, pxdnelpal methods and results. 7
Koll. zhur. 22 no. 6:705-716 R-D 6o. .. (MIRA 13:12)
1. Iveningradskiy takhnologicheskiy institut imeni Lensovetat
Safedra fiziki.
(Colloids--Optical properties)

FABRIKAIM-i VaIevtin'AIekBnWrovUhp prof*# doktor fiziko-matem. nauk; CM 9
Favtrl Alskoeyevich't prof.9 daktor fiziko-matem. naukt lmrea~fXobe2evekoy
'pre:4i; GALAHN' Mikhail Dmitriyevichg prof. doktor fi4iko-matem. nauk;
KU2MTSOVI, Ivan Vasi1'yeyich"QISTQI,-KikiUa Alekseyeviobg prof,p
dpktor ftidku-matem. nmkj VINTER9 Aleksandr Vaellryavlab-pkkademik
[de6asedl; BABDI*,, Ivan Pavlovieb, akademik [deceaqed]l BAZMWOV, A.Lt
FA-3WBOVKp I.B. ; red. j RAKITP(; I.T. p -tekbn. red.
Sergei Ivanovioh VWilov; abornik4, Moskva,, Izd-vo "ZnqiepA
1961o 43-Po (V sb#u=a obWwbastvo po rasprostraiminift po-
liticheakikh i naucbnykh znaniie Ser.99 Fizika i khtm-iiag
DO , 10) (MLU UM
(Vavilovp Sergei Ivanovich, 1891-1951)

51-6-11/26
AUTHORS: Tolstoy, N. A., Tkaohukp A. M. and Tkachuk, N. N.
TITLE., Flash Emission of Luminescence. (Vapyshechnoye
razgoraniye lyuminestsentsii.) 1. ZnS-Ni Bhosphors.
Part 1. (1. Foefory ZnS-Ni. Chast' I.)
PERIODICAL: Optika i Spektroskopiya, 1957, Vol.II, Nr.6,
pp. 759-769. (USSR)
ABSTRAGT: The red band of the ZnS-Ni phosphor exhibits flash
emission. The phosphor was excited with 365 m,"
line of mercury. The flash was observed using a
light filter. The intensity of the flash increased
with the duration of the dark interval between two
consecutive excitations, to. The maximum intensity
was reached at a value of to which increases with
decrease of temperature (see Fig.1). Preliminary
illumination of the excited phosphor with infrared
and green-orange light affected the flash emission.
The infrared illumination shortened the dark interval
Card 1/3 before the flash but did not affect the maximum flash

Flash Emission of Luminescence. 1. ZnS-N1 PhosphorB. Part I.
51-6-11/26
intensity. Illumination with 578 or 546 m,*A. lines of
mercury decreased the ability of the phosphor to emit
in a flash. If this green-orange illumination was of
sufficient power and duration the flash emission
disappeared altogether. The ZnS-Ni phosphor which
can emit in a flash was found to possess a wide band
of complementary absorption (Fig.5). It was also
found that kinetics of the blue-band emission (Zn)
is closely related to kinetics of the red band (Ni)..
The authors suggest that flash emission is due to
transitions of electrons or holes from one localised
state ~first localisation") to another such state
("second localisation"). Students of the Leningrad
University A. Yeremeyeva. and 0. Popova, took part
in this work. There are 6 figures and 10 references,
Card 2/3 9 of which are Slavic.

51-6-11/26
Flash Emission of Luminescence. 1. ZnS-Ni Phosphors. Part I.
ASSOCIATION: State Optical Institute imeni S.I. Vavilov; Leningrad
Technological Institute imeni Lensovet, Chair of Physics.
(Gosudarstvennyy opticheskiy institut im. S.I. Vavilova;
Leningradskiy tekhnologicheskiy institut im. Lens.oveta,
Rafedra fiziki).
SUBMITTED: November 28, 1956. .71
AVAILABLE: Library of Congress.
Card 3/3

AUTHOR:
TITLE:
Tolstoy, N. A.
On Relationship of the Blue and Red Emission Bands in the
ZnS-Co Phosphor. (0 vzaimnoy avyazi goluboy i krasnoy
polos svecheniya v fosfore ZnS-00.)
PERIODICAL: Optika i Spektroskopiya, 1957, Vol.III, Nr.1, pp.73-75.
(USSR)
ABSTRACT; This paper reports preliminary results of investigation
of the relation of the steady-state emissions of the
blue (Zn) and red (Co) bands of the ZnS-00 phosphor
containing five parts per million by weight of Co. The
author suggests that the transfer of electrons and holes
responsible for the flash emission in the red band of
this phosphor also occurs during steady-state excitation.
This transfer of electrons or holes consists in transitio
from short-wavelength centres (the so-called first local-
ization levels) to other, energetically lower, localized
states (second localization) which are located at the
Card 1/3 long-wavelength centres of emission. The speed of thi,-

51-i-:L6/18
On Relationship of the Blue and Red Emission Bands in the ZnS__Go
Phosphor.
Card 2/3
transfer increases with temperature. Such transfer
would increase the steady-state brightness of the long-
wavelength emission. This increase should be simply
related to the number of electrons or holes transferred
from the levels of first localization to the second set
of levels in unit time. In its turn the number of such
electrons or holes would be proportional to:
(a) the steady-state number of electrons or holes at the
levels of first localization at a given exciting light
intensity and a given temperature, and (b) the increasing
with temperature probability of transition from the first
localization to the second. Fig.1 shows dependence of the
brightness of the red emission on B (exciting light
intensity) at various temperatures t. The author inter-
prets the observed dependence I(E) as follows. Below
000 the function I(E) is linear because the red centres
are excited directly by the incident light. At room
temperature, and above, the I(E) curves consist of two
components superimposed on each other. One is due to
direct excitation of the red centres and has linear

.51-1-10/18
On Relationship of the Blue and Red Emission Bands in the ZnS-Go
'Phosphor.
dependence of I(E). The other is due to transitions
from the first to the second localization levels. These
first localization levels are "saturated" at all but the
lowest values of E and therefore this component exhibits
"saturation!'. At higher temperatures the transfer from
the first to the second localization levels becomes more
intenseo the number of electrons or holes at the first
localization decreases and eventually this number becomes
proportional to E. Then the I(E) curves beeome,linear
again. The first localizational levels are attributed to
the blue emission band of ZnS-Co and the second onds to the
red emission band. The temperatlure dependences of emission
for these two bands are shown in Fig.2. There are 2
figures and 5 references, all of which are Slavic.
SUBMITTED: February 26, 1957.
AVAILABLE:
Card 3/3

0 Y
51-5-7/11
AUTHORS: Tolstoy, N'.A'. and Sokolovp V.A.
TITLE: Some Luminescence and Photoelectric Properties of Poly-
crystalline Cadmium Selenide (Nekotorye lyuminestsentnye
i fotoelektricheskiye svoystva polikristallicheskogo
selenida kadmiya)
ARICDICAL: 'Optika i Spektroskopiya, 1957, Vol*.III, Nr 5,
pp.495-503 (USSR)
ABSTRACT: Luminescence spectra of cadmium selenide have been photo-
graphed, using the apparatus of Galkin (Ref.14) including
the infra-red region. Fig'.la shows the ;uminescence spec-
tra of cadmium selenide at 200C and -183 C. As can be
seen, the luminescence band at room temperature (Curve 1)
has a simple bell-shaped form with a half-width of 290 mjL
and a maximu i at 1.14j.4.. At liquid oxygen temperatures a
more intense "cold" maximum appears at O'.9jA, while the
position of the "hot" maximum remains the same,. The phen-
omenon is characteristic of the majority of p~hosphors of
the sulphide type with two luminescence bands'. Fig_.lb shows
luminescence spectra of CdSe-Cu at -1830C. As can be seen,
the introduction of copper (CdSe-Cu 1), 1'eads to the appear-
ance of a bright band with a maximum at O.91,L4_, accompanied
Card 1/5

51-5-7/11
Some Luminescence and Photoelectric Properties of Poly-
crystalline Cadmium Selenide.
by a very small maximum at lr,15 JL which obviously coincides
with the "hot" maximum in a pure CdSe. In the spectrum of
CdBe-Cu II (the continuous line Fig.lb) there is only one
short wave maximum at 0.92 JL. The time of relaxation of
the luminesopce of pure CdSe is estimated to be of the
order of 10- see at room temperature. The relaxation is
not exponential and the form of the curve is a function of
intensity of the excited radiation and the temperature.
Fig*2 shows the dependence of the stationary photoconduct-
ivity on the wavelength at room temperature. The photo-
conductivity of CdSe has a selective maximum at X = 0.71
to 0'.72 JL (Fig.2 q 1). For wavelengths less than 01-5A the
photocofiductivity is practically zero. The long wavelength
limit is at 1.2A This is in agreement with the work of
Eckart and Schmidt (Ref 15). The spectra of CdSe-Ou are
different from the spectra of the pure CdSe. The z6aximum
of the curve has shifted towards the long wavelengths and
does not fall off so rapidly on the long wavelength side.
Pure CdSe has a conductivity proportional to Eq where E
is the intensity of the exciting radiation... . Fig.3 shows
Card 2/5 the dependence of q on temperature. The curve has a maxi-

