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    • Mobility activation in thermally deposited CdSe thin films

      Kangkan Sarmah Ranjan Sarma

      Thin Films Volume 32 Issue 4 August 2009 pp 369-373

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/032/04/0369-0373

    • Keywords

       

      Cadmium selenide thin film; trap depth; photocurrent decay.

    • Abstract

       

      Effect of illumination on mobility has been studied from the photocurrent decay characteristics of thermally evaporated CdSe thin films deposited on suitably cleaned glass substrate held at elevated substrate temperatures. The study indicates that the mobilities of the carriers of different trap levels are activated due to the energy of incident illumination, which results in the existence of two distinct trap levels. In each trap depth the energy of the trap increases linearly. It infers that there is a linear distribution of traps of different energies below the conduction band.

    • Author Affiliations

       

      Kangkan Sarmah1 Ranjan Sarma1

      1. Department of Physics, Gauhati University, Guwahati 781 014, India

    • Dates

       
      Published
      August 2009
      Manuscript received
      19 May 2008
      Manuscript revised
      26 April 2009

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