Acta Photonica Sinica ›› 2018, Vol. 47 ›› Issue (6): 616003-0616003.doi: 10.3788/gzxb20184706.0616003

• Materials • Previous Articles     Next Articles

Preparation and Luminescence Properties of Metal Ions Li+, Na+ and Al3+ Co-doped BaF2:Eu3+ Phosphors

YE Ying1,2, WANG Lin-xiang1,2, TUO Juan1,2, ZHAO Hai-qin1,2   

  1. 1. College of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China;
    2. Key Laboratory of Novel Luminescent Materials and Nanostructures, Xinjiang Normal University, Urumqi 830054, China
  • Received:2017-12-29 Online:2018-06-25 Published:2018-02-28
  • Contact: 2018-02-28
  • Supported by:

    Xinjiang Uygur Autonomous Region Natural Science Foundation (No. 2017D01A60) and Xinjiang Uygur Autonomous Region Graduate Research and Innovation Project (No. XJGRI2017102)

Abstract:

The metal ions Li+, Na+ and Al3+ co-doped BaF2:Eu3+ phosphors were synthesized by the high temperature solid state reaction. The microstructure, morphologies and luminescent properties were characterized by X-ray diffraction, scanning electron microscopy, photoluminescence spectroscopy and fluorescence decay curves, respectively. The experimental results show that the emission intensity at 611 nm of Li+, Na+, Al3+ doped with 9% doping concentration is increased by 4.71 times, 1.51 times and 1.35 times respectively at 266 nm excitation, compared with the single doped 23% Eu3+ sample. After the incorporation of Li+ or Al3+, the lifetime of 5D0 level of Eu3+ becomes longer, and the incorporation of Na+ shortens the energy level life of Eu3+. Compared with BaF2:23%Eu3+ sample, the luminescence intensities of 9% Li+, 6%Na+, 23%Eu3+ co-doped BaF2 sample and 9% Li+, 12% Al3+, 23%Eu3+ co-doped BaF2 sample increased by 1.73 times and 3.05 times respectively, and the corresponding energy level life was increased.

Key words: BaF2:Eu3+ phosphor, Luminescent properties, Metal ions doping, Fluorescence lifetime

CLC Number: