Abstract
We report the micropatterning of conducting polymer on the epoxy-based photoresist to demonstrate fully organic, conducting and flexible electrodes. We show that polystyrene sulfonic acid can be covalently linked to the surface of the photoresist (SU-8) by forming sulfonyl ester at the interfaces. We also present an application of the patterned PEDOT:PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate)/SU-8 to the electroplating of metal electrodes.
[Display omitted]
•Formation of a strong chemical bonding between PEDOT:PSS and SU-8 is proposed.•Sulfonic acid functional groups in PSS react with epoxides in SU-8 and form sulfonyl ester.•An application of the patterned PEDOT:PSS/SU-8 to the electroplating of metal electrodes is presented.