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XIAO Zongliang, WANG Bingqi, XU Yusong, ZHOU Jiaxi, CUI Lijiang, YOU Weixiong. Synthesis of Yb3+ and Er+ doped Y2Ti2O7 phosphor and up-conversion luminescence mechanism[J]. Nonferrous Metals Science and Engineering, 2019, 10(6): 87-91. DOI: 10.13264/j.cnki.ysjskx.2019.06.014
Citation: XIAO Zongliang, WANG Bingqi, XU Yusong, ZHOU Jiaxi, CUI Lijiang, YOU Weixiong. Synthesis of Yb3+ and Er+ doped Y2Ti2O7 phosphor and up-conversion luminescence mechanism[J]. Nonferrous Metals Science and Engineering, 2019, 10(6): 87-91. DOI: 10.13264/j.cnki.ysjskx.2019.06.014
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Synthesis of Yb3+ and Er+ doped Y2Ti2O7 phosphor and up-conversion luminescence mechanism

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  • The (Y0.98-xYbxEr0.02)2Ti2O7 (x=0, 0.02, 0.04...0.10) phosphor powders were synthesized by the Sol-gel method. The crystal structure and upconversion emission luminescence properties were investigated by XRD and luminescence spectroscopy. The effects of Yb3+ concentration on the upconversion emission luminescence properties and the mechanism of upconversion emission were studied. The results showed that the structure of samples belonged to pyrochlore phase with FCC structure. Excited by 980nm, the samples exhibited strong upconversion emission luminescence and the color of emission luminescence can be tuned by the Yb3+ concentration. The upconversion green and red emission luminescences of samples were two-photo process. The cross-relaxation process was dominant for the upconversion red emission luminescence of samples.
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