Photoluminescence properties of a GaN0.015As0.985/GaAs single quantum well under short pulse excitation | |
Luo XD ; Xu ZY ; Ge WK ; Pan Z ; Li LH ; Lin YW | |
刊名 | applied physics letters |
2001 | |
卷号 | 79期号:7页码:958-960 |
关键词 | MOLECULAR-BEAM EPITAXY BAND-GAP ENERGY TEMPERATURE PHOTOLUMINESCENCE MECHANISM GANXAS1-X EMISSION NITROGEN ALLOYS SHIFT GANAS |
ISSN号 | 0003-6951 |
通讯作者 | luo xd,chinese acad sci,inst semicond,natl lab superlattices & microstruct,beijing 100083,peoples r china. |
中文摘要 | under short pulse laser excitation, we have observed an extra high-energy photoluminescence (pl) emission from ganas/gaas single quantum wells (qws). it dominates the pl spectra under high excitation and/or at high temperature. by measuring the pl dependence on both temperature and excitation power and by analyzing the time-resolved pl results, we have attributed the pl peak to the recombination of delocalized excitons in qws. furthermore, a competition process between localized and delocalized excitons is observed in the temperature-dependent pl spectra under the short pulse excitation. this competition is believed to be responsible for the temperature-induced s-shaped pl shift often observed in the disordered alloy semiconductor system under continuous-wave excitation. (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/172111/12124] |
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 | Luo XD,Xu ZY,Ge WK,et al. Photoluminescence properties of a GaN0.015As0.985/GaAs single quantum well under short pulse excitation[J]. applied physics letters,2001,79(7):958-960. |
APA | Luo XD,Xu ZY,Ge WK,Pan Z,Li LH,&Lin YW.(2001).Photoluminescence properties of a GaN0.015As0.985/GaAs single quantum well under short pulse excitation.applied physics letters,79(7),958-960. |
MLA | Luo XD,et al."Photoluminescence properties of a GaN0.015As0.985/GaAs single quantum well under short pulse excitation".applied physics letters 79.7(2001):958-960. |
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