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Electrical properties, equivalent circuit and dielectric relaxation studies of [(C3H7)4N]3Bi3Cl12 compound
Abstract : The tri-tetrapropylammonium dodeca chlorobismuthate(III) has been characterized by differential scanning calorimetry (DSC), X-ray powder and impedance spectroscopy. DSC analysis and X-ray diffraction as function of temperature have revealed one irreversible solid–solid phase
transition at 414 ± 5 K of order–disorder types. The electrical properties were studied using impedance spectroscopy at different temperatures in the frequency range of 209 Hz–5 MHz. The obtained results were analyzed by fitting the experimental data with the equivalent electrical circuit. We observed that the temperature dependence of the electrical conductivity of materials exhibits a crossover from T-1/4 to T-1 dependence in the temperature range between 414 and 453 K. Furthermore, the modulus plots can be characterized by the non-experiential decay function. The
analysis of the experimental data based on the jump relaxation model has shown that the translation motion of the charge carrier and reorientation hopping between the equivalent sites of the metal chloride [Bi3Cl12]3- anions and the [(C3H7)4N]+ cations are responsible for the observed ac conductivity.
https://hal-univ-lemans.archives-ouvertes.fr/hal-02131602
Contributeur : Gwenaël Corbel <>
Soumis le : jeudi 16 mai 2019 - 14:25:17
Dernière modification le : mercredi 25 mars 2020 - 09:21:35
Contributeur : Gwenaël Corbel <>
Soumis le : jeudi 16 mai 2019 - 14:25:17
Dernière modification le : mercredi 25 mars 2020 - 09:21:35