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Issue 4, 2017
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Engineering carrier scattering at the interfaces in polyaniline based nanocomposites for high thermoelectric performances

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Abstract

We have developed a novel strategy to in situ synthesize water-soluble ternary PANI/SWNT/Te nanocomposites with uniform structures and high thermoelectric (TE) properties. An abnormally high Seebeck coefficient was obtained for the ternary PANI/SWNT/Te nanocomposite films due to the energy filtering effect at the interfaces of PANI/SWNTs and PANI/Te, while the electrical conductivity still remained relatively high. As a result, the TE power factor of the ternary composite films was up to 101 μW m−1 K−2, which was much higher than that of the individual components (PANI, SWNTs and Te nanorods). Moreover, a TE module made up of the ternary PANI/SWNT/Te nanocomposite films was fabricated, which was able to generate a high power density of 62.4 μW cm−2. Our results reveal a successful approach through designing the nanostructures and energy barriers of ternary nanocomposites to improve the TE properties of PANI.

Graphical abstract: Engineering carrier scattering at the interfaces in polyaniline based nanocomposites for high thermoelectric performances

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Publication details

The article was received on 25 Aug 2016, accepted on 14 Oct 2016 and first published on 01 Nov 2016


Article type: Research Article
DOI: 10.1039/C6QM00188B
Citation: Mater. Chem. Front., 2017,1, 741-748
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    Engineering carrier scattering at the interfaces in polyaniline based nanocomposites for high thermoelectric performances

    L. Wang, Q. Yao, W. Shi, S. Qu and L. Chen, Mater. Chem. Front., 2017, 1, 741
    DOI: 10.1039/C6QM00188B

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