Coupling Electronic and Phonon Thermal Transport in Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) Nanofibers.
Coupling Electronic and Phonon Thermal Transport in Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) Nanofibers.
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聚(3,4-乙撑二氧噻吩)-聚(苯乙烯磺酸盐)纳米纤维中电子与声子热传输的耦合
DOI:
10.3390/nano12081282
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发表时间:
2022-04-09
期刊:
影响因子:
5.3
通讯作者:
Xu, Xiangfan
中科院分区:
文献类型:
--
作者:
Dong, Lan;Bao, Chengpeng;Hu, Shiqian;Wang, Yuanyuan;Wu, Zihua;Xie, Huaqing;Xu, Xiangfan
关键词:
The thermal transport of Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) nanofiber is contributed by the electronic component of thermal conduction and the phonon component of thermal conduction. The relationship between the electrical conductivity and thermal conductivity of these conducting polymers is of great interest in thermoelectric energy conversation. In this work, we characterized the axial electrical conductivities and thermal conductivities of the single PEDOT:PSS nanofibers and found that the Lorenz number L is larger than Sommerfeld value L0 at 300 K. In addition, we found that the L increased significantly in the low-temperature region. We consider that this trend is due to the bipolar contribution of conducting polymers with low-level electrical conductivity and the increasing trend of the electronic contribution to thermal conductivity in low-temperature regions.
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