INFLUENCES OF ALLOY DISORDER AND INTERFACE ROUGHNESS ON OPTICAL-SPECTRA OF INGAAS/GAAS STRAINED-LAYER QUANTUM-WELLS

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	INFLUENCES OF ALLOY DISORDER AND INTERFACE ROUGHNESS ON OPTICAL-SPECTRA OF INGAAS/GAAS STRAINED-LAYER QUANTUM-WELLS
	XU QA ; XU ZY ; ZHENG BZ ; XU JZ
刊名	chinese physics
	1991
卷号	11 期号:2 页码:458-465
关键词	EPITAXIAL MULTILAYERS DEFECTS SUPERLATTICES DISLOCATIONS DEPENDENCE THICKNESS
ISSN号	0273-429x
通讯作者	xu qa acad sinicanatl lab superlattices & related microstructbeijing 100083peoples r china
中文摘要	we present studies of alloy composition and layer thickness dependences of excitonic linewidths in ingaas/gaas strained-layer quantum wells grown by mbe, using both photoluminescence and optical absorption. it is observed that linewidths of exciton spectra increase with indium content and well size. using the virtual crystal approximation, the experimental data are analyzed. the results obtained show that the alloy disorder is the dominant mechanism for line broadening at low temperature. in addition, it is found that the absorption spectra related to light hole transitions have varied from a peak to a step-like structure as temperature increases. this behavior can be understood by the indirect space transitions of light holes.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-11-15
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/14305]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	XU QA,XU ZY,ZHENG BZ,et al. INFLUENCES OF ALLOY DISORDER AND INTERFACE ROUGHNESS ON OPTICAL-SPECTRA OF INGAAS/GAAS STRAINED-LAYER QUANTUM-WELLS[J]. chinese physics,1991,11(2):458-465.
APA	XU QA,XU ZY,ZHENG BZ,&XU JZ.(1991).INFLUENCES OF ALLOY DISORDER AND INTERFACE ROUGHNESS ON OPTICAL-SPECTRA OF INGAAS/GAAS STRAINED-LAYER QUANTUM-WELLS.chinese physics,11(2),458-465.
MLA	XU QA,et al."INFLUENCES OF ALLOY DISORDER AND INTERFACE ROUGHNESS ON OPTICAL-SPECTRA OF INGAAS/GAAS STRAINED-LAYER QUANTUM-WELLS".chinese physics 11.2(1991):458-465.