Preparation, patterning and luminescent properties of nanocrystalline Gd2O3 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via Pechini sol-gel soft lithography

	Preparation, patterning and luminescent properties of nanocrystalline Gd2O3 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via Pechini sol-gel soft lithography
	Pang ML ; Lin J ; Fu J ; Xing RB ; Luo CX ; Han YC
刊名	optical materials
	2003
卷号	23 期号:3-4 页码:547-558
关键词	EMISSION DISPLAY APPLICATIONS THIN-FILMS OPTICAL-PROPERTIES ENERGY-TRANSFER RARE-EARTH DEPOSITION CATHODOLUMINESCENCE FABRICATION
ISSN号	0925-3467
通讯作者	lin j
中文摘要	nanocrystalline gd2o3:a (a = eu3+, dy3+, sm3+, er3+) phosphor films and their patterning were fabricated by a pechini sol-gel process combined with a soft lithography. x-ray diffraction (xrd), atomic force microscopy (afm), scanning electron microscopy (sem) and optical microscopy, uv/vis transmission and photoluminescence (pl) spectra as well as lifetimes were used to characterize the resulting films. the results of xrd indicated that the films began to crystallize at 500 degreesc and that the crystallinity increased with the elevation of annealing temperatures. uniform and crack free non-patterned phosphor films were obtained by optimizing the composition of the coating sol, which mainly consisted of grains with an average size of 70 nm and a thickness of 550 nm. using micro-molding in capillaries technique, we obtained homogeneous and defects-free patterned gel and crystalline phosphor films with different stripe widths (5, 10, 20 and 50 mum). significant shrinkage (50%) was observed in the patterned films during the heat treatment process. the doped rare earth ions (a) showed their characteristic emission in crystalline gd2o3 phosphor films due to an efficient energy transfer from gd2o3 host to them. both the lifetimes and pl intensity of the rare earth ions increased with increasing the annealing temperature from 500 to 900 degreesc, and the optimum concentrations for eu3+, dy3+, sm(3+), er3+ were determined to be 5, 0.25, 1 and 1.5 mol% of gd3+ in gd2o3 films, respectively.
收录类别	SCI
语种	英语
WOS记录号	WOS:000184368500006
公开日期	2010-09-13
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/17329]
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	Pang ML,Lin J,Fu J,et al. Preparation, patterning and luminescent properties of nanocrystalline Gd2O3 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via Pechini sol-gel soft lithography[J]. optical materials,2003,23(3-4):547-558.
APA	Pang ML,Lin J,Fu J,Xing RB,Luo CX,&Han YC.(2003).Preparation, patterning and luminescent properties of nanocrystalline Gd2O3 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via Pechini sol-gel soft lithography.optical materials,23(3-4),547-558.
MLA	Pang ML,et al."Preparation, patterning and luminescent properties of nanocrystalline Gd2O3 : A (A = Eu3+, Dy3+, Sm3+, Er3+) phosphor films via Pechini sol-gel soft lithography".optical materials 23.3-4(2003):547-558.