Effects of electric field on the electronic structure and optical properties of quantum rods with wurtzite structure

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	Effects of electric field on the electronic structure and optical properties of quantum rods with wurtzite structure
	Li XZ ; Xia JB
刊名	physical review b
	2003
卷号	68 期号:16 页码:art.no.165316
关键词	EXCITON-STATES DOTS EMISSION SPHERES
ISSN号	1098-0121
通讯作者	li xz,chinese ctr adv sci & technol,world lab,pob 8730,beijing 100080,peoples r china.
中文摘要	the hamiltonian of wurtzite quantum rods with an ellipsoidal boundary under electric field is given after a coordinate transformation. the electronic structure and optical properties are studied in the framework of the effective-mass envelope-function theory. the quantum-confined stark effect is illustrated by studying the change of the electronic structures under electric field. the transition probabilities between the electron and hole states decrease sharply with the increase of the electric field. the polarization factor increases with the increase of the electric field. effects of the electric field and the shape of the rods on the exciton effect are also investigated. the exciton binding energy decreases with the increase of both the electric field and the aspect ratio. in the end, considering the exciton binding energy, we calculated the band gap variation of size- and shape-controlled colloidal cdse quantum rods, which is in good agreement with experimental results.
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/172111/11390]
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	Li XZ,Xia JB. Effects of electric field on the electronic structure and optical properties of quantum rods with wurtzite structure[J]. physical review b,2003,68(16):art.no.165316.
APA	Li XZ,&Xia JB.(2003).Effects of electric field on the electronic structure and optical properties of quantum rods with wurtzite structure.physical review b,68(16),art.no.165316.
MLA	Li XZ,et al."Effects of electric field on the electronic structure and optical properties of quantum rods with wurtzite structure".physical review b 68.16(2003):art.no.165316.