DC conductivity and hopping mechanism in V2O5–B2O3–BaO glasses
✍ Scribed by El-Desoky, M. M.
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 171 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0031-8965
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Glasses of composition (V 2 O 5 ) x (B 2 O 3 ) 1Ϫx with x 0:1; 0.3, 0.5, 0.7 and 0.9 were obtained by a quenching technique. Conductivity measurements using s ac were performed on compact pellets of these materials. The conductivity behavior in direct regime, s dc , is described by the "small polaro
CeO 2 -B 2 O 3 glasses having a broad range of compositions, prepared by a press-quenching method from glass melts, were studied for DC conductivity. The conductivity at 583 K (1000/T ¼ 1.715 K À1 ), ln s 583 , increases by about 16% in the composition regime 20-50 mol% CeO 2 while in the compositio