Dergiler / Turkish Journal of Physics / 2005 / Cilt: 29 - Sayı: 4

Some Physical Properties of g Irradiated Gex(As2Te3)100 - x Chalcogenide System

Sayfa
223–232
DOI
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Özet

The effect of g -radiation on the electrical conductivity, switching, and optical properties of the chalcogenide amorphous system Gex(As2Te3)100 - x (where x = 0,1,5,10 atm %) have been studied. The results show that the radiation causes a shift of the optical gap,as well as a change in the electrical activation energy and the threshold voltage. As the g -doses increase, the values of the allowed indirect optical energy gap Eopt for the different compositions decreases and the tail energy width increases.

Abstract

The effect of g -radiation on the electrical conductivity, switching, and optical properties of the chalcogenide amorphous system Gex(As2Te3)100 - x (where x = 0,1,5,10 atm %) have been studied. The results show that the radiation causes a shift of the optical gap,as well as a change in the electrical activation energy and the threshold voltage. As the g -doses increase, the values of the allowed indirect optical energy gap Eopt for the different compositions decreases and the tail energy width increases.

Anahtar kelimeler: Chalcogenide-glasses; gamma-ray effects; visible-spectra, radiative-electrical-optical-properties; gamma-irradiation; transmission-edge-shift; defect-formation.