Exciton localization and temperature stability in self-organized InAs quantum dots

被引：278

作者：

Lubyshev, DI ^{[1
]}

GonzalezBorrero, PP ^{[1
]}

Marega, E ^{[1
]}

Petitprez, E ^{[1
]}

LaScala, N ^{[1
]}

Basmaji, P ^{[1
]}

机构：

[1] UNIV SAO PAULO, INST FIS SAO CARLOS, BR-13960970 SAO CARLOS, SP, BRAZIL

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 02期

关键词：

D O I：

10.1063/1.116461

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the temperature effect on exciton localization in self-organized InAs quantum dots. Quenching energy for excitons in reference quantum well and quantum dots was found to be 2 and 7 meV, respectively. Thermoactivation energy of electron-hole emission through a GaAs barrier in the quantum dots was measured as 46 meV. We observed an unusual decrease of photoluminescence peak full width at half maximum with temperature, suggesting suppression of nonpredominant size quantum dot emissions due to carrier tunneling between nearby dots. (C) 1996 American Institute of Physics.

引用

页码：205 / 207

页数：3

共 12 条

[1] EXCITONS IN QUANTUM BOXES - CORRELATION-EFFECTS AND QUANTUM CONFINEMENT [J].

BRYANT, GW .

PHYSICAL REVIEW B, 1988, 37 (15) :8763-8772

[2]

CHANG LL, 1991, NATO ASI SERIES B, V227

[3] O-DIMENSIONAL-INDUCED OPTICAL-PROPERTIES IN SELF-ASSEMBLED QUANTUM DOTS [J].

FAFARD, S ;

LEON, R ;

LEONARD, D ;

MERZ, JL ;

PETROFF, PM .

SUPERLATTICES AND MICROSTRUCTURES, 1994, 16 (03) :303-309

[4] ULTRANARROW LUMINESCENCE LINES FROM SINGLE QUANTUM DOTS [J].

GRUNDMANN, M ;

CHRISTEN, J ;

LEDENTSOV, NN ;

BOHRER, J ;

BIMBERG, D ;

RUVIMOV, SS ;

WERNER, P ;

RICHTER, U ;

GOSELE, U ;

HEYDENREICH, J ;

USTINOV, VM ;

EGOROV, AY ;

ZHUKOV, AE ;

KOPEV, PS ;

ALFEROV, ZI .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4043-4046

[5] CRITICAL LAYER THICKNESS FOR SELF-ASSEMBLED INAS ISLANDS ON GAAS [J].

LEONARD, D ;

POND, K ;

PETROFF, PM .

PHYSICAL REVIEW B, 1994, 50 (16) :11687-11692

[6] STRUCTURAL AND OPTICAL-PROPERTIES OF SELF-ASSEMBLED INGAAS QUANTUM DOTS [J].

LEONARD, D ;

FAFARD, S ;

POND, K ;

ZHANG, YH ;

MERZ, JL ;

PETROFF, PM .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1994, 12 (04) :2516-2520

[7] PHOTOLUMINESCENCE OF SINGLE INAS QUANTUM DOTS OBTAINED BY SELF-ORGANIZED GROWTH ON GAAS [J].

MARZIN, JY ;

GERARD, JM ;

IZRAEL, A ;

BARRIER, D ;

BASTARD, G .

PHYSICAL REVIEW LETTERS, 1994, 73 (05) :716-719

[8]

SOLOMON GS, 1995, 15TH P MBE C COLL PA

[9]

Stranski I. N., 1939, AKAD WISS LIT MAI MN, V146, P797

[10] DIAMAGNETIC SHIFT AND OSCILLATOR STRENGTH OF 2-DIMENSIONAL EXCITONS UNDER A MAGNETIC-FIELD IN IN0.53GA0.47AS/INP QUANTUM-WELLS [J].

SUGAWARA, M ;

OKAZAKI, N ;

FUJII, T ;

YAMAZAKI, S .

PHYSICAL REVIEW B, 1993, 48 (12) :8848-8856

← 1 2 →