An impedance spectroscopy study of sol-gel prepared La 0.9 Sr 0.1 Fe 0.7 Mo 0.3 O 3 perovskite

In this present work, impedance spectroscopy was applied to investigate the electrical properties of La 0.9 Sr 0.1 Fe 0.7 Mo 0.3 O 3 (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 com...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-07, Vol.902 (1), p.12035
Main Authors: Triyono, D, Rafsanjani, R A, Laysandra, H
Format: Article
Language:English
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Summary:In this present work, impedance spectroscopy was applied to investigate the electrical properties of La 0.9 Sr 0.1 Fe 0.7 Mo 0.3 O 3 (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 σ DC vs 10 3 /T (K −1 ) satisfies Arrhenius law and the activation energy is found to be 0.45 eV for this conduction mechanism.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/902/1/012035