Enhancing thermoelectric performance of Bi2Te3-based nanostructures through rational structure design
Article
Article Title | Enhancing thermoelectric performance of Bi2Te3-based nanostructures through rational structure design |
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ERA Journal ID | 41997 |
Article Category | Article |
Authors | Hong, Min (Author), Chen, Zhi-Gang (Author), Yang, Lei (Author) and Zou, Jin (Author) |
Journal Title | Nanoscale |
Journal Citation | 8 (16), pp. 8681-8686 |
Number of Pages | 6 |
Year | 2016 |
Publisher | The Royal Society of Chemistry |
Place of Publication | United Kingdom |
ISSN | 2040-3364 |
2040-3372 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/c6nr00719h |
Web Address (URL) | http://pubs.rsc.org/en/Content/ArticleLanding/2016/NR/C6NR00719H#!divAbstract |
Abstract | Nanostructuring has been successfully employed to enhance the thermoelectric performance of Bi2Te3 due to its obtained low thermal conductivity. In order to further reduce the thermal conductivity, we designed a hierarchical nanostructure assembled with well-aligned Bi2Te3 nanoplates using Te nanotubes as templates by a facile microwave-assisted solvothermal synthesis. From the comparisons of their thermoelectric performance and theoretical calculations with simple Bi2Te3 nanostructures, we found that Te/Bi2Te3 hierarchical nanostructures exhibit a higher figure-of-merit due to the optimized reduced Fermi level and enhanced phonon scattering, as well as the suppressed bipolar conduction. This study provides an effective approach to enhance the thermoelectric performance of Bi2Te3-based nanostructures by rationally designing the nanostructures. |
Keywords | nanostructuring; thermoelectric performance; Bi2Te3; thermal conductivity |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Queensland |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q414w/enhancing-thermoelectric-performance-of-bi2te3-based-nanostructures-through-rational-structure-design
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