Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (1): 63-69.DOI: 10.11944/j.issn.1000-0518.2016.01.150169

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Luminescence Properties of Eu2+-activated CaO-MgO-SiO2 Long-lasting Phosphorescence Glasses

WANG Hongjiea,MA Tengfeia,ZHANG Sub*(),FENG Jingb,PANG Ranb,JIANG Lihongb,LI Chengyub*()   

  1. aSchool of Materials Science and Engineering,Jilin Jianzhu University,Changchun,China 130118
    bState Key Laboratory of Rare Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2015-05-14 Accepted:2015-10-08 Published:2016-01-05 Online:2016-01-05
  • Contact: ZHANG Su,LI Chengyu
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.51102229, No.51402288, No.21401184), Program of Science and Technology Development Plan of Jilin Province(No.20140201007GX), the Education Department of Jilin Province “1025” Science and Technology Research Project(2014, 226th)

Abstract:

In this article, a new Eu2+ ion activated silicate glass was prepared. The glass composition is 2CaO-MgO-3SiO2-0.015Eu2O3(CMSE). The transmitted spectrum, steady-state photoluminescence(PL) spectrum, long-lasting phosphorescence(LLP) and thermal glow were performed to investigate the luminescent properties of the CMSE sample. It was found that the CMSE sample can be excited by ultraviolet(UV) and near UV light to give yellow PL emission and LLP. The emission origins from the d-f transition of Eu2+. The results of thermal glow curve indicate that the LLP is originated from the trap level with depth of 0.83 eV in the forbidden band of glass host. This study is beneficial for finding other rare earth ions activated luminescent glasses for white light LEDs.

Key words: Eu2+, long-lasting phosphorescence, glasses, luminescence