Energy structure and fluorescence of Eu2+ in ZnS : Eu nanoparticles

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	Energy structure and fluorescence of Eu2+ in ZnS : Eu nanoparticles
	Liu SM
刊名	physical review b
	2000
卷号	61 期号:16 页码:11021-11024
关键词	PHOTOLUMINESCENCE CRYSTALLITES
ISSN号	1098-0121
通讯作者	chen w,nomad inc,1730 cimarron plaza,pob 2496,stillwater,ok 74076 usa.
中文摘要	eu2+-doped zns nanoparticles with an average size of around 3 nm were prepared, and an emission band around 530 nm was observed. by heating in air at 150 degrees c, this emission decreased, while the typical sharp line emission of eu3+ increased. this suggests that the emission around 530 nm is from intraion transition of eu2+: in bulk zns:eu2+, no intraion transition of eu2+ was observed because the excited states of eu2+ are degenerate with the continuum of the zns conduction band. we show that the band gap in zns:eu2+ nanoparticles opens up due to quantum confinement, such that the conduction band of zns is higher than the first excited state of eu2+, thus enabling the intraion transition of eu2+ to occur.
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/172111/12618]
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	Liu SM. Energy structure and fluorescence of Eu2+ in ZnS : Eu nanoparticles[J]. physical review b,2000,61(16):11021-11024.
APA	Liu SM.(2000).Energy structure and fluorescence of Eu2+ in ZnS : Eu nanoparticles.physical review b,61(16),11021-11024.
MLA	Liu SM."Energy structure and fluorescence of Eu2+ in ZnS : Eu nanoparticles".physical review b 61.16(2000):11021-11024.