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Chin. Phys. B, 2021, Vol. 30(7): 078801    DOI: 10.1088/1674-1056/abff33

Highly flexible and excellent performance continuous carbon nanotube fibrous thermoelectric modules for diversified applications

Xiao-Gang Xia(夏晓刚)1,2, Qiang Zhang(张强)3, Wen-Bin Zhou(周文斌)4, Zhuo-Jian Xiao(肖卓建)1,2, Wei Xi(席薇)1,2, Yan-Chun Wang(王艳春)1,6, and Wei-Ya Zhou(周维亚)1,2,5,6,†
1 Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076 Aalto, Finland;
4 Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;
5 Songshan Lake Materials Laboratory, Dongguan 523808, China;
6 Beijing Key Laboratory for Advanced Functional Materials and Structure Research, Beijing 100190, China
Abstract  A highly flexible and continuous fibrous thermoelectric (TE) module with high-performance has been fabricated based on an ultra-long single-walled carbon nanotube fiber, which effectively avoids the drawbacks of traditional inorganic TE based modules. The maximum output power density of a 1-cm long fibrous TE module with 8 p-n pairs can reach to 3436 μW·cm-2, the power per unit weight to 2034 μW·g-1, at a steady-state temperature difference of 50 K. The continuous fibrous TE module is used to detect temperature change of a single point, which exhibits a good responsiveness and excellent stability. Because of its adjustability in length, the flexible fibrous TE module can satisfy the transformation of the temperature difference between two distant heat sources into electrical energy. Based on the signal of the as-fabricated TE module, a multi-region recognizer has been designed and demonstrated. The highly flexible and continuous fibrous TE module with excellent performance shows a great potential in diversified applications of TE generation, temperature detection, and position identification.
Keywords:  carbon nanotube fiber      power density      fibrous thermoelectric module  
Received:  13 April 2021      Revised:  13 April 2021      Accepted manuscript online:  08 May 2021
PACS:  88.30.rh (Carbon nanotubes)  
  73.50.Lw (Thermoelectric effects)  
  85.80.Fi (Thermoelectric devices)  
Fund: Project supported by the National Key Research and Development Program of China (Grant No. 2018YFA0208402), the National Natural Science Foundation of China (Grant Nos. 11634014, 51172271, and 51372269), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA09040202).
Corresponding Authors:  Wei-Ya Zhou     E-mail:

Cite this article: 

Xiao-Gang Xia(夏晓刚), Qiang Zhang(张强), Wen-Bin Zhou(周文斌), Zhuo-Jian Xiao(肖卓建), Wei Xi(席薇), Yan-Chun Wang(王艳春), and Wei-Ya Zhou(周维亚) Highly flexible and excellent performance continuous carbon nanotube fibrous thermoelectric modules for diversified applications 2021 Chin. Phys. B 30 078801

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