• Effect of CdS nanoparticles on photoluminescence spectra of Tb3+ in sol–gel-derived silica glasses

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      https://www.ias.ac.in/article/fulltext/boms/034/02/0227-0231

    • Keywords

       

      Glasses; sol–gel technique; nanoparticles; semiconductors; photoluminescence.

    • Abstract

       

      CdS nanoparticles doped with Tb3+ were synthesized by sol–gel technique. The influence of CdS on the Tb3+ glass was studied by UV-Visible and luminescence spectroscopy. The luminescence intensity of the glasses increased significantly in the presence of CdS nanoparticles. Terbium ions excited into the ${}^{5}D_{3}$ level have a rich emission spectrum in the 400–700 nm range decaying to different ${}^{7}F_{J}$ levels. The intensity of violet and blue luminescence from ${}^{5}D_{3}$ level is highly dependent on Tb3+ concentration, on presence of CdS co-dopant and annealing conditions.

    • Author Affiliations

       

      S Rai1 L Bokatial1

      1. Department of Physics, Dibrugarh University, Dibrugarh 786 004, India
    • Dates

       
  • Bulletin of Materials Science | News

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