Research progress on the modification of organic highly conductive polymer PEDOT: PSS

Abstract

PEDOT: PSS (poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonic acid)) is a high-profile organic conductive polymer, which is widely used because of its excellent conductivity and stability. The application of PEDOT: PSS is of great significance in the fields of energy, electronics, medical treatment and the environment. It offers an efficient, transparent, flexible, and environmentally friendly material option that drives various innovations and advancements. However, the traditional PEDOT: PSS can no longer meet the high requirements of today's electronic devices. Therefore, changing the conductivity, ductility and other properties of PEDOT: PSS through various physical and chemical methods has become an important topic. This paper reviews the progress of effectively improving the conductivity of PEDOT: PSS by reviewing PSS doping optimization, solvent doping modification (inorganic acid, organic reagent), and nanomaterial modification (CNTs, Graphene), so as to provide researchers with directions. Overall, PEDOT: PSS, as a material with excellent performance and wide application potential, has broad prospects for its application. With the continuous demand for flexible electronics, renewable energy, smart optoelectronic devices and biomedical applications, PEDOT: PSS will play an important role in these fields and promote the further development and innovation of related technologies.