Energy transfer relation of a novel Ce3+/Pr3+/Eu3+ co-doped Sr2.975-xLaxAIO4+xF1-x solid solution phosphor |
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引用本文: | 王延泽,马健,孙亮,李蕊,王达健.Energy transfer relation of a novel Ce3+/Pr3+/Eu3+ co-doped Sr2.975-xLaxAIO4+xF1-x solid solution phosphor[J].中国物理 B,2014(10):546-550. |
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作者姓名: | 王延泽 马健 孙亮 李蕊 王达健 |
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作者单位: | Institute of Materials Physics, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China |
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基金项目: | Project supported by the National Natural Science Foundation of China (Grant Nos. 21076161 and 50872091). |
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摘 要: | The photoluminescence properties and energy transfer of a new Ce3+/pr3+/Eu3+ co-doped solid-solution composi- tion of Sr2.975-xLaxAlO4+xF1-x (LSAF) phosphor are investigated. Upon doping Pr3+ into lattices of LSAF:Ce host, a shoulder emission peak is observed at about 620 nm, owing to the transition of 1D2 →3H4. Addition of Eu3+ to LSAF:Ce3+, Pr3+ phosphor results in a sharp emission peaked at 675 nm for the 5D0 →TF3 transition and an increase of the intensity of red emission for Pr3+ with increasing Eu3+ concentration. The pathways of energy transfer among Ce3+, Pr3+, and Eu3+ are proposed to be responsible for color addition of a red component to the primary yellow emission, enabling a potential adjustable color for blue excitable warm white.
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关 键 词: | 能量转移 荧光粉 共掺 固溶 铕 光致发光特性 发射强度 排放量 |
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