Photoluminescence investigation of InAs bimodal self-assembled quantum dots state filling

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）

	Photoluminescence investigation of InAs bimodal self-assembled quantum dots state filling
	Jia, GZ ; Yao, JH ; Zhang, CL ; Shu, Q ; Liu, RB ; Ye, XL ; Wang, ZG
刊名	spectroscopy and spectral analysis
	2007
卷号	27 期号:11 页码:2178-2181
关键词	photoluminescence spectroscopy quantum dot bimodal distribution state-filling
ISSN号	1000-0593
通讯作者	yao, jh, nankai univ, teda appl phys sch, key lab photon mat & technol informat sci, key lab adv tech & fabricat weak light nonlinear, tianjin 300475, peoples r china. 电子邮箱地址: yaojh@nankai.edu.cn
中文摘要	self-assembled inas quantum dots were prepared on gaas(100)) substrate in a solid source molecular beam epitaxy system the distribution and topographic images of uncapped dots were studied by atomic force microscope. the statistical result shows that the quantum dots are bimodal distribution. the photoluminescence spectrum results shows that the intensity of small size quantum dots dominated, which may be due to: (1) the state density of large quantum dots lower than that of small quantum dots; (2) the carriers capture rate of large size quantum dots is small relative to that of small ones; (3) there is a large strain barrier between large quantum dots and capping layer, and the large strain is likely to produce the defect and dislocation, resulting in a probability carriers transferring from large quantum dots to small dots that is very small with temperature increasing.
学科主题	半导体材料
收录类别	SCI
语种	中文
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/6954]
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	Jia, GZ,Yao, JH,Zhang, CL,et al. Photoluminescence investigation of InAs bimodal self-assembled quantum dots state filling[J]. spectroscopy and spectral analysis,2007,27(11):2178-2181.
APA	Jia, GZ.,Yao, JH.,Zhang, CL.,Shu, Q.,Liu, RB.,...&Wang, ZG.(2007).Photoluminescence investigation of InAs bimodal self-assembled quantum dots state filling.spectroscopy and spectral analysis,27(11),2178-2181.
MLA	Jia, GZ,et al."Photoluminescence investigation of InAs bimodal self-assembled quantum dots state filling".spectroscopy and spectral analysis 27.11(2007):2178-2181.