• Abdolali Zolanvari

      Articles written in Pramana – Journal of Physics

    • Electrical properties of a-GexSe100-x

      Abdolali Zolanvari Navdeep Goyal S K Tripathi

      More Details Abstract Fulltext PDF

      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.

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