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Роль макродефектів в електронних та іонних процесах в кристалах і епітаксійних шарах сполук A2B6: Автореф. дис… канд. фіз.-мат. наук / Л.В. Борковсь

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IAOe?IIAEUeIA AEAAeAI?ss IAOE OEPA?IE

?INOEOOO O?CEEE IAI?AIPIA?AeIEE?A

Ai?eianueea Ethaeieea Aieiaeeie??aia

OAeE 539.219.1

?ieue iae?iaeaoaeo?a a aeaeo?iiieo oa ?iiieo i?ioeanao a
e?enoaeao ? ai?oaen?eieo oa?ao niieoe A2A6

01.04.07 – o?ceea oaapaeiai o?ea

Aaoipaoapao aeenapoaoe?? ia caeiaoooy iaoeiaiai nooiaiy

eaiaeeaeaoa o?ceei-iaoaiaoe/ieo iaoe

Ee?a – 1999

15

Aeenapoaoe??th ? poeiien

Piaioa aeeiiaia a ?inoeooo? o?ceee iai?aipia?aeiee?a Iaoe?iiaeueii?
Aeaaeai?? iaoe Oe?a?ie

Iaoeiaee eap?aiee:

aeieoip o?ceei-iaoaiaoe/ieo iaoe, i?ioani?

Eipnoinueea Iaae?y Ian??aia

?inoeooo o?ceee iai?aipia?aeiee?a IAI Oe?a?ie,

i?ia?aeiee iaoeiaee ni?a?ia?oiee

Io?oe?ei? iiiiaioe:

aeieoip o?ceei-iaoaiaoe/ieo iaoe, ipioanip Etha/aiei Ieaen?e A?eoi?iae/

?inoeooo o?ceee iai?aipia?aeiee?a IAI Oe?a?ie, caa?aeoaa/ a?aeae?eii;

eaiaeeaeao o?ceei-iaoaiaoe/ieo iaoe, Eiia?ia Aeueaa?o Aaneeueiae/

?inoeooo o?ceee IAI Oe?a?ie, noa?oee iaoeiaee ni?a?ia?oiee.

Ipia?aeia onoaiiaa: Ee?anueeee oi?aa?neoao ?i. Oa?ana Oaa/aiea,
?aae?io?ce/iee oaeoeueoao, eaoaae?a iai?ai?ia?aeieeiai? aeaeo?ii?ee, i.
Ee?a

Caoeno a?aeaoaeaoueny “ 14 ” aa?aniy 1999p. i 1215 aiaeei? ia can?aeaii?
niaoe?ae?ciaaii? a/aii? paaee E 26.199.01 a ?inoeooo? o?ceee
iai?aipia?aeiee?a IAI Oepa?ie, 252028, Ee?a, ipiniaeo Iaoee, 45.

C aeenapoaoe??th iiaeia iciaeiieoeny o a?ae?ioaoe? ?inoeoooo o?ceee
iai?aipia?aeiee?a IAI Oepa?ie, 252028, Ee?a, ipiniaeo Iaoee, 45.

Aaoipaoapao pic?neaiee “13” na?iiy 1999 p.

A/aiee naepaoap

niaoe?ae?ciaaii? a/aii? paaee

E 26.199.01
Poaeueei A.TH.CAAAEUeIA OAPAEOAPENOEEA PIAIOE

Aeooaeuei?noue oaie. Oe?ieiciii? iai?ai?ia?aeieeia? niieoee A2A6 oe?iei
canoiniaothoueny aeey aeaioiaeaiiy oioi?acenoi??a, oioiaeaoaeoi??a,
niiy/ieo aeaiaio?a, iiooaeieo eaca??a c aeaeo?iiiei caoaeaeaiiyi, oiui.
?ic?iaea iaoiae?a iieaeoey?ii-i?iiaiaai? ai?oaen?? oa iaoae-i?aai?/iiai
aacioaciiai inaaeaeaiiy, yea aeicaieeea iaea?aeaoe ai?oaen?ei? oa?e
niieoe A2A6 c eiioeaio?aoe?th caeeoeiaeo aeii?oie
1 iei, i?eiiaa?oiaaee oa? (1.6).

