| Autor: |
Bhadrarao, D., Pavić, L., Bafti, A., Pisk, J., Sekhar, A. Venkata, Naga Koti Reddy, G., Kumar, V. Ravi, Baskaran, G. Sahaya, Raju, G. Naga, Veeraiah, N. |
| Zdroj: |
ECS Journal of Solid State Science and Technology; October 2023, Vol. 12 Issue: 10 p103003-103003, 1p |
| Abstrakt: |
In this study, we investigated the dielectric properties of Pb3O4-Bi2O3-B2O3(PBB) glass ceramics doped with varying CuO concentrations across wide frequency and temperature ranges. The structural analysis involved XRD, SEM, XPS, DTA, FT-IR, ESR, and OA spectra, revealed the presence of anisotropic CuBi2O4ferroelectric crystal phases with the size of a few microns in these glass ceramics. The glass-ceramics containing a higher content of CuO indicated a maximal reduction of Cu2+to Cu+ions that inhabit network-forming sites. Dielectric properties, including ε′, M,′ M″, Z, and σac, were studied as functions of CuO content. ε′and σacwere observed to decrease, while impedance was found to increase with CuO up to 0.8 mol%. Observed dipolar effects were quantitatively discussed with the identification of probable dipoles. The study indicated decreased ionic and increased polaronic contributions to σacwith a rise of CuO from 0.2 to 0.8 mol%. In conclusion, glass ceramics with low CuO content are suitable as solid electrolytes, while higher CuO content serves as electrode materials in solid-state batteries. |
| Databáze: |
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