PEDOTs

Poly(3,4-ethylenedioxythiophene), commonly known as PEDOT, is a conducting polymer with a range of applications in electronics and energy storage. It is synthesized through the oxidative polymerization of its monomer, 3,4-ethylenedioxythiophene. PEDOT is recognized for its high electrical conductivity, good optical transparency in its doped state, and excellent environmental stability. These properties make it a versatile material for various technological uses.

The conductivity of PEDOT is achieved through doping, typically with polyanions like polystyrene sulfonate (PSS). This doping process introduces charge carriers into the polymer backbone, enabling electrical current flow. PEDOT:PSS is the most widely studied and commercially available form of PEDOT, often processed from aqueous dispersions. Its ability to form thin, flexible films has led to its use in organic light-emitting diodes (OLEDs) as a hole injection or transport layer. It also finds application in organic photovoltaics (OPVs), antistatic coatings, and as an electrