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Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs
Di, J. Q.; Sai, Q. L.; Sun, X. H.; Guo, X. Y.; Zhu, L.; dijuqing@mail.siom.ac.cn
2017
Source PublicationOptik
Volume144Pages:86
AbstractThe 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.
SubtypeArticle
DOI10.1016/j.ijleo.2017.06.085
Funding OrganizationChina Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project ; China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project ; China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project ; China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project
Indexed BySCI
Funding OrganizationChina Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project ; China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project ; China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project ; China Postdoctoral Science Foundation [2016M592466]; Natural Science Foundation of Shanghai [15ZR1444700]; Guangdong Yang Fan Project
WOS IDWOS:000409150900013
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Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/28776
Collection其他
Corresponding Authordijuqing@mail.siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Di, J. Q.,Sai, Q. L.,Sun, X. H.,et al. Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs[J]. Optik,2017,144:86.
APA Di, J. Q.,Sai, Q. L.,Sun, X. H.,Guo, X. Y.,Zhu, L.,&dijuqing@mail.siom.ac.cn.(2017).Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs.Optik,144,86.
MLA Di, J. Q.,et al."Synthesis and luminescent behavior of Dy:Y3Ga5O12 phosphor for UV induced white LEDs".Optik 144(2017):86.
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