EUeA?ANUeEEE AeA?AEAAIEE OI?AA?NEOAO
?IAI? ?AAIA O?AIEA
OAeE 537.311.33
IAEUeIEE
Ieaenaiae? Eineiiae/
NO?OEOO?A OA O?CE*I? AEANOEAINO?
AAAAOIEIIIIIAIOIEO OAEUeEIAAI?Ae?A I?Ae? ? N??AEA
01.04.10 – o?ceea iai?ai?ia?aeiee?a oa ae?aeaeo?ee?a
A A O I ? A O A ? A O
aeena?oaoe?? ia caeiaoooy iaoeiaiai nooiaiy
eaiaeeaeaoa o?ceei-iaoaiaoe/ieo iaoe
EUeA?A -1999
Aeena?oaoe??th ? ?oeiien
?iaioa aeeiiaia ia eaoaae?? o?ceee iaoae?a Euea?anueeiai aea?aeaaiiai
oi?aa?neoaoo ?iai? ?aaia O?aiea I?i?noa?noaa ina?oe Oe?a?ie
Iaoeiaee ea??aiee: eaiaeeaeao o?ceei-iaoaiaoe/ieo iaoe,
i?ioani?IEEIEAE*OE IEAEN?E AI?Ae?EIAE*Euea?anueeee aea?aeaaiee
oi?aa?neoao ?iai? ?aaia O?aiea, eaoaae?a o?ceee iaoae?a
Io?oe?ei? iiiiaioe: aeieoi? o?ceei-iaoaiaoe/ieo iaoe, i?ioani? NOANTHE
C?IIA?E AANEEUeIAE* Euea?anueeee aea?aeaaiee oi?aa?neoao ?iai? ?aaia
O?aiea, caa?aeoaa/ eaoaae?e caaaeueii? o?ceeecaneoaeaiee ae?y/ iaoee ?
oaoi?ee Oe?a?ie, aeieoi? o?i?/ieo iaoe, i?ioani? O?A?E AeIEO?I
IEOAEEIAE* I?eea?iaonueeee oi?aa?neoao ?i.A.Noaoaieea, caa?aeoaa/
eaoaae?e o?ceee oaa?aeiai o?ea
I?ia?aeia onoaiiaa: ?inoeooo o?ceee IAI Oe?a?ie, eaai?aoi??y ?ici??ieo
yaeu, i.Ee?a.
Caoeno a?aeaoaeaoueny 13 aeiaoiy 1999 ?ieo i 15aiae. 30oa. ia
can?aeaii? Niaoe?ae?ciaaii? a/aii? ?aaee Ae 35.051.09 i?e Euea?anueeiio
aea?aeaaiiio oi?aa?neoao? ?iai? ?aaia O?aiea ca aae?anith:
290005, i.Euea?a, aoe. Ae?aaiiaiiaa, 50.
C aeena?oaoe??th iiaeia iciaeiieoeny a iaoeia?e a?ae?ioaoe?
Euea?anueeiai aea?aeaaiiai oi?aa?neoaoo ?iai? ?aaia O?aiea (i.Euea?a,
aoe. Ae?aaiiaiiaa, 5).
Aaoi?aoa?ao ?ic?neaiee 9 aa?aniy 1999 ?ieo.
A/aiee nae?aoa?
Niaoe?ae?ciaaii? a/aii? ?aaee
aeieoi? o?ceei-iaoaiaoe/ieo iaoe,
i?ioani? E.O.AEAAEE?ANUeEEE
CAAAEUeIA OA?AEOA?ENOEEA ?IAIOE
Aeooaeuei?noue oaie. Oaeueeiaai?aee i?ae? ? n??aea oa
aaaaoieiiiiiaioi? nieaae ia ?o iniia? ? iai?ai?ia?aeieeiaeie niieoeaie c
aaeeeith eiioeaio?aoe??th iin??a no?oio. A caeaaeiino? a?ae o?i?/iiai
neeaaeo oe?eia ?o caai?iiaii? ciie iiaea ci?ithaaoeny o iaaeao 0,050,8 nieaae aeaioaci?.
O ?ic??c? Nu2S – Ag2Sa anoaiiaeaii ?nioaaiiy niieoee CuAgSexS1-x c
aaenaaiiaeueiith a?aoeith oa iaeanoth aiiiaaiiino? 0,3
CuAgSe0,5S0,5 ia? ia?aiao?e a=0,892ii, n=0,74ii. Aia?oa iiaoaeiaaii
a?iioaoe/i? ae?aa?aie noai?a ?ic??c?a Nu2S – Ag2Sa, Nu2S – Ag2Ta.