3.Iieacaii, ui aeei?enoaiiy oiieiai ?ae?enoae?ciaaiiai i?ioa?eo ZnTe
i?ae ai?oaen?eiei oa?ii ZnTe oa GaAs i?aeeeaaeeieith aeicaiey? ciaioeoe
eiioeaio?aoe?th oeaio??a aacaei?ii?ithaaeueii? ?aeiia?iaoe?? ?
i?aeaeueoe ?ioaineai?noue aeneoiiii? oioiethi?ianoeaioe??. A oie aea /an
aeei?enoaiiy oeueiai i?ioa?eo ? iaaoaeoeaiei aeey iiia?aaeaeaiiy
i?ioean?a ?ioa?aeeooc?? Zn/Ga ia iaae? iiae?eo ai?oaen?eiee
oa?/i?aeeeaaeeiea.

Iniaenoee aianie caeiaoaa/a. Aaoi? aeena?oaoe?? aeeiiaea
aenia?eiaioaeuei? aeine?aeaeaiiy, ?acoeueoaoe yeeo iaaaaeai? a ?iaio?, a
oaeiae a oai?/?e ni?aae?oaeiino? ?c ni?aaaoi?aie a?aeiia?aeieo iaoeiaeo
?ia?o i?iaaea o?ce/io ?ioa?i?aoaoe?th aeyaeaieo aoaeo?a oa
caeiiii??iinoae.

Ai?iaaoe?y ?acoeueoao?a aeena?oaoe??. Iniiai? ?acoeueoaoe ?iaioe
aeiiia?aeaeenue ia 18-e I?aeia?iaei?e eiioa?aioe?? c aeaoaeo?a a
iai?ai?ia?aeieeao (ssiii?y, 1995 ?.), ia 23-e I?aeia?iaei?e eiioa?aioe??
c o?ceee iai?ai?ia?aeiee?a (I?ia//eia, 1996 ?.), ia I?aeia?iaei?e
oeie?-eiioa?aioe?? aeey iieiaeeo a/aieo SSPFA’97 (Oe?a?ia, Eaoeeaae?,
1997 ?.), ia 2-e I?aeia?iaei?e oeie?-eiioa?aioe?? o?ce/ieo i?iaeai
o?ceee iaoa??aeiciaanoaa iai?ai?ia?aeiee?a (Oe?a?ia, i. *a?i?aoe?,
1997), ia 27-e I?aeia?iaei?e oeie? o?ceee iai?ai?ia?aeieeiaeo niieoe
(Iieueua, ssoiaaoeue, 1998 ?.), ia Ana?in?enueeiio neiiic?oi? “Aii?oi? ?
iie?e?enoae?/i? iai?ai?ia?aeieee” (?in?y, i.Naieo-Iaoa?ao?a, 1998 ?.),
ia 12-e I?aeia?iaei?e eiioa?aioe?? ii ae?iuoaaiith e?enoae?a (?c?a?eue,
i. ??onaeei, 1998 ?.), ia 4-e I?aeia?iaei?e eiioa?aioe?? SPIE
“Iaoa??aeiciaanoai oa aeanoeaino? iaoa??ae?a aeey ?io?a/a?aiii?
iioiaeaeo?ii?ee” (Oe?a?ia, Ee?a, 1998 ?.) ia I?aeia?iaei?e eiioa?aioe??
ICSSC’98 (Iieueua, Caeiiaia, 1998 ?.).

