Photoluminescence from ZnS1-xTex alloys under hydrostatic pressure

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	Photoluminescence from ZnS1-xTex alloys under hydrostatic pressure
	Fang ZL ; Li GH ; Liu NZ ; Zhu ZM ; Han HX ; Ding K ; Ge WK ; Sou IK
刊名	physical review b
	2002
卷号	66 期号:8 页码:art.no.085203
关键词	ZNS-TE ABSORPTION-EDGE MIXED-CRYSTALS ZINC-SULFIDE THIN-FILMS TRANSITION EXCITONS CENTERS STRAINS BAND
ISSN号	1098-0121
通讯作者	fang zl,chinese acad sci,inst semicond,natl lab superlattices & microstruct,pob 912,beijing 100083,peoples r china.
中文摘要	zns1-xtex (0.02less than or equal toxless than or equal to0.3) alloys are studied by photoluminescence under hydrostatic pressure at room temperature. only a wide emission band is observed for each sample. its peak energy is much lower than the corresponding band gap of alloys. these bands are ascribed to the radiative annihilation of excitons bound at te-n(ngreater than or equal to2) isoelectronic centers. the pressure coefficients of the emission bands are smaller than those of alloy band gaps from 48% to 7%. the difference of the pressure coefficient of the emission band and the band gap increases when the binding energy of te-n centers decreases. it seems contrary to our expectation and needs further analysis. the integrated intensities of emission bands decrease with increasing pressure due to the decreasing of the absorption coefficient associated with the te-n centers under pressure. according to this model the stokes shifts between the emission and absorption bands of the te-n centers are calculated, which decrease with the increasing te composition in alloys.
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/172111/11794]
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	Fang ZL,Li GH,Liu NZ,et al. Photoluminescence from ZnS1-xTex alloys under hydrostatic pressure[J]. physical review b,2002,66(8):art.no.085203.
APA	Fang ZL.,Li GH.,Liu NZ.,Zhu ZM.,Han HX.,...&Sou IK.(2002).Photoluminescence from ZnS1-xTex alloys under hydrostatic pressure.physical review b,66(8),art.no.085203.
MLA	Fang ZL,et al."Photoluminescence from ZnS1-xTex alloys under hydrostatic pressure".physical review b 66.8(2002):art.no.085203.