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过程工程学报 ›› 2017, Vol. 17 ›› Issue (4): 839-844.DOI: 10.12034/j.issn.1009-606X.216354

• 材料工程 • 上一篇    下一篇

Ba1-x-1.5ySrxMoO4:ySm3+红色荧光粉的水热法合成及发光性能

李 慧梁亚琴毛晓明*   

  1. 长治学院化学系,山西 长治 046011
  • 收稿日期:2016-11-30 修回日期:2017-01-05 出版日期:2017-08-20 发布日期:2017-08-16
  • 通讯作者: 毛晓明 maoxiaoming6609144@aliyun.com
  • 基金资助:
    山西省青年科技研究基金项目

Hydrothermal Synthesis and Luminescent Properties of Ba1-x-1.5ySrxMoO4:ySm3+ Red Fluorescent Materials

Hui LI, Yaqin LIANG, Xiaoming MAO*   

  1. Department of Chemistry, Changzhi University, Changzhi, Shanxi 046011, China
  • Received:2016-11-30 Revised:2017-01-05 Online:2017-08-20 Published:2017-08-16

摘要: 采用水热法合成Ba1?x?1.5ySrxMoO4:ySm3+系列红色荧光材料,对其进行了表征,考察了Ba2+和Sr2+含量及Sm3+掺杂量、反应温度和pH值对材料相结构、荧光性能和微观形貌的影响. 结果表明,pH=7、反应温度130℃条件下合成的Ba0.843Sr0.15MoO4:0.005Sm3+具有最佳的发光性能和显微形貌,在波长405 nm的荧光激发下,粉体的发射光谱呈现三峰发射,分别位于564, 600, 648 nm,分别来自Sm3+的4G5/2→6H5/2, 4G5/2→6H7/2和4G5/2→6H9/2的电子跃迁,其中以4G5/2→6H9/2的跃迁发射强度最强.

关键词: Ba(1-x-1.5y)SrxMoO4:ySm3+, 水热法, 红色荧光粉

Abstract: A series of Ba1?x?1.5ySrxMoO4:ySm3+ red fluorescent materials were synthesized by hydrothermal method and its properties were characterized. The influences of Ba2+ and Sr2+ contents, Sm3+ doping content, reaction temperature and pH value on phase structure, fluorescence properties and micromorphology were studied, respectively. The results showed that the sample of Ba0.843Sr0.15MoO4:0.005Sm3+ has better luminous performance and micromorphology at pH=7 and reaction temperature 130℃. Under 405 nm excitation, the emission spectra of phosphors is composed of three broad bands peaked at 564, 600 and 648 nm, which are resulted from the transition of 4G5/2→6H5/2, 4G5/2→6H7/2, 4G5/2→6H9/2, and the relative intensity of 4G5/2→6H9/2 is more intensive.

Key words: Ba (1-x-1.5y) SrxMoO4:ySm3+, Hydrothermal method, red fluorescent materials