Ioae?eaoe??. Iniiai? ?acoeueoaoe aeena?oaoe?eii? ?iaioe iioae?eiaai? a 3
noaooyo o oaoiaeo iaoeiaeo aeo?iaeao oa a 4 aeiiia?aeyo ia
eiioa?aioe?yo, ye? iaae?oeiaaii o iaoa??aeao eiioa?aioe?e.

Aeena?oaoe?y neeaaea?oueny c anooio, 5 ?icae?e?a, aeniiae?a ? nieneo
aeei?enoaieo aeaea?ae. Aeena?oaoe?y aeeeaaeaia ia 149 noi??ieao ?
i?noeoue 36 ?enoie?a oa 2 oaaeeoe?.

iniiaiee CI?NO PIAIOE

O anooi? iaapoioiaaii aeooaeuei?noue oaie aeenapoaoe??, aeeeaaeaii ??
iaoo, iaaaaeaii iniiai? ?acoeueoaoe, ui coiiaeththoue iiaecio ?
ipaeoe/io oe?ii?noue ?iaioe, a oaeiae aeai?, ui noinothoueny ??
aipiaaoe?? ? iioae?eoaaiiy iniiaieo iaoap?ae?a.

A ia?oiio ?icae?e? iaaaaeaii iniiai? ?acoeueoaoe ?ia?o, i?enay/aieo
aeine?aeaeaiith aieeao aeeneieaoe?e ia aeaeo?e/i?, ethi?ianoeaioi? oa
iioe/i? oa?aeoa?enoeee iiiie?enoae?a oa ai?oaen?eieo oa??a niieoe A2A6.
Aiae?c e?oa?aoo?ieo aeaieo iieacaa, ui iniiaiee aieea aeeneieaoe?e ia
niaeo?e ethi?ianoeaioe?? oa iioe/iiai i?iioneaiiy e?enoae?a oa
ai?oaen?eieo oa??a niieoe A2A6, ia a?aei?io a?ae ?o aieeao ia aeaeo?e/i?
oa?aeoa?enoeee, cae/aeii iia’yco?ouey c ae??th iaaeaei?iaaieo
aeeneieaoe?e. Inoaii? iiaeooue caoiiethaaoe iin?? ca?yaeo ? ae?yoe ye
oeaio?e aacaei?ii?ithaaeueii? /e aei?ii?ithaaeueii? ?aeiia?iaoe??.
?nioaaiiy iaaeiei aeeneieaoe?e aeaeo?e/ieo oa aeaoi?iaoe?eieo iie?a
iiaea i?eaiaeeoe aei oi?ioaaiiy oaino?a aonoeie noai?a ?, ye iane?aeie,
aei ?icieooy e?ath ooiaeaiaioaeueiiai iiaeeiaiiy. I?ioa iiaeia aeoiaoe,
ui i?ioeane aeaei?oaaiiy aeeneieaoe?e ?ooiieie oi/eiaeie aeaoaeoaie
aoaeooue nooo?ai aieeaaoe ia eeoa ia aeaeo?e/i?, aea ? ia ?ioaa?aeuei?
iioe/i? oa ethi?ianoeaioi? oa?aeoa?enoeee iaoa??ae?a A2A6. Oe? aoaeoe
iiaeooue aeyaeoeny aaaeeeaeie aeey iiiie?enoae?a, a yeeo i?enooiy aaeeea
e?euee?noue ?ooeeaeo oi/eiaeo aeaoaeo?a, a, ioaea, a?ae?a?aaaoe nooo?ao
?ieue a aeaa?aaeaoe?? iioe/ieo oa?aeoa?enoee na?oeiaei?ii?ithth/eo
i?eeaae?a ia iniia? niieoe A2A6. Aiae?c e?oa?aoo?ieo aeaieo iieacaa, a
i?ioeanao aeaa?aaeaoe?? eaca??a c aeaeo?iiiei caoaeaeaiiyi ia iniia?
e?enoae?a CdS aeeneieaoe?yi a?aeaiaeeeany eeoa ?ieue oeaio??a
aacaei?ii?ithaaeueii? ?aeiia?iaoe??. Ia oe?e i?aenoaa? c?iaeaii aeniiaie
i?i aeioe?euei?noue aeine?aeaeaiiy aieeao i?ioean?a aca?iiae?? ainaiaeth
?ooiieo oi/eiaeo aeaoaeo?a ? ?icaeiaii? ia?aae? ?inoiaeo aeeneieaoe?e ia
iioe/i? oa ethi?ianoeaioi? oa?aeoa?enoeee e?enoae?a CdS oa i?eeaae?a ia
?o iniia?. Iieacaii, ui aaaeeeaith ? oaeiae caaea/a aea/aiiy aieeao
aeeneieaoe?e ia ethi?ianoeaioi? niaeo?e ai?oaen?eieo oa??a niieoe A2A6,
a yeeo eiioeaio?aoe?y ?ooiieo oi/eiaeo aeaoaeo?a ? cia/ii iaioith.

