FREE-EXCITON VERSUS FREE-CARRIER LUMINESCENCE IN A QUANTUM-WELL

被引：10

作者：

DEVEAUD, B

SERMAGE, B

KATZER, DS

机构：

[1] FRANCE TELECOM,CNET BAGNEUX,F-92220 BAGNEUX,FRANCE

[2] USN,RES LAB,WASHINGTON,DC 20375

来源：

JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C5期

关键词：

D O I：

10.1051/jp4:1993502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Radiative recombination of an exciton in a quantum well is highly probable due to the removal of the k selection rule in the z-direction. As a consequence, this radiation path dominates over the free carrier recombination which is difficult to observe. We succeed in obtaining separately the free carrier luminescence and the exciton luminescence and deduce an exciton formation time of the order of 200 ps, in agreement with theoretical expectations.

引用

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页码：11 / 14

页数：4

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