Characterisation of CdBeSe alloy by spectroscopic ellipsometry and photoluminescence

被引：16

作者：

Wronkowska, AA ^{[1
]}

Wronkowski, A ^{[1
]}

Firszt, F ^{[1
]}

Legowski, S ^{[1
]}

Meczynska, H ^{[1
]}

Marasek, A ^{[1
]}

Paszkowicz, W ^{[1
]}

机构：

[1] Univ Technol & Agr, Inst Math & Phys, PL-85796 Bydgoszcz, Poland

来源：

11TH INTERNATIONAL CONFERENCE ON II-VI COMPOUNDS (II-VI 2003), PROCEEDINGS | 2004年 / 1卷 / 04期

关键词：

D O I：

10.1002/pssc.200304136

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Optical and luminescence properties of Cd0.925Be0.075Se crystal grown by the modified Bridgman method are reported. Ellipsometric spectra were measured in the photon energy range 0.75-6.5 eV for a high symmetry orientation of the optic axis (c axis) being perpendicular to the air-substrate interface. The structure in the complex dielectric function was identified as E-0(A), E-0(C), E-1(A), E-1(B), E-1(C), and E-2 threshold energies. A large bowing of the main energy gap was estimated. Luminescence spectra were measured in the temperature range from 38 K to room temperature. Exciton emission at room temperature has a maximum at 1.873 eV.

引用

页码：641 / 644

页数：4

共 17 条

[1]

ASPNES DE, 1980, HDB SEMICONDUCTORS, V2, P123

[2]

AZZAM RMA, 1977, ELLIPSOMETRY POLARIZ, P274

[3] ELECTROREFLECTANCE AT A SEMICONDUCTOR-ELECTROLYTE INTERFACE [J].

CARDONA, M ;

SHAKLEE, KL ;

POLLAK, FH .

PHYSICAL REVIEW, 1967, 154 (03) :696-+

[4]

Ivanov SV, 2000, PHYS STATUS SOLIDI A, V180, P275, DOI 10.1002/1521-396X(200007)180:1<275::AID-PSSA275>3.0.CO

[5]

2-J

[6] MBE growth and properties of bulk BeCdSe alloys and digital (BeSe:CdSe)/ZnSe quantum wells [J].

Ivanov, SV ;

Toropov, AA ;

Shubina, TV ;

Lebedev, AV ;

Sorokin, SV ;

Sitnikova, AA ;

Kop'ev, PS ;

Reuscher, G ;

Keim, M ;

Bensing, F ;

Waag, A ;

Landwehr, G ;

Pozina, G ;

Bergman, JP ;

Monemar, B .

JOURNAL OF CRYSTAL GROWTH, 2000, 214 :109-114

[7] OPTICAL-PROPERTIES OF ZINCBLENDE CDSE AND ZN(X)CD(1-X)SE FILMS GROWN ON GAAS [J].

KIM, YD ;

KLEIN, MV ;

REN, SF ;

CHANG, YC ;

LUO, H ;

SAMARTH, N ;

FURDYNA, JK .

PHYSICAL REVIEW B, 1994, 49 (11) :7262-7270

[8]

KLINGSHIM CF, 1995, SEMICONDUCTOR OPTICS, P63

[9]

Klude M, 2002, PHYS STATUS SOLIDI B, V229, P935, DOI 10.1002/1521-3951(200201)229:2<935::AID-PSSB935>3.0.CO

[10]

2-3

← 1 2 →