Near-ultraviolet excitable orange-yellow Sr3(Al2O5)Cl2:Eu2+ phosphor for potential application in light-emitting diodes

被引:107
作者
Tang, Yu-Sheng [2 ]
Hu, Shu-Fen [1 ]
Ke, Wei-Chih [3 ]
Lin, Chun Che [3 ]
Bagkar, Nitin C. [3 ]
Liu, Ru-Shi [3 ]
机构
[1] Natl Taiwan Normal Univ, Dept Phys, Taipei 116, Taiwan
[2] Natl Taiwan Normal Univ, Inst Electroopt Sci & Technol, Taipei 116, Taiwan
[3] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan
关键词
D O I
10.1063/1.2996278
中图分类号
O59 [应用物理学];
学科分类号
摘要
Sr-3(Al2O5)Cl-2 phosphor doped with Eu2+ was prepared by a soli-state reaction. This phosphor emits a broad orange-yellow luminescence with a peak wavelength of 620 nm and a full width at half maximum of about 175 nm under near-ultraviolet (NUV) excitation at similar to 400 nm. Yellow light-emitting diodes (LEDs) for general lighting were fabricated by combining Sr-3(Al2O5)Cl-2:Eu2+ hosphor with an NUV chip. The phosphor-converted LEDs had a color temperature of about 2300 K and their color rendering index was 74. (C) 2008 American Institute of Physics.
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页数:3
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