An efficient blue-emitting phosphor LiCaPO4:Eu2+ for white LEDs

作者：Wan, Chuiming; Meng, Jianxin^*; Zhang, Fengjin; Deng, Xiaoling; Yang, Chuangtao

来源：Solid State Communications, 2010, 150(31-32): 1493-1495.

DOI：10.1016/j.ssc.2010.05.037

• LiCaPO4:Eu2+ Phosphor
• Luminescence
• White light-emitting diodes

A new blue-emitting phosphor LiCaPO4:Eu2+ was synthesized by solid state reaction at a relatively low temperature of 900 degrees C. It gives a single intense emission band centering at 470 nm, which corresponds to the 4f(6)5d(1) -> 4f(7) transition of Eu2+. The dependence of luminescence intensities on Eu2+ concentration was investigated. The phosphor, with a single excitation band extending from 250 to 400 nm, could be efficiently excited by near-ultraviolet light-emitting diodes and is believed to be a promising blue-emitting phosphor for white light-emitting diodes.

• 出版日期2010-8
• 单位暨南大学