*aoaa?oee ?icae?e “Ie?aee noeueoinaeai?ae?a i?ae?” i?enay/aiee
aeine?aeaeaiith no?oeoo?e ie?aie noeueoinaeai?ae?a i?ae? oa iniaeeainoyi
?o ?inoo ia iiiie?enoae?/ieo oa ?cio?iiieo i?aeeeaaeeao i?e ??cieo
oaiia?aoo?ao. ??no ie?aee cae?enith?oueny ca iaoai?ciii
“ia?a-e?enoae”, nooe?eueia ie?aea ooai?th?oueny aiane?aeie
eiaeanoeaioe?? e?enoae?o?a. ?ae?enoae?caoe?y ia? iaeiinoaae?eiee
oa?aeoa?, a i?e iiaoi?i?e ?ae?enoae?caoe?? aeaeo?iiiei io/eii aiane?aeie
?aaeia?iaoaaiiy iaoa??aeo ie?aee ooai?ththoueny /?oei ia?aiai? ii?e oeio
“a?ae’?iiee e?enoae”. ?icaeyiooi ??no ie?aie ia iiiie?enoae?/ieo
i?aeeeaaeeao ??ciiai oeio, aeine?aeaeaii oacia? ia?aoiaee, aeyaeaii
aeaoaeoe e?enoae?/ii? no?oeoo?e (aaeioia?, e?aeia? aeeneieaoe??).
Na?aaei?e ?ici?? e?enoae?o?a ia ?ciii?oieo i?aeeeaaeeao — 40 ii i?e 290E
? 60 ii i?e 620E.
?ae?enoae?caoe?y ie?aie i?e iaa??aaii? aei 600E i?ecaiaeeoue aei
ca?eueoaiiy ?ici???a e?enoae?o?a aei 100ii., i?e oeueiio eoa?/ia oaca o
eiiaeainao? ?icaeaa?oueny ca ?aooiie aaenaaiiaeueii?. I?e ni?ia?
oaiia?aoo?ii? ?ae?enoae?caoe?? ie?aea ?ico??neo?oueny ? ?oeio?oueny.
Aen?aeueia oaenoo?iaai? ie?aee noeueoinaeai?aeo i?ae? caaaeaee iathoue
aaenaaiiaeueio no?oeoo?o. Ai?oaen?aeueiee ??no ie?aie ia
iiiie?enoae?/ieo i?aeeeaaeeao ?icii/eia?oueny a?ae oaiia?aoo?e 570E.
Iniaeeaino? no?oeoo?e iiyniaii ia iniia? oyaeaiue i?i ooai?aiiy
e?enoae?/ii? ??aoee Cu2SexS1-x oeyoii caiiaiaiiy aoiiaie i?ae? ii?iaeiei
i?aea?aoee, iiaoaeiaaii? aoiiaie Se ? S. E?enoaeia?ao?/i? ia?aiao?e
noeueoi-naeai?ae?a ciaoiaeyoueny o iaaeao ?o cia/aiue aeey Cu2S ? Cu2Se.
Oeiiaei aeey no?oeoo?e ie?aie noeueoinaeai?ae?a i?ae?, iaea?aeaieo i?e
aenieeo oaiia?aoo?ao aai ?ano?oeoo?eciaaieo, ? ooai?aiiy iaaeno?oeoo? c
ia?aiao?aie eii??ee, o o?e-i’youe ?ac?a a?eueoeie ca ia?aiao?e
aeaiaioa?ii? eii??ee noeueo?aeo /e naeai?aeo i?ae?.
O i’yoiio ?icae?e? “No?oeoo?a ie?aie Cu2TexS1-x, CuAgSe oa Cu4TeSe”
iiaeaii ?acoeueoaoe aea/aiiy no?oeoo?e ie?aie Cu2TexS1-x, CuAgSe oa
Cu4TeSe. ?icaeyiooi iaoai?cie ?inoo ? ?ae?enoae?caoe?? ie?aie
noeueoioaeo?eaeo i?ae? Cu2Oa0,68S0,32, iaea?aeaieo ia i?aeeeaaeeao NaCl,
ENl, EAa, nethae?, neoae? i?e ??cieo oaiia?aoo?ao. Anoaiiaeaii, ui ia
i?aeeeaaeeao nethaee, ENl, EAr eiiaeainaoe caaaeaee iathoue
aaenaaiiaeueio no?oeoo?o i?e aeia?euei?e oaiia?aoo?? i?aeeeaaeee.