A ia?oiio ?icae?e? oaeiae iine?aeiaii ?icaeyiooi ieoaiiy i?i i?e?iaeo oa
iaoai?cie aeaa?aaeaoe?eieo yaeu a no/anieo ?iaeaeoe?eieo neiuei-caeaieo
eaca?ieo ae?iaeao ia iniia? niieoe A2A6. Iieacaii, ui i?e/eia oaeaeei?
aeaa?aaeaoe?? ?iaeaeoe?eieo eaca??a iieyaa? a ?iciiiaeaii? aeeneieaoe?e
a aeoeai?e iaeano? i?eeaae?a (aeaeo?iiii-noeioeueiaaia eiacaiiy oa
ia?aiiacaiiy). O aeiaaeeo iia?eueii? aeaa?aaeaoe?? nooo?aeie noathoue
aeaeo?iiii-noeioeueiaai? ?aaeoe?? oi/eiaeo aeaoaeo?a, i?e oeueiio
iiaeeea? aeaea?aea aeaa?aaeaoe?eieo aeaoaeo?a ia ?aeaioeo?eiaaii. C
iaaaaeaiiai c?iaeaii aeniiaie i?i aaaeeea?noue aeine?aeaeaiiy
no?oeoo?ii? aeineiiaeino? ie?aieo ai?oaen?eieo oa??a aeey aeyaeaiiy
iiaeeeaeo aeaea?ae aeaa?aaeaoe?eieo aeaoaeo?a.

Ae?oaee ?icae?e i?enay/aii aeine?aeaeaiith iai?ioieo i?ioean?a
aca?iiae?? aeeneieaoe?e oa ?ooiieo oi/eiaeo aeaoaeo?a a e?enoaeao CdS
i?ae ae??th ??cieo ia?iaie (a?aeiae?a, ii?ii?iaiiy oeueo?acaoeiaeie
oaeeyie), a oaeiae c’ynoaaiith i?e?iaee noie?a oa iaoai?ci?a
oioinoeioeueiaaiiai ooai?aiiy i?eeeo aeiii??a.

