A facile synthetic route for well defined multilayer films of graphene and PEDOT via an electrochemical method

Thin multilayer graphene/PEDOT films were prepared by electrochemical deposition. PEDOT was deposited on gold electrodes by cyclic voltammetry, and p-doped graphene, which was synthesised from expanded and p-doped graphite, was assembled on the PEDOT-coated electrode by chronoamperometry at 1 V. The...

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Bibliographic Details
Main Authors: Lee, Soojeong, Cho, Mi Suk, Lee, Hyuck, Nam, Jae-Do, Lee, Youngkwan
Format: Article
Language:English
Online Access:Get full text
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Summary:Thin multilayer graphene/PEDOT films were prepared by electrochemical deposition. PEDOT was deposited on gold electrodes by cyclic voltammetry, and p-doped graphene, which was synthesised from expanded and p-doped graphite, was assembled on the PEDOT-coated electrode by chronoamperometry at 1 V. The process was repeated as necessary to obtain the desired number of multilayers. Successful deposition of graphene/PEDOT layers was demonstrated by SEM. The maximum specific capacitance of the multilayer film was 154 F g 1 for six graphene layers. Further, the multilayer film exhibited improved electrochemical stability with a retention life of 86% after 1000 cycles. The graphene and PEDOT layers were electrodeposited alternately. The binder-free multilayer electrode with 6 graphene layers reached 2.7 times higher capacitance than that of PEDOT films.
ISSN:0959-9428
1364-5501
DOI:10.1039/c1jm13739e