High efficient and low color-temperature white light-emitting diodes with Tb3Al5O12:Ce3+ phosphor

被引:90
作者
Chen, Yibo
Gong, Menglian [1 ]
Wang, Gang
Su, Qiang
机构
[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China
[2] Sun Yat Sen Univ, China Key Lab Bioinorgan & Synth Chem, Minist Educ, Guangzhou 510275, Peoples R China
[3] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China
关键词
D O I
10.1063/1.2771538
中图分类号
O59 [应用物理学];
学科分类号
摘要
High efficient Tb3Al5O12:Ce3+ (TAG:Ce3+) phosphors were prepared in a solid-state reaction method with various fluxes. The results show that addition of proper flux can decrease the phase-forming temperature of the TAG crystals and improve the morphology as well as enhance the photoluminescence of the phosphors greatly. High efficient and low color-temperature white light-emitting diodes (WLEDs) were fabricated with the TAG:Ce3+ phosphor. Good performances of the WLEDs indicate that a mixture of H3BO3 and LiF is an excellent flux for synthesis of TAG:0.04Ce(3+) phosphor and is beneficial to the fabrication of high efficient WLEDs. (c) 2007 American Institute of Physics.
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页数:3
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