Luminescent properties of Mg3Ca3(PO4)4: Eu2+ blue-emitting phosphor for white light emitting diodes |
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| Authors: | Yinqun Li Degang Deng Qian Wang Gaofeng Li Youjie Hua Guohua Jia Lihui Huang Shilong Zhao Huanping Wang Chenxia Li Shiqing Xu |
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| Institution: | College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China |
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| Abstract: | A blue-emitting phosphor, Eu2+-activated Mg3Ca3(PO4)4 phosphor was synthesized by conventional solid-state reaction. X-ray powder diffraction (XRD) analysis confirmed the phase formation. Photoluminescence (PL) results showed that Mg3Ca3(PO4)4: Eu2+ could be efficiently excited by UV–visible light from 250 to 430 nm, which matched well with the emission wavelengths of near-UV and UV LED chips. The effects of the doped-Eu2+ concentration in Mg3Ca3(PO4)4: Eu2+ on the PL were also investigated. The result reveals that Mg3Ca3(PO4)4: Eu2+ is a potential blue-emitting phosphor for white LEDs. |
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