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Open AccessArticle

Flexible Thermoelectric Composite Films of Polypyrrole Nanotubes Coated Paper

1
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
2
CSIRO Manufacturing, Private Bag 10, Clayton South, VIC 3169, Australia
*
Authors to whom correspondence should be addressed.
Academic Editor: Norbert M. Nemes
Coatings 2017, 7(12), 211; https://doi.org/10.3390/coatings7120211
Received: 16 October 2017 / Revised: 12 November 2017 / Accepted: 13 November 2017 / Published: 24 November 2017
(This article belongs to the Special Issue Novel Thin Film Materials for Thermoelectric Applications)
Flexible thermoelectric composite films of polypyrrole (PPy) nanotubes coated paper were fabricated by an in-situ polymerization procedure using methyl orange as a template and paper as the substrate for the first time. Both the electrical conductivity and Seebeck coefficient of the polypyrrole nanotubes coated paper composite films have been enhanced (from ~0.048 S/cm to ~0.068 S/cm and from ~5.34 μV/K to ~8.21 μV/K for the average value for three measurements, respectively) as the temperature increased from ~300 K to ~370 K, which lead to the same trend of the power factor. The thermal conductivity of the polypyrrole nanotubes coated composite films was very low (~0.1275 W·m−1·K−1 at ~300 K), and a highest ZT (material’s dimensionless figure of merit (S2σT/κ)) value of 3.2 × 10−7 was obtained at ~370 K. View Full-Text
Keywords: PPy nanotubes; coating; flexible; thermoelectric properties PPy nanotubes; coating; flexible; thermoelectric properties
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MDPI and ACS Style

Li, J.; Du, Y.; Jia, R.; Xu, J.; Shen, S.Z. Flexible Thermoelectric Composite Films of Polypyrrole Nanotubes Coated Paper. Coatings 2017, 7, 211.

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