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      https://www.ias.ac.in/article/fulltext/boms/009/01/0047-0054

    • Keywords

       

      Amorphous germanium; annealing; substrate temperature; density of states; optical energy gap; d.c. electrical conductivity

    • Abstract

       

      The influence of substrate temperature on electrical and optical properties of the amorphous germanium films deposited under well-defined conditions has been investigated. DC electrical conductivity in the temperature range of 80–573°K has been measured. In the low temperature region Mott’sT−1/4 law of conductivity is obeyed. The estimated values ofT0 andN show significant decrease with change inTs in steps of 50°K. Similar results are seen in annealed films. The values of activation energy and optical energy increase withTs.

    • Author Affiliations

       

      S V Chandole1 2 Ujwala V Hulsurkar1 S S Shah1

      1. Department of Physics, Marathwada University, Aurangabad - 431 004, India
      2. Department of Physics, Deogiri College, Aurangabad - 431 005, India
    • Dates

       
  • Bulletin of Materials Science | News

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