Ait Hana, N. and Aride, J. and Haddad, M. and Benkhouja, K. and Sahraoui, B. and Taibi, M. (2016) Electrical and structural analysis of xPbO-(1-x)B2O3 (0.3≤ x≤ 0.9) glasses. Molecular Crystals and Liquid Crystals, 627 (1). pp. 106-117.

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Abstract

Different xPbO–(1–x)B2O3 glasses were prepared by conventional melting method. They were investigated by differential scanning calorimetry (DSC), Raman and IR spectroscopy. The glasse's structure and the PbO role to the formation of the borate units in the framework is investigated. The dielectric constant and dielectric loss were measured at different frequencies and as a function of the temperature. The electrical measurements carried out showed semiconductor behavior of the conductivity as a function of temperature. The activation energies (Ea) for the conduction process indicated a thermally activated hopping mechanism. The calculated Ea values are typically 0.67–2.46 eV. © 2016 Taylor & Francis Group, LLC.

Item Type: Article
Uncontrolled Keywords: Activation energy; Dielectric losses; Dielectric properties; Differential scanning calorimetry; Infrared spectroscopy; Spacecraft instruments, Activation energies (Ea); borate; Conduction process; Different frequency; Electrical measurement; Melting method; Semiconductor behavior; Thermally activated hopping, Glass
Subjects: Chemistry
Divisions: SCIENTIFIC PRODUCTION > Chemistry
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:45
URI: http://eprints.umi.ac.ma/id/eprint/1888

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