GENERATION RATE OF 2D EXCITONS IN QUANTUM-WELLS

被引：22

作者：

THILAGAM, A ^{[1
]}

SINGH, J ^{[1
]}

机构：

[1] NO TERR UNIV, FAC SCI, POB 40146, CASUARINA, NT 0811, AUSTRALIA

来源：

JOURNAL OF LUMINESCENCE | 1993年 / 55卷 / 01期

关键词：

D O I：

10.1016/0022-2313(93)90078-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The theory of generation of a heavy-hole exciton (2D exciton) from an electron hole pair in a semiconductor quantum well (QW) is presented. Energy is conserved by emission of an acoustic phonon in the final state. The transition rate is calculated using a quasi 2D exciton-phonon interaction operator. In GaAs AlxGa1-xAs quantum wells, the rate of generation is found to be 10 x 10(9)-1 x 10(9) s-1 for quantum well widths 25 to 200 angstrom, which agrees well with recent experimental results.

引用

页码：11 / 16

页数：6

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