Ionic transport studies of the glassy silver vanadomolybdate system |
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| Authors: | B V R Chowdari R Gopalakrishnan S H Goh K L Tan |
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| Affiliation: | (1) Department of Physics, National University of Singapore, 0511, Singapore;(2) Department of Chemistry, National University of Singapore, 0511, Singapore |
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| Abstract: | Ionic conductivity of the Ag2O-MoO3-V205 system has been studied over a wide range of frequency, temperature and composition. A narrower glass forming region has been found in comparison to the corresponding Ag2O-MoO3-P2O5 and Ag2O-B2O3-P2O5 systems. The highest conductivity at room temperature,  rt, = 3.21 × 10–6 –1 cm–1 (d.c.) with an activation energy,E
act, of 0.466 eV, was observed for the glass former's ratio of unity. Further, it reached a maximum value of 2.2 × 10–2¨-1 cm–1 withE
act = 0.153 eV when the oxide-base glass was dissolved with Agl. D.c. conductivity, hopping rate and relaxation time in the present system have been found to be characterized by the same activation energy. |
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