5 1 -5 -7/11
Some Luminescence and Photoelectric Properties of Poly-
crystalline Cadmium Selenide.
mum at about -150C where q = 2 Experiments on CdSe at
t = -150C and q = 2 have shown that
Z~aw ~ E7- I
Ln/.Ls>> i and
.A6,rj- t~_ at t 4 0
where L n is the area under the curve of rising conducti-
vity and L s is the area under the curve of falli% conduct-
ivity. Experiments on relaxation curves at room and higher
temperatures have established the presence of "flares" in
the photoconductivity. This means that the value of photo-
conductivity during the first few moments after the exclus-
ion of the exciting radiation is higher than the stationary
value (of Fig.5). The ratio of the maximum value of photo-
conductivity to the stationary value is a function of the
Card 3/5

51-5-7/11
Some Luminescence and Photoelectric Properties of Poly-
crystalline Cadmium Selenide.
lldpxk" period between successive excitations. The ratio
increases with the duration of this "dark" period until it
reaches a certain value and then remains constant. This
coxistant value of the ratio increases with temperature and
re4ches a maximum at 1200C, after which it decreases again.
The value of the above ratio also depends on the intensity
of the exciting radiation. A negative "flare" has also
been observed. This means that the photoconductivity has
a lower value during an interval of time immediately after
irradiation than during the "dark" period. This negative
"flare" is only observed at sufficiently high temperatures.
During experiments on the photoconductivity of CdSe it was
found that the addition of a UV excitation to a constant
long wavelength excitation leads to a rapid decrease in the
photoconductivity. The majority of the above phenomena
occur also in cadmium sulphide.
There are 8 figures and 18 references, 12 of which are Slavic.
ASSOCIATION: State Optical Institute, Leningrad Technological Instit-
ute, Chair of Physics (Gosudarstvennyy opticheskiy institut
Card 4/5 Leningradskiy tekhnologicheskiy institut Kafedra fiziki)

61 /V k1
LMSBERG, G.S., [deceRsed], ak-ademik; IMBWEV, A.A., akademik; RONKI, VASKO
. , ARMOV, A.Yp.: TOLSTOY N.A.; VINIMR, A.V., akademik;
[Ronchi, Vnscol -
BARDIN , I.P., akAdemik.
Recollections about Sergai Ivano-vich Vivilov. Trudy Inst.ist.
eat.i tekh. 17:llj?-153 150. (MLRA 10:7)
1. Direktor Hatsionallnogo aptInheekogo instituta, Archetri
(Florenteiya) (for Roaki),
(Vavilov, Sergai Ivanovich, 1891-1951)

3UBJEM USSR/Lumineecence 48-4-4/48
AUTHORS% Tolstoy N.A. and Shatilov A.V.
TITLEt On the Possibility of Two-Step Excitation of Photosemiconduc-
tor Phenomena (0 vozmozhnosti dvukhatupenchatogo vozbuzhdeniya
fotopoluprovodnikovykh yavleniy)
PERIODICALt Izvestiya Akademii Nauk SSSR, Seriya Fizicheakaya, 1957, Vol 21
#4, P 494 (USSR)
ABSTRAM A number of stationary and relaxation regularities in lumines-
cence and photoconductivity cannot be accounted for by existing
theories. These regularities are characteristical for phos-
phors and photoresistancea which are quenched by temperature.
For explanation of these regularities a two-step mechanism
of electron excitation in the pseudomolecular character of
recombination can be proposed. Equations of the two-step
theory qualitatively agree with experience when quenching is
absent or insignificant.
In particular, photoconductivity is found to be proportional
to the square root of excitation intensity within a wide range
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JW 48-4-4/48
TITLE3 On the Possibility of Two-Stop Excitation of Photosemiconduc-
tor Phenomena (0 vozmozhnosti dvukhatupenchatogo vozbuzhdenlya
fotopoluprovodnikovykh yavleniy)
of variations of the latter. This conclusion agrees with the
well---aown law for the conventional photoconductivity.
Three Russian references are cited.
INSTITUT-Ai Not indicated.
PRESENTED BY:
SUBMITTEDs No date indicated
AVAILABLEt At the Library of Congress.
Card 2/2

SUBJECTs USSR/Luminescence 48-4-5/48
AUTHORS: Tolstoy N.A., Tkachuk A.M.0 Tkachuk N.N. and Nansurova Z.S.
TITLEv Flash Brightness Rise of Zinc-Sulfide Phosphors (Vapyahechnoye
rasgoraniye tzink-oullfidnykh fonforov)
PERIODICALt Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya, 1957,
Vol 219 #49 pp 495-498 (USSR)
ABSTRACTs A rise in the flash brightness of the luminescence long-wave
band is observed in ZnS-Nn; ZnS,4ij ZnS-Co and also in the
"pure" ZnS (apparently due to iron admixtures). The flash may
be 6.5 times as bright as stationary phosphorescence of ZnS-Ni.
The intensity of flash depends on the duration of interruption
of t0 in excitation illumination. There is an optimum time of
to max ("ripening time") which corresponds to maximum flash.
The value of t0 Max depends on the ihosphor composition and
temperature. Temperature-dependone* of to max is expressed
by the following oquationt 7'
-f- ~^ I e ~ VIA
Card 1/2 t. Moir

48-4-5/48
-9ITLEt Flash Brightness Rise of Zinc-Sulfide Phosphors (Vapyahechnoye
razgoraniye tzink-sullfidnykh foeforov)
The process of flash "ripening" is interpreted as a thermal
transfer process of electrons from the local "supply levels"
to the local "flash levels". After a sufficient time, elec-
trons leave thermally also flash levels. The law cited above
can be derived on the basis of these conceptions.
The article is followed
in the report.
No references are given.
INSTITUTION: Not indicated
PRESENTED BYt
SUBMITTEDi No date indicated
by a discussion of the topics touched
AVAILABLEs At the Librory of Congress.
Card 2/2

T
SUBJECT: USSR/Luminescence 48-4-14/48
AUTHORSt Tolstoy N.A., Tkachuk N.N. and Preobrazhenskiy R.K.
TITLEt Kinetics of Infra-Red Luminescence of couprous Oxide (Kinetika
infrakrasnogo evecheniya zakisi medi)
PERIODICALt Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya, 1957,Vol 21,
#4, pp 521-522 (USSR)
ABSTRAM Development of the ultrataumeter made it possible to investi-
gate luminescence kinetics of oouprous oxide.
The study of dependence of luminescence relaxation time T' on
temperature and content of ultra-stoichiometric oxygen has
shown the following: T anomalously incroases from 5xlO_ 6 to
5xlO_ 6 see with the temperature rise from -183 0C. At the room
temperature the T -value ceases to rise and falls at the
further heating (temperature quenching).
The increase in oxygen content leads to T' -decrease at all
temperatures except the lowest.
Card 1/2

48-4-14/48
TITLEs Kinetics of Infra-Red Luminescence of oouprous Oxide Kinetika
infrakrAsnogo svecheniya zakisi medi)
Citing the 3 possible ways of accounting for the T-rise with
temperature, the author favors the third one according to
which the absorption mechanism bears an excition character.
Exoiton decay on a charged acceptor leads to photoconductivity,
and on an uncharged acceptor leads to luminescence. Assuming
that the cross section of exciton. capture is larger for the
uncharged acceptor, the total cross section of all exciton
capture centers decreases with temperature rise and the*r-
value of luminescence increases.
The report is followed by a discussion.
No references are cited.
INSTITUTION: Not indicated
PRESENTED BY:
SUBMITTED: No date indicated
AVAILABLE: At the Library of Congress.
Card 2/2

-To Is To,-\,, V-1 - Pr.
SUBJECT% USSR /Luminescence 48-4-43/48
1UTH0RSt Tolatoy N.A., Tkachuk A.M. and Tkachuk N.N.
TITLEs Ultrataumeter (ulltrataumetr)
FERIODICALs Izvestiya. Akademii Nauk SSSR, Seriya Fizicheskaya, 1957,
Vol 21, #4, pp 595-611 (USSR)
ABSTRAM In order to measur relaxation pro *sees whose duration is
within the limits ;rom 10--7 to 10-~soc, a special apparatus,
"ultrataumeterh, was designed and constructed. Investigations
of the kinetics of some luminophores wore carried out with
the aid of this apparatus.
The ultrataumeter uses photoelectronic multipliers. One of
them is of the FEU-19 typo (:ntimony-conium pnotocathode),
and the other one of the "AE 11 firm (cesium oxide photocathode).
The multipliers are supplied from a rectifier with electronic
stabilization.
As the Soviet industry does not manufacture oscillographs suit-
able for application in an ultrataumoter, a special oscillo-
Card 1/3 graph was designed and constructed by the authors. This

TITLEs Ultrataumetor (Ulltrataumetr) 48-4-43/48
oacillograph is valuable also for the application of the method
of electric-difforentiation. Its sensitivity to inertia is
(1 to 2)x10 ease. Its horizontal frequency characteristic
ranges from 5 c/sec to 10 megao/sec at the value of gain factor
k - 500 and to 3 megac/sec at k - 1,000.
A mechanical modulator of light can modulate the light of any
spectral composition, within the limits of quartz lenses.
The practical resolution ability of the uVrataumeter with the
mechanical light modulator amounts to 10- sec.
Two more ultrataumeters were constructed3
1. The ultrataumeter with an electro-optical modulator of
light. It was designed for modulation of light within the
visual portion of the spectrum. It was applied for studying
kinetics of the infra-red luminescence of cuprous oxide.
2. The ultrataumeter for studying kinetics of cathodolu-
minesconce. Relaxation times of cathodolumineacence up to lo-7
see can be measured with the aid of this device.
The article contains 13 circuiza and 4 figures.
The bibliography liats 25 re'Lerences, all of which are
Card 2/3 Slavic (Russian).

