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首页> 外文期刊>Chemical engineering journal >Fabrication of conductive polymer/inorganic nanoparticles composite films: PEDOT:PSS with exfoliated tin selenide nanosheets for polymer-based thermoelectric devices
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Fabrication of conductive polymer/inorganic nanoparticles composite films: PEDOT:PSS with exfoliated tin selenide nanosheets for polymer-based thermoelectric devices

机译：导电聚合物/无机纳米粒子复合膜的制备：PEDOT：PSS与剥离的硒化锡纳米片，用于基于聚合物的热电器件

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摘要

Organic polymer based thermoelectric films consisting of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) with inorganic tin selenide (SnSe) nanosheets were fabricated. Two-dimensional SnSe nanosheets were prepared by Li intercalation and subsequent exfoliation process from the synthesized bulk ingot. Different amounts of SnSe nanosheets were evenly distributed in the PEDOT: PSS matrix, producing various SnSe/PEDOT:PSS composites. The thermal conductivity of the composites was found to be insensitive to the addition of SnSe nanosheets. The power factor of the composite film was greatly enhanced by the addition of an optimal content of SnSe nanosheets, which significantly increased the Seebeck coefficient, and the solvent treatment, which dramatically improved the electrical conductivity. The maximum power factor of 386 mu W/m K-2 was obtained for the 5 vol.% dimethyl sulfoxide (DMSO)-treated SnSe/PEDOT:PSS composite film with 20 wt.% of SnSe nanosheet content, which is similar to 257 times higher than that of the pristine PEDOT:PSS film. The use of conductive PEDOT:PSS matrix mixed with inorganic SnSe nanosheets and the subsequent solvent treatment appear a promising strategy to achieve high-performance polymer-based thermoelectric devices. (C) 2016 Elsevier B.V. All rights reserved.
机译：制备了基于有机聚合物的热电薄膜，该薄膜由聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）和无机硒化锡（SnSe）纳米片组成。通过锂嵌入和随后的剥落过程，从合成的块状锭制备二维SnSe纳米片。不同数量的SnSe纳米片均匀分布在PEDOT：PSS基质中，从而生产出各种SnSe / PEDOT：PSS复合材料。发现复合材料的热导率对添加SnSe纳米片不敏感。通过添加最佳含量的SnSe纳米片（可显着提高塞贝克系数）和溶剂处理（可显着提高电导率），大大提高了复合膜的功率因数。 5％（体积）的二甲亚砜（DMSO）处理的SnSe / PEDOT：PSS复合膜的SnSe纳米片含量为20 wt％，获得的最大功率因数为386μW / m K-2。与257相似是原始PEDOT：PSS膜的三倍。导电PEDOT：PSS基质与无机SnSe纳米片混合使用以及随后的溶剂处理似乎是实现高性能聚合物基热电器件的有前途的策略。 （C）2016 Elsevier B.V.保留所有权利。

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