Material transport in self-assembled InAs/GaAs quantum dot ensemble

SEMI OpenIR > 中国科学院半导体研究所（2009年前）

	Material transport in self-assembled InAs/GaAs quantum dot ensemble
	Wang ZM; Feng SL; Yang XP; Lu ZD; Xu ZY; Chen ZG; Zheng HZ; Wang FL; Gao M; Han PD; Duan XF; Wang ZM Chinese Acad Sci Inst Semicond Natl Lab Superlattices & Microstruct Beijing 100083 Peoples R China.
	1997
会议名称	10th International Conference on Superlattices, Microstructures and Microdevices
会议录名称	PHYSICS OF LOW-DIMENSIONAL STRUCTURES, 12
页码	205-211
会议日期	JUL 08-11, 1997
会议地点	LINCOLN, NEBRASKA
出版地	BOX 11, 105523 MOSCOW, RUSSIA
出版者	V S V CO. LTD
ISSN	0204-3467
部门归属	chinese acad sci, inst semicond, natl lab superlattices & microstruct, beijing 100083, peoples r china; chinese acad sci, electron microscopy lab, beijing 100083, peoples r china
摘要	Introducing the growth interruption between the InAs deposition and subsequent GaAs growth in self-assembled quantum dot (QD) structures, the material transport process in the InAs layers has been investigated by photoluminescence and transmission electron microscopy measurement. InAs material in structures without misfit dislocations transfers from the wetting layer to QDs corresponding to the red-shift of PL peak energy due to interruption. On the other hand, the PL peak shifts to higher energy in the structures with dislocations. In this case, the misfit dislocations would capture the InAs material from the surrounding wetting layer and coherent islands leading to the reduction of the size of these QDs. The variations in the PL intensity and Linewidth are also discussed.
关键词	Growth Transition Gaas
学科领域	半导体物理
主办者	Univv Nebraska, Coll Engn.; Ctr Mat Res & Anal.
收录类别	CPCI-S
语种	英语
文献类型	会议论文
条目标识符	http://ir.semi.ac.cn/handle/172111/15089
专题	中国科学院半导体研究所（2009年前）
通讯作者	Wang ZM Chinese Acad Sci Inst Semicond Natl Lab Superlattices & Microstruct Beijing 100083 Peoples R China.
推荐引用方式 GB/T 7714	Wang ZM,Feng SL,Yang XP,et al. Material transport in self-assembled InAs/GaAs quantum dot ensemble[C]. BOX 11, 105523 MOSCOW, RUSSIA:V S V CO. LTD,1997:205-211.

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