Journal of Materials Science

, Volume 44, Issue 13, pp 3376–3381 | Cite as

Effect of Ag on the electrical properties of a-Ge20Se80 glasses

  • Gurinder Singh
  • N. Goyal
  • G. S. S. Saini
  • P. S. Chandel
  • S. K. TripathiEmail author


This article reports the effect of Ag impurity (low ~4 and ~6 at.% and high ~10 at.%) on the ac conductivity (σac) of a-Ge20Se80 glass. Frequency (ω)-dependent ac conductance and capacitance of the samples over a frequency range ~100 Hz to 50 kHz was taken in the temperature range ~268–358 K. At frequency 2 kHz and temperature 298 K, the value of σac increases at low as well as at higher concentration of Ag. The σac is proportional to ωs for undoped and doped samples. The value of frequency exponent (s) decreases as the temperature increases.


Ag2S Chalcogenide Glass Frequency Exponent Aquadag Single Polaron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was financially supported by the C.S.I.R. (major project), New Delhi.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Gurinder Singh
    • 1
  • N. Goyal
    • 1
  • G. S. S. Saini
    • 1
  • P. S. Chandel
    • 1
  • S. K. Tripathi
    • 1
    Email author
  1. 1.Centre of Advanced Study in PhysicsPanjab UniversityChandigarhIndia

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