December 13, 2019
Dariush Souri

Dariush Souri

Academic rank: Associate professor
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Education: Ph.D in فیزیک
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Faculty: science

Research

Title Effect of High Electric Field on The DC Conduction of TeO2-V2O5-MoO3 Amorphous Bulk Material
Type Article
Keywords
high electric field, amorphous semiconductor, Pool–Frenkel, switching
Journal Czechoslovak Journal of Physics
Researchers Dariush Souri

Abstract

Effect of high electric field on the dc conductivity of TeO2-V2O5-MoO3 amorphous bulk samples withdifferent molar ratio of eachcomponent was investigated withgap-type electrode arrangement. At low electric fields, the current-voltage (I–V ) characteristics has a linear shape, while at high electric fields (> 103 V/cm), bulk samples show nonlinear behavior (nonohmic conduction) and current-voltage characteristics shows increasing de- viation from Ohm’s law with increasing current density. High-field effect of Pool–Frenkel type was observed at electrical fields about 103 –104 V/cm. In addition, positive devia- tion from Pool–Frenkel effect was observed when a field higher than about 104 V/ cm wa s applied.