Affiliation:
1. School of Material Science and Engineering,
Wuhan Institute of Technology, Wuhan 430205, People’s Republic of China.
2. Department of Materials Science and Engineering,
City University of Hong Kong, Hong Kong 999077, China.
Abstract
Simultaneously improving electrical conductivity and Seebeck coefficient of carbon nanotubes to enhance their thermoelectric properties still poses substantial challenges. To enhance the thermoelectric properties of single-walled carbon nanotubes (SWCNTs), a physical blending method is employed to fabricate aniline tetramer nanowires/SWCNTs films (ANIT-NW/SWCNTs) by a simple blend of ANIT-NW and SWCNTs. The intertwining of ANIT-NW and SWCNTs creates a dense 3-dimensional network structure, establishing tight connections between SWCNTs bundles and ANIT-NW. The incorporation of ANIT-NW yields simultaneous enhancements in electrical conductivity and Seebeck coefficient, which is achieved by markedly increasing carrier mobility and reducing carrier concentration, respectively. The resulting power factor (
PF
) of ANIT-NW/SWCNTs reaches an impressive value of 146.7 μW·m
−1
·K
−2
. Furthermore, by utilizing ANIT-NW/SWCNTs as p-type legs and polyethyleneimine/SWCNTs as n-type legs, a thermoelectric module comprising 5 pairs of legs is constructed. This module exhibits an open-circuit voltage of 22 mV and an output power of 2.94 μW when subjected to a temperature difference of 50 K, while being loaded with a 60-Ω resistor. Therefore, these findings demonstrate the potential applications of ANIT-NW/SWCNTs films for flexible thermoelectric materials.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献