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

被引：2

作者：

Pang, E. J. X. ^{[1
]}

Pickering, S. J. ^{[1
]}

Chan, A. ^{[2
]}

Wong, K. H. ^{[1
]}

机构：

[1] Univ Nottingham, Div Mat Mech & Struct, Univ Pk, Nottingham NG7 2RD, England

[2] Univ Nottingham, Div Mat Mech & Struct, Nottingham 43500, Malaysia

来源：

9TH EUROPEAN CONFERENCE ON THERMOELECTRICS (ECT2011) | 2012年 / 1449卷

基金：

英国工程与自然科学研究理事会;

关键词：

Recycled carbon fibre; Seebeck coefficient; Electrical resistivity; BISMUTH TELLURIDE; THIN-FILMS; ELECTRODEPOSITION; COMPOSITE;

D O I：

10.1063/1.4731513

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 mu V/k with an electrical resistivity of 8.9 x 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.

引用

页码：127 / 130

页数：4

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