- - - : ~ , 7. . - - . , . . . . . . - . , . ~ I , . ~z , , , -1 i . ; I , ~ . I I '. 1. . I
--- . ~, I -

SOV/51-5-4-9/21
AUTHORS. Arkhangel'okaya, VA. and Tole
110*~
TITLE: Kinetics of Luminescence of Certain Tungstatok; W of Zinc Oxide
(Kinetika avochaniya vollframatov i okist tsinka)
PERIODICAL: Optika J Spektroskopiya, 1968, Vol 5, Nr 4, pp 415-422 (USSR)
LBSTRACTs The authors studied kinetics of photoluminesconco and cathodolumineacenco
6f GaWO4, CdWO4, Mg!104, Z00,1, CaM004 and ZnO- To study relaxation
of cathod,*A,sju ines a once the authors used the "taumeter methc4"
(Refs 8, 9) with the following iaodifications:, (A) An electron,
gun produced electrons which were used to bombard phosphor
samples deposited on chromium plated copper. This copper plate vlas
used to vary the sample temperature from 200G to 3000c. (B) A SPOCIA.5.1
wide-baad (2 to-107c/s) cathode-ray oscillograph vms used.
(G) Photomultipliers used were of Soviet (FEU-19, Sb-Cs type) and
Gonnan (A.B.G., Go oxide type) origin. To measure photolumineseenes
relaxation the authors used a "taumoter" (Rof 8) and the wide-band
cathode-ray oscillograph referred to above. The cathodoluminesconce
Card 1/4 relaxation of Ca',YO&, CdW04, MOOO Z004 and CaL1004 phosphors had

SOV/51-5-4-9/21
Kinetics of Luminescence of Certain Tungstates and of Zinc Oxide
the following co=on characteristics , (1) the rise and decay curve-?
of luminescence were symmetrical; (2) the form of relaxation ci;,rvoe
does not depend on the current density in the electron beam;
(3) at room temperature the relaxation curves are not of purely
exponential nature. Fir, I shows the decay curves for M&WO4 (Fig 1~-"
and Ca7WOj (Fig lb). Each of these curves may be represented by t1to
exponential curves whose time constants % do not 4iffer mach from ~,ne
another. The values of the relaxation time * given In this paper aro
the averages of the two values of It obtained by fitting tvic exponentld'~i
to each decay curve. Dependence of T, on temperature is giver., for ti-to
five phosphors listed above, in Fig 2. Fig 3 gives the dependences
of the relative brightness 1/120 and the relaxation time tA-,20 on
temperature t. 120 and V20 denote the brightness and the relaxatior,
time at 200G,' and Fig 3 deals with GaWO . and MgWO., only. Relaxatlor,
photolurainescence vas also �tudied. Photoluminasc6nce -&as excited. u-4'---
a marcury lamp SVDSh-25O (365, 334 aad 313 mp~. For all the fire
phosphors listed above the following characteristics of photo lul,-' nes c ear- 6
relaxation were noted; (1) the rise and decay curves ef lumlnAscen--.~!
Ca rd 2/4 are symmetrical and aTe of purely exponential nature in a

SOV/51-5-4-9/21
Kinetics of Luminescence of Certain Tangstates and of Zinc Oxide
range from -1830C to +10OOGj (2) the form of the decay curves does
not depend on the intensity of excitation. Fig 4 gives the -%(t)
curves for photoluminescence Of MSW04, ZdMO4, CdWO4 and GaMoO4,.
In addition to the fou'r -bAngstates and one moly~date listed above
the author studied two types of ZnO, which differed in their methods
of preparation and spectral and ealaxation properties. ZnO of type I
was prepared from ZnS.by oxidation at 60000. Its photoluminescence
spectrum, excited b~ 366 m1k is shown In Fig 5. curve 2. It -war, found
that the value ofle'in photoluminescence of ZnO I was constant within
the range of temperatures from -1830C to +2000 and was equal to
1.25 x-10-6see. Curve 1 in Fig 5 represents electron-excited
cathodoluminescence of ZnO 1. The temperature dependence of T/11-20
and 1/120 for electron-excited ZnO I-is shown in Fig 6, The
cathodoluminescence'decay of ZnO I consists of two processes.
(1) a fast exponential decay with T = 1.25 x 10-650C., and
(2) a slow non-exponential "tail" with I - 10-4see. The value of
for the exponantial'part of the cathodoluminescence decay of ZnO I does
not depend on the electron beam density or electron energy. The
Card 3/4 exponential T remains constant on heating up to 600C, and then it falls

SOV/51-5-4-9/21
Kinetics of Luminescence of Certain Tungstates and of Zinc Oxide
reaching 4.5 x 10-7goe at 2200C. Above 1450c the non-exponential
"tail" disappears completely. The second type of zinc oxide tZnO II)
is-obtained by reduction of ZnO with lampblack above 10000C. 7he
photoluminescence spectrum of ZnO II is displaced towards longer
wavelengths compared -with the corresponding spectrum of ZnO I. Tho
cathodoluminor.cence spectrum of UO 11 possesses also an emission banl
in the near ultraviolet (Refs 7, 12). X-ray diffraction showed that the
lattices of ZnO I and'ZnO II are identical. The differences between
ZnO I and ZnO II liqi.mly in the chemistry or topography of mioro-defe,~t5
There are 6 figures, 1 table and 15 references, 10 of which are Soriet,
2 English, I Dutch, 1 American and 1 translation.
ASSOCIATION; Gosudaretvannyy opticheskly institut im. S.I. Vavilova k8tate
Optical Institute imeni S.I. Vavilcv).
SUMUMEDs Janaary 6, 19,57
Card 4/4 1. Tungsten compounds--Luminescence 2. Zi-pe oxide--Luminescence
3. Electron bombardment--Applications 4. Phosphors--Properties

AU THORS : Shatilov, AN. SOV/51-5-5-14/23
TITLEs Formal Analysis of the Theory of Two-bUp Excitation of Phosphorescence
and Photooonductivity. (Fonitallayy analiz toorii dvukhatupenchatogo
vozbazhdeniya fosforestsentsii I fotoprovodimosti). II. Relaxation
I
elations (II. Relaksatsionnyye zavisimosti)
R
FMMIODICAI Optika I Spaktroskopiya, 1958, Vol 5, Nr 5, pp 590-600 (UsSR)
ABSMIGT; In Part I (Ref 1) the authors considered steady-state relations which
followad fromthe two stop excitation theory. The present paper
discusses relaxation relations which correspond to rise or decay of
phosphorescence and photoconductivity under excitation by square pulses
of light. It is assumed that decay processes begin after reaching a
state of equilibrium under the pulse excitation, and the rise processes
are taken to occur after cuiplata relaxation of the excited shates. Rise
carves are considered first and the stracture of one such curve is
shown in Fig 1. Decay curves are shown in Fig 2 curve 3 (which is the
own of exponential curvas I and 2) and Fig 4 'which shows a non-monotonic
decay of a light-sum, Fig 3 Illustrates relaxation procesoes as functions
0
of the excitation intensity. The paper Is eniArely theoretical. There are
Card 1/1 4 figures and 6 references, 7 of which are Soviet and I Folish.
1. Phosphoroscence-Theory 2. Photoconductivity--Theory 3. Photocon-
ductivity--Excitation 4. Phosphbrescent materials--Excitation
5. Phosphorescent decay

AUTHOR: Tolstoy, N.A. SOV/51-6-1-29/30
TITLS i Opties at the International Congress on Solid-State Physics
(Brussels, 195P,). (Optiks. na mezhdunarodnom. kongrese po Mike
tvardogo tela (BrWasell, 195P) )
PERIODICALt. Optika i Spektroskopiya, 1959, Vol 6, Nr 1, pp 124-126 (USSR)
ABSTFACTs The International Congress on Solid-State Physics and its applications
to electronics and tolecomminication was hold in Brussels between -,,
2nd and 7th June, 1958. About 1000 participants and guests were present,
including the following Soviet scientistas V.V. Antonor-Romanovskiy,
B.M. Vul, D.W. Nazledov, A.N. Torenin and N.A. Tolstoy. 265 papers were
presented at the Congress and the present report deals only with same
of the papers on optics. The latter Included a paper by
V.V. Antonov-RomannvR1ciy -who reported experiments on electrolumines cone&
of ZnS powdern n-tid sine~La crystals.
Card 1/1

