KGd(MoO4)2:Eu3+ as a promising red phosphor for light-emitting diode application
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- 作者：Linghong Yi ; Liya Zhou ; Zhengliang Wang ; Jianhua Sun ; Fuzhong Gong ; Weiping Wan ; Wei Wang
- 关键词：Optical materials ; X-ray methods ; Luminescence
- 刊名：Current Applied Physics
- 出版年：2010
- 出版时间：January 2010
- 年：2010
- 卷：10
- 期：1
- 页码：208-213
- 全文大小：398 K
文摘
A red phosphor KGd(MoO4)2:Eu3+ was prepared by solid-state reaction technique at high temperature. Its photoluminescent property was investigated and the optimum concentration of Eu3+ doped in the KGd(MoO4)2 is 25 mol % . Compared with Y2O2S:0.05Eu3+, the obtained KGd(MoO4)2:Eu3+ shows wider excitation band around 400 nm, higher intensity of Eu3+ 5D0–7F2 emission upon excitation 393 nm, and the CIE chromaticity coordinates (x = 0.655, y = 0.345) are closer to the standard of National Television Standard Committee (NTSC). The optical properties of KGd(MoO4)2:Eu3+ suggest that it is an efficient red-emitting phosphor for light-emitting diode applications.