University of Leicester
Browse
BiTe_electrochem.pdf (734.34 kB)

Electrochemical deposition of bismuth telluride thick layers onto nickel

Download (734.34 kB)
journal contribution
posted on 2018-01-17, 12:22 authored by C. Lei, Karl S. Ryder, E. Koukharenko, M. Burton, I. S. Nandhakumar
Bismuth telluride (Bi2Te3) is the currently best performing thermoelectric (TE) material in commercial TE devices for refrigeration and waste heat recovery up to 200 °C. Up to 800 μm thick, compact, uniform and stoichiometric Bi2Te3 films were synthesized by pulsed electrodeposition from 2 M nitric acid baths containing bismuth and tellurium dioxide on 1 cm2 nickel (Ni) substrates at average film growth rates of ~50 μm/h. Pre-treatment of the Ni substrate was found to significantly enhance the adhesion of Bi2Te3 material onto Ni while pulsed electrodeposition was used to increase the compactness of the material. To maintain a homogeneous composition across the thickness of the films, a sacrificial Bi2Te3 anode was employed. All deposits produced were n-type with a Seebeck coefficient of up to −80 μV/K and an electrical conductivity of ~330 S/cm at room temperature.

History

Citation

Electrochemistry Communications, 2016, 66, pp. 1-4

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Chemistry

Version

  • AM (Accepted Manuscript)

Published in

Electrochemistry Communications

Publisher

Elsevier

issn

1388-2481

eissn

1873-1902

Acceptance date

2016-02-05

Copyright date

2016

Available date

2018-02-13

Publisher version

http://www.sciencedirect.com/science/article/pii/S1388248116300133?via=ihub

Notes

The file associated with this record is under embargo until 24 months after publication, in accordance with the publisher's self-archiving policy. The full text may be available through the publisher links provided above.

Language

en

Usage metrics

    University of Leicester Publications

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC