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Effect of oxygen vacancies on the fluorescence and phosphorescence properties of Ca5MgSi3O12:Eu2+, Dy3+

Gong Yu Chen Bai-Hua Xiong Liang-Ping Gu Mei Xiong Jie Gao Xiao-Ling Luo Yang-Ming Hu Sheng Wang Yu-Hua

Effect of oxygen vacancies on the fluorescence and phosphorescence properties of Ca5MgSi3O12:Eu2+, Dy3+

Gong Yu, Chen Bai-Hua, Xiong Liang-Ping, Gu Mei, Xiong Jie, Gao Xiao-Ling, Luo Yang-Ming, Hu Sheng, Wang Yu-Hua
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  • Received Date:  08 January 2013
  • Accepted Date:  24 April 2013
  • Published Online:  05 August 2013

Effect of oxygen vacancies on the fluorescence and phosphorescence properties of Ca5MgSi3O12:Eu2+, Dy3+

  • 1. Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China;
  • 2. Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
Fund Project:  Project supported by the Science and Technology Funds of China Academy of Engineering Physics (Grant No. 2013B0301037).

Abstract: Ca5MgSi3O12:Eu2+, Dy3+ was synthesized by solid-state reaction. The luminescence center related to the oxygen vacancies existed in the host matrix. Comparing the fluorescence and phosphorescence properties of samples synthesized under different air condiction, we find that the oxygen vacancies played an important role in the fluorescence and phosphorescence properties. Oxygen vacancies can transfer its energy to the luminescence center. Thermoluminescence spectra were used to characterize the effect of oxygen vacancies on the phosphorescence properties. Ca5MgSi3O12:Eu2+,Dy3+ has a great potential to become a promising candidate to be used as long-lasting phosphors.

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