An effective dual-solvent treatment for improving the thermoelectric property of PEDOT:PSS with white graphene
An effective dual-solvent treatment for improving the thermoelectric property of PEDOT:PSS with white graphene
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一种有效的双溶剂处理方法，可提高白色石墨烯 PEDOT:PSS 的热电性能
DOI：
10.1007/s10853-017-1166-7
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发表时间：
2017-05
影响因子：
4.5
通讯作者：
Xu Jingkun
中科院分区：
文献类型：
--
作者：
Wang Xiaodong;Meng Fanling;Tang Haitong;Gao Zhongmin;Li Si;Jiang Fengxing;Xu Jingkun
提出了一种将双溶剂处理和复合相结合的有效策略来提高聚（3，4-乙撑二氧噻吩）：聚（4-苯乙烯磺酸盐）（PEDOT：PSS）的热电性能。首先，首次提出了一种二维氮化硼纳米片（BNNSs）复合方法，即白色石墨烯，利用结合处的能量过滤效应提高PEDOT：PSS薄膜的Seebeck系数。BNNSs通过简易的液体剥离方法获得。此外，双溶剂处理纳入N，N-二甲基甲酰胺（DMF）和二甲亚砜（DMSO）进行优化PEDOT：PSS/BNNSs杂化薄膜的导电性。一方面，DMF作为第一处理可以有效地去除部分多余的非导电PSS，导致电导率增加。另一方面，DMSO作为第二处理诱导PEDOT从苯并型结构转变为醌型结构，导致PEDOT：PSS/BNNSs的电导率进一步增强而不降低塞贝克系数。最终，在室温下，PEDOT：PSS/BNNSs 5杂化薄膜的热电功率因数显著提高至100.1 μW m−1 K−2，大品质因数（ZT）估计为0.12。
An effective strategy combining dual-solvent treatment and composite has been proposed to improve the thermoelectric property of poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS). Firstly, a composite method with two-dimensional (2D) boron nitride nanosheets (BNNSs), also known as white graphene, was first proposed to improve the Seebeck coefficient of PEDOT:PSS thin film based on an energy filtering effect at the conjunctions. BNNSs were obtained by a facile liquid exfoliation method. Further, a dual-solvent treatment incorporating N,N-dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) was performed to optimize the electrical conductivity of PEDOT:PSS/BNNSs hybrid thin films. On the one hand, DMF as first treatment can effectively remove part of the redundant non-conductive PSS leading to an increased electrical conductivity. On the other hand, DMSO as second treatment induced a transformation of PEDOT from benzoid to quinoid structure, resulting in a further enhanced electrical conductivity without a reduction in Seebeck coefficient for PEDOT:PSS/BNNSs. Eventually, a remarkable improvement in thermoelectric power factor was achieved to be 100.1 μW m−1 K−2 and a large figure of merit (ZT) was estimated to be 0.12 for PEDOT:PSS/BNNSs5 hybrid thin film at room temperature.
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影响因子：
4.4
作者：
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通讯作者：
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影响因子：
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作者：
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作者：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1021/jp804621v
发表时间：
2008-10
期刊：
The journal of physical chemistry. B
影响因子：
--
作者：
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通讯作者：
C. Yang;Sean Li