The effects of Li on the near-infrared luminescence properties of Nd/ Li codoped Y2O3 nanocrystals |
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| Authors: | Ting Fan Zhonghong Jiang |
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| Institution: | MOE Key Laboratory of Special Functional Materials and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, People's Republic of China |
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| Abstract: | Nd3+/ Li+ codoped Y2O3 nanocrystals were synthesized by glycine combustion method. The codoping of Li+ ions can lead to about twice enhancement of the near-infrared luminescence for the three spectral regions, which correspond to the 4F3/2 → 4I9/2, 4F3/2 → 4I11/2 and 4F3/2 → 4I13/2 channels of Nd3+. The enhancement could be attributed to the improved morphology, the modification of the local symmetry around Nd3+ ions and the reducing number of OH− groups by codoping with Li+ ions. |
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