Temperature and light soaking dependence of the dc electrical conductivity of binary amorphous Sb–Se Films

✍ Scribed by M. Fadel; N.A. Hegab; E. Abd El-Wahabb

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 172 KB
• Volume: 53
• Category: Article
• ISSN: 0042-207X
• DOI: 10.1016/s0042-207x(98)00340-6

✦ Synopsis

The analysis of X-ray diffraction patterns for Sb Se system, indicates the amorphous structure of thin film samples. Thin film samples of Sb Se were prepared by thermal evaporation. The current-voltage characteristics in the temperature range 297-353 K and thickness range 440-937.8 nm are ohmic in the lower field regime followed by non-ohmic behaviour in the higher voltage regime and is satisfactorily explained by the anomalous Poole-Frenkel effect. The dependence of ohmic current on temperature corresponds to a thermally activated process. The dependence of the dc electrical conductivity, measured either in darkness or after exposure to different durations of light, on temperature and exposure time has been studied.