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Synthesis and Characterization of Multiwall Carbon Nanotubes-Polyaniline Nanocomposites

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In this paper synthesis and characterization of the microstructural and electronic properties of polyaniline (PANI) Multiwall carbon nanotube (MWCNTs) composites are presented. MWCNTs-PANI composites have been prepared by solution mixing method with different weight percentage of MWCNTs (5, 10 and 15) wt.% and deposited it by spin coating on silicon wafer substrate. Fourier Transform Infrared Spectroscopy shows no difference between PANI and its composites. However, a change in peaks shape and absorption intensity has been observed. The loss factor was increased at the MWCNTs concentration increase and we can see that the loss factor increase at the low temperature, because of the dipole molecules cannot orient themselves in the lower temperature region. The electrical conductivity of nanocomposites increases due to an increase in free charge at a weight percentage of MWCNTs increase. The Current–voltage curve of the fabricated devices shows a significant improvement in current with MWCNTs weight percentage content. The microscopic images show that the dispersion of MWCNTs into PANI leads to the formation a new conductive pathway.
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Document Type: Research Article

Publication date: November 1, 2018

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  • Journal of Nanoelectronics and Optoelectronics (JNO) is an international and cross-disciplinary peer reviewed journal to consolidate emerging experimental and theoretical research activities in the areas of nanoscale electronic and optoelectronic materials and devices into a single and unique reference source. JNO aims to facilitate the dissemination of interdisciplinary research results in the inter-related and converging fields of nanoelectronics and optoelectronics.
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