Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Study of concentration dependence of luminescent properties for Eu3+ doped CaWO4 red phosphors

Meng Qing-Yu Zhang Qing Li Ming Liu Lin-Feng Qu Xiu-Rong Wan Wei-Long Sun Jiang-Ting

Study of concentration dependence of luminescent properties for Eu3+ doped CaWO4 red phosphors

Meng Qing-Yu, Zhang Qing, Li Ming, Liu Lin-Feng, Qu Xiu-Rong, Wan Wei-Long, Sun Jiang-Ting
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  2060
  • PDF Downloads:  1033
  • Cited By: 0
Publishing process
  • Received Date:  16 January 2012
  • Accepted Date:  28 May 2012
  • Published Online:  05 May 2012

Study of concentration dependence of luminescent properties for Eu3+ doped CaWO4 red phosphors

  • 1. Key Laboratory of Semiconductor Nanocomposite Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China
Fund Project:  Project supported by the Science and Technology Research Project of Education Bureau of Heilongjiang Province, China (Grant No. 12511139).

Abstract: Eu3+ doped CaWO4 phosphors of different concentrations are prepared by a co-precipitation method. The X-ray diffraction patterns and field emission scanning electron microscopy images are investigated. The excitation spectra, emission spectra and the curves of fluorescence decays of the samples are measured. The Judd-Ofelt (J-O) parameters, quantum efficiencies of the 5D0 level of Eu3+ and color coordinates are calculated. The dependences of relative intensity of charge transfer band, J-O parameter and quantum efficiency on doping concentration are discussed. The photoluminescence properties of Eu3+ doped CaWO4 luminescent material are studied. The results indicate that the 616 nm red emission of Eu3+5D07F2 transition can be effectively excited by 394.5 nm and 465 nm with high excitation efficiency and the concentration quenching is high. So the CaWO4: Eu red phosphor may have a potential application for white light emitting diode.

Reference (22)

Catalog

    /

    返回文章
    返回