Conduction process in some promising lithium-ion doped glassy ceramics. (2022)

• Record Type: Journal Article
• Authors: Sengupta, Aditi; Bhattacharya, Sanjib; Ghosh, Chandan Kr.
• Is Part Of: Materials today. Volume 66:Part 7(2022)
• Page Start: 3287
• Page End: 3291
• Publication Date: 2022
• Subjects: Glassy-ceramics -- Hopping frequency -- Ionic conductivity -- Sub-diffusive motion; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.06.410
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: A novel glassy ceramic, 0.3Li2 O-(0.7)(0.5MoO3 -0.4V2 O5 -0.1ZnO) has been developed using the melt quenching technique. The temperature and frequency dependency of ionic conductivity has been established, following Almond-West formalism and Jonscher's universal power law respectively. The thermally activated nature of the sample can be exposed by its DC conductivity (σdc ) study. The effect of composition on hopping frequency and corresponding activation energy has been calculated. The plateau (conductivity dependent on frequency) region in the lower frequency zone is pronounced by the sub diffusive movements of conducting Li + ions. Whereas, in the dispersive high-frequency zone, Li + ion migration in a pseudo-three-dimensional space is the main reason for conductivity in percolating networks.