| YLuAG:Ce粉体的发光及闪烁特征: 制备方法及缺陷效应 |
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| 引用本文： | 张孔,刘茜,苏晓彬,钟红梅,石云,潘裕柏.YLuAG:Ce粉体的发光及闪烁特征: 制备方法及缺陷效应[J].物理化学学报,2011,27(8):2001-2008. |
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| 作者姓名： | 张孔 刘茜 苏晓彬 钟红梅 石云 潘裕柏 |
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| 作者单位： | 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
3. Key Laboratory of Transparent Opto-functional Inorganic Material, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China |
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| 基金项目： | supported by the National High Technology Research and Development Program of China (863) (2009AA03Z437)~~ |
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| 摘 要： | 采用硝酸盐热解法(NP)、碳酸氢铵共沉淀法(CP)以及柠檬酸盐燃烧法(CC)分别制备了YLuAG:Ce (Y0.600Lu2.364Al5O12:Ce0.036)荧光粉体. 通过傅里叶变换红外光谱(FTIR), X射线衍射(XRD), 透射电子显微镜(TEM), 光致发光(PL)及热释光(TL)等表征手段研究了不同方法制备粉体的反应结晶过程、晶粒形貌、激发发射光谱、闪烁性能等. 对比研究表明, 三种方法制备的YLuAG:Ce粉体其表面及体相缺陷数量及分布存在差异, 从而导致了发射光谱峰位的偏移和快慢衰减时间分量的比例变化. 粉体的热释光谱分析结果进一步显示: 不同粉体热释光谱的主发射峰峰位及强度明显不同, 从侧面说明了合成方法诱发了粉体内的缺陷, 而粉体内具有不同陷阱深度的缺陷数量及陷阱复合几率对材料发光性能有较大影响.
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| 关 键 词： | YLuAG:Ce荧光粉 合成 发光 衰减时间 缺陷 |
| 收稿时间： | 2011-03-21 |
| 修稿时间： | 2011-06-03 |
Effect of Defects on the Luminescence and Scintillation Property of YLuAG:Ce Phosphors Obtained by Different Synthetic Routes |
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| ZHANG Kong,LIU Qian,SU Xiao-Bin,ZHONG Hong-Mei,SHI Yun,PAN Yu-Bai.Effect of Defects on the Luminescence and Scintillation Property of YLuAG:Ce Phosphors Obtained by Different Synthetic Routes[J].Acta Physico-Chimica Sinica,2011,27(8):2001-2008. |
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| Authors: | ZHANG Kong LIU Qian SU Xiao-Bin ZHONG Hong-Mei SHI Yun PAN Yu-Bai |
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| Institution: | 1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China;
3. Key Laboratory of Transparent Opto-functional Inorganic Material, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China |
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| Abstract: | Optimized YLuAG:Ce(Y0.600Lu2.364Al5O12:Ce0.036) phosphors were synthesized by three methods:nitrate-pyrolysis(NP),co-precipitation(CP) with ammonium hydrogen carbonate,and citrate-combustion(CC).Differences in the reaction process,crystallization,morphologies,photoluminescence(PL),and scintillant performance of the three kinds of phosphors were revealed and are explained using Fourier transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),transmission electron microscopy(TEM),PL and thermoluminescence... |
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| Keywords: | YLuAG:Ce phosphor Synthesis Luminescence Decay time Defect |
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