UV ray-induced thermoluminescence study of Y2SiO5:Ce3+ phosphor

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• 作者：Yogita Parganiha ; Jagjeet Kaur ; Vikas Dubey…
• 关键词：Thermoluminescence ; UV irradiation ; TL dosimeter ; Kinetic parameters ; CGCD
• 刊名：Research on Chemical Intermediates
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：42
• 期：3
• 页码：2267-2284
• 全文大小：1,382 KB
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• 作者单位：Yogita Parganiha (1)
  Jagjeet Kaur (1)
  Vikas Dubey (2)
  Deepika Chandrakar (1)
  N. S. Suryanarayana (1)
  
  1. Department of Physics, Govt. Vishwanath Yadav Tamaskar Post Graduate Autonomous College, Durg, 491001, C.G., India
  2. Department of Physics, Bhilai Institute of Technology, Kendri, Raipur, C.G., India
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Catalysis
  Physical Chemistry
  Inorganic Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1568-5675

文摘

This paper reports thermoluminescence (TL) properties of Ce3+ doped yttrium silicate phosphor. The phosphor is synthesized by a solid state reaction method which is suitable for large scale production. Starting materials used for sample preparation were Y₂O₃, SiO₂, CeO₂ and a fixed concentration of boric acid used as a flux. The prepared phosphors for different concentrations of Ce3+ were examined by observing their TL glow curves for UV irradiation (254-nm source). The samples show a well resolved broad peak covering a temperature range of 50–375 °C. The kinetic parameters such as activation energy, order of kinetics and frequency factor were calculated by the peak shape method. Most of the peaks show general order kinetics. The effect of UV exposure on TL was also examined and a linear response to dose was shown, indicating the sample may be useful for a TL dosimeter. The kinetic parameters were calculated using a computerized glow curve de-convolution (CGCD) technique.