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KGd(MoO4)2:Eu3+ as a promising red phosphor for light-emitting diode application
Linghong Yi,Liya Zhou,Zhengliang Wang,Jianhua Sun,Fuzhong Gong,Weiping Wan,Wei Wang 한국물리학회 2010 Current Applied Physics Vol.10 No.1
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.