高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (12): 2448.doi: 10.7503/cjcu20190352

• 研究论文: 无机化学 • 上一篇    下一篇

YXO4(X=Nb,V)的结构与基质发光

王洪杰2,朱重阳1,2,张粟1,*(),庞然1,姜丽宏1,李达1,刘贯宇1,蔡吉泽1,冯婧1,李成宇1,*()   

  1. 1. 中国科学院长春应用化学研究所, 稀土资源利用国家重点实验室, 长春 130022
    2. 吉林建筑大学研究生学院, 长春 130118
  • 收稿日期:2019-06-24 出版日期:2019-12-04 发布日期:2019-12-04
  • 通讯作者: 张粟,李成宇 E-mail:zhangsu@ciac.ac.cn;cyli@ciac.ac.cn
  • 基金资助:
    国家重点研发计划项目(2016YFB0701003);中科院青年创新促进会项目资助.

Structure and Host Luminescence of YXO4(X=Nb, V)

Hongjie WANG2,Chongyang ZHU1,2,Su ZHANG1,*(),Ran PANG1,Lihong JIANG1,Da LI1,Guanyu LIU1,Jize CAI1,Jing FENG1,Chengyu LI1,*()   

  1. 1. State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
    2. Graduate School of Jilin University of Architecture, Changchun 130118, China
  • Received:2019-06-24 Online:2019-12-04 Published:2019-12-04
  • Contact: Su ZHANG,Chengyu LI E-mail:zhangsu@ciac.ac.cn;cyli@ciac.ac.cn
  • Supported by:
    ? Supported by the National Key Research and Development Program of China(2016YFB0701003);the Program of Youth Innovation Promotion Association, Chinese Academy of Sciences.

摘要:

采用高温固相法制备了一系列YNb1-xO4xV样品, 通过连续改变Nb和V的比例获得了具有不同结构的材料. 研究发现, V$O^{3-}_{4}$与Nb$O^{3-}_{4}$基团的发光分别位于约420和400 nm处, 但是YNbO4中掺杂少量的V 5+和YVO4中掺杂少量的Nb 5+对发光的影响明显不同. 通过连续改变V和Nb的比例, 其发光性质并不能连续从一种发光变为另一种发光, 而是在某一组成时达到最低. 对所制备材料的结构、 组成及发光变化进行了研究, 结果表明存在2种发光猝灭机理.

关键词: 钒酸钇, 褐钇铌, 基质发光, 四面体配位

Abstract:

A series of YNb1-xO4xV samples were synthesized by high temperature solid phase method. Different structures were obtained by continuously varying the concentrations of Nb and V. It was found that the luminescence of the V$O^{3-}_{4}$ group and the luminescence of the Nb$O^{3-}_{4}$ group are located at around 420 and 400 nm. However, the small amount of V 5+ doping in YNbO4 and the small amount of Nb 5+ doping in YVO4 have significantly different effects on their luminescent behaviors. By continuously varying the ratio of V and Nb, the luminescent properties do not continuously change from one characteristic luminescence to another, but reach the minimum emission intensity at a certain composition. In this paper, the changes in structure, composition and luminescence were studied. The results show that there are two luminescence quenching mechanisms.

Key words: Yttrium vanadate, Fergusonite, Host emission, Tetrahedral coordination

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