Different transfer paths for thermally activated electrons and holes in self-organized Ge/Si(001) islands in a multilayer structure

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	Different transfer paths for thermally activated electrons and holes in self-organized Ge/Si(001) islands in a multilayer structure
	Huang CJ ; Tang Y ; Li DZ ; Cheng BW ; Luo LP ; Yu JZ ; Wang QM
刊名	applied physics letters
	2001
卷号	78 期号:14 页码:2006-2008
关键词	STRANSKI-KRASTANOV GROWTH SI/SI1-XGEX QUANTUM-WELLS II BAND ALIGNMENT PHOTOLUMINESCENCE GE EXCITONS GAP SI
ISSN号	0003-6951
通讯作者	huang cj,chinese acad sci,inst semicond,state key lab integrated optoelect,beijing 100083,peoples r china. 电子邮箱地址: cjhuang@red.semi.ac.cn
中文摘要	we investigated the temperature dependence (10-250 k) of the photoluminescence (pl) emission spectrum of self-organized ge/si(001) islands in a multilayer structure. with elevated temperature, we find that the thermally activated holes and electrons are gathered by the ge islands in different ways. the holes drift from the wetting layer into the islands, while the electrons, confined in si due to type-ii band alignment, leak into the ge islands by the electrostatic interaction with the holes accumulated there. it results in an increase of the integrated intensity of island-related pl at a certain temperature range and a reduction of the phonon energy in the phonon-assisted pl of the islands by involving a type-i transition into a type-ii transition. (c) 2001 american institute of physics.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-08-12
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/12248]
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	Huang CJ,Tang Y,Li DZ,et al. Different transfer paths for thermally activated electrons and holes in self-organized Ge/Si(001) islands in a multilayer structure[J]. applied physics letters,2001,78(14):2006-2008.
APA	Huang CJ.,Tang Y.,Li DZ.,Cheng BW.,Luo LP.,...&Wang QM.(2001).Different transfer paths for thermally activated electrons and holes in self-organized Ge/Si(001) islands in a multilayer structure.applied physics letters,78(14),2006-2008.
MLA	Huang CJ,et al."Different transfer paths for thermally activated electrons and holes in self-organized Ge/Si(001) islands in a multilayer structure".applied physics letters 78.14(2001):2006-2008.