An impedance spectroscopy study of sol-gel prepared La0.9Sr0.1Fe0.7Mo0.3O3perovskite

D. Triyono, R. A. Rafsanjani, H. Laysandra

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Abstract

In this present work, impedance spectroscopy was applied to investigate the electrical properties of La0.9Sr0.1Fe0.7Mo0.3O3 (LSFMo) perovskite prepared by sol-gel and sintering methods. SEM analysis reveals the non-uniform grain distributed in samples with average grain size 347 nm. The complex impedance has been examined in the frequency range of 100 Hz-1 MHz and temperature range of 75-250 C. The Nyquist plots were identified to form single semicircular arc described as grain behavior working in conduction mechanism. The dielectric and complex conductivity is shown depending on the temperature and frequency. The evolution of ln σDC vs 103/T (K-1) satisfies Arrhenius law and the activation energy is found to be 0.45 eV for this conduction mechanism.

Original languageEnglish
Article number012035
JournalIOP Conference Series: Materials Science and Engineering
Volume902
Issue number1
DOIs
Publication statusPublished - 2020
Event4th International Symposium on Current Progress in Functional Materials, ISCPFM 2019 - Bali, Indonesia
Duration: 6 Nov 20197 Nov 2019

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