N-type thermoelectric recycled carbon fibre sheet with electrochemically deposited Bi2Te3

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

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

An N-type thermoelectric recycled carbon fibre sheet with bismuth telluride coating has been successfully synthesised through an electrodeposition 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 correspondingly. Cyclic voltammetry is also carried out in nitric acid solutions to investigate the right range of deposition potential. An N-type thermoelectric sheet was successfully synthesised with the highest attainable Seebeck coefficient of-54 μV/k with an electrical resistivity of 8.9 × 10-5 ohm m. The results shows 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
Title of host publication9th European Conference on Thermoelectrics, ECT 2011
Pages127-130
Number of pages4
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event9th European Conference on Thermoelectrics, ECT 2011 - Thessaloniki, Greece
Duration: 28 Sep 201130 Sep 2011

Publication series

NameAIP Conference Proceedings
Volume1449
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference9th European Conference on Thermoelectrics, ECT 2011
Country/TerritoryGreece
CityThessaloniki
Period28/09/1130/09/11

Keywords

  • Electrical resistivity
  • Recycled carbon fibre
  • Seebeck coefficient

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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