| Tb3+掺杂复合材料LaF3-SiO2的制备和发光性能研究 |
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| 引用本文： | 王晓娴,王喜贵,李晶晶,张娟.Tb3+掺杂复合材料LaF3-SiO2的制备和发光性能研究[J].稀土,2012,33(1):6-10. |
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| 作者姓名： | 王晓娴 王喜贵 李晶晶 张娟 |
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| 作者单位： | 内蒙古师范大学 化学与环境科学学院 功能材料物理与化学自治区重点实验室,内蒙古呼和浩特,010022 |
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| 基金项目： | 国家自然科学基金，内蒙古自治区自然科学基金，内蒙古师范大学科研创新基金 |
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| 摘 要： | 采用溶胶-凝胶法在室温条件下制备了掺杂Tb3+的复合材料LaF3 -SiO2,通过XRD、TG-DTA、IR、激发和发射光谱研究了材料的结构和发光性能.结构表测试表明,在高于494℃时LaF3-SiO2:Tb3+转变为稳定的氟铈矿六方结构,800℃退火处理后,材料主要存在Si-O-Si键；发光性能研究表明,最佳退火温度为800℃；样品在544nm监测波长下,最佳激发波长为228nm,Tb3+的最佳掺杂摩尔浓度为0.48％.
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| 关 键 词： | Tb3+ 复合材料LaF3-SiO2 发光性质 溶胶-凝胶法 |
Preparation and Luminescence Properties of Tb3 + - doped Composite Materials LaF3 - SiO2 |
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| WANG Xiao-xian
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WANG Xi-gui
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LI Jing-jing
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ZHANG Juan.Preparation and Luminescence Properties of Tb3 + - doped Composite Materials LaF3 - SiO2[J].Chinese Rare Earths,2012,33(1):6-10. |
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| Authors: | WANG Xiao-xian WANG Xi-gui LI Jing-jing ZHANG Juan |
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| Affiliation: | (Key Laboratory for Physics and Chemistry of Functional Materials,College of Chemistry and Environment Science, Inner Mongolia Normal University,Hohhot 010022,China) |
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| Abstract: | Tb3+-doped composite materials LaF3-SiO2 were synthesized by sol-gel method at room temperature and characterized by XRD,TG-DTA,IR,excitation and emission spectrum.The result indicates that the samples change into a stable mineral structure of cerium fluoride when the temperature is above 494℃,and exist mainly in the form of Si-O-Si bond after annealing at 800℃;the optimum annealing temperature is 800℃,when the monitoring wavelength is 544nm,the best excitation wavelength is 228nm,in which the optimal doping molar concentration of Tb3+ is 0.48%. |
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| Keywords: | Tb3+ composite material LaF3-SiO2 luminescence properties sol-gel method |
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