Red-light-emitting diodes fabricated by near-ultraviolet InGaN chips with molybdate phosphors

被引:90
作者
Wang, Zhengliang [1 ]
Liang, Hongbin [1 ]
Wang, Jing [1 ]
Gong, Menglian [1 ]
Su, Qiang [1 ]
机构
[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Minist Educ Key Lab Bioinorgan & Synth Chem, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
SINGLE-CRYSTALS; LUMINESCENCE; SPECTRA;
D O I
10.1063/1.2335579
中图分类号
O59 [应用物理学];
学科分类号
摘要
Phosphors Na5La(MoO4)(4):xEu(3+) and NaEu(MoO4)(2) were prepared with a solid-state reaction technique. Their photoluminescent properties were investigated at room temperature. Bright red-light-emitting diodes were fabricated by coating the phosphors onto near-ultraviolet/violet-emitting InGaN chips, respectively. The diodes prepared with phosphor Na5Eu(MoO4)(4) show appropriate CIE chromaticity coordinates (x=0.65,y=0.34) and exhibit more intensive red emission than that prepared with NaEu(MoO4)(2), indicating that Na5Eu(MoO4)(4) may be applied as an excellent red component for near-ultraviolet InGaN-based white diodes.(c) 2006 American Institute of Physics.
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页数:3
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