<abstract xmlns="http://www.w3.org/1999/xhtml">PbO-ZnF2-P2O5 glasses doped with different mol% (0.1 to 1.0) of MoO3 have been prepared. Dielectric properties ∊′(ω), tanδ, σAC, of the synthesized samples were calculated from frequency measurements versus temperature. Space charge polarization was used to analyze the temperature and frequency dispersions of dielectric constant ∊′(ω) and dielectric loss tanδ. Quantum mechanical tunneling model was employed to explain the origin of AC conductivity. The AC conductivity exhibited an increasing trend with increasing concentration of MoO3 (up to 0.2 mol%) but the activation energy for conduction decreased. The plots of AC conductivity revealed that the relaxation dynamics depends on MoO3 dopant concentration.</abstract>

PbO-ZnF2-P2O5 glasses doped with different mol% (0.1 to 1.0) of MoO3 have been prepared. Dielectric properties ∊′(ω), tanδ, σAC, of the synthesized samples were calculated from frequency measurements versus temperature. Space charge polarization was used to analyze the temperature and frequency dispersions of dielectric constant ∊′(ω) and dielectric loss tanδ. Quantum mechanical tunneling model was employed to explain the origin of AC conductivity. The AC conductivity exhibited an increasing trend with increasing concentration of MoO3 (up to 0.2 mol%) but the activation energy for conduction decreased. The plots of AC conductivity revealed that the relaxation dynamics depends on MoO3 dopant concentration.

Role of molybdenum ions in lead zinc phosphate glass system by means of dielectric studies

Department of Physics, National Institute of Technology Warangal

Department of Electronics and Instrumentation Engineering

Department of Humanities and Sciences (Physics), VNR Vignana Jyothi Institute of Engineering and Technology

Laboratory of Active Components and Materials

Laboratoire d’Innovation en construction

Eco-conception et Génie Sismique (LICEGS)

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

PbO-ZnF2-P2O5 glasses doped with different mol% (0.1 to 1.0) of MoO3 have been prepared. Dielectric properties ∊′(ω), tanδ, σAC, of the synthesized samples...

Role of molybdenum ions in lead zinc phosphate glass system by means of dielectric studies

Publié en ligne: 01 févr. 2019

Pages: 623 - 629

Reçu: 11 juil. 2017

Accepté: 20 avr. 2018

DOI: https://doi.org/10.2478/msp-2018-0074

Mots clés
electrical and dielectric properties, quantum mechanical tunneling, AC conductivity, relaxation dynamics

© 2018 P. Venkateswara Rao et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Role of molybdenum ions in lead zinc phosphate glass system by means of dielectric studies

Publié en ligne: 01 févr. 2019

Pages: 623 - 629

Reçu: 11 juil. 2017

Accepté: 20 avr. 2018

DOI: https://doi.org/10.2478/msp-2018-0074

Mots cléselectrical and dielectric properties, quantum mechanical tunneling, AC conductivity, relaxation dynamics

© 2018 P. Venkateswara Rao et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
electrical and dielectric properties, quantum mechanical tunneling, AC conductivity, relaxation dynamics