Aen?aeueia oaenoo?a oa ai?oaen?aeueiee ??no iia’ycai? c i???ioaoe??th
ieiueie (100) ia?aeaeueii aei ieiueie neieo i?aeeeaaeee. No?oeoo?a
noeueoioaeo?eaeo oa iaoai?ci ?? ooai?aiiy noiaea ia no?oeoo?o
noeueoinaeai?aeo i?ae?. No?oeoo?a Cu2Oa0,68S0,32 aecia/a?oueny niiniaii
oeeaaeee ?ii?a Oa, ye? ooai?ththoue iniiaiee, iano/ee ea?ean ??aoee.
?iie n??ee aoiaeyoue o oeae ea?ean ye cai?uoth/? ?iie iaeiaeiai?
aaeaioiino?. Iaoii?noue ?iie i?ae? caiiaiththoue ca iaaiei caeiiii
ii?iaeieie oiaeiaee a ai?iii?e i?aea?aooe? oaeueeiaaio. I?aeaeuaiiy
oaiia?aoo?e i?aeeeaaeee aai a?aeiae ie?aee i?ecaiaeyoue aei iai?aaeaiiai
ci?uaiiy ?ii?a n??ee, aiane?aeie /iai iaeia ?c ieiuei 111 iiai?noth
canaey?oueny ?iiaie oaeueeiaaio iaeiiai ni?oo. Iine?aeiai?noue aei?noeeo
noa? ci?ith?oueny c BaaCaaAa… ia (BaC’aaAa…, aea A, A, N-ieiueie
aoii?a oaeueeiaaio, (, a, a – ieiueie aoii?a i?ae?, N’- ieiueie aoii?a
n??ee. Oaea aii?yaeeoaaiiy i?eaiaeeoue aei iiieaeaiiy neiao??? ??aoee, a
iaeano? c? caaeaiei caeiiii oeeaaeee noai?ththoue iaaeno?oeoo?o. Oea
i?ecaiaeeoue aei iiyae ia aeaeo?iiia?aiao iaaeno?oeoo?ieo ?aoeaen?a
iiaeeco iniiaieo ?aoeaen?a na??? 100. Anoaiiaeaii, ui ia iioeeeo
a?aieoeyo noi?aeieo aeie?a eiiiainaoe?y ci?uaiiy ?aeaioe/ieo ieiuei o
noi?aeieo aeieao ia? i?oaeiee oa?aeoa?, ui i?ecaiaeeoue aei ooai?aiiy
oae caaieo “aioeoacieo aeiiai?a”.
Aeine?aeaeaiiy no?oeoo?e ie?aie AgCuSe oa Cu4TeSe ia neieao
eoaeiiaaei?aeieo e?enoae?a aeyaeee, ui iecueeioaiia?aoo?ia -oaca AgCuSe
i???ioo?oueny ieiueiith (001) ia?aeaeueii aei ieiueie (100) NaCl
(ia?aiao?e ?iia?/ii? ??aoee a=0,928, b=0,631, n=0,402ii.), o -oac?
(eoa?/ia, a=0,6087ii) cae?enith?oueny aii?yaeeoaaiiy c ia??iaeii aai
=3ai , aea ai — ia??iae iniiaii? ??aoee. Ai?oaen?aeuei? ie?aee Cu4TeSe
ia NaCl ooai?ththoueny i?e O>470E c ia?aiao?aie aaenaaiiaeueii? ??aoee
a=b=0,4230, n=0,7065 ii.
Oinoee ?icae?e “Aeaeo?io?ce/i? aeanoeaino? ie?aie neeaaeieo
oaeueeiaai?ae?a i?ae? oa n??aea” i?enay/aiee ?icaeyaeo aeaeo?io?ce/ieo
aeanoeainoae oiieeo ie?aie naeai?aeo oa noeueoinaeai?aeo i?ae? a oaeiae
niieoe AgCuSe oa Cu4TeSe. Ie?aee noeueoinaeai?aeo i?ae? i?e O = 300E
iathoue iaoaeaaee oa?aeoa? i?ia?aeiino? (=5 Ii-1 i-1), eiioeaio?aoe?y
iin??a noaiiaeoue ?=1019- 1020 ni-3, a=20-150 ieA/E. Ie?aee
noeueoinaeai?aeo i?ae? ia nethae? oaeiae ? iai?ai?ia?aeieeaie ?-oeio,
aeaeo?ii?ia?aei?noue ?o i?e 100
iioe/ieo oiiiiao.
