Issue

Vol. 13 (2021)

Bottom-Up Engineering Strategies for High-Performance Thermoelectric Materials

https://doi.org/10.1007/s40820-021-00637-z
Qiang Zhu
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore
Suxi Wang
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore
Xizu Wang
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore
Ady Suwardi
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore
Ming Hui Chua
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore
Xiang Yun Debbie Soo
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore
Jianwei Xu
Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, #08‑03, Singapore 138634, Singapore

Corresponding Author: Jianwei Xu

jw-xu@imre.a-star.edu.sg

Nano-Micro Letters, Vol. 13 (2021), Article Number: 119

Abstract

The recent advancements in thermoelectric materials are largely credited to two factors, namely established physical theories and advanced materials engineering methods. The developments in the physical theories have come a long way from the “phonon glass electron crystal” paradigm to the more recent band convergence and nanostructuring, which consequently results in drastic improvement in the thermoelectric figure of merit value. On the other hand, the progresses in materials fabrication methods and processing technologies have enabled the discovery of new physical mechanisms, hence further facilitating the emergence of high-performance thermoelectric materials. In recent years, many comprehensive review articles are focused on various aspects of thermoelectrics ranging from thermoelectric materials, physical mechanisms and materials process techniques in particular with emphasis on solid state reactions. While bottom-up approaches to obtain thermoelectric materials have widely been employed in thermoelectrics, comprehensive reviews on summarizing such methods are still rare. In this review, we will outline a variety of bottom-up strategies for preparing high-performance thermoelectric materials. In addition, state-of-art, challenges and future opportunities in this domain will be commented.


Highlights:


1 Recent advances of various bottom-up approaches for constructing nanostructured semiconductor thermoelectric materials with different dimensions are reviewed.
2 The relationships between the nanostructures and the key electronic and thermal transport parameters contributing to ZT are discussed.
3 The challenges of the bottom-up strategies and suggestions for future development toward thermoelectric applications are provided.

Keywords

Thermoelectric Nanostructures Bottom-up Synthesis Nanomaterials
Zhu, Qiang, Suxi Wang, Xizu Wang, Ady Suwardi, Ming Hui Chua, Xiang Yun Debbie Soo, and Jianwei Xu. 2021. “Bottom-Up Engineering Strategies for High-Performance Thermoelectric Materials”. Nano-Micro Letters 13 (May):119. https://doi.org/10.1007/s40820-021-00637-z.
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