Temperature dependence of far-infrared electroluminescence in parabolic quantum wells

被引：32

作者：

Ulrich, J ^{[1
]}

Zobl, R

Unterrainer, K

Strasser, G

Gornik, E

Maranowski, KD

Gossard, AC

机构：

[1] Vienna Tech Univ, Inst Festkorperelekt, A-1040 Vienna, Austria

[2] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 21期

关键词：

D O I：

10.1063/1.124091

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have measured the far-infrared emission from parabolically graded quantum wells driven by an in-plane electric field in the temperature range from 20 to 240 K. The peak emission corresponds to the intersubband plasmon in the parabolic potential. Its photon energy (6.6/9.8 meV) remains rather unaffected by temperature variations, the full-width at half-maximum ranges from 1 (T=20 K) to 2 meV (T=240 K). The reduction of emission efficiency with increasing temperature is attributed to the change in the nonradiative lifetime. (C) 1999 American Institute of Physics. [S0003-6951(99)05021-4].

引用

页码：3158 / 3160

页数：3

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