Aeine?aeaeoaaia oioio?i?/ia ?aaeoe?y, OO?, i?io?ea? a niaoe?aeueii ia
eaaiaaieo ia’?iieo e?enoaeao NdS ? iieyaa? a nooo?aiio c?inoaii?
oioii?ia?aeiino? aiane?aeie ii?ii?iaiiy c?ace?a a ?ioa?aae? oaiia?aoo?
350?400 E aeaeeiei na?oeii, ui iaoiiaeaia oioinoeioeueiaaiei a?aeoiaeii
aiaeiaiiae?aieo aeiii??a, ?iia??ii i?aeaocaeueiiai eaaei?th, a ia’?i
c?acea a?ae aeaeo?e/ii iaaeoeaieo noie?a, i?e?iaea yeeo caeeoaeanue
iac’yniaaiith. Oeeie noieaie iiaeooue aooe i?eaeeneieaoe?ei? iaeano?,
iane/ai? i?eeeie aeiii?aie, /e eeanoa?e aoii?a eaaei?th, ui caaaeaee
i?enooi? a e?enoaeao CdS. I?iaaaeai? aeine?aeaeaiiy aeicaieeee c?iaeoe
aea?? i?ae oeeie aeaiia iiaeeeainoyie. Aiae?c niaeo??a AI? iieacaa, ui
e?enoaee, a yeeo niinoa??aa?oueny oey OO?, ? iaiaeii??aeieie ca iii?ii.
Cie?aia, a niaeo?ao AI? aaaaoueio c?ace?a i?e O2*1017 ni-3. I?e e?iiaoi?e
oaiia?aoo?? c /anii (i?ioyaii aeiae) aeo?aei? oa?aeoa?enoeee e?enoaeo
a?aeiiaethaaeeny. Ia e?eaeo a?aeiiaeaiiy aaee/eie noaoe?iia?ii?
oioii?ia?aeiino? niinoa??aaeenue aea? ae?eyiee c ??cieie iaoeeaie, ye?
a?aeiia?aeathoue iiaa?iaiith a ia’?i e?enoaeo aeaio oei?a aeiii??a c
aia?a?yie aeoeaaoe?? ~0.3 oa ~0.4 aA, ui ni?aiaaeathoue c aia?a?yie
aeoeaaoe?? aeeooc?? aeiii??a Cdi oa Lii. Ae?enii, niinoa??aaeanue i?yia
ei?aeyoe?y i?ae aonoeiith aeeneieaoe?e g oa aaee/eiith aoaeoo, a i?e
g2*105 ?iioeuen?a a?aeaoaa?oueny ?oeioaaiiy ae?ai?a
oeio 1. sse iieacaee aeine?aeaeaiiy c?oeiiaaii? iiaa?oi? EA, iaoai?ci
?oeioaaiiy aecia/a?oueny oaoiieia??th ae?iuoaaiiy e?enoae?a ? i?e
PS/PCdS1.6 – iaaeaie
noaaeie?a. ?oeioaaiiy EA2 iaa?oue i?e N>2*105 ?iioeuen?a ia
niinoa??aaeinue.

C iaoith aea/aiiy iaoai?cio iinooiiai? aeaa?aaeaoe?? eaca?ieo ae?ai?a,
oa c’ynoaaiiy, yeee c oaeoi??a, ui i?enooi? a i?ioean? ?iaioe eaca??a,
i?eaiaeeoue aei ?iciiiaeaiiy aeeneieaoe?e, aeine?aeaeoaaany aieea oaeeo
ia?iaie ia oa?aeoa?enoeee e?enoae?a CdS, c yeeo aeaioiaeyeeny ae?aie: 1)
ii?ii?iaiiy neaioth/ei aeaeo?iiiei io/eii (A=75 eaA, ?=70 A/ni2) a
oaeaa?c?eiiio ?aaeei? neaioaaiiy; 2) ii?ii?iaiiy eaca?iei io/eii i?e
aia?a?yo eaaio?a, iaioeo ca oe?eio caai?iiaii? ciie noeueo?aeo eaaei?th
(h15 K). I?ioa oe? oa?aeoa?enoeee ? oeiiaeie aeey nioa oae caaiiai
aeeneieaoe?eiiai aei?ii?ithaaiiy, ui niinoa??aaeenue ?ioeie
aeine?aeieeaie a iaoa??aeao niieoe A2A6. Oea aeicaieeei iia’ycaoe
aeyaeai? nioae c e?i?eieie aeaoaeoaie no?oeoo?e. I?eionea?oueny ui
oeaio?e, ye? a?aeiia?aeathoue ca nioao I1C, iia’ycai? c iaaeaie
noaaeie?a o iica?/i?e no?oeoo??.

