铒镱双掺钇钪铝石榴石纳米粉体的制备与发光性质.PDFVIP

第 44卷第 6期 2 0 1 6 年 6 月 硅 酸 盐 学 报 Vol. 44，No. 6 June，2016 JOURNAL OF THE CHINESE CERAMIC SOCIETY DOI：10.14062/j.issn.0454-5648.2016.06.11 铒镱双掺钇钪铝石榴石纳米粉体的制备与发光性质 林 海 1，朱忠丽 2 (1. 长春理工大学材料科学与工程学院，长春 130022；2. 长春理工大学化学与环境工程学院，长春 130022) 摘 要：以柠檬酸为燃烧剂，采用柠檬酸燃烧法制备 Er,Yb:YSAG纳米粉体。通过对不同煅烧温度下样品的 X射线衍射和扫 描电子显微镜分析，确定最佳煅烧温度为 900 ℃。测试了室温条件下样品的激发和发射光谱。结果表明：在 381 nm 处激发 峰最强，对应 Er3+的 4I15/2→2H9/2能级跃迁；最强发射峰在 1 547 nm处，对应 Er3+的 4I13/2→4I15/2能级跃迁。测试了样品的上转 换荧光光谱，研究了 Er3+和 Yb3+掺杂量对样品发光强度的影响，得到了 Er3+和 Yb3+的最佳掺杂量分别为 3%和 9%，讨论了绿 光、红光的发光跃迁机制，验证样品发光为双光子过程。 关键词：柠檬酸燃烧法；激发发射光谱；上转换荧光光谱 中图分类号：TQ133.3 文献标志码：A 文章编号：0454–5648(2016)06–0849–06 网络出版时间： 网络出版地址： Preparation and Luminescence Property of Er,Yb:YSAG Nano-powder LIN Hai1, ZHU Zhongli2 (1. Changchun University of Science and Technology, School of Materials Science and Engineering, Changchun 130022, China; 2. Changchun University of Science and Technology, Chemistry and Environmental Engineering College, Changchun 130022, China) Abstract: Er,Yb:YSAG nano-powder was synthesized by a citrate combustion method. The Er,Yb:YSAG powder was characterized by X-ray diffraction and scanning electron microscopy. The results show that the optimum calcination temperature is 900 . The ℃ features of excitation and emission spectrum of Er,Yb:YSAG nano-material at room temperature were examined. It is indicated that a most intense excitation peak is centered at 381 nm, corresponding to the 4I15/2→2H9/2 level transition of Er3+. A most intense emission peak is centered at 1 547 nm, corresponding to the 4I13/2→4I15/2 level transition of Er3+. The up-conversion fluorescence spectrum was analyzed. The impact of doping content of Er3+ and Yb3+ in the samples on the luminous intensity was studied. The doping contents of Er3+ and Yb3+ are 3% and 9%, respectively. The green and red light transition mechanism was discussed. It is proposed that luminescence process shoul