24(4), 24(b) 5 OV/51-6-5-1 6/,3,-!
AUTHORS: Tolstoy, N.A. and Tka.-:.-h,.zk, A.M.
TITLE: Studies of the Spectral Distribution of the LuTinencence Decay Time
of Ruby,by the Pulse Twjjneter Method kissladovanlye spektrallncgo
rasoredelonlya vremeni zatukhaniya svechaniya rubina motodom
impul'snogo taumetra)
PERIODICAL: Optika i Spektroskopiyu, 1959, Vol tj, Wr 5, pp 65c,1-664 (USSR)
ABSTRACT, Luminescence of raby W2`,k-Orl originally thought to be rather simple
(Refs 1, 2), was recently shown to '!~ekiavein a complex fashion
(Refs 3-5). Parther experimental viork is noted on this substance.
'lie oresent oavoer reports stadies of the emission-wavelength
dancendene-e of the decay constant 't ("the relaxation spectrum") of nity
using tne pulse t9 ieter method (Ref 6). Fig 1 shons a taumeter with a
pulse lamp 13-50 11 in Fig 1). This instrument is capable of meavurin:!-
decay constants b-.4-iteen 10-r. and 2 x 10-5 see --Ath an error of
The ex.-iting light (340-C40 mp) from the lams,!. was focused by a quartz
conden3er K, on to a gample 0. Some of this -L,.ght wis s, uttered by the
condenser surfaces and reached a photomultiplinr 1-,-,U-1 iF L) -The
signal froin this multiplier -was passed ttiroughan R---, An.ait (the taumeter
proper), was
Card 1/3 mplified and applied to them X-plates of a c.r.o. W-7

Studies of the So y Time zf Fubv,
,ectral Distritration of the 1-*,minsscen~--a Da~a
by tkie Pulse raumetar Method
(K.0. in Fig 1) . Luminezcert light was focused by a -.7:~,~,Ond q tz
M 'par
condenser Kq on to. the entry slit of a monochrotiator fittei with a
diffraction r8L ting, k6OO lin)s 'Imm , linear iisrer~,.'Lon 6.5 A/M111.
cence v7ftich emeral Virouch the exit slit of the ;-lionoctirora.,.tor vats
1, F ~) wh cs a
focuced by a lear, 1, on to a secor.1 photomultiplier FEW-2 ( .
signal vms amplifje~ and applied to tite Y-plates of the c.., o.
Measurement of r took loss zrian 1 min ifor details see Toistoy, Ref 6).
Six samples of r.~by -wore st~zdled in which the amount of chromium
varied from 0.05 to 2.,~-D%- Two serl,~:3 of meae-aremonts ners made. In
the first series the 1-imiaescence spectrum of raby -nas recorded by
means of a pulse larap and an osellIngraph. and then the value of le was
found for each line or baad of sufficient intensity. These measurements
tore carried out at -119-1 and +21DOC. The results obtained (I variA from
0.3 to .5.(5 sac) are given in a table on p 661 and in Fig 2. The latter
figure shoms the 1-aminescance and "relaxation" spe~:t:a at -193 and +2f,,O!,'
for three caraples mith (1.05, C.25 and of f!1hrmium. In the second
spiries of exaarVnants the tw.:)arat-ire depew-lennea -,f It wo-ra moacured
in the region from 80 to 5000K for the 3trongost liaer. or bands.
Ca rd 2/3 Simultaneously, the tem-peratura dependowiez, of t" fwaission brightness

I - -16/ 3 4
Studios of the Snectral Distribution of the L-ar-Uneo.,i-eLce Deca~ Time ~IE6 Ruby,
by the Pulse inumeter Method
of these lines or '*awls viere cbtainei. it v.,a-- founa that I) r-aby can
have 7 to 3 differont do,.-ay constants at varioras emission -vmvelangths
from 690 to 800 jrvu and (2) ::-)nceatmtinn of chronnium affects strv.-,,,-ly
C4
not only tne absolutr7 value of or (vfhic'l in2reasas witi-, in,:reas j of the
amount of C-) bixt alpo the temperatare depandencs of T in tho region
BC-5p'OOK. The exporlmonts dose.-libed hore UbActrate Vie possibilitivs
of tho pulso ta-..Mgtp,.- and show that rAby 'n-as an. i-ntarosting it..t unknoi-al,
as yet, mazl-anism of enerp-Y transfer betwein emission centres.
T.71. Kroytser took part in measurements . There ara 3 f lr.,iras, J. table
and 9 referencGs , L; of which are Svviet, 2 Bnglis.a and I German.
SUBMTTED: May 26, -19-59
Card 3/5

24(4), 24(6)
AUTHOR: Tolstoy, N.A. SOV/51-6-5-17/34
TITLE s Formal Analysis of the Theory of Two-Stop Excitation of Phosphorescence
and Photoconductivity. (Formaltnyy analiz teorii dvukhstupenchatogo
vozbuzhdaniya fosforestsentsii i fotoprovodimosti). III. Comparison
of the Theory 'with Experiment (ZnS-Cu Emission). ((III. Sravneniye
toorii a opytom (svecheniye ZuS-Cu) )).
PERIODICALs Optika i SpektroskDpiya, 1959, Vol 6, Nr 5, pp 665-671 (USSR)
ABSTRACT: The author and Shatilov discussed in preceding papers the possibility
of two-step excitation of sulphide phosphors kRef 1) and gave a formal
analysis of the steady-state kPart I, Ref 2) and relaxation, (Part II,
Ref 3) processes in the two-step theory. The present paper describes
a comparison of the two-step theory with the experimentally determined
steady-state and relaxation properties of ZnS-r,'u. 1tvas fouind that the
values of the parameters which lead to agreement batwoon the theory ana
experiment were the same for the steady-state and relaxation properties.
Ca rd 1/2 The steady-state emission and the initial stages of phosphorescence

SO'1/51-6-5-17/.34
Foriml Analysis of the Theory of Two-Stop Excitation of Phosphorescence and
Photoconductivity
decay of ZnS-Ou phosphors
processes, while the later
"bimolecular" mechanism.
9 of which are Soviet and
are essentially "pseudomonomolocular"
stages of -the afterglow suggest a
'There are 2 figures and 10 references,
1 Fren,.h.
SUBOTTED: May 9, 1958
card 211/2

TOLSTIYI, N1. A., Doc Phys-Math Sci (diss) -- "11-7w methods and res-alts of lin-,,estl-
eating the kinetics of luminescence and photoconductivity". L,~nin.~~rad, 1960.
32 PP (State Order of Lonin Optical Tnst im S. I. Vavilov), 2C)O copies
M, No 14, ig6o, 125)

68699
S/031/60/008/02/028/036
Ejoi/E391
AUTHORS: Tolstoy, N.A. and.Ryskin,
TITLE: Superlinearity in the Luminescence'//and Photo-conductivity
Phenomena and the Rose-Bubo Tre'�ry
PERIODICAL: Optika i spektroskopiya, 1960, Vol 8, Nr 2,
pp 272 - 274 (USSR)
ABSTRACT: Experimental evidence indicating simultaneous superlinear
dependence of luminescence and photo-conductivity on the
excitation intensity E (Ref 1) makes it desirable to
attempt a unified treatment of these phenomena. Since
explanation of the superlinearity in photo-conductivity
is easier, we shall consider it first. The change in
photo-conductivity Acb, is given by:
b'a Ep-ru (1)
00
where A is the quantum yield of electrons to the
.conduction band, lc~ is the carrier lifetime in the
conduction band and u is the electron mobility.
To explain the phenomenon of superlinearity it is necessary
Cardl/3 to assume that at least one of the three quantities ~r

Superlinearity in the Luminescence
and the Rose-Bube Theory
68899
S/051/60/008/02/028/036
EJRI~1132'nductivity Phenomena
and 0 0- 0
0, 'r, or u rises with increase of E Rose (Ref 5)
and Bube (Ref 6) suggested that 'Y, rises with E .
From Rose and Bube's theory it follows that the initial
rate of fall of the photo-conductivity should be strictly
proportional to the excitation intensity E , i*e&
Acr'(0) - E
(2)
To check Eq (2) the present authors carried out experiments
on superlinear photo-resistors based on CdS. The authors
used the electrical differentiation method described by
Tolstoy (Ref 8). Light was modulated by interrupting
focused light beams with bullets from small-bore rifles.
The differentiated signal was recorded photographically
by means of a pulse oscillograph (detailed description of
the experiments will be given in a later communication).
It was found that Eq (2) is not obeyed at all, that the
dependence of A d'(0) on E is superlinear and that
T(E) decreases slowly with rise of E . These results
Card2/3 show that the main assumptions of the Rose-Bube theory are_

63899
S/051/6o/oo8/02/028/036
Super-linearity in the Lu inescence and MWE921 uctivity Phenomena
0 nd
and the Rose-Bube Theory
erroneous. On the other hand the results are in good
agreement with the main ideas of the two-step theory
(Refs 3,4) which assumes a rise of the quantum yield 0
with E . There are 9 references, 6 of which are Soviet
and 3 English.
SUBMITTED: July 10, 1958
Card 3/3

TKAOHUK, A.M.; TOLSTOY, N.A.
luminescence of ethanolamine compounds of platinum. Opt. i spektr.
9 no.2:261-264 Ag 16o. (MIRA 13:8)
(Luminescence) (Platinum compounds)

I TOLSTOY, N.A-
Ninth Conference on JAminescence (crystal phosphors). Opt. i spektr.
9 no.2:277-279 Ag 160. (WRA 13:8)
(luminescence-Congreeees)

