Synthesis and Luminescent Properties of GdNbO4:RE3+ (RE = Tm, Dy) Nanocrystalline Phosphors via the Sol-Gel Process

	Synthesis and Luminescent Properties of GdNbO4:RE3+ (RE = Tm, Dy) Nanocrystalline Phosphors via the Sol-Gel Process
	Lu Y ; Tang XH ; Yan LS ; Li KX ; Liu XM ; Shang MM ; Li CX ; Lin J
刊名	journal of physical chemistry c
	2013
卷号	117 期号:42 页码:21972-21980
关键词	FIELD-EMISSION DISPLAYS LIGHT-EMITTING-DIODES HOST-SENSITIZED LUMINESCENCE RARE-EARTH PHOTOLUMINESCENCE PROPERTIES ENERGY-TRANSFER BLUE TB3+ EXCITATION EFFICIENT
ISSN号	1932-7447
通讯作者	liu xm
中文摘要	nanocrystalline gdnbo4:tm3+ and gdnbo4:dy3+ phosphors were prepared through a pechini-type sol gel process. x-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, photoluminescence, and cathodoluminescence (cl) spectra were utilized to characterize the synthesized phosphors. xrd reveals that the samples begin to crystallize at 900 degrees c and the pure gdnbo4 phase can be obtained at 1000 degrees c. fe-sem images indicate that the gdnbo4:tm3+ and gdnbo4:dy3+ samples consist of fine and spherical grains with a size around 30-50 nm. under the excitation of uv light (264 nm) and low-voltage electron beams (1-3 kv), the gdnbo4:tm3+ and gdnbo4:dy3+ phosphors showed the characteristic emissions of tm3+ (d-1(2) -> h-3(6), h-3(5), h-3(4), and (1)g(4) -> h-3(6) transitions) and dy3+ (f-4(9/2) -> h-6(15/2) and f-4(9/2) -> h-6(13/2) transitions), respectively. the blue cl of the gdnbo4:tm3+ phosphor has higher color purity and comparable intensity to the y2sio5:ce3+ commercial product. a single-composition white light emitting in response to near uv and low-voltage electron beam excitation has been realized in gdnbo4:dy3+ phosphor. the obtained gdnbo4:tm3+ and gdnbo4:dy3+ phosphors have potential applications in the areas of near uv white-light-emitting diodes and field emission display devices.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000326260000043
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49529]
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	Lu Y,Tang XH,Yan LS,et al. Synthesis and Luminescent Properties of GdNbO4:RE3+ (RE = Tm, Dy) Nanocrystalline Phosphors via the Sol-Gel Process[J]. journal of physical chemistry c,2013,117(42):21972-21980.
APA	Lu Y.,Tang XH.,Yan LS.,Li KX.,Liu XM.,...&Lin J.(2013).Synthesis and Luminescent Properties of GdNbO4:RE3+ (RE = Tm, Dy) Nanocrystalline Phosphors via the Sol-Gel Process.journal of physical chemistry c,117(42),21972-21980.
MLA	Lu Y,et al."Synthesis and Luminescent Properties of GdNbO4:RE3+ (RE = Tm, Dy) Nanocrystalline Phosphors via the Sol-Gel Process".journal of physical chemistry c 117.42(2013):21972-21980.