Fabrication, patterning, and optical properties of nanocrystalline YVO4 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via sol-gel soft lithography

	Fabrication, patterning, and optical properties of nanocrystalline YVO4 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via sol-gel soft lithography
	Yu M ; Lin J ; Wang Z ; Fu J ; Wang S ; Zhang HJ ; Han YC
刊名	chemistry of materials
	2002
卷号	14 期号:5 页码:2224-2231
关键词	ENERGY-TRANSFER THIN-FILMS LUMINESCENCE PHOTOLUMINESCENCE GREEN
ISSN号	0897-4756
通讯作者	lin j
中文摘要	nanocrystalline yvo4:a (a = eu3+, dy3+, sm3+, er3+) phosphor films and their patterning were fabricated by a pechini sol-gel process combined with soft lithography. x-ray diffraction (xrd), fourier transform infrared spectroscopy (ft-ir), thermogravimetric and differential thermal analysis (tg-dta), atomic force microscopy (afm) and optical microscopy, uv/vis transmission and absorption spectra, photoluminescence (pl) spectra, and lifetimes were used to characterize the resulting films. the results of xrd indicated that the films began to crystallize at 400 degreesc and the crystallinity increased with the increase of annealing temperatures. transparent nonpatterned phosphor films were uniform and crack-free, which mainly consisted of grains with an average size of 90 nm. patterned gel and crystalline phosphor film bands with different widths (5-60 mum) were obtained. significant shrinkage and a few defects were observed in the patterned films during the heat treatment process. the doped rare earth ions (a) showed their characteristic emission in crystalline yvo4 phosphor films because of an efficient energy transfer from vanadate groups to them. the sm3+ and er3+ ions also showed upconversion luminescence in a yvo4 film host. both the lifetimes and pl intensity of the rare earth ions increased with increasing annealing temperature from 400 to 800 degreesc, and the optimum concentration for eu3+ was determined to be 7 mol % and those for dy3+, sm3-, and er3+ were 2 mol % of y3- in yvo4 films, respectively.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000175790100045
公开日期	2010-11-03
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/18593]
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	Yu M,Lin J,Wang Z,et al. Fabrication, patterning, and optical properties of nanocrystalline YVO4 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via sol-gel soft lithography[J]. chemistry of materials,2002,14(5):2224-2231.
APA	Yu M.,Lin J.,Wang Z.,Fu J.,Wang S.,...&Han YC.(2002).Fabrication, patterning, and optical properties of nanocrystalline YVO4 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via sol-gel soft lithography.chemistry of materials,14(5),2224-2231.
MLA	Yu M,et al."Fabrication, patterning, and optical properties of nanocrystalline YVO4 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via sol-gel soft lithography".chemistry of materials 14.5(2002):2224-2231.