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      https://www.ias.ac.in/article/fulltext/boms/044/0054

    • Keywords

       

      Physical vapour transport growth; cadmium telluride; spectral analysis; energy bandgap and phonon energy; band tailing; carrier tunnelling.

    • Abstract

       

      Absorption spectra of hexagonally structured, tellurium excess p-type cadmium telluride (CdTe) grown from vapour phase having conductivity $2.529\times 10^{4}$ ($\Omega$ cm)$^{-1}$ was studied in the range 700–880 nm. The existence of phononassistedindirect transition was confirmed. The direct and indirect bandgaps and the involved phonon energy were identified. The analysis revealed a band tailing and the presence of a strong internal electric field responsible for the tunnelling of charge carriers.

    • Author Affiliations

       

      MATHEW ROSHAN1 KIRIT D PATEL2 VIVEK M PATHAK2

      1. Amity School of Engineering and Technology, Amity University Chhattisgarh, Raipur 493225, India
      2. Department of Physics, Sardar Patel University, Vallabh Vidyanagar, Anand 388120, India
    • Dates

       
  • Bulletin of Materials Science | News

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