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    • Keywords


      Chalcogenides; hopping conduction; defect states

    • Abstract


      In general, the conductivity in chalcogenide glasses at higher temperatures is dominated by band conduction (DC conduction). But, at lower temperatures, hopping conduction dominates over band conduction. A study at lower temperature can, eventually, provide useful information about the conduction mechanism and the defect states in the material. Therefore, the study of electrical properties of GexSe100-x in the lower temperature region (room temperature) is interesting. Temperature and frequency dependence of GexSe100-x (x = 15, 20 and 25) have been studied over different range of temperatures and frequencies. An agreement between experimental and theoretical results suggested that the behaviour of germanium selenium system (GexSe100-x) have been successfully explained by correlated barrier hopping (CBH) model.

    • Author Affiliations


      Abdolali Zolanvari1 Navdeep Goyal2 S K Tripathi2

      1. Department of Physics, Arak University, Arak - 38156, Iran
      2. Department of Physics, Panjab University, Chandigarh - 160 014, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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