Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments

Liu，Yuan Meng1; Shi，Xiao Lei2; Wu，Ting1; Wu，Hao1; Mao，Yuanqing2,3,4; Cao，Tianyi2; Wang，De Zhuang1; Liu，Wei Di2; Li，Meng2; Liu，Qingfeng1; Chen，Zhi Gang2

2024-12-01

10.1038/s41467-024-47417-y

Nature Communications   影响因子和分区

2041-1723

Single-walled carbon nanotubes (SWCNTs)-based thermoelectric materials, valued for their flexibility, lightweight, and cost-effectiveness, show promise for wearable thermoelectric devices. However, their thermoelectric performance requires significant enhancement for practical applications. To achieve this goal, in this work, we introduce rational “triple treatments” to improve the overall performance of flexible SWCNT-based films, achieving a high power factor of 20.29 µW cm K at room temperature. Ultrasonic dispersion enhances the conductivity, NaBH treatment reduces defects and enhances the Seebeck coefficient, and cold pressing significantly densifies the SWCNT films while preserving the high Seebeck coefficient. Also, bending tests confirm structural stability and exceptional flexibility, and a six-legged flexible device demonstrates a maximum power density of 2996 μW cm at a 40 K temperature difference, showing great application potential. This advancement positions SWCNT films as promising flexible thermoelectric materials, providing insights into high-performance carbon-based thermoelectrics.

SCI

英语

其他

2-s2.0-85191074382

Scopus

1.State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing,China
2.School of Chemistry and Physics,ARC Research Hub in Zero-emission Power Generation for Carbon Neutrality,and Centre for Materials Science,Queensland University of Technology,Brisbane,Australia
3.School of Mechanical and Mining Engineering,The University of Queensland,Brisbane,Australia
4.Department of Physics and Guangdong Provincial Key Laboratory of Computational Science and Material Design,Southern University of Science and Technology,Shenzhen,China

Liu，Yuan Meng,Shi，Xiao Lei,Wu，Ting,et al. Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments[J]. Nature Communications,2024,15(1).

Liu，Yuan Meng.,Shi，Xiao Lei.,Wu，Ting.,Wu，Hao.,Mao，Yuanqing.,...&Chen，Zhi Gang.(2024).Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments.Nature Communications,15(1).

Liu，Yuan Meng,et al."Boosting thermoelectric performance of single-walled carbon nanotubes-based films through rational triple treatments".Nature Communications 15.1(2024).