• Mobility activation in thermally deposited CdSe thin films

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    • 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

  • Bulletin of Materials Science | News

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