Electronic structure and optical properties of quantum rods with wurtzite structure

CORC > 半导体研究所 > 中国科学院半导体研究所 > 中国科学院半导体研究所（2009年前）

	Electronic structure and optical properties of quantum rods with wurtzite structure
	Li XZ ; Xia JB
刊名	physical review b
	2002
卷号	66 期号:11 页码:art.no.115316
关键词	SEMICONDUCTOR NANOCRYSTALS DOTS EMISSION SPHERES
ISSN号	1098-0121
通讯作者	li xz,china ctr adv sci & technol,world lab,pob 8730,beijing 100080,peoples r china.
中文摘要	the hamiltonian of the wurtzite quantum rods with an ellipsoidal boundary is given after a coordinate transformation. the energies, wave functions, and transition possibilities are obtained as functions of the aspect ratio e with the same method we used on spherical dots. with an overall consideration of both the transition matrix element and the boltzmann distribution we explained why the polarization factor increases with increasing e and approaches a saturation value, which tallies quite well with the experimental result. when e increases more and more s-z states are mixed into the ground, second, and third states of j(z)=1/2, resulting in an increase of the emission of z polarization. it is just the linear terms of the momentum operator in the hole hamiltonian that cause the mixing of s and p states in the hole ground state. the effects of the crystal field splitting energy, temperature, and transverse radius to the polarization are also considered. we also calculated the band gap variation with the size and shape of the quantum rods.
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/172111/11774]
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. Electronic structure and optical properties of quantum rods with wurtzite structure[J]. physical review b,2002,66(11):art.no.115316.
APA	Li XZ,&Xia JB.(2002).Electronic structure and optical properties of quantum rods with wurtzite structure.physical review b,66(11),art.no.115316.
MLA	Li XZ,et al."Electronic structure and optical properties of quantum rods with wurtzite structure".physical review b 66.11(2002):art.no.115316.