吉林大学学报(理学版)

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水热法制备非稀土元素Mn掺杂的SrGe4O9红色荧光粉及其发光性能

利珊, 叶天南, 陆阳, 魏霄   

  1. 上海交通大学 化学化工学院, 上海 200240
  • 收稿日期:2013-11-23 出版日期:2014-09-26 发布日期:2014-09-26
  • 通讯作者: 魏霄 E-mail:weixiao@sjtu.edu.cn

Hydrothermal Synthesis and Luminescent Properties ofNon RareEarth Mn Doped SrGe4O9 Red Phosphor

LI Shan, YE Tiannan, LU Yang, WEI Xiao   

  1. School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China
  • Received:2013-11-23 Online:2014-09-26 Published:2014-09-26
  • Contact: WEI Xiao E-mail:weixiao@sjtu.edu.cn

摘要:

采用水热法合成Mn4+掺杂的SrGe4O9红色荧光粉, 利用X射线衍射仪(XRD)和荧光光谱仪(FS)表征荧光粉的晶体结构并分析其荧光性质, 利用电子顺磁共振谱(EPR)确定Mn的化学形态. 讨论掺杂不同摩尔分数Mn4+对样品发光强度的影响, 并比较水热法与固相法制备荧光粉的发光特性. 结果表明, SrGe4O9∶Mn4+在423 nm激发下发射656 nm红光, 对应于Mn4+的2E2→4A2跃迁.

关键词: 水热法, 红色荧光粉, SrGe4O9∶Mn4+, 光谱特性

Abstract:

A hydrothermal method was used to synthesize Mn4+ doped SrGe4O9 red phosphor. The crystal structure and luminescent properties of the SrGe4O9∶Mn4+ were characterized by XRD and FS. The SrGe4O9∶Mn4+ phosphor emits red emission at 656 nm due to the 2E24A2transition of Mn4+. The valence state of Mn was demonstrated by EPR. In addition, the influence of Mn4+ doping concentration on the luminescent properties of the phosphor was studied and the luminescent properties of the hydrothermally prepared SrGe4O9∶Mn4+ phosphor was compared with those of the control sample prepared from solid state reaction.

Key words: hydrothermal method, red phosphor, SrGe4O9∶Mn4+, spectral properties

中图分类号: 

  • O611.6