Electrochemical Assembling of Functionalized PEDOT Thin Films with Excellent Electroactivity and Superhydrophobicity

Abstract

We synthesized dodecyloxymethyl functionalized EDOT monomers and fabricated homogeneous thin films via cycle voltammetry electrochemical deposition method on platinum and ITO substrates. The PEDOT-C12 thin films showed good electrochemical activity. Meanwhile, by increasing the cyclic voltage-scan number during electrochemical deposition process, the surface roughness was also enhanced. The large surface roughness and occurrence of micro-nano surface morphologies would lead to higher water contact angles for the PEDOT-C12 thin films. The water contact angle for the PEDOT-C12 thin films with 10 deposition cyclic voltage-scans was 160° and showed superhydrophobicity. The achieved superhydrophobic PEDOT-C12 thin films would have potential applications in corrosion protecting for metal electrodes in aqueous environment.