83371
s/or>1/60/009/00-3/010/011
2201/3691
AUTHORSt Sokolov, V.A., and Tolstoy, N.A.
TITLS s Luminescence of Th~llium Chloride P1
PBRIODICA.L: Optika, I spektroskopiya, 1960, Vol. 9, xo. 3, pp. 421-423
TEXT% The authors investigated luminescence of thallium chloride monocrystals
in an atmosphere of pure helium. Monocrystals were grown by a modified
Stockbarg'ar method in sealed Pyrox-ampoules. The initial powder(used to grow
monocrystals) was recrystallized twice in very pure distilled water and heated
In vacuum for 3-4 hours at 200-220%. -Test samples of'1.5 x 10 x 15'mm
dimensions and 100 g -weight were cut from monocrystals. They were polished
with a piece of flannel soaked in an aqueous solution of thallium chloride and
dried in vacuum for 2-3 hours at 1100C. Preparation of the samples vas carried
out using exclusively red illumination (X > 600 MO. Luminescence -was excited
-with & mercury line of A = 366 mIL from an SVDSh-260 lamp. A monochromator UM-2
was used and the spectral distribution of intensity was recorded with a
photomultiplier M-22 and a microammeter M-96. During measurements the samples
were kept in an atmosphere of pure helium and all heat treatments were carri*d
Card 1/2

8337-1
a/061/60/Oog/003/010/011
3201/3691
Luminescence of Thallium Chloride
out in darkness. The following results were obtained. Blue lumineacence
(a 55 nqL wide band at 460 mlij Fig. a, curve 1) was observed in pure crystals.
It, was' due to structural defects whose density depended on thermal history
of'the crystals. A band with a maximum at 620 m1i (Fig.,d, curve 1) was
produced by plastic deformation. A band with a maximum at 740 m1i appeared
after heating in dry pure helium (1-10 = Hg) at 260-3.500C; it was due to
loss of chlorine. Illumination with ultraviolet light (365 m:~L) above -1500G
reduced luminescence intensity (Fig. a, curve 2) in contrast to heating in
darkness -which intensified luminescence. This contradicts conclusions reported
by Vysochanskiy (Refs. 3, 4). Recovery of the ability to luminesce of samples
do-excited by ultraviolet illumination occurred probably duo to decomposition
of quenching contras by heating In darkness. Continuation of this work will be
reported later. There are 2 figures and 7 reforencess 2 Soviet, 3 English,
I German and 1 translation into Russian.
SUBMITTEDt April 16, 1960
Card 2/2

9
TOLSTOT, N.A.; LTU WUN'-YU [IAu bhun.-ful
Relaxation opectrum of cyanite. Opt. i spairtr. 9 no. 6:787-
790 D 160. (MIRA 14:1)
(4anite--fipectra)

~TOLSTOYp N,,Ai,; TKAGHMP A*M.; HISMp Aele
. Mare lumir sconce. Part 3: Effect of the Intensit7 of exciting
and do-exciting light. Opt. i spektr. .10 no,2:220-224 7 I(ap.
(KERA 34:2)
(Luminescence)

20836
9,-Yma S/048/6i/02,5/0020/0251 47
B104/B214
AUTHORS: Tolstoy, 11. A._and Sokolov, R. A.
TITLE: Luminescence of thallium chloride single crystals
PERIODICAL: Izvestiya Akademi.' nauk SSSR~ Seriya fizicheskaya,
v. 25, no. 3, 1961, 375-376
TEXT: Thi's paper was read at the Ninth Conference on Luminescence
(Crystal Phosphors) held in Kiyev from June 20 to June 25, 1960. The
spectral composition and the intensity of luminescence of single
crystals of thallium chloride were studied after different treatments
of the crystals which were bred by the authors themselves. The lumines-
cence was excited by light of wavelength 365 mw at the temperature of
liquid nitrogen; the measurement of the specimens was done in a helium
atmosphere. It turned out that thallium chloride has three luminescence
bands: 1) a blue band with the maximum at about 460 mL,, (Fig. 1, Curve 1);
2) an orange band with the maximum near 620 mAL; 3) a dark-red band with
the maximum at 740 m~L. The blue band appears immediately after breeding;
the orange band appears after plastic deformation (Fig. 1, Curve 2),
Card 1/4

20836
Luminescence of thallium... S/048/61,/025/003/025/047
B104/B214
and the dark-red band after a heat treatment of the specimens in a pure
He atmosphere (Fig. 1, Curve 3). Long exposurSto ultraviolet light
(I = 365 m,~, ) at temperatures lower than -150 C did not lead to any
rempxkaule change in luminescence. At higher temperatures, the intenaity
of the whole spectrum decreaned. In this case, the blue lumineacenoe was
extinguished more quickly than the luminescence of longer wavelengths
(Fig. 1, Curve 4)- Measurements of the intensity of luminescence I in the
maximum of the blue band as a function of the time of exposure to light
of wavelength 365 m/W showed that I decreases hyperbolically with an
increase of t according to the rule I = I,/(l+At),, Here, Io is the
initial intensity and A a constant depending on the temperature and in-
tensity of irradiation. By a parallel measurement of the light trans-
mittance of the Hg line with A = 436m~L, it was found that in this spec-
tral range the transmittance after the exposure does not change markedly
(Fig. 2). Therefore, the weakening of the observed luminescence cannot be
explained as a "filter effect". The decrease of intensity on exposure
is a reversible process: By aging the exposed specimen in -the dark, lu-
minescenoe is restored almost completely. The restoration of luminescence
Card 2A

20836
Luminescence of thallium ... S/048/61/025/003/025/047
B10413214
is accelerated at higher temperatures. It can be assumed that the lattice
defects are the centers of blue luminescence. The orange luminescence
band with its maximum near 620 mt,-results from mechanical defects (dis-
locations); this agrees with as Isumptions made in other paper. The
dark-red band is evidently caused by the impoverishment of the crystals
in chlorine. Possibly an electron from the escaped chlorine atom fills
this place and forms an F-center. There are 2 figures and 3 references:
1 Soviet-bloc and 1 non-Soviet-bloc. The reference to the English-lan&lage
publication reads as follows: Randall 1. T.. Trans. Faradav Soc.,.15.,
6 (1939).
a X 0 Q x
X 0
xx
Card 3/4 XNL I

Luminescence of thallium... it
Legend to Fig. 1: Luminescence
spectrum of thallium chloride
after different treatments of the
crys tal.
Legend to Fig. 2: Change of the
luminescence spectrum and the
transmission spectrum of the Eg
line with ;L = 436 m~tat the
temperature of liquid nitrogen after
exposing the crystal to light of
wavelength 365 MiLiat room tempera
ture. 1) Before exposure;*2) After
exposure for 5 seconds; 3) After
a further exposure for 5 seconds;
4) After still another exposure
foi 5 seconds.
Card 4/4
?08
S/04 61/025/003/025/047
B104PB214
YJ
z
Duo, 700 600
A. 110/1
P11C.

20846
5/048/61/025/0015/0715/047
'?,41160 B104/B20"
AUTHORS: Tolstjo-, N. A.. Tkachuk. A. M., Sokolov, V_ A,,
'furlak_ov-,_9-V Ryskin' A. I., Mansurova, Z. S-, and
Yepifanov, M. V.
TITLE: Flash-heating of ZnS-phosphors and concurrence of
luminescence bands
PERIODICAL: Izvestiya Akademii nauk SSSR, Seriya fizilcheskays.,
v. 25, no. 3, 1961, 399-405
TEXT: This paper was presented at the 9-th conference oil lumlnescene~--~
(crystal phosphors), Kiyev, june 20 to 25, -1960., Flash hea.'J~ng o-47 phos-
phors is related to an accumulation of electrons or holes wh.',:Ai ~7-cc,:rs in
the interval between two excitations. Proceeding from the scheme auggested
by Schbn and Klasens the authors discuss the procesoes ot~c;-arring 4_-n thl_,'
connection with the aid of the scheme shown in Fig. !, They nxplain the
filling of the blue and red luminescence centers with holes ii t-he casu nf
steady excitation. They also discuss the mechanism of flash heating which
leads to the concurrence of blue and red bands which had beGn descr-41,ed
Card 1/7

20846
S/048/61/024/003 '/0 7 5/~_, 4
Flash-heating of ZnS-phosphor3... B104/B202
already by V. L. Levshin. On the basis of these considerations the
authors study the dependence of the steady luminescence of short-wavp
ba:nds on the intensity of the exciting light at different temperatures-
Fig. 1 graphically shows the results obtained for different temperatures.
In Fig. Is. wk-Lich holds for very low temperatures, the intensity cf red
luminescence is represented as a linear function of energy. Fig. !b which
approximately holds for room t6mperature shows that red lumine_zcen.-,? has
one constant component and one component depending linearly on E. For some
tens of degrees (Fig. 1c) the intensity of the red lumineseence depends
already nqnlinearly on E. It becomes linear again only in the range of
1000C. This characteristic dependence of luminescerce on the !ntensity Of
the exciting light at different temperatures is essentially eXpla4ned by
the filling of the first and second localization level which depends on
temperature and intensity. Fig. 3 ahows experimental ro,,;ults~ It could
be demonstrated already earlier that the curves of flash hettting ,f Uie
bl---~ and red bands are opposite i,e., if one hole migrates off a blue
center, a loss of a "blue quantum" occurs, if, however, a hole migrates to
a red center, a "red quantum" is emitted.. As could br, proven, this
process is specific and does not always apply. The experimental result$
Card 2/7

20846
S/04 816 11025/',03/02,5/047
Flash-heating of ZnS-phosphors ... 13104/B202
a hown in Fig. 4 clearly shoer a parallelism. In the nhtsnho.,-z stij`e`
red and blue luminescence occur "additively" and llconcur~entiy". Thre
are 5 figures and 9 references: 7 Sovie-c-bloc and 2 non-Soviet-bloc.
LeGand to Fig. 1: 1) conduction
band 2) electron adhesion level JLAAAOAA6
3) red centers 4) blue centers.
A1 and A2 hole levels of, first
and second localization.
card