Ie?aee Ag2-xCuxSe aeey cia/aiue 0
— eoa?/ia, a=0,6087ii. Aenieioaiia?aoo?ia -oaca Cu4TeSe —
aaenaaiiaeueia, ia?aiao?e ??aoee — a=b=0,4230, n=0, 7065ii.
6. Ie?aee naeai?aeo i?ae? i?e e?iiaoi?e oaiia?aoo?? ? ae?iaeaeaieie
iai?ai?ia?aeieeaie (=5o103 Ii-1 ni-1), eiao?oe??io oa?ii-a.?.n. o
oaiia?aoo?iiio ?ioa?aae? 300-400E ci?ith?oueny a?ae 20 aei 150 ieA/E, a
eiioeaio?aoe?y iin??a i?e O=300E noaiiaeoue ?=1019 – 1020 ni-3 .
Iaoai?ci ?icn?yiiy iin??a ca?yaeo iieno?oueny a i?eiouaii?, ui aaeaioia
ciia neeaaea?oueny c aeaio i?aecii — eaaeeo ? aaaeeeo ae??ie.
7.Oiie? ie?aee noeueoinaeai?aeo i?ae? ? iai?ai?ia?aeieeaie ?-oeio,
aeaeo?ii?ia?aei?noue ?o a ae?aiacii? 100 – 400E aei??aith? 3-6 Ii-1 i-1,
oa?ii-a.?.n. a ?ioa?aae? 300-450E c?inoa? a?ae 50 aei 150 ieA/E.
Iaoai?ci ?icn?yiiy iieno?oueny o i?eiouaii?, ui aaeaioia ciia niieoee
iiaea aooe i?aaenoaaeaia o aeaeyae? aeaio i?aecii — eaaeeo oa aaaeeeo
ae??ie; o oaiia?aoo?iiio ae?aiacii? 240
iioe/ieo oiiiiao.
8. O ie?aeao Ag2-xCuxSe anoaiiaeaii iayai?noue iaeano? c n-oeiii
(0
ie?aie ooai?ththoueny iaaeno?oeoo?e. Aeine?aeaeaii aeaeo?io?ce/i?
aeanoeaino? ie?aie neeaae?a Cu2SexS1-x , Cu2TexS1-x (0,3o0,7), Cu4TeSe,
Ag Cu Se.
Eeth/ia? neiaa: iai?ai?ia?aeieee, oaeueeiaai?aee, no?oeoo?a, oiie?
ie?aee, aeaeo?ii?ia?aei?noue, oa?iiaeaeo?e/i? aeanoeaino?.
Iaeueiee A.E. No?oeoo?a e oece/aneea naienoaa iiiaieiiiiiaioiuo
oaeueeiaaieaeia iaaee e na?aa?a – ?oeiienue.
Aeenna?oaoeey ia nieneaiea o/aiie noaiaie eaiaeeaeaoa
oeceei-iaoaiaoe/aneeo iaoe ii niaoeeaeueiinoe 01.04.10 – oeceea
iieoi?iaiaeieeia e aeeyeaeo?eeia. Eueaianeee ainoaea?noaaiiue
oieaa?neoao eiaie Eaaia O?aiei Ieienoa?noaa ia?aciaaiey Oe?aeiu. Eueaia,
1999.
Aeenna?oaoeey iinayuaia enneaaeiaaieth iiiaieiiiiiaioiuo oaeueeiaaieaeia
iaaee e na?aa?a a ianneaiuo ia?acoeao e a oiieeo ieaieao. Iaoiaeaie AeOA
e ?NA enneaaeiaaii oaciia?aciaaiea a Cu2S-Ag2Se, Cu2S-Ag2Ta, Cu2S-Cu2Se,
Cu2S-Cu2Te, i?aaeeiaeaiu aeiioaoe/aneea aeeaa?aiiu ninoiyiey.
Onoaiiaeaiu caeiiiia?iinoe ?inoa ieaiie iiiai-eiiiiiaioiuo
oaeueeiaaieaeia iaaee e na?aa?a ia iiiie?enoaeee/aneeo (NaCI, EN?, Kbr,
nethaea) e aii?oiuo iiaeeiaeeao. Iieacaii, /oi i?e aunieeo oaiia?aoo?ao
iiaeeiaeee (O>570E), a oaeaea i?e ia?ae?enoaeeecaoeee ieaiie iieo/athony
naa?ono?oeoo?u. Enneaaeiaaii yeaeo?ioece/aneea naienoaa ieaiie ninoaaia
Cu2SexSi-x , Cu2TexSi-x (0,3o0,7), Cu4TeSe, AgCuSe.
Eeth/aaua neiaa: iieoi?iaiaeieee, oaeueeiaaieaeu, no?oeoo?a, oiieea
ieaiee, yeaeo?ii?iaiaeiinoue, oa?iiyeaeo?e/aneea naienoaa.
Melnyk O.Y. The Structure and Physical Properties of Multicomponent
Chalcogens of Copper and Silber. – Manuscript.
Thesis for a cancidate’s degree by speciality 01.04.10 – Physics of
semiconductors and dieleclrics.-L’viv Stale University. L’viv, 1999.
The dissertation is connected with solving of some important and
actual problems on searching of new materials for electronics and
with studying their properties with the aim of practical using. The
ability to exist with significant structural disordering,
departure from stoichiometry, which essentially determine their
properties is the main feature of Cu and Ag chalcohenides. Hence,
during the obtaining of these material in bulk and thin film it is
possible to change the properties in needed direction. These materials
are degenerated disordered semiconductors with significant
compensation and selfcompensation of charge. Interest to multicomponent
Cu and Ag chalcohenides is due to that by changing of composition
of components and structural changes it is possible to produce
materials, wich are usefull to production of solar
phototransformers and thermoelectrotransformers. Such attempts were
done for binary Cu and Ag chalcohenides only, but for
multicomponent systems information is poor.
In connection with thin the experimental study of phase
formation and structure of multicomponent alloys, the formation
features of multicomponent thin films of Cu and Ag chalcohenides on
different substrates at different conditions, obtaining the films
with definite composition and studing their structure and physical
properties is an important problem of physics.
The methods of alloing of binary and multicomponent Cu and Ag
chalcohenides, obtaining of thin films in quasiclosed volume with
using of discrete evaporation method were developed. The studies of
electrophysical properties of complex chemical compounds thin
films was carried out.
The dissertation is devoted to study of multicomponent copper and
silver chalcogens both bulk and think films. Phase formation in
binaries Nu2S – Ag2Se, Cu2S – Ag2Oa, Cu2S – Cu2Se, Cu2S – Cu2Oa have
been investigated by means of X-ray scattering and DTA method. The
existence of chemical compounds Cu2SxSe1-x and Cu2SxTe1-x in Cu2S –
Cu2Se and Cu2S – Cu2Oa alloys was established. The ir crystalline
structure and homogeneity range were determined. The hexagonal lattice
and P63/mmc structural type are the main characteriscs of those
compounds. The growth behaviour of copper and silver multicomponent
chalcogens in monocrystalline (NaCl, KCl, KBr, mica) and amorrphous
substrates is determined. It is shown, that hyperstructure formation
occurs at high temperatures on substrate (O>570E) and upon
recrystallisation of films, which is one step process. The
electrophysical properties of Cu2SexSi-x, Cu2TexSi-x, (0,3o0,7),
Cu4TeSe, AgCuSe and Cu2Se are also investigated. These films show the
high concentration of carriers (1019 -1021 sm-3 ) and thermo e.m.f.
(20-160 V/K). The n-kind of conductivity exists in AgCuSe films and
other show the p-kind. The scattering of charge carriers is explained in
assumption that valence band consists two subbands – light-weight and
high-weight holes. Within temperature range 240
optical phonons.
These samples as well as CdS0,6Se0,4 alloy were evaluated to produce
the solar photoelectrotransformers. All heterostructures, as was
found, are photosensitive and show spectrum selectivity. Obtained
results can be base for the next improvements in practical using of
materials.
Key words: semiconductors, chalcogenides, structure, thin films,
electro-conductivity, thermoelectric properties.
Нашли опечатку? Выделите и нажмите CTRL+Enter
