Cooperative up-conversion luminescence of ytterbium doped yttrium lanthanum oxide transparent ceramic |
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| Authors: | CG Dou XM Hu |
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| Institution: | a School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
b Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | The up-conversion luminescence of Yb3+-doped yttrium lanthanum oxide transparent ceramic was investigated. It was ascribed to cooperative luminescence originated from the coupled states of the Yb3+ ion pairs. The proper doping of La2O3 can remove the cooperative luminescence of Yb3+ ion. But excessive La2O3 (at least 10 at.%) the cooperative up-conversion of Yb3+:Y2O3 is obtained again, and the intensity of up-conversion luminescence strengthens with the increase of La2O3 content. |
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| Keywords: | 42 70 Hj 42 55 Xi |
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