N-type thermoelectric recycled carbon fibre sheet with electrochemically deposited Bi 2Te 3

E. J.X. Pang, S. J. Pickering, A. Chan, K. H. Wong, P. L. Lau

Research output: Journal PublicationArticlepeer-review

20 Citations (Scopus)

Abstract

An N-type thermoelectric recycled carbon fibre sheet with bismuth telluride coating has been successfully synthesised through an electro-deposition technique. The Seebeck coefficient and electrical properties of the combined recycled carbon fibre sheet and bismuth telluride films are reported. Classification of the crystal structure, surface morphology and the elemental composition of the resulting deposits are methodically characterised by XRD, SEM and EDX. Cyclic voltammetry is also carried out in nitric acid solutions to investigate the right range of deposition potential. The synthesis N-type thermoelectric sheet has a highest attainable Seebeck coefficient of -54 μV K -1 and an electrical resistivity of 8.9×10 -5 m. The results show slight differences in morphologies and thermoelectric properties for the films deposited at varying deposition potential. The increase in thermoelectrical properties of the recycled carbon fibre is in line with the development of using coated recycled fibre for thermoelectrical applications.

Original languageEnglish
Pages (from-to)147-153
Number of pages7
JournalJournal of Solid State Chemistry
Volume193
DOIs
Publication statusPublished - Sep 2012
Externally publishedYes

Keywords

  • Bismuth telluride
  • Electrical resistivity
  • Recycled carbon fibres
  • Seebeck coefficient

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'N-type thermoelectric recycled carbon fibre sheet with electrochemically deposited Bi 2Te 3'. Together they form a unique fingerprint.

Cite this