Photocurrent spectroscopy of InGaAs/InAlAs multi-quantum well structures and estimated heavy effective-mass of electrons in InGaAs wells

被引：2
|
作者：
Tanaka, K [1 ]
Kotera, N [1 ]
机构：
[1] Kyushu Inst Technol, Dept Comp Sci & Elect, Iizuka, Fukuoka 820, Japan
来源：
MICROELECTRONIC ENGINEERING | 1998年 / 43-4卷
关键词：
multi-quantum well; eigen-energy; conduction-subband; nonparabolicity; photocurrent difference spectrum;
D O I：
10.1016/S0167-9317(98)00161-0
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We observed a series of peaks corresponding to interband optical transitions of the In0.53Ga0.47As/In0.52Al0.48As multi-quantum well clearly extracted from photocurrent spectra. Nonparabolic tendency of an electron effective mass was observed in a conduction-subband. Estimated mass normal to the quantum well plane was more than 50% heavier than the bulk bandedge mass of InGaAs. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：179 / 184
页数：6
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