Preparation and luminescent properties of cubic Eu3+ : Y2O3 nanocrystals and comparison to bulk Eu3+ : Y2O3

	Preparation and luminescent properties of cubic Eu3+ : Y2O3 nanocrystals and comparison to bulk Eu3+ : Y2O3
	Fu ZL ; Zhou SH ; Pan TQ ; Zhang SY
刊名	journal of luminescence
	2007
卷号	124 期号:2 页码:213-216
关键词	QUANTUM DOTS BAND COVALENCY Y2O3-EU OXIDES EU3
ISSN号	0022-2313
通讯作者	zhang sy
中文摘要	y2o3:eu3+ nanocrystals were prepared by combustion synthesis. the particle size estimated by x-ray powder diffraction (xrd) was about 10 nm. a blue-shift of the charge-transfer (ct) band in excitation spectra was observed in y2o3:eu3+ nanocrystals compared with bulk y2o3:eu3+. the electronic structure of y2o3 is calculated by density functional method and exchange and correlation have been treated by the generalized gradient approximation (gga) within the scheme due to perdew-burke-ernzerhof (pbe). the calculated results show that the energy centroid of 5d orbital in nanocrystal has increasing trend compared with that in the bulk material. the bond length and bond covalency are calculated by chemical bond theory. the bond lengths of y2o3:eu3+ nanocrystal are shorter than those of the bulk counterpart and the bond covalency of y2o3:eu3+ nanocrystal also has an increasing trend. by combining centroid shift and crystal-field splitting, the blue-shift of the ct band is interpreted.
收录类别	SCI
语种	英语
WOS记录号	WOS:000243674400005
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13893]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Fu ZL,Zhou SH,Pan TQ,et al. Preparation and luminescent properties of cubic Eu3+ : Y2O3 nanocrystals and comparison to bulk Eu3+ : Y2O3[J]. journal of luminescence,2007,124(2):213-216.
APA	Fu ZL,Zhou SH,Pan TQ,&Zhang SY.(2007).Preparation and luminescent properties of cubic Eu3+ : Y2O3 nanocrystals and comparison to bulk Eu3+ : Y2O3.journal of luminescence,124(2),213-216.
MLA	Fu ZL,et al."Preparation and luminescent properties of cubic Eu3+ : Y2O3 nanocrystals and comparison to bulk Eu3+ : Y2O3".journal of luminescence 124.2(2007):213-216.