Synthesis,characterization, AC conductivity,and diode properties of polyaniline–CaTiO3 composites |
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| Authors: | Aashis S Roy Shruti Gopalkrishna Hegde Ameena Parveen |
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| Institution: | 1. Department of Materials Science, Gulbarga University, , Gulbarga, Karnataka, India;2. Chemical Engineering, Dayananda Sagar College of Engineering, , Bangalore, Karnataka, India;3. Department of Physics, Government First Grade College, , Gurmatkal, Yadgir, Karnataka, India |
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| Abstract: | Polyaniline–CaTiO3 composites of different weight percentages were prepared by in situ polymerization. The prepared composites were characterized by Fourier transform infrared spectroscopy for structural studies, and a morphology analysis was carried out by scanning electron microscopy studies. Real and imaginary parts of the complex impedance were determined for given samples as a function of frequency. Current–voltage and capacitance–voltage measurements were also carried out. The carrier mobility μ values of neat polyaniline and polyaniline–CaTiO3 composites were found to be 5.37 × 10?3 and 2.73 × 10?2, respectively, and a significant enhancement, as compared with the reported data, was observed. Therefore, this study may provide a better route for technological applications in all fields in the near future and can also be represented by a pure electronic model. Copyright © 2013 John Wiley & Sons, Ltd. |
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| Keywords: | conductivity impedance spectroscopy bulk resistance grain boundaries J– V measurements |
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