A facile micropatterning method for a highly flexible PEDOT:PSS on SU-8

• 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.

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.

Figure optionsDownload as PowerPoint slide