Fundamental and progress of Bi2Te3-based thermoelectric materials
Article
Article Title | Fundamental and progress of Bi2Te3-based thermoelectric materials |
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ERA Journal ID | 941 |
Article Category | Article |
Authors | Hong, Min (Author), Chen, Zhigang (Author) and Zou, Jin (Author) |
Journal Title | Chinese Physics B |
Journal Citation | 27 (4), pp. 1-25 |
Number of Pages | 25 |
Year | 2018 |
Place of Publication | United Kingdom |
ISSN | 1000-3290 |
1674-1056 | |
1741-4199 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1674-1056/27/4/048403 |
Web Address (URL) | http://iopscience.iop.org/article/10.1088/1674-1056/27/4/048403/meta |
Abstract | Thermoelectric materials, enabling the directing conversion between heat and electricity, are one of the promising candidates for overcoming environmental pollution and the upcoming energy shortage caused by the over-consumption of fossil fuels. Bi2Te3-based alloys are the classical thermoelectric materials working near room temperature. Due to the intensive theoretical investigations and experimental demonstrations, significant progress has been achieved to enhance the thermoelectric performance of Bi2Te3-based thermoelectric materials. In this review, we first explored the fundamentals of thermoelectric effect and derived the equations for thermoelectric properties. On this basis, we studied the effect of material parameters on thermoelectric properties. Then, we analyzed the features of Bi2Te3-based thermoelectric materials, including the lattice defects, anisotropic behavior and the strong bipolar conduction at relatively high temperature. Then we accordingly summarized the strategies for enhancing the thermoelectric performance, including point defect engineering, texture alignment, and band gap enlargement. Moreover, we highlighted the progress in decreasing thermal conductivity using nanostructures fabricated by solution grown method, ball milling, and melt spinning. Lastly, we employed modeling analysis to uncover the principles of anisotropy behavior and the achieved enhancement in Bi2Te3, which will enlighten the enhancement of thermoelectric performance in broader materials. |
Keywords | thermoelectric; Bi2Te3-based alloys; electron transports; phonon scatterings |
ANZSRC Field of Research 2020 | 401605. Functional materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Future Materials |
University of Queensland | |
Institution of Origin | University of Southern Queensland |
Funding source | Australian Research Council (ARC) |
https://research.usq.edu.au/item/q4qy4/fundamental-and-progress-of-bi2te3-based-thermoelectric-materials
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