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Conducting Properties of Polyaniline in the THz Region: Investigations of Various Processing Conditions

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Abstract

The conduction properties of polyaniline (PAni) with various processing conditions were demonstrated using terahertz time-domain spectroscopy. The effects of protonation were observed by varying the doping time and annealing time. The measurements agreed with the Mott-Davis hopping model with the exponent varying inversely with the protonation conditions. Also, the density of the samples increased with compression pressure thereby increasing the inter-chain and inter-particle charge transport. Lastly, the THz response on PAni-polyethylene pellets showed dominant contribution of PAni network.

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Acknowledgements

AKGT would like to thank the Hitachi Scholarship Foundation for the financial support. Also, the authors extend their gratitude to Prof. Tomoyuki Mochida of the Department of Chemistry, Graduate School of Science, Kobe University, for the impedance analyzer.

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Authors and Affiliations

  1. Graduate School of Science, Kobe University, Kobe, 657-8501, Japan

    Alvin Karlo G. Tapia & Keisuke Tominaga

  2. Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños, College, Laguna, 4031, Philippines

    Alvin Karlo G. Tapia

  3. Molecular Photoscience Research Center, Kobe University, Kobe, 657-8501, Japan

    Keisuke Tominaga

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  1. Alvin Karlo G. Tapia
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Correspondence to Keisuke Tominaga.

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Tapia, A.K.G., Tominaga, K. Conducting Properties of Polyaniline in the THz Region: Investigations of Various Processing Conditions. J Infrared Milli Terahz Waves 38, 885–895 (2017). https://doi.org/10.1007/s10762-017-0363-4

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