SEMI OpenIR  > 中国科学院半导体研究所(2009年前)
Temperature and power-density-dependent inter-shell energy states in InAs/GaAs quantum dots
Wang FZ; Chen ZH; Sun J; Bai LH; Huang SH; Xiong H; Jin P; Wang ZG; Shen SC; Chen, ZH, Fudan Univ, Dept Phys, Surface Phys Lab, Shanghai 200433, Peoples R China. E-mail: zhanghai@fudan.edu.cn
2006
Source PublicationJOURNAL OF LUMINESCENCE
ISSN0022-2313
Volume119Issue:0Pages:183-187
AbstractWe have investigated the evolution of exciton state filling in InAs/GaAs quantum dot (QD) structures as a function of the excitation power density by using rnicro-photoluminescence spectroscopy at different temperatures. In addition to the emission bands of exciton recombination corresponding to the atom-like S, P and D, etc. shells of QDs, it was observed that some extra states V between the S and P shells, and D' between the P and D shells appear in the spectra with increasing number of excitons occupying the QDs at a certain temperature. The emergence of these inter-shell excitonic levels is power density and temperature dependent, which is an experimental demonstration of strong exciton-exciton exchange interaction, state hybridization, and coupling of a multi-exciton system in QDs. (c) 2006 Elsevier B.V. All rights reserved.
metadata_83fudan univ, dept phys, surface phys lab, shanghai 200433, peoples r china; chinese acad sci, inst semicond, key lab semicond mat sci, beijing 100083, peoples r china
KeywordQuantum Dots Exciton Photoluminescence
Subject Area半导体材料
Indexed BySCI
Language英语
Date Available2010-04-11
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/10702
Collection中国科学院半导体研究所(2009年前)
Corresponding AuthorChen, ZH, Fudan Univ, Dept Phys, Surface Phys Lab, Shanghai 200433, Peoples R China. E-mail: zhanghai@fudan.edu.cn
Recommended Citation
GB/T 7714
Wang FZ,Chen ZH,Sun J,et al. Temperature and power-density-dependent inter-shell energy states in InAs/GaAs quantum dots[J]. JOURNAL OF LUMINESCENCE,2006,119(0):183-187.
APA Wang FZ.,Chen ZH.,Sun J.,Bai LH.,Huang SH.,...&Chen, ZH, Fudan Univ, Dept Phys, Surface Phys Lab, Shanghai 200433, Peoples R China. E-mail: zhanghai@fudan.edu.cn.(2006).Temperature and power-density-dependent inter-shell energy states in InAs/GaAs quantum dots.JOURNAL OF LUMINESCENCE,119(0),183-187.
MLA Wang FZ,et al."Temperature and power-density-dependent inter-shell energy states in InAs/GaAs quantum dots".JOURNAL OF LUMINESCENCE 119.0(2006):183-187.
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