Developing stable and solution-processable highly conductive polymers has been the research goal in organic electronics since the first demonstration of metallic conductive polyacetylene. Here, we used a unique quinoid-resonant building block thieno[3,4-b]thiophene (TbT) to develop a new water-dispersible conducting polymer, PTbT-Me:PSS. Linear polymerization and large surfactant counterion, poly(styrenesulfonate) (PSS⁻), were introduced, which enabled a high electrical conductivity of 68 S cm⁻¹ and exhibited water-dispersible property. Interchain bipolaron was found in PTbT-Me:PSS when compared with polaron in PEDOT:PSS in their conducting mechanism. Moreover, we applied this highly conductive PTbT-Me:PSS as the solution-processed polymer thermoelectric material and a decent power factor of 3.1 μW m⁻¹ K⁻² was achieved.

自从首次展示金属导电聚乙炔以来，开发稳定且可溶液加工的高导电聚合物一直是有机电子领域的研究目标。在这里，我们使用了独特的醌类共振分子噻吩并[3,4- b ]噻吩（T b T）来开发一种新型的水分散性导电聚合物PT b T-Me：PSS。线性聚合和表面活性剂大抗衡离子，聚（苯乙烯磺酸盐）（PSS ^- ），进行了介绍，这使第68号第cm的高导电性^-1和展出水分散性。在PT b中发现了链间双极子T-Me：PSS与极化子在PEDOT：PSS中的传导机理相比。此外，我们将这种高导电性的PT b T-Me：PSS用作溶液处理的聚合物热电材料，并实现了3.1μWm ^-1 K ^-2的体面功率因数。