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https://doi.org/10.3389/fphy.2021.755597
Title: | Physical Intuition to Improve Electronic Properties of Thermoelectrics | Authors: | Lim, Wei Yang Samuel Zhang, Danwei Duran, Solco Samantha Faye Tan, Xian Yi Tan, Chee Kiang Ivan Xu, Jianwei Suwardi, Ady |
Keywords: | electronic transport energy harvesting semiconductor thermal transport thermoelectrics |
Issue Date: | 29-Nov-2021 | Publisher: | Frontiers Media S.A. | Citation: | Lim, Wei Yang Samuel, Zhang, Danwei, Duran, Solco Samantha Faye, Tan, Xian Yi, Tan, Chee Kiang Ivan, Xu, Jianwei, Suwardi, Ady (2021-11-29). Physical Intuition to Improve Electronic Properties of Thermoelectrics. Frontiers in Physics 9 : 755597. ScholarBank@NUS Repository. https://doi.org/10.3389/fphy.2021.755597 | Rights: | Attribution 4.0 International | Abstract: | Thermoelectrics convert heat to electricity and vice versa. They are of technological importance in cooling and energy harvesting. Their performances are defined by figure of merit, zT. Decades of studies have largely focused on the development of novel and advanced materials reaching higher performance in devices. To date, the lack of sufficiently high-performance thermoelectrics, especially among Earth-abundant and lightweight materials, is one of the reasons why there is no broad commercial application of thermoelectric devices yet. This challenge is due to the complex correlations of parameters that make up the zT. Theoretical estimation can reveal the optimal charge carrier concentration, which can provide a good idea of doping compositions. Depending on the material characteristics, decoupling these intercorrelated parameters could be viable. Broadly speaking, increasing carrier mobility, inducing a large fluctuation in density of states (DOS) at the Fermi level, and lowering the lattice thermal conductivity lead to better thermoelectric performance. In this mini review, we provide a broad picture of electronic property optimization for thermoelectric materials. This work will be a useful guide to quickly take readers to the forefront of thermoelectric research. Copyright © 2021 Lim, Zhang, Duran, Tan, Tan, Xu and Suwardi. | Source Title: | Frontiers in Physics | URI: | https://scholarbank.nus.edu.sg/handle/10635/231983 | ISSN: | 2296-424X | DOI: | 10.3389/fphy.2021.755597 | Rights: | Attribution 4.0 International |
Appears in Collections: | Staff Publications Elements |
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