J4 ›› 2011, Vol. 28 ›› Issue (5): 551-557.

• 激光技术与器件 • 上一篇    下一篇

Nd:GdNbO4的制备,结构与发光

谭晓靓1,2, 蒋庆辉3, 张庆礼1, 宁凯杰1,2, 周文龙1,2, 殷绍唐1   

  1. 1中国科学院安徽光学精密机械研究所安徽光学精密机械研究所, 安徽 合肥 230031;
    2 中国科学院研究生院,北京 100049 ;
    3 云南铝业股份有限公司, 云南 昆明 650502
  • 出版日期:2011-09-28 发布日期:2011-08-18
  • 通讯作者: 张庆礼(1973—),云南会泽人,博士生导师,主要从事晶体生长、结构、发光物理等研究。 E-mail:zql@ustc.edu.cn
  • 作者简介:谭晓靓(1984—)浙江宁波人,研究生,主要从事光学材料的研究。Email:watertxl@mail.ustc.edu.cn
  • 基金资助:

    国家自然科学基金 (50772112, 50872135, 90922003)、安徽省优秀青年基金(08040106820)、中国科学院重要方向性项目 (YYYJ-1002)资助

Preparation, structure and luminescence of Nd:GdNbO4

TAN Xiao-liang1,2, JIANG Qing-hui3, ZHANG Qing-li1, NING Kai-jie1,2, ZHOU Wen-long1,2, YIN Shao-tang1   

  1. 1 Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
    2 Graduate University of Chinese Academy of Sciences, Beijing  100049, China;
    3 Aluminium Corporation of Yunnan, Kunming 650502, China
  • Published:2011-09-28 Online:2011-08-18

摘要:

用高温固相法合成了Nd3+:GdNbO4多晶,确定了它的结构,研究了它的光致发光。Nd3+:GdNbO4是单斜结构,空间群为I2。采用内标法,测定了(1at%)Nd:GdNbO4的晶格参数.用Rietveld精修给出了Nd3+:GdNbO4的原子坐标。在808nm光激发下,观察到925nm、1065nm、1345nm三个发射带,分别来自于Nd3+的4F3/2→4I9/2、4I11/2、4I13/2跃迁,以1065nm处的发射谱带强度最强。分析表明Nd3+在GdNbO4有很强的晶场作用,是一种潜在的新型激光材料。

关键词: 材料, 结构, X射线衍射, 发光

Abstract:

The polycrystalline Nd3+:GdNbO4 was synthesized by high temperature solid-state reaction method, its structure was determined and its luminescence was studied. Nd3+:GdNbO4 is monoclinic with the space group I 2/a. The lattice parameters of (1at%)Nd:GdNbO4 was determined by an internal standard method. The atom coordinates of Nd3+:GdNbO4 were obtained by Rietveld refinement with the result. It has three emission band of 925nm, 1065nm, and 1345nm under 808nm light excitation, which are from the transitions 4F3/2→4I9/2, 4F3/2→4I11/2, 4F3/2→4I13/2 of Nd3+ ion, respectively. The strongest emission peaks at 1065nm from the transition 4F3/2→4I11/2 of Nd3+. The study indicates that Nd3+ in GdNbO4 feels strong crystal field interaction, and it is a potential laser material.

Key words: material, structure, X-ray diffraction, luminescence

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