HIGH-TEMPERATURE EXCITONS AND ENHANCED ELECTROABSORPTION IN INGAAS/INALAS MULTIPLE QUANTUM WELLS

被引:20
作者
WAKITA, K
KAWAMURA, Y
YOSHIKUNI, Y
ASAHI, H
机构
[1] NTT, Electrical Communication Lab,, Atsugi, Jpn, NTT, Electrical Communication Lab, Atsugi, Jpn
关键词
SEMICONDUCTOR MATERIALS;
D O I
10.1049/el:19850406
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
Sharp heavy-hole and light-hole excitons are clearly observed in InGaAs/InAlAs multiple-quantum-well (MQW) structures at temperatures ranging from minus 190 degree C to 70 degree C. The halfwidth of the heavy-hole exciton line is as narrow as 6. 2 mev at room temperature. InGaAs/InAlAs MQWs are prepared in a PIN doped configuration by molecular beam epitaxy. An enhanced electroabsorption effect is also clearly observed in long-wavelength-region MQWs.
引用
收藏
页码:574 / 576
页数:3
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