• Preparation of ZnO phosphors by a new technique

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/015/02/0181-0188

    • Keywords

       

      ZnO phosphors; photoluminescence; electroluminescence

    • Abstract

       

      Photo and electroluminescent properties of ZnO phosphors prepared by burning zinc in an atmosphere of pure oxygen have been reported. The peak positions obtained by resolving the experimental curves into Gaussian profiles are explained by assuming that the rare earths form the donor levels while the acceptor levels cause the emission of undoped phosphors. Voltage dependence of electroluminescent brightness shows that the mechanism of excitation consists of acceleration-collision. Brightness waves at different concentrations of rare earths and frequency of excitation are also studied and discussed.

    • Author Affiliations

       

      S Bhushan1 2 R P Asare1

      1. Department of Physics, Ravishankar University, Raipur - 492 010, India
      2. National Institute of Electricity and Electronics, Boumerdes, Algeria
    • Dates

       
  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.