Electrical and Optical Properties of Polypyrrole and Polyaniline Blends


This paper reports that PPy/PANI blends are successfully synthesized from solution process. For high performance optoelectronic devices, understanding the electrical and optical properties of materials should be significant. The aim of this work is to study the polymer-blend morphologies as well as the electrical and optical properties of materials. The polymer blends were prepared as a function of composition. Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX), ultraviolet-visible (UV–Vis) spectroscopy, photoluminescence (PL) and current-voltage (IV) characteristics techniques were applied for characterizing the PPy/PANI blends. The PPy/PANI blend is a semiconductor by showing the conductivity in the range of 10–6 to 10–3 S/cm at room temperature. The result determines the optical band gap of each blend with different composition, providing the optical band gap of the blends at the range of 1.53–1.95 eV. Finally, the electrical transport and the chemical composition of the PPy/PANI blends were characterized.

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This work is supported by the Ethiopian Ministry of Education.

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Correspondence to Tekalign A. Tikish.

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Tikish, T.A., Kumar, A. & Kim, J.Y. Electrical and Optical Properties of Polypyrrole and Polyaniline Blends. Polym. Sci. Ser. A 62, 680–690 (2020). https://doi.org/10.1134/S0965545X20330056

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