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Solution-based synthesis of PEDOT:PSS films with electrical conductivity over 6300 S/cm
Yanbin Shi,Yuqin Zhou,Rongzong Shen,Fengzhen Liu,Yurong Zhou 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.101 No.-
Poly(3,4-ethylenedioxythiophene) mixed with poly (styrenesulfonate) (PEDOT:PSS) is considered as oneof the most valuable conductive polymers due to its high conductivity, transparency and mechanicalflexibility. Many experiments have proved that H2SO4 post-treatment is an effective way to enhance theelectrical conductivity of PEDOT:PSSfilms. Here we reported a method for the fabrication of PEDOT:PSSfilms with conductivity as high as 6323.9 364.5 S/cm, based on a two-step H2SO4 post-treatment. Thisvery high conductivity is, as far as we know, the highest reported value for PEDOT:PSSfilms by solutionpreparation. The removal of PSS and redox reaction are the keys to enhance the conductivity of PEDOT:PSSfilms.