20846-
S/048/61/025/003/0'-'-5/047
Flash-heating of ZnS-phosphors ... B104/B202
Legend to.Fig. 2: theoretical dependence of steady luminesbence of tho
long-wave bands on the intonnity-Of Mitinglight.
1P
f
LC
-Card -4/7

20~ -
5/048 1 0' 5/00 31035101', 7
Flash-heating of ZnS-phosphors ... B104/B202
Lagend to Fie. 3: Exporimental dependence of steady luminencence ;f tne
long-wave bands on the intensity-of exciting liCht L,) Zns-'lln phosphor
('7,- 5()--4 81g Mn) 6) zns-AP,,Ni T)ho,9T)h or (5-10-3 g1v Ag, 10- gh 'I')
Ito#
10-
IFO -
Ja
90 t. V.
Fr' 1,3
6

S104 1/025/003/035/047
2~
Flash-heating of ZnS-phosphors ... B104 B202
Legend tojig. 4: temperature dependence of steady luminescence of t~,e
blue und rod bLmdo a) ZnU-Ni b) ZnB-Ag,Ni o) ZnG-AgjQojVi.b1aak poiht2t
blue bands, cirolds, k6d bands

Flash-heating of ZnS-phosphors ...
is ://
SS :tY
7s: 7
Is
7S :12
C.
3104 8/61/0 2 5/C~O -)/0."/ 5/047
3104/B202

39868
5/051/62/013/002/007/014
E202/E492
AUTHORS: Tolstoy, N.A., Shun-fu, Lyu, Lapidua, M.Ye.
TITLE: -Lu;Wi-;iescence kinetics of chromium luminophors
III. Ruby, Part I, Luminescence spectra and
relaxation spectra, effect of chromium concentration
and thickness
PERIODICAL: Optika i spektroskopiya, v-13, no.2, 1962,.242-249
TEXT: Using high purity (less than 0.001% heavy metals
contami4iants) alumina as starting material, the authors prepared
polycrystalline samples of synthetic rubies in orderto include
high concentration (8% Cr203) of chromium. The samples were baked
at 1250 to 13000C for 2.5 hours without any'substantial loss of
chromium. The luminescence spectra.inveatigated on the above
samples at -180*C gave broadly the same results as those
previously given by A.L.Schawlow, D.L.Wood and A.M.Clogston
(Phys. Rev. Lett., n0-3, 1959, 271)0 Relative to the R-line
long wavelength,part of the luminescence spectrum was found to be
connected partly with the luminescence of the interacting pairs of
chromium ions I'dimers", and partly due to luminescence of groups
of more than two ions "polymers". The relative intensity of the
Card 1/3

s/051/62/013/002/007/014
Luminescence kinetics E202/E492
dimeric and polymeric luminescence depended in a superlinear way
on the concentration of chromium - for the polymeric luminescence
(diffuaed IR band) the'superlinearity was expressed much more
sharply than for the dimeric. A particularly great role was
played by the reabsorptive phenomena which deform the relaxation
as well as the luminescence spectra when insufficiently thin
samples were used'. It was also found that not only aid the
relative intensity increase towards the long i~avel`engtfis with the
concentration of Cr and the finite thickness of the sample but also
the ratio of the Rj/R2 of the principal doublet depended on the
thickness of the sample.- The relaxation luminescence spectra of
fine powdered synthetic rubies without and with additions of Cr203
ranging from 0,055 to BY* wt, and observed at -180 and 20*C, made
the,authore conclude that it in possible to isolate 6 groups of
lines aild bands with different quenching timos T and that these
tOUPA agree SAUSSAfitially With the datfi9fiverk previously
Optika i spektroskopiya, no.5, ~959, 65 . In additional series
i
of experiments it was also confirmed that the intensity of
luminescence was linearly dependent on the intensity of
excitation 'L and that there was no dependence of relaxation
Card 2/3

S/051/62/013/002/007/014
Luminescence kinetics 'E202/E492-
time on E There are 2 figures and 4 tables.-,
SUBMITTED: may 8, ig6l
Card 3/3
-----------

3395 o
0 0 /181/62/004/007/031/037
B178/B104
AUTHORS; Tolstoy, N. A., Osipov, B. S., and Fomin, G. A.
TITLE: Change in sign of the photo-emf of cuprous oxide
PERIODICAL: Fizika tverdogo tela, v- 4, no- 7, 1962, 1966-1967
TEXT: The change in sign of the photo-emf of Cu 20 was detected by using
the pulsed capacitor method. The advantage of this method lies in the
fact that the photo-emf can be regarded as resulting from a single
excitation of the substance by single pulses in the absence of a residual
excited state. The existence of a residual excitatioA is particularly
marked at low temperatures. At room temperature, Cu2 0 has a p-type
photo-emf which decreases continuously with dropping temperature. An
n-type photo-emf appears between -40 and -800C and increases rapidly with
decreasing temperature. At -1800C, the pulse of the n-type photo-emf is
10 to 20 times stronger than that of the p-type photo-emf,-and 2 to
5 times stronger than the p-type pulse at room temperature. As the
p-type pulse lasts longer, it is possible to observe both pulses at the
Card 1/2

S/1a1/62/004/007/031/037
change in sign of the photo-emf ... B176/h1O4
same time. The relation between the amplitudes of the p- and n-type
photo-emf depends on the wavelength of the exciting light. At room
temperature and in red or UV light only an n-type photo-emf exiato-.
ASSOCIATION: Gosudarstvennyy opticheskiy institut im. S. I. Vavilova
Leningrad (State Optical Institute imeni S. V..Vavilov,
Leningrad)
SUBMITTED: March 21, 1962
Card 2/2

TOLSTOY, N.A.; KHILIKO, G.I.; RYSKIN, A.I.; TRUSCV, A.A.
I---------- ;-~
Relation beWeen luminescent and photoe2ectric phenomena
- in ZnS-Mn. Fiz. tver. tela 4 no.11:3177-3184 N !62.
(MIRA 15:12)
1. Gosudarstvennyy opticheskiy inatitut imeni
S,'I. Vavilova, Leni~grad.
(Lumine cent oubstances)
(Phozoelectricity)

~_V,~3.560
38379
S/07o/62/OO7/OO3/oo6/o26
E132/E46o
AUTHOR: Sokolov, V.A.,.Tolstoy, N.A.
TITLE: Single crystals of the alides of thallium and
certain of their properties
PERIODICAL: Kristallografiya, v-7, no-3, 1962, 389-393
TEXT: Crystals of specially pure TlCl and TlBr were grown by
D. Stockbarger's method (J. Opt. Soc. Amer., v-39, 1949, 731).
The crystals-were grown in sealed pyrex glass ampules, the
materials having been outgassed under vacuum at 170 to 2000C for
4 to 5 hours. A diagram of the apparatus is given. Their
luminescence properties were studied. It was found that short
wavelength luminescence is a propex-ty of these-compounds in the
crystalline state when the number of defects is a minimum.
Long wavelength luminescence is connected with the presence of
mechanical defects and an increase at the long wavelength end of
the spectrum is accompanied by a decrease at the other end.
The luminescence was measured at liquid nitrogen temperature' after
annealing at 2500C. There are 6 figures.
SUBMITTED: June 9, 1061
Card 1/1

S/051/62?/&A-'/00l/Ol0/0lq
3s- 0 0 E039/E420
AUTHORS: Tolstoy, N A,, Liu Shun-fu
TITLE: Luminescence kinetics of chromium luminosconts
II. Gallium oxide: relaxation spectra, reabsorption
PERIODICAL: Optika i spektroskopiya, V-13, no.i, 1962, 112-117
TEXT: Data are derived'on relaxation spectra-of gallium oxide
activated with chromium at different concentrations of chromium
and at different temperatures. It is shown that at -1800C the
relaxation time T is indepandent of the concentration o~' Cr2O3
up to values oZ' (-c ~--2.0 x 10-5 sec' . For.)Iigher
concentrations decreases; at 3.0% CZ-20 0.04 x 10--) sac
for wavelengths of 6088.6 to-731 nz-~L- At 20 T is independent
of concentration of Cr203 for values up to 1% (,z ~--O,14 x 10--~' see)
"o The
and falls to a value of 0.03 x 10-3 see for 3.0' Cr203,
variation of T with temperature practically coinc.-Ades for all
concentrations of Cr203 up to 1%j'and as the above figures shoir
there is practically no dependence on temperature for 3% Cr2O~-
The connection between spectra.1 and relaxation laws in Ga2()3- r
Card 1/2
LX

S/051/62/013/001/010/01~
Luminescence kinetics-... E039/E420
is discussed. - Reabsorption effects are examined by making
measurements on samples of thickness 50 to 70,~L and' 120 to 2601L.
It is shown that for concentrations of UP to 0.3% CrZ03 the value
of T is practically unaffected, but for concentrations of
1 to 3% Cr203 the value of T is ~~_305!a greater for the thicker
samples. In the latter case the relaxation spectrum.is also
changed. It is suggested that work is necessary on vory thin
samples in order to obtain undistorted spectral and relaxation data.
There are 2 figures and 1 table.
SUBMITTED: April 29, 1961
Card,2/2

