INVESTIGATION OF P-CDTE AND P-ZNXCD1-XTE SINGLE-CRYSTALS BY PS-LASER-INDUCED GRATINGS AND BY PHOTOLUMINESCENCE

被引：14

作者：

RUCKMANN, I ^{[1
]}

PETRAUSKAS, M ^{[1
]}

NETIKSIS, V ^{[1
]}

TAMULAITIS, G ^{[1
]}

HALFPAP, J ^{[1
]}

机构：

[1] V KAPSUKAS STATE UNIV,DEPT SEMICOND PHYS,VILNIUS 232054,LITHUANIA,USSR

来源：

PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 1987年 / 142卷 / 02期

关键词：

LASER BEAMS - Effects - PHOTOLUMINESCENCE - Measurements - SEMICONDUCTING ZINC COMPOUNDS - Measurements;

D O I：

10.1002/pssb.2221420233

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

From the measured erasure times of transient gratings created in the volume and on the surface of non-intentionally doped p-type CdTe and Zn//xCd//1// minus //xTe (x less than equivalent to 0. 11) single crystals the free-carrier lifetime and the surface recombination velocity at room temperature are determined, respectively. The erasure time of the surface grating in CdTe is found to be 130 ps, which is one order smaller than that of the volume grating. A lifetime shortening is observed in mixed cystal. Moreover, using CW-laser excitation the samples are characterized additionally by photoluminescence investigation at low temperatures to test the quality, to determine the mole fraction, and to identify impurities. The A**0X-line observed is interpreted as due to a single acceptor on Te site. In the mixed crystals at x greater than equivalent to 0. 09 the two-mode behavior of LO-phonons and an up to now not observed splitting of the A**0X-line are found.

引用

页码：629 / 640

页数：12

共 27 条

[11] NAKAMURA A, 1984, SOLID STATE COMMUN, V52, P538
[12] OSOLS AO, 1977, OPT SPEKTROSK+, V42, P168
[13] DONORS AND ACCEPTORS IN TELLURIUM COMPOUNDS - THE PROBLEM OF DOPING AND SELF-COMPENSATION
PAUTRAT, JL
FRANCOU, JM
MAGNEA, N
MOLVA, E
SAMINADAYAR, K
[J]. JOURNAL OF CRYSTAL GROWTH, 1985, 72 (1-2) : 194 - 204
[14] PETRAUSKAS M, 1983, THESIS VILNIUS STATE
[15] PLUCHIN AG, 1973, FIZ TVERD TELA, V15, P479
[16] TRANSIENT LIGHT-INDUCED GRATINGS DUE TO EXCITONS IN CDSE
RUCKMANN, I
JARASIUNAS, K
GAUBAS, E
[J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1985, 128 (02): : 627 - 641
[17] LASER-INDUCED PROBE-BEAM DEFOCUSING AT THE BAND EDGE OF CDSXSE1-X MIXED-CRYSTAL AT ROOM-TEMPERATURE
RUCKMANN, I
JARASIUNAS, K
CESNULEVICIUS, J
[J]. PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1986, 96 (02): : 603 - 610
[18] RUCKMANN I, 1984, P INT C EXCITONS 84, P190
[19] RUCKMANN I, 1986, 1ST P S LAS SPECTR P, P93
[20] SCHWENKENBECHER K, COMMUNICATION

← 1 2 3 →