| Vacuum Ultraviolet Excited Photoluminescence Properties of Y2O2S：Eu^3＋,Bi^3＋ Phosphor |
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| 基金项目： | Supported by the Project of the Combination of Industry and Research by the Ministry of Education of China and Guang-dong Province, China(No.0712226100023) |
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| 摘 要： |
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| 关 键 词： | Y2O2S：Eu^3＋ Bi^3＋ 真空紫外线辐射 金星 光致发光 |
Vacuum Ultraviolet Excited Photoluminescence Properties of Y_2O_2S:Eu~(3+),Bi~(3+) Phosphor |
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| Authors: | WANG Zhi-long WANG Yu-hua ZHANG Jia-chi |
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| Affiliation: | Department of Materials Science; Lanzhou University, Lanzhou 730000, P. R. China |
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| Abstract: | As an Hg-free lamp using phosphor, the Bi3+ and Eu3+ co-doped Y2O2S phosphors were prepared and their luminescence properties under vacuum ultraviolet(VUV) excitation were investigated. The VUV photoluminescent intensity of Y2O2S:Eu3+ was weak, however, considerably stronger red emission at 626 nm with good color purity was observed in Y2O2S:Eu3+,Bi3+ systems. Investigation on the photoluminescence reveals that the strong VUV luminescence of Y2O2S:Eu3+,Bi3+ at 147 nm is mainly because the Bi3+ acts as a med... |
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| Keywords: | Y_2O_2S:Eu~(3+) Bi~(3+) Vacuum ultraviolet(VUV) Phosphor |
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