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Synthesis, Characterization, Electrical and Sensing Properties of Polyaniline/Zinc Oxide Nanocomposites

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In the present investigation, Polyaniline/Zinc oxide composites with various weight percentage of zinc oxide (10, 20, 30, 40 and 50 wt%) were synthesized by in-situ polymerization method. The prepared nanocomposites were characterized by X-Ray diffraction (XRD), Scanning electron microscopy (SEM) and Surface area analyzer (BET). The dc conductivity of the samples was measured as a function of temperature in the range 30–180 °C and it was found that the increasing the concentration of ZnO particles increases the conductivity due to the hopping of polarons and extended chain length of composites. Ac conductivity of the composites was studied with applied frequency and it was found that conductivity increases with increase in frequency. The sensing properties of these composites are also studied at room temperature and 30 wt% shows high sensitivity among all composites due to decrease in resistivity.
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Keywords: ELECTRICAL PROPERTIES; NANOCOMPOSITES; NANOPARTICLES; SEM; SENSITIVITY

Document Type: Research Article

Publication date: September 1, 2015

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  • Journal of Advanced Physics is an interdisciplinary peer-reviewed journal consolidating research activities in all experimental and theoretical aspects of advanced physics. The journal aims in publishing articles of novel and frontier physics that merit the attention and interest of the whole physics community. JAP publishes review articles, full research articles, short communications of important new scientific and technological findings in all latest research aspects of physics.
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