The dependence of persistent phosphorescence on annealing temperatures in CaTiO3 : Pr3+ nanoparticles prepared by a coprecipitation technique

	The dependence of persistent phosphorescence on annealing temperatures in CaTiO3 : Pr3+ nanoparticles prepared by a coprecipitation technique
其他题名	论文其他题名
	Zhang X. M.; Zhang H. H.; Ren X. G.; Wang X. J.
	2008
发表期刊	Journal of Solid State Chemistry
ISSN	0022-4596
卷号	181 期号:3 页码:393-398
摘要	Red emitting phosphors of CaTiO3:Pr3+ nanoparticles with size ranging from 6 to 95 nm have been prepared by a coprecipitation technique and structurally characterized by X-ray diffraction, energy dispersive spectroscopy and scanning electron microscopy. The fluorescence and phosphorescence of CaTiO3:Pr3+ nanoparticles as a function of annealing temperature are investigated. It is found that fluorescence intensities monotonously increase with increasing temperature. However, a maximum in phosphorescence with the increase of annealing temperature occurs for the sample prepared at 700 degrees C. Based on the measurement of fluorescence emission, fluorescence excitation and reflectance spectra as well as time decay patterns of fluorescence and phosphorescence, it is demonstrated that the dependence of fluorescence and phosphorescence on annealing temperature originates from the decrease of surface defects with the increase of temperature. (C) 2007 Elsevier Inc. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/26426
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang X. M.,Zhang H. H.,Ren X. G.,et al. The dependence of persistent phosphorescence on annealing temperatures in CaTiO3 : Pr3+ nanoparticles prepared by a coprecipitation technique[J]. Journal of Solid State Chemistry,2008,181(3):393-398.
APA	Zhang X. M.,Zhang H. H.,Ren X. G.,&Wang X. J..(2008).The dependence of persistent phosphorescence on annealing temperatures in CaTiO3 : Pr3+ nanoparticles prepared by a coprecipitation technique.Journal of Solid State Chemistry,181(3),393-398.
MLA	Zhang X. M.,et al."The dependence of persistent phosphorescence on annealing temperatures in CaTiO3 : Pr3+ nanoparticles prepared by a coprecipitation technique".Journal of Solid State Chemistry 181.3(2008):393-398.

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