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DC AND AC CONDUCTIVITY MEASUREMENTS OF Se60Te30Ge10 FILMS | ||
| Journal of Al-Nahrain University - Science | ||
| Article 1, Volume 12, Issue 4, 2009, Pages 72-77 | ||
| Authors | ||
| Raad M.Al-Haddad; Iftikhar M.Ali; Issam M. Ibrahim; Izzat M.Al-Essa | ||
| Abstract | ||
| D.c. σ(0) and a.c conductivity σ(w) and dielectric parameter ( and tan) of Se60Te30Ge10 glassy thin films which were prepared by thermal evaporation were investigated. Measurements of a.c. conductivity over frequency range (100Hz-100kHz) and temperature range (303-363K) showed that the a.c. conductivity follows the empirical formula a.c (w)=Aws, where (s) lies between (1.03-0.60).In the glasses of Se60Te30Ge10 thin films the d.c. conductivity along localized states prevails. A.c conductivity is explained by hopping mechanism of charge transfer between two defect centers. | ||
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