3 c 6. 6?,'
S/051/62/013/001/009/019
E039/E42O
AUTHORS: Tolstoy, Shun-fu
TITLE: Relaxation spectra. of uranium activated alkali and alkali
earth metal fluorides
PERIODICAL: Optika i spektroakopiya, V.13, no.1, 1962,.107-111
TEXT: Preliminary data on relaxation spectra are determinod for
CaF2-U, 'SrF2-U and BaF2-U and also single crystals of LiF-U
and NaF-U by means of a pulse technique and compared with normal
luminescence spectra. It is shown that the rare earth fluorides
activated with uranium MeF2-U dec.a~r-"at:--differ-bnt- rAt(i~-.'.dt:'diPferent
parts o]V the spectrum. For CaFj-U at -175*C there are three
relaxation times 1.8 x 10- 2.3 x lo-4 and
(2.8 to 2.9) X 10-1 sec. At room temperature
T =-(0.9 to 1.0) x 10-4 sec for the whole spectrum. For SrF2-U
at -1780C there are two values of r: (2.0 to 2.2) x 1o-4 and
(2-5 to.2.6) x lo-4 sec. At room temperature*the luminescence
of SrF2-U is strongly quenched 'r < 10--5 sac. For BaF2-U
Card 1/2

S/051/62/013/001/009/019
Relaxation spectra ... E039/B420
at -18oOc there are four values of T and at room-temperature
the luminescence is completely quenched. In general, the
long wavelength luminescence decays more slowly than the short
wavelength. In the case of LiF-U and NaF-U the difference in
values of T is more significant than for the MeF2-U group.
For LiF-U, T varies by a factor of 4 and in NaF-U by a.factor
of 10. As before, the long wavelength luminescence decays more
slowly than the short wavelength. At concentrations of uranium
of lo-4 g/g eq. the relaxation of nearly all the spectral lines
is practically exponential and as the uranium concentration is
increased the relaxation deviates from the exponential.
This paper was presented at the 9th Conference on Luminescence
at Kiyev (July 1960).
There are 2 figures and'l table.
SUBMITTED: Apr11 29, 1961
Card 2/2

s/o5i/62/012./006/008/020
E075/E436
AUTHORS: Liu Shun-fu
TITLE: Kinetics of Slow of chromium luminophors.
1. Gallium oxide. lat part.
Method: Temperature and concentration dependence of
glow spectra
PERIODICAL: Optika i spektroskopiya, v.12, no.6, 1962, 738-745
TEXT: The authors initiated a broad study of relaxation spectra
of a number of luminophors activated with Cr. The present work
is devoted to Ga203- The glow spectra were obtained by the
excitation of the samples with an impulse source in the-ultraviolet
("'1330 millim-icrons) and visible region. Samples of Ga203-Cr in
a powdered form were prepared by Foster-Stumpf method (J. Amer.
Chem.'Soc., v.73, 1951, 1590) with Cr concentrations of 0.01,
0.03, 0.1, 0.3, o.6, I and 3%. It was shown that a-Ga203-Cr
does not glow when subjected to photo- or cathode-excitation,
whilst O-Ga2O3'Cr gives a bright glow with spectrum lines
agreeing completely with the lines given by Deutschbein. It was
thus shown that Deutschbein's isomorphism principle is not correct
Card 1/2

S/05l/62/012/oo6/oo8/o2o
Kinetics of glow ... E075/E436
for P-Ga203- Spectra of the samples with 0.03, 0.3% Cr are
practically the same and are characterized by the main doublet with
components Rl (696 m1i) and R2 (688 m~L). In the samples
containing 0.6% Cr, two additional lines appear at 696 8 and 698.3r4L.
The intensity of these lines increases rapidly with the
concentration of Cr. A very characteristic property of the
samples containing 3% Cr is the appearance at -1800C of a bright
diffuse glow in the infrared part of the spectrum. The glow
spectra becomes more diffuse with the increasing temperature and
the maxima of the lines shift towards the longer wavelengths.
The total glow at room temperature is, if anything, stronger than
it is at'the lower temperature. Heating to 1600C of the aamples
with 1% Cr showed no quenching effect but the longer-wave and
antistoke regions of the spectra became more intense at the cost
of the glow in the region of the main doublet. Thus the long-wave
glow is thermally activated. There are 7 figures and 1 table.
SUBMITTED: April 29, 1961
Card 2/2

39873
S/051/62/013/002/013/014
E032/E514
AUTHORS: Tolstoy, N.A. and Yepifanov, M.V.
TITLE: ;Cmu-1tilamp source of modulated light for-a pulse
taumeter
PERIODICAL: Optika.i spektroskopiya, v-13, no.2, 19b2, 291-294
TEXT: The authors describe'a multilamp modulator.- Sixty
pulsed*lamps of type WOK-120 (IFK-120) are arranged on the
periphery.of a disc which revolves with an angular velocity of
10 r.p.m. Each lamp gives rise to a flash each time it p4sses
through the focus of the parabolic quartz condenser. iThis is
equivalent to a source of light producing 10 pulses/sec. Each of
the lamps remains inactive for 6 sec after produc7ing the flash,
which corresponds to the normal single-shot operating conditions.
The lamps are fired by discharging 1300 11F capacitors through them,
the capacitors being charged by a germanium rectifier to 300 V
each. *The capacitors rotate together with the lamps and contact
is made through special brushes. Provision is made for *the
adjustment of the "phase" of the rotating disc, i.e. the position
Card*1/2

A multilamp soiirce of S/051/62/013/002/013/014
E032/E514
of the lamps relative to the optical axis of the condenser. There
are 12 figures.,
SUBM'ITTED: Mar*c-h 6, 1962
Card 2/2

L 18747 DIP(-q-)/EWT(m-)/FDS - -.AFFTt/ASD..-
-63.,
8/2941/63/WI/000/0160/0167
~Auut;551011 Mr, 'AT3002222
!AUTHORS: Sokolov, V. A*~ Tolstoy, N, A.
TITLE: VA
The nature of luminescence in thaniumchloride,
SOURCES Optika i spektroakopiya; sbornik statey. v. IS Lyuminestsentsiya,
MOSCOw. Izd-vo AN SSSR, 1963, 160-167
i
TOPIC TAGSs luminescence, electronic transition, colloid, emission band
ABSTRACTS The authors have analyzed two theories put forth to explain the nature
lof luminescence in thallium chloride, The first, by H, Gobrecht and F. Becker
'(Zs* Physo) 5.9 553, 1953) attributes blue radiation of T101 to microquantities'
of water in a TIJC"l specimen playing the role of activator of blue luminescence.
The red 'emission 'band is considered to be the result of a mechanical defect.
jThe second, by A. S. Vy*sochanskiy (Kando diss., Odessa, 1953; DAN SSSR, n2, 22E.,
:1257), attributes the blue luminescence band to electronic transition in single
ihyperstoichiometric thallium atoms,, and the red band to thallium atoms entering
!'the colloidial state. Several sets of experiments were performed in which the-
ffects of water, C12, and TI are studied independently on thallium chloride in
Card 1/2

L-16.747-763..,
;ACCFMION NRi AT3002212*
'."!vacuume The results refute all above theories except the red band assumption of
lGobrecht and Baker, which is attributed to defects in.the crystal structure*
i0rig. art. hast 7 figures*
ASSOCIATION: none
SUBMITTED: 23maY62 DATE ACQs 19May63 ENCL't 00

L 19481-63 E7.-ri (J)pz;lr(q)pzJ.T(m)/F-4P(B)/BDS AFETC/ASD/IJPCC)/SSD JD
S/29hl/63/001/000/0257/02A-O-
ACCESSION i: AT3002230
AUTHOR& Rlskin, A. ~Tolstoyj N~ A,
w,
-Mbeha is
TITLE: Excit ati on ~ener. a vi -in .,ZnS-M~ pho phors
URCE: Optika i spe ktrio'. skob iya:i~ s"
so .. bornik atey. v 1: Lyuminestsentsiya.
Moscow, Izd-vo AN SSSR, 1963j, 257-260
!TOPIC UGS: excitatlon$ interaction#' dipole transition. orange band, absorption - -
ASMACT: The energy transfer process of Mn2* ions in.ZnS-Mn has been studied.
The assumption is made that at low.temperature3 this'excitation energy occurs in
2
~blue centers (spots) lying on th. periphery of interaction Vith the Mn + ions.
The radius of this interaction Rk., is designated as the ratio of orange band in--
2
tensity (produced by Mn + ions~ to the integrated light intensity. Values Of Rk
:,are tabulated for various annealed phosphor specimens. ' It is shown that di Ole-
dipole energy transitions between blue centers exists only in a region of 2
Apart 'from dipole-dipole energy transitions, probability of interchange transi-
tions aepends on the extent of blue centers; large magnitudes of the latter being
compensated for by small magnitude, overlapping, integrated spectra of radiation
and absorption. A-calculattion is made of the distance R between blue canters and
card 1/2

L 19461-63
tESSION MR: AT3002230
C
A
!,~blule center concentration in ZnS, It is found teat contactin~g.blue centers j
start at a concentration level C 0.3%, The authors contend that - a large concen-
tration of blue centers is necessary'to allow interchange. interactions to occur.
:Orig. art. has: 2 tables.
iSSOCIATION: none
SUBMITTED: 20Jun62' ~DATE ACQ; 19Mav63 ENCL: 00
-SUB CODE: PH
i,NO REF SOV: 007 OTHER: 008
f;
d 2/2
.Car

TOUSTYKIll V.I.) filAh.
;--y w, capitt-1 in-!ejtments and
Deterw4ning the eccnor--c effiz:10n a
L
calmlation of renovation deductions. '.-udy M&I-IT
(mlRA 1-7-.9)
163.

