Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs

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	Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs
	Zhu, L.; Guo, X. Y.; Sun, X. H.; Sai, Q. L.; Di, J. Q.
刊名	Optik
	2017
卷号	144 页码:86
通讯作者	dijuqing@mail.siom.ac.cn
英文摘要	The synthesis, X-ray diffraction (XRD) pattern, excitation spectrum, emission spectra and decay times were studied for the first time to our best knowledge. The Dy:Y3Ga5O12 (Dy:YGG) phosphors with Dy3+ ions concentration of 0.5%, 1%,3%, 5% and 10% were prepared by sol-gel method. The XRD patterns show that the phosphors possess perfect YGG phase. The average particle size of the Dy:YGG phosphors was calculated to be about 40 nm. The strongest excitation peak was 353 nm, which is favorable to ultra violet (UV) induced white light-emitting diodes (LEDs). Three emission bands centered at 480 nm, 580 nm and 672 nm could be observed under excitation of 353 nm. The yellow-to-blue integrated intensity ratios (Y/B) were 1.4-1.7 for the Dy3+ ions concentrations from 0.5 to 5%. The optimum Dy3+ concentration is 3%, and the corresponding 1931 Commission International de I'Eclairage (CIE) coordinates is (x=0.37, y = 0.38). The results show that Dy:YGG phosphors can be a good candidate for UV-excitation warm-yellowish-white LEDs. (C) 2017 Published by Elsevier GmbH.
收录类别	SCI
资助信息	China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project
WOS记录号	WOS:000409150900013
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28776]
专题	上海光学精密机械研究所_其他
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Zhu, L.,Guo, X. Y.,Sun, X. H.,et al. Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs[J]. Optik,2017,144:86.
APA	Zhu, L.,Guo, X. Y.,Sun, X. H.,Sai, Q. L.,&Di, J. Q..(2017).Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs.Optik,144,86.
MLA	Zhu, L.,et al."Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs".Optik 144(2017):86.