Fluorescence Quantum Efficiency Enhancement in CaWO4:Eu3+,Na+ Nanocrystals by Tridoping with F- Ions |
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| Authors: | ZHANG Si-Niana b HUANG Jian-Huaa CHEN Yu-Jina GONG Xing-Honga LIN Yan-Fua LUO Zun-Dua HUANG Yi-Dong |
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| Institution: | a② a (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China) b (Graduate University of Chinese Academy of Sciences, Beijing 100039, China) |
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| Abstract: | We demonstrated that tridoping with F- ions is an effective way to improve the fluorescence quantum efficiency of CaWO4:Eu3+,Na+ nanocrystals. F--tridoped samples with different F- concentrations were synthesized by a hydrothermal process. The fluorescence spectra and decay curves were measured at room temperature. The fluorescence intensity of F--tridoped samples is about 3 times that for the non F--doped sample. The fluorescence quantum efficiency can be enhanced by 21% when the atomic ratio of F to W was 0.7. |
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| Keywords: | F--tridoped CaWO4:Eu3+ Na+ nanocrystal fluorescence property |
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