随着能源危机和环境污染问题的日益严峻,近年来热电材料的研究越来越受到人们的关注.聚(3,4-乙撑二氧噻吩)∶聚苯乙烯磺酸(PEDOT∶PSS)被认为是热电性能最好的有机热电材料之一.PEDOT∶PSS具备好的成膜性、高的透明性、优异的电导可控性以及热稳定性.系统地综述了提高PEDOT∶PSS电导率的一些物理、化学方法,探讨了其电导率增强的机理以及介绍了其目前最新的应用情况.预期未来具有高电导率和高透明性的PEDOT∶PSS薄膜材料的研究将得到突破性发展.
With the energy crisis and the increasingly severe environmental pollution problems, research for thermoelectric(TE) materials have provoke wide attention in recent years.Among organic TE materials, poly(3,4-ethylenedioxythiophene)∶poly(styrenesulfonate) (PEDOT∶PSS) is considered as the one of the best organic TE materials.It has good film forming properties, high transparency, excellent tunable conductivity and thermal stability.In this paper, various physical and chemical approaches that can effectively improve the electrical conductivity of PEDOT∶PSS are summarized, focusing especially on the mechanism of the conductivity enhancement as well as applications of PEDOT∶PSS flms.It is expected that future research of highly conductive and transparent PEDOT∶PSS films can be developed greatly.
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