Recent Advances and Prospects of Small Molecular Organic Thermoelectric Materials

Thermoelectric (TE) materials possess unique energy conversion capabilities between heat and electrical energy. Small organic semiconductors have aroused widespread attention for the fabrication of TE devices due to their advantages of low toxicity, large area, light weight, and easy fabrication. Ho...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2022-06, Vol.18 (23), p.e2200679-n/a
Main Authors: Zhou, Dan, Zhang, Hehui, Zheng, Haolan, Xu, Zhentian, Xu, Haitao, Guo, Huilong, Li, Peining, Tong, Yongfen, Hu, Bin, Chen, Lie
Format: Article
Language:English
Subjects:
chemical doping
Design modifications
Electricity
Energy conversion
Hot Temperature
Nanotechnology
Optimization
Organic semiconductors
organic thermoelectric materials
Power factor
Semiconductors
thermoelectric effect
Thermoelectric materials
thermoelectric parameters
Toxicity
Weight reduction
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Summary:Thermoelectric (TE) materials possess unique energy conversion capabilities between heat and electrical energy. Small organic semiconductors have aroused widespread attention for the fabrication of TE devices due to their advantages of low toxicity, large area, light weight, and easy fabrication. However, the low TE properties hinder their large‐scale commercial application. Herein, the basic knowledge about TE materials, including parameters affecting the TE performance and the remaining challenges of the organic thermoelectric (OTE) materials, are initially summarized in detail. Second, the optimization strategies of power factor, including the selection and design of dopants and structural modification of the dope‐host are introduced. Third, some achievements of p‐ and n‐type small molecular OTE materials are highlighted to briefly provide their future developing trend; finally, insights on the future development of OTE materials are also provided in this study. Thermoelectric (TE) materials possess unique energy conversion capabilities between heat and electrical energy. However, the low TE properties hinder their large‐scale commercial application. Hence, the basic knowledge about TE materials, including parameters affecting the TE performance and the remaining challenges of the organic thermoelectric materials, are initially summarized in detail.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.202200679