ISOTOPE EFFECT IN GE - A PHOTOLUMINESCENCE STUDY

被引：47

作者：

ETCHEGOIN, P

WEBER, J

CARDONA, M

HANSEN, WL

ITOH, K

HALLER, EE

机构：

[1] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,BERKELEY,CA 94720

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 83卷 / 11期

关键词：

D O I：

10.1016/0038-1098(92)90897-I

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Edge photoluminescence data (0.69-0.75 eV) at low temperatures (T=1.8 and 4.2 K) were obtained in three isotope enriched Ge crystals (MBAR=70.1, 73.9.5 and 75.62) and a natural one (MBAR=72.59). We observed the energy shifts of the bound exciton, phonon assisited electron-hole liquid and free exciton recombination luminescences as a function of the mean isotope mass. The results are in good agreement with both theoretical estimates using a rigid-ion pseudopotential and some existing experimental information.

引用

页码：843 / 848

页数：6

共 25 条

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Agekyan V. F., 1989, Soviet Physics - Solid State, V31, P2082

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