| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1490037 | Materials Research Bulletin | 2012 | 5 Pages |
Ac conductivity measurements and its analysis has been performed on xBi2O3–(65−x)Li2O–20ZnO–15B2O3 (0 ≤ x ≤ 20) glasses in the temperature range 30–300 °C and a frequency range of 100 Hz to 1 MHz. The dc conductivity increased and the activation energy decreased with lithium content. The frequency dependent conductivity has been analyzed employing conductivity and modulus formalisms. The onset of conductivity relaxation shifts towards higher frequencies with temperature. The Almond–West conductivity formalism is used to explain the scaling behavior, and the relaxation mechanism is independent of temperature.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Ac conductivity measurements and its analysis has been performed on Bi2O3–Li2O–ZnO–B2O3 glasses in the temperature range 30–300 °C and a frequency range of 100 Hz to 1 MHz. ► The dc conductivity increased and the activation energy decreased with lithium content. ► The frequency dependent conductivity has been analyzed employing conductivity and modulus formalisms. ► The onset of conductivity relaxation shifts towards higher frequencies with temperature. ► The Almond–West conductivity formalism is used to explain the scaling behavior, and the relaxation mechanism is independent of temperature.
