KGd(MoO4)2:Eu as a promising red phosphor for light-emitting diode application |
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| Authors: | Linghong Yi Liya Zhou Zhengliang Wang Jianhua Sun Fuzhong Gong Weiping Wan Wei Wang |
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| Institution: | aSchool of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China;bSchool of Chemistry and Biotechnology, Yunnan Nationalities University, Kunming, Yunnan 650031, China |
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| Abstract: | 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. |
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| Keywords: | Optical materials X-ray methods Luminescence |
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