09/03 1
S/051/63/QI4/ool/o
E039/E120
-fu
iAUTHURSt TolstoY, N. and Liu Shun
TITLEj Luminescence kinetics of chromium luminophors.
V. Beryllium spinel activated with chromium
PERIODICALs Optika I spektroakopiyal v.14,*no..It 1963, 49-.56
TEXT: Data are presented*on the temperature and concentrati6w,
dependence of-the luminescence and relaxation spectra of beryllium&_
spinel activated by chromium. BeAl Cr is prepared in__j~owd'ejr
204
form with --c 0 ft-"fff_r a flidns7--~b f -0. -1-i --- 0.5 and 1% Cr,-and measurements
were made oil samples.100 1L thick. At -180 C and for 0.1% Cr~the_.-
main doublet is observed, also the 682.3 inL line and the weak
697-7 mIL N line. For the 0. 5% Cr sample the intensity of the
N line is sharply incr4ased and on both sides of it a series.of
new lines appear. At Cr the intensity of the N and othdr-
t.secondary lines is incz~~eaaed again. There are three basic parts
to the spectra at low temperatures: a) the,~maln doublet radiate&
from separate Cr jeentres " ftonomers#?; b) N-lines and other -lines'
from 682.3 to.743-1 aqt resulting from the "dimer" form of Cr ion
and c) Infrared bands depending on the "polymer" form of Cr
Card 1/2

S/051/63/0'14/001/009/031
Luminescence kinetics of chromium..
E039/E120
centres. At 20 OC the spipqtra have a different form; firstly, on
the short wavelength side,.of the doublet isla,well developed anti-i-
Stokes region; secondly,,t~he long waveleng~h,part loses its sharp
structure; band, thirdly,,t~he concentration v riation is qIjite
, 10
different from that at -140'0C. An examina~lon of relaxation
spectra at -180 *C shows teat the most chare4eteristic, feature. in
a number of cases is the p -exponential relaxation law.i The
op
interpretation of these d~,pendences is based'on'&.comparison or
the dif f erent nature of thi luminescence.. cenkr"emi.yesponsible -for
'Oect
ihe different parts of the radiated a rag..
-There are 4'f igures and '2 'ta6les'-*
SUBMITTEDj November lli .19.62
Card 2/2.
L

45085
s/o3l/63/014/001/027/031
E039/E120
.AUTHORS: 'jols~o~ TkachUk, A.M., and Ageyeva, L.Ye.
_Y, N.A.,
;..TITLE: Some manifestations of the non-molecular excitation
mechanism of platinocyanide
PERIODICALs Optika i spektroakopiya, v.14, no.1, 1963, 163-165
-TEXT: Platinocyanides excited at.liquig nitrogen temperature.-..'
and subsequently heated at o.6 deg/sec attaih.maximum thermo-
'..:luminescence at -120 K. The.6stimated depth of level Is derived
'from the formula:
2
U =,"k T x) f)
ma
where 6 is.the half width of the peak given in the table. Water-
.,of crystallisation is shown to have no ;affect on-thermoluminescence,
;The dependence of relaxation time v on the intensity of
rexcitation E is investigated. Using the mechanical ultra-taumeter
method it was found that T does not depend/oln 'E. By using the
pulsed ultra-taumeter method (i.e. with a pufsed ultraviolet lamp
WC-3 (IS-3)).an excitation density of 1017 q"nta/cm2 is attained.
.;In this case in.the "normal" regime of x tation c -r-mains
e ci
C
ard 1/3

5/051/63/014/001/027/031
Some manifestations of the
K E039/EliO
constant but on increasing-the excitation"deifaity to maximum T
'r differs
.begins to dedrease with increase in E. The'vAlue of
by 25-30% fof different saltig. The decrea6o id -r with increase
in E occurs at'room tempe'rAture as ;tell as '#i liquid nitro�en

:,.--,,--temperature. "The absence of pho t
toconductiVi y and photo-e#Mof&
i,is typical for pure monomoPecular mechanisms.1"Photoelectric effects
-investigated using a Bierman4condenser and a Fpillsed lamp t4c~k -120
(IFK-120).with a YcpC-l OjiS-i) filter showed,that plat inocyAnides
.give a well defined-diffusiph photO-O,Mfo ai(86al.. Electron and
--hole effects are observed. these:effacts clearly show the
;monomolecular mechanism of ,excitation and.relaxation in
.~platinocyanides.
-There is 1-table,
'SUBMITTEDs July 29 1962

~Card 2/3
,

j

Some manifestations of the
Composition of salt
s/o5i/63/014/001/027/031
E039/EI 20
Table
T
$ c a, C, U, ev
max
Li,[Pt(CN)1,1-4H 0
2 -141k 29 0.05
Li 2~Pt (CN) 1,3 - xH20 -152 29 0,04
K ~Pt (CN)43
2 #3H20 -158 38 OaO3
Ba ~Pt(CN)43-4H 20 -146 16- - 6. 08
Mg [Pt (CN)41 - 4H O-p.
2 -146 30 0.045

L 10180-63 EW (1) 1W (a) /EWT (m)/BDS/~MG (b)-2-
ACCESSION NR: AP3000587 6/0051/63/014/005/0691/0699
AUTHOR: ThIstoy, N. A.; Abr A. Ps
TM., .1d'hetiesi.0f, emission of chromiw1uni_ L Me ruby (Part 3)
nop~ors VI
On'the -interaction of chromium ions. Steady-state emission
SOMCE: Cptika i spektroskopiya, v. 14, no. 5, 1963, 691-699
TOPIC TAGS: luminescence of ruby
The seventh article in a series on the kinetics of emission of
chromium luminophors reports the results of quantitative studies of the
ratio of steady-state emission intensity of side lines ("dimer" emission)
to main doublet emission intensity ("monomer" emission) in finely powdereci
ruby (microcrystals &-own from solutions) having various ar concentrations.
This ratio increases with concentration, first linearly and then
sLTerlinearly." Zhe intensity of the linear section can be explalned on
the basis of dimer "density" theory only if it is assumed either that the
absorption of the excitation light is 10 times greater for d1mers than for
monomers or that the nuffloer of dimers is 10 times greater then statistically
Card 1/2

L 10180-6
02
A,CCESSIO NR: AP3000587
predicted. Analysis of the superlinear section shovs sensitization of the
dimers by the-monomers, beginning at 0.25% Cr concentration. This
sensitization decreases with increased temperature. An alternate
explanation of the linear and superlinear sections, based on dimer properties,
is offered. Mncmer emission of the ruby is shovn to have an extension into
the long-wave region. The emission from this region increases with increased
temperature. "The authors warmly thank P, P, Feofilov for his valuable
discussions." Orig. art. has: 5 figures, 5 formulas, and I table.
ASSOCIATION: none
SUBUTTED: 20jul6p- Dm Acq: 12jun63 ENCL: 00
-Com; 00 NO REF SCV: 007 OTHER: 000
i!;DP
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S/o3l/63/014/003/008/019
9039/EI20
AUTHORS .s Totata*r-~-, and Liu Shun-fu
TITLEs Luminescence kinetics of chromium ludinaphara.
VI. Composite Al 20 3* Ga203-Cr system and magnesium
-spinel activated by chromiusm
'PERIODIC4ILs. Optika i spektroskopiyas v.14., no.3, 1963j, 378-382
TEXT., The effect of'structure and deformation of the crystal
lattice on the luminescent- and relarxqtt-ion -spectra of mixed crystals
of oxides of aluminium and gallium activated by chromium
(Al Ga ),P,-Cr is investigated. This ban a A-Ga.0. type
X 100-x
:lattice for x = 0 to-59% and a-A'203 type lattice for x = 80 to
100% in the samples used,- The Cr concentration in 0.414. For
x = 80% the dependence of the relaxation time TR on absolute
temperature levels off to a plateau at low temperatures - 100 K
with an activation energy of o.16 eV. with x = 59% the plateau is
shortened and the activation energy to 0,11 eV. For pure
P-Ga2 03-Cr the activation energy is o.o63 eV and at higher
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s/031/63/014/003/008/019
Luminescence kinetics of chromium.*. E039/9120
temperatures the activation energy is-increased. Data are
presented on the spectral and relaxation properties of Mg spinel
activated by chromium (M&A.12 04-Cr). This is characterized by a
markedly non-exponential relaxation law. At room temperature the
relaxation time is about 7 X-10-5 see, while at 100 *11 it is
-2 -e
1
0 5 c6
There are 3 figures and I table.

N
RYSKIN, A.I.; TOLSTOY, N.A.; KHILIKO, G.I.
Flashlike rise of luminescence. Part 4. Opt. i spektr. 15 no.5.-
659-666 N 163. (MIRA 16:12)
1

TOLSTOYP N.A.; TKACHUK, A.M.
_--
Ultra-taumeter with a pulw tube. Opt. i spektr. 15 no-5:698-704
N 163. (IMIRA 16: 12)

TOLSTOYP N.A.; vy-FI)IFANOV, M-V-
I-i8ht P'llse emitted by a flash lamp. ODt.
Shape of the (MIRA 17;5)
spektr. 16 no. 4:677-683 Ap 164.