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    • Keywords

       

      SrS phosphors; ESR; photoluminescence; thermoluminescence.

    • Abstract

       

      SrS phosphors activated with Ce and Dy ions were prepared by solid-state diffusion method. Photoluminescent study was carried out on SrS : Ce, SrS : Dy and SrS : Dy, Ce. Thermoluminescence and electron spin resonance studies were also carried out on SrS : Dy phosphor. The thermoluminescence glow curve shows a peak at around 142°C. Irradiated SrS : Dy exhibits an ESR line due to a defect centre. Thermal annealing behaviour indicates that this centre correlates with the TL peak at 142°C. The centre is characterized by an isotropic g-value of 2.0039 and is assigned to a 𝐹+ centre.

    • Author Affiliations

       

      Vijay Singh1 Manoj Tiwari1 T K Gundu Rao2 S J Dhoble3

      1. Department of Physics, Regional Institute of Education, Bhopal 462 013, India
      2. Regional Sophisticated Instrumentation Centre, Indian Institute of Technology, Mumbai 400 076, India
      3. Department of Physics, Kamla Nehru College, Nagpur 440 009, India
    • Dates

       
  • Bulletin of Materials Science | News

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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
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      Posted on July 25, 2019

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