Photoluminescence properties of surface-modified nanocrystalline ZnS : Mn

	Photoluminescence properties of surface-modified nanocrystalline ZnS : Mn
其他题名	论文其他题名
	Xie P. B.; Zhang W. P.; Yin M.; Chen H. T.; Zhang W. W.; Lou L. R.; Xia S. D.
	2000
发表期刊	Journal of Colloid and Interface Science
ISSN	0021-9797
卷号	229 期号:2 页码:534-539
摘要	DBS surface-modified nanocrystalline ZnS:Mn was prepared by a precipitation method. Photoluminescence spectra and decay curves were measured and compared to those of unmodified samples. For both kinds of samples, luminescence decay curves of 600 nm emission consist of two components with nanosecond (ns) and millisecond (ms) lifetimes. The nanosecond component is attributed to zinc vacancies luminescence, with peak located at 440 nm. While the millisecond component is attributed to Mn2+ luminescence and its decay time changes with Mn2+ concentration and surface modification. The surface-modified sample has a longer lifetime compared to unmodified samples. The photoaging of surface-modified samples is slow. Particle size effects on photoaging were also examined. For nanocrystalline ZnS:Mn photoaging is more noticeable than that of bulk material. After UV irradiation, photoluminescence intensity of the modified sample is several times larger than that of the unmodified sample, because the surface-active reagent decreases surface defects and depresses radiationless transitions. XPS yields direct evidence of the surface-modification effect on the surface structure. (C) 2000 Academic Press.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25280
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Xie P. B.,Zhang W. P.,Yin M.,et al. Photoluminescence properties of surface-modified nanocrystalline ZnS : Mn[J]. Journal of Colloid and Interface Science,2000,229(2):534-539.
APA	Xie P. B..,Zhang W. P..,Yin M..,Chen H. T..,Zhang W. W..,...&Xia S. D..(2000).Photoluminescence properties of surface-modified nanocrystalline ZnS : Mn.Journal of Colloid and Interface Science,229(2),534-539.
MLA	Xie P. B.,et al."Photoluminescence properties of surface-modified nanocrystalline ZnS : Mn".Journal of Colloid and Interface Science 229.2(2000):534-539.

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