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	Thermal quenching of luminescence from buried and surface ingaas self-assembled quantum dots with high sheet density
	Wei, ZF; Xu, SJ; Duan, RF; Li, Q; Wang, J; Zeng, YP; Liu, HC
刊名	Journal of applied physics
	2005-10-15
卷号	98期号:8页码:4
ISSN号	0021-8979
DOI	10.1063/1.2112176
通讯作者	Xu, sj()
英文摘要	Variable-temperature photoluminescence (pl) spectra of si-doped self-assembled ingaas quantum dots (qds) with and without gaas cap layers were measured. narrow and strong emission peak at 1075 nm and broad and weak peak at 1310 nm were observed for the buried and surface qds at low temperature, respectively. as large as 210 mev redshift of the pl peak of the surface qds with respect to that of the buried qds is mainly due to the change of the strain around qds before and after growth of the gaas cap layer. using the developed localized-state luminescence model, we quantitatively calculate the temperature dependence of pl peaks and integrated intensities of the two samples. the results reveal that there exists a large difference in microscopic mechanisms of pl thermal quenching between two samples. (c) 2005 american institute of physics.
WOS关键词	LOCALIZED EXCITONS ; OPTICAL-PROPERTIES ; TEMPERATURE-DEPENDENCE ; PHOTOLUMINESCENCE ; ACTIVATION
WOS研究方向	Physics
WOS类目	Physics, Applied
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000232937500065
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2426495
专题	半导体研究所
通讯作者	Xu, SJ
作者单位	1.Univ Hong Kong, Dept Phys, CAS, Joint Lab New Mat, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China 3.Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada
推荐引用方式 GB/T 7714	Wei, ZF,Xu, SJ,Duan, RF,et al. Thermal quenching of luminescence from buried and surface ingaas self-assembled quantum dots with high sheet density[J]. Journal of applied physics,2005,98(8):4.
APA	Wei, ZF.,Xu, SJ.,Duan, RF.,Li, Q.,Wang, J.,...&Liu, HC.(2005).Thermal quenching of luminescence from buried and surface ingaas self-assembled quantum dots with high sheet density.Journal of applied physics,98(8),4.
MLA	Wei, ZF,et al."Thermal quenching of luminescence from buried and surface ingaas self-assembled quantum dots with high sheet density".Journal of applied physics 98.8(2005):4.

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