Journal
SYNTHETIC METALS
Volume 196, Issue -, Pages 173-177Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2014.08.001
Keywords
Electrical conductivity; Self-assembly; Conducting polymers; Film; Thermoelectric effects
Funding
- MOE [RG 16/12, ARC 20/12, ARC 2/13]
- CREATE program (Nanomaterials for Energy and Water Management) from NRF
- New Initiative Fund from NTU, Singapore
- National Natural Science Foundation of China [21021091, 21333011]
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Flexible and lightweight organic thermoelectric (TE) devices have potential applications in self-powered health monitoring for humans and wearable self-powered gas/chemical detection. Two flexible and freestanding polypyrrole (PPy) nanotube films (PPy-1 and PPy-2) have been fabricated and the structures, morphologies and thermoelectric properties of the as-prepared PPy films have been carefully investigated. Our results show that the smaller size and longer length of PPy nanotubes are helpful to enhance the electrical conductivity and Seebeck coefficient while size and length have less effect on thermal conductivity. (C) 2014 Elsevier B.V. All rights reserved.
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