Investigation of up-conversion luminescence properties of RE/Yb co-doped Y2O3 transparent ceramic (RE=Er, Ho, Pr, and Tm) |
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| Authors: | Xiaorui Hou Shengming Zhou Tingting Jia Hui LinHao Teng |
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| Affiliation: | a Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, China
b Graduate School of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | RE/Yb co-doped Y2O3 transparent ceramics (RE=Er, Ho, Pr, Tm) were fabricated and characterized from the point of up-conversion luminescence. All the samples exhibit high transparence not only in near-infrared band (NIR) band but also in visible region, which ensures the output of the up-conversion luminescence. Under 980 nm excitation, green and red emissions were observed in Er, Yb:Y2O3 transparent ceramic, while green emission was detected in Ho, Yb and Pr, Yb co-doped Y2O3 transparent ceramics. In Tm, Yb co-doped Y2O3 ceramic, very intense blue up-conversion luminescence was detected. The dependence of up-conversion emission intensity on the pumping power was measured for each RE/Yb co-doped Y2O3 transparent ceramic, and the up-conversion mechanism was discussed in detail. Meanwhile, the energy transfer efficiency was calculated. |
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| Keywords: | Y2O3 Transparent ceramic Up-conversion luminescence |
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