Article ID Journal Published Year Pages File Type
820408 Composites Science and Technology 2013 7 Pages PDF
Abstract

This paper presents a poly(3,4-ethylenedioxythiophene)–SiO2 hybrid conductive film with enhanced physicochemical properties such as surface hardness, solvent mechanical wear resistance, and resistance to scratch prepared via co-vaporization and simultaneous polymerization of 3,4-ethylenedioxythiophene (EDOT) and tetraethyl orthosilicate (TEOS) on a ferric p-toluenesulfonate (FTS) coated substrate. Moreover, the conductivity of the fabricated PEDOT–SiO2 hybrid films is much higher than that of a pristine PEDOT film due to a surface smoothness effect endowed by the SiO2 component in the hybrid film. Si content in the hybrid film obviously increased with FTS concentration, which can act as a catalyst for hydrolysis/condensation of TEOS. The demonstrated methodology for preparing poly(3,4-ethylenedioxythiophene)–SiO2 hybrid composite films by co-vaporization/simultaneous polymerization has strong potential for the preparation of highly mechanically robust conductive thin films.

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