• Optical properties of 60B2O3–(40–𝑥)PbO–𝑥MCl2 and 50B2O3–(50–𝑥) PbO–𝑥MCl2 (M = Pb, Cd) glasses

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    • Keywords

       

      Borate glasses; optical energy gap; Urbach energy.

    • Abstract

       

      Optical absorption and transmittance spectra of 60B2O3–(40–𝑥)PbO–𝑥MCl2 and 50B2O3–(50–𝑥) PbO–𝑥MCl2 (M = Pb, Cd) (10 ≤ 𝑥 ≤ 20) glasses of varying composition were recorded in the UV-visible region. Various optical parameters such as optical energy gap (𝐸opt), Urbach energy (𝐸e), refractive index (𝑛0), optical dielectric constant (𝜀), and ratio of carrier concentration to the effective mass (𝑁/𝑚*) were determined. The variation of optical energy gap with increase in the concentration of PbCl2 or CdCl2 is discussed.

    • Author Affiliations

       

      Shajo Sebastian1 M Abdul Khadar2

      1. School of Pure and Applied Physics, Mahatma Gandhi University, Priyadarshini Hills PO, Kottayam 686 560, India
      2. Department of Physics, University of Kerala, Kariavattom PO, Thiruvananthapuram 695 581, India
    • Dates

       
  • Bulletin of Materials Science | News

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