Capillary compression induced outstanding n-type thermoelectric power factor in CNT films towards intelligent temperature controller

Hong Wang (), Kuncai Li, Xin Hao, Jiahao Pan, Tiantian Zhuang, Xu Dai, Jing Wang, Bin Chen and Daotong Chong
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Hong Wang: Xi’an Jiaotong University
Kuncai Li: Xi’an Jiaotong University
Xin Hao: Xi’an Jiaotong University
Jiahao Pan: Xi’an Jiaotong University
Tiantian Zhuang: Xi’an Jiaotong University
Xu Dai: Xi’an Jiaotong University
Jing Wang: Xi’an Jiaotong University
Bin Chen: Xi’an Jiaotong University
Daotong Chong: Xi’an Jiaotong University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract One-dimensional carbon nanotubes are promising candidates for thermoelectrics because of their excellent electrical and mechanical properties. However, the large n-type power factor remains elusive in macroscopic carbon nanotubes films. Herein, we report an outstanding n-type power factor of 6.75 mW m−1 K−2 for macroscopic carbon nanotubes films with high electrical and thermal conductivity. A high-power density curl-able thermoelectric generator is fabricated with the obtained carbon nanotubes films, which exhibits a high normalized power output density of 2.75 W m−1 at a temperature difference of 85 K. The value is higher than that of previously reported flexible all-inorganic thermoelectric generators (

Date: 2024
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DOI: 10.1038/s41467-024-50057-x

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