Tunable and White-Light Emission from Single-Phase Ca2YF4PO4:Eu2+,Mn2+Phosphors for Application in W-LEDs

	Tunable and White-Light Emission from Single-Phase Ca2YF4PO4:Eu2+,Mn2+Phosphors for Application in W-LEDs
	Geng DL ; Shang MM ; Zhang Y ; Cheng ZY ; Lin J
刊名	european journal of inorganic chemistry
	2013
期号	16 页码:2947-2953
关键词	EMITTING-DIODES ENERGY-TRANSFER LUMINESCENT PROPERTIES UV-LEDS ENHANCED PHOTOLUMINESCENCE RED PHOSPHOR YELLOW TB3+ GENERATION YAGCE
ISSN号	1434-1948
通讯作者	lin j
中文摘要	novel phosphors, ca2yf4po4:eu2+,mn2+, have been prepared by high-temperature solid-state reactions. xrd and xps techniques were used to investigate the purity and composition of the as-prepared samples. the ca2yf4po4:eu2+,mn2+ phosphors exhibit broad excitation spectra ranging from 275420 nm and the emission spectra show a broad blue emission band centered at 455 nm and a yellow emission band centered at 570 nm, which originate from the eu2+ and mn2+ ions, respectively. energy transfer from the eu2+ to mn2+ ions in the ca2yf4po4 host matrix was observed and studied by luminescence spectrosccopy as well as the lifetime of the eu2+ ions. the emission color of the ca2yf4po4:eu2+,mn2+ samples can be adjusted from blue to yellow under excitation by uv radiation of 375 nm by adjusting the eu2+ and mn2+ concentrations, and white-light emission with chromaticity coordinates (0.327, 0.312) was obtained with the ca2yf4po4:0.015eu2+,0.015mn2+ sample. in addition, the temperature-dependent photoluminescence of the as-prepared phosphors has been investigated in detail. the results revealed that the ca2yf4po4 host has good thermal stability. the stable structure of the host and tunable luminescence suggest that ca2yf4po4:eu2+,mn2+ could be regarded as a good candidate for uv led-based white-light emitting diodes.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000319278800013
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49833]
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	Geng DL,Shang MM,Zhang Y,et al. Tunable and White-Light Emission from Single-Phase Ca2YF4PO4:Eu2+,Mn2+Phosphors for Application in W-LEDs[J]. european journal of inorganic chemistry,2013(16):2947-2953.
APA	Geng DL,Shang MM,Zhang Y,Cheng ZY,&Lin J.(2013).Tunable and White-Light Emission from Single-Phase Ca2YF4PO4:Eu2+,Mn2+Phosphors for Application in W-LEDs.european journal of inorganic chemistry(16),2947-2953.
MLA	Geng DL,et al."Tunable and White-Light Emission from Single-Phase Ca2YF4PO4:Eu2+,Mn2+Phosphors for Application in W-LEDs".european journal of inorganic chemistry .16(2013):2947-2953.