Materials Today: Proceedings 3 (2016) 533 – 537
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2214-7853 © 2016 Elsevier Ltd. All rights reserved.
Selection and peer-review under responsibility of Conference Committee Members of Advances in Functional Materials
(Conference 2015).
doi:10.1016/j.matpr.2016.01.086
Advances in Functional Materials (Conference 2015), AFM 2015
Bismuth Telluride based Nanowires for Thermoelectric Power
Generation
I. K. Ng
a,
*, K. Y. Kok
a
, C. Z. Che Abd Rahman
a
, T. F. Choo
a
and N. U. Saidin
a
a
Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor Darul Ehsan, Malaysia
Abstract
In this work, both the binary BiTe and ternary BiSbTe nanowires were synthesized using template-assisted electrodeposition.
Stoichiometric depositions of the nanowires were achieved via systematic study on compositional change as a function of
applied potential. Electrical and thermal transport properties of the nanowires were studied using a custom-designed suspended
micro-electro-thermal system. Thermoelectric test modules constructed from pairs of p- and n-types BiTe based nanowire
arrays thermocouples were demonstrated to produce a power output of ~ 0.36 nW per a pair of P-N thermocouples at a
maximum temperature difference of ~ 50 K.
Copyright © 2014 Elsevier Ltd. All rights reserved.
Selection and peer-review under responsibility of Conference Committee Members of Advances in Functional Materials
(Conference 2015).
Keywords: Thermoelectric nanowires; bismuth telluride, electrodeposition
1. Introduction
The discovery of thermoelectric effect in metal chalcogenides such as Bi2Te3 and its alloys with Sb and Se has led
to the idea of solid-state refrigeration and power generation. These materials have potential applications in waste heat
recovery, air-conditioning and refrigeration. Factors affecting the performance of a thermoelectric material are:
electrical conductivity (σ), thermal conductivity (κ) and Seebeck coefficient (S). These when combined with the
* Corresponding author. Tel.:+60389112000; fax: +60389250907.
E-mail address: ikn1000@nuclearmalaysia.gov.my
© 2016 Elsevier Ltd. All rights reserved.
Selection and peer-review under responsibility of Conference Committee Members of Advances in Functional Materials
(Conference 2015).