Structure and luminescence properties of TiO2 : Er3+ nanocrystals annealed at different temperatures

	Structure and luminescence properties of TiO2 : Er3+ nanocrystals annealed at different temperatures
其他题名	论文其他题名
	Zhang J.; Wang X.; Zheng W. T.; Kong X. G.; Sun Y. J.
	2007
发表期刊	Materials Letters
ISSN	0167-577X
卷号	61 期号:8—9 页码:1658-1661
摘要	Erbium doped TiO2 nanocrystals with the structures of anatase, pyrochlore Er2Ti2O7, and rutile, characterized by X-ray diffraction, have been obtained at different annealing temperatures from 300 degrees C to 900 degrees C. The nanocrystalline size for anatase TiO2 is reduced with increasing doped erbium concentration. Following ultraviolet 325 nm irradiation, the intensity of the green emission is the most intense for the TiO2:Er3+ nanocrystals with a structure of pyrochlore Er2Ti2O7, which evolves from the structure of anatase annealed at 800 degrees C. Moreover, following ultraviolet 325 nm and infrared 980 nm irradiation, the visible emission spectra for the nanocrystals annealed at 900 degrees C change drastically. Correspondingly, the structure of anatase disappears, while that of rutile becomes dominant, which indicates that phase transformation occurs. (c) 2006 Elsevier B.V. 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/181722/26620
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhang J.,Wang X.,Zheng W. T.,et al. Structure and luminescence properties of TiO2 : Er3+ nanocrystals annealed at different temperatures[J]. Materials Letters,2007,61(8—9):1658-1661.
APA	Zhang J.,Wang X.,Zheng W. T.,Kong X. G.,&Sun Y. J..(2007).Structure and luminescence properties of TiO2 : Er3+ nanocrystals annealed at different temperatures.Materials Letters,61(8—9),1658-1661.
MLA	Zhang J.,et al."Structure and luminescence properties of TiO2 : Er3+ nanocrystals annealed at different temperatures".Materials Letters 61.8—9(2007):1658-1661.

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