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Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (13): 1565-1569. Previous Articles     Next Articles

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Gd3＋掺杂对NaY(MoO4)2∶Eu3＋荧光粉发光性能影响的研究

刘伟1, 李西林1, 刘娟1, 韩厦1, 闫景辉*,1, 康振辉2, 连洪洲3   

  1. (1长春理工大学化学与环境工程学院 长春 130022)
    (2苏州大学功能纳米与软物质(材料)研究院 苏州 215123)
    (3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)
  • 投稿日期:2011-01-12 修回日期:2011-03-02 发布日期:2011-03-18
  • 通讯作者: 闫景辉 E-mail:yanjinghui8888@yahoo.com.cn
  • 基金资助:

    吉林省教育厅重大科技支撑项目

Influence of Gd3＋Doping on Properties of NaY(MoO4)2∶Eu3＋ Phosphors

Liu Wei1; Li Xilin1; Liu Juan1; Han Xia1; Yan Jinghui*,1; Kang Zhenhui2 ;Lian Hongzhou3   

  1. (1 School of Chemical and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022)
    (2 Institute of Functional Nano & Soft Materials, Soochow University, Suzhou 215123)
    (3 Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022)
  • Received:2011-01-12 Revised:2011-03-02 Published:2011-03-18

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Eu3＋-doped NaY(MoO4)2 and Na(Y, Gd)(MoO4)2 phosphors were prepared via microemulsionhydrothermal method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and fluorescence spectroscopy were used to characterize the samples. The XRD of as-prepared samples were in agreement with the PDF # 82-2369 of NaY(MoO4)2. SEM images showed that the as-prepared particles had a diameter size ranging from 0.5 to 0.8 μm. The critical activator molar concentration (Eu3＋) in NaY(MoO4)2∶Eu3＋was 4%, and the luminescent intensity of Na(Y, Gd)(MoO4)2∶4%Eu3＋was maximum when Y∶Gd molar ratio at 0.5∶0.5. Excited by 276, 395 and 465 nm, Na(Y0.48, Gd0.48)(MoO4)2∶4%Eu3＋exhibited pale pink, yellow and orange-red respectively. The sample of Na(Y, Gd)(MoO4)2∶Eu3＋could become a valuable luminescent material for white LED.

Key words: microemulsion-hydrothermal method, molybdates, WLED, fluorescence spectroscopy

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