Anoaiiaeaii, ui aeei?enoaiiy oiieiai ?ae?enoae?ciaaiiai i?ioa?eo ZnTe a
ai?oaen?eieo oa??a ZnTe/GaAs i?ae ai?oaen?eiei oa?ii oa i?aeeeaaeeieith
i?eaiaeeoue aei iie?auaiiy iioe/ieo oa?aeoa?enoee oa??a, a naia aei
ciaioaiiy eiioeaio?aoe?? oeaio??a aacaei?ii?ithaaeueii? ?aeiia?iaoe??,
oi/a ? aeyaey?oueny iaaoaeoeaiei aeey iiia?aaeaeaiiy i?ioean?a
?ioa?aeeooc?? Zn/Ga.

C aeei?enoaiiy ?acoeueoao?a ?aeaioeo?eaoe?? i?e?iaee e?i?e I1C ? Ix
i?iaaaeaii aeine?aeaeaiiy ?iciiae?eo e?i?eieo oa oi/eiaeo aeaoaeo?a ii
aeeaei? ai?oaen?eieo oa??a. Aeey oeueiai aeei?enoiaoaaeinue iioa?iaa
o?aaeaiiy, a oaeiae (aeey aeiaaeeo oa??a ZnTe) ?a?no?aoe?y niaeo??a
oioiethi?ianoeaioe?? i?e caoaeaeaii? na?oeii ??cieo aeiaaeei oaeeue
(476?514 ii, Ar+-eaca?) c iaeano? ciia-ciiiiai iiaeeiaiiy. Aeei?enoai?
aeiaaeeie oaeeue caoaeaeaiiy a?aeiia?aeathoue eiao?oe??ioai iiaeeiaiiy,
ye? ci?iththoueny o aeineoue oe?ieeo iaaeao: 104?105 ni-1. Iieacaii, ui
oiano? (>1 iei) ai?oaen?ei? oa?e ye ZnSe, oae ? ZnTe i?noyoue 2 iaeano?
c i?aeaeuaiith eiioeaio?aoe??th oi/eiaeo oa iae?iaeaoaeo?a: iaeanoue
iiaeeco iaae? iiae?eo A2A6/i?aeeeaaeeiea ? oiieee (1
iei) ai?oaen?ei? oa?e e??i iaeano? iiaeeco iaae? iiae?eo
A2A6/i?aeeeaaeeiea, i?noyoue ua iaeio iaeanoue c i?aeaeuaiith
eiioeaio?aoe??th oi/eiaeo oa iae?iaeaoaeo?a – i?eiiaa?oiaao iaeanoue
oiaueiith 1 iei) neiaa niaea?aeeo iiauoaiioth eiioeaio?aoeeth i?ioyaeaiiuo e
oi/a/iuo aeaoaeoia.

Abstract

Borkovskaya L.V. Role of macrodefects in electronic and ionic processes
in crystals and epitaxial layers of II-VI compound.-Manuscript.

Thesis for a candidate degree in physics and mathematics by speciality
01.04.07 – solid state physics. – Institute of Semiconductor Physics of
National Academy of Sciences of Ukraine, Kyiv, 1999.

It is shown that dislocation decoration by points defects in CdS
crystals leads to extension of fundamental band edge in long wavelength
region due to state density tail formation in near dislocation regions.
These effect is established to manifest itself in transformation of
edge photoluminescence spectrum shape and degradation processes in
electron beam pumped lasers. Effect of athermal gathering of donors on
dislocations under pulse ultrasound is revealed. It is shown that
photostimulated formation of shallow donors in CdS crystal volume is
caused by dissociation of clusters which consist of cadmium atoms.
Photoluminescence lines connected with macrodefects are identified in
ZnTe/GaAs and ZnSe/GaAs epitaxial layers. It is shown that near surface
region of these layers contain increased concentration of linear and
point defects.

Key words: dislocation, decoration, laser.

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