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Optimization of the electrodeposition process of high-performance bismuth antimony telluride compounds for thermoelectric applications

Optimization of the electrodeposition process of high-performance bismuth antimony telluride compounds for thermoelectric applications
Optimization of the electrodeposition process of high-performance bismuth antimony telluride compounds for thermoelectric applications
High-quality films of bismuth antimony telluride were synthesized by electrodeposition from nitric acid electroplating baths. The influence of a surfactant, sodium ligninsulfonate, on the structure, morphology, stoichiometry, and homogeneity of the deposited films has been investigated. It was found that addition of this particular surfactant significantly improved the microstructural properties as well as homogeneity of the films with a significant improvement in the thermoelectric properties over those deposited in the absence of surfactant. A detailed microprobe analysis of the deposited films yielded a stoichiometric composition of Bi0.35Sb1.33Te3 for the films electrodeposited in the absence of surfactant and a stoichiometry of Bi0.32Sb1.33Te3 for films deposited in the presence of surfactant
0743-7463
16980-16985
Kuleshova, Jekaterina
0ab2d64a-89ff-47e3-b04a-bdade093788d
Koukharenko, Elena
c693d4e8-4666-4bf8-8613-6ddde85c7b32
Li, Xiaohong
9c4a40b0-c567-476b-b698-ae51b3f13dbd
Frety, Nicole
4464c8d1-d2fd-4e54-9999-44d4c4651e4a
Nandhakumar, Iris S.
e9850fe5-1152-4df8-8a26-ed44b5564b04
Tudor, John
90c9df33-7953-4d4f-9c74-0fe1d306911b
Beeby, Steve P.
ba565001-2812-4300-89f1-fe5a437ecb0d
White, Neil M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Kuleshova, Jekaterina
0ab2d64a-89ff-47e3-b04a-bdade093788d
Koukharenko, Elena
c693d4e8-4666-4bf8-8613-6ddde85c7b32
Li, Xiaohong
9c4a40b0-c567-476b-b698-ae51b3f13dbd
Frety, Nicole
4464c8d1-d2fd-4e54-9999-44d4c4651e4a
Nandhakumar, Iris S.
e9850fe5-1152-4df8-8a26-ed44b5564b04
Tudor, John
90c9df33-7953-4d4f-9c74-0fe1d306911b
Beeby, Steve P.
ba565001-2812-4300-89f1-fe5a437ecb0d
White, Neil M.
c7be4c26-e419-4e5c-9420-09fc02e2ac9c

Kuleshova, Jekaterina, Koukharenko, Elena, Li, Xiaohong, Frety, Nicole, Nandhakumar, Iris S., Tudor, John, Beeby, Steve P. and White, Neil M. (2010) Optimization of the electrodeposition process of high-performance bismuth antimony telluride compounds for thermoelectric applications Langmuir, 26, (22), pp. 16980-16985. (doi:10.1021/la101952y). (PMID:20923228).

Record type: Article

Abstract

High-quality films of bismuth antimony telluride were synthesized by electrodeposition from nitric acid electroplating baths. The influence of a surfactant, sodium ligninsulfonate, on the structure, morphology, stoichiometry, and homogeneity of the deposited films has been investigated. It was found that addition of this particular surfactant significantly improved the microstructural properties as well as homogeneity of the films with a significant improvement in the thermoelectric properties over those deposited in the absence of surfactant. A detailed microprobe analysis of the deposited films yielded a stoichiometric composition of Bi0.35Sb1.33Te3 for the films electrodeposited in the absence of surfactant and a stoichiometry of Bi0.32Sb1.33Te3 for films deposited in the presence of surfactant

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Published date: November 2010
Organisations: Chemistry, Electronics & Computer Science

Identifiers

Local EPrints ID: 172211
URI: http://eprints.soton.ac.uk/id/eprint/172211
ISSN: 0743-7463
PURE UUID: 1594b975-adbb-45f1-8314-abc49490abf4
ORCID for Steve P. Beeby: ORCID iD orcid.org/0000-0002-0800-1759
ORCID for Neil M. White: ORCID iD orcid.org/0000-0003-1532-6452

Catalogue record

Date deposited: 25 Jan 2011 11:51
Last modified: 18 Jul 2017 12:14

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Contributors

Author: Jekaterina Kuleshova
Author: Elena Koukharenko
Author: Xiaohong Li
Author: Nicole Frety
Author: John Tudor
Author: Steve P. Beeby ORCID iD
Author: Neil M. White ORCID iD

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