A Double Substitution of Mg2+-Si4+/Ge4+ for Al-(1)(3+)-Al-(2)(3+) in Ce3+-Doped Garnet Phosphor for White LEDs

	A Double Substitution of Mg2+-Si4+/Ge4+ for Al-(1)(3+)-Al-(2)(3+) in Ce3+-Doped Garnet Phosphor for White LEDs
	Shang,Mengmeng ; Fan,Jian ; Lian,Hongzhou ; Zhang,Yang ; Geng,Dongling ; Lin,Jun
刊名	inorganic chemistry
	2014
卷号	53 期号:14 页码:7748-7755
关键词	LIGHT-EMITTING-DIODES LUMINESCENT PROPERTIES EMISSION PHOTOLUMINESCENCE CE3+ CONVERSION SPECTRA SR CA
通讯作者	lin,j
英文摘要	the influence of mg2+-si4+/ge4+ incorporation into ce3+-doped y3al5o12 garnet phosphors on the crystal structure and luminescence properties is described in this work. x-ray diffraction with rietveld refinements, photoluminescence spectra, absolute quantum yield, thermal quenching behavior, and lifetimes were utilized to characterize samples. the introduction of mg2+-si4+/ge4+ leads to an obvious red shift of emission wavelength under the excitation of blue light, especially for the series of mg2+-si4+ substitutions, which is suited for white light-emitting diodes (leds) with low color temperatures and good color rendering using only a single phosphor. more interestingly, an additional emission band locating at high-energy was observed with ultraviolet excitation, which is different than previous literature. under the excitation of ultraviolet, the emission color for the mg2+-si4+ substitutions can be tuned from yellow-green to blue, which is expected to obtain single-phased phosphors with white emission excited with uv-led chip. the usual ce3+ emission band at low energy has stronger quenching at high temperatures. the mechanisms for the observed phenomena are discussed.
收录类别	SCI
语种	英语
公开日期	2015-10-27
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/56205]
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	Shang,Mengmeng,Fan,Jian,Lian,Hongzhou,et al. A Double Substitution of Mg2+-Si4+/Ge4+ for Al-(1)(3+)-Al-(2)(3+) in Ce3+-Doped Garnet Phosphor for White LEDs[J]. inorganic chemistry,2014,53(14):7748-7755.
APA	Shang,Mengmeng,Fan,Jian,Lian,Hongzhou,Zhang,Yang,Geng,Dongling,&Lin,Jun.(2014).A Double Substitution of Mg2+-Si4+/Ge4+ for Al-(1)(3+)-Al-(2)(3+) in Ce3+-Doped Garnet Phosphor for White LEDs.inorganic chemistry,53(14),7748-7755.
MLA	Shang,Mengmeng,et al."A Double Substitution of Mg2+-Si4+/Ge4+ for Al-(1)(3+)-Al-(2)(3+) in Ce3+-Doped Garnet Phosphor for White LEDs".inorganic chemistry 53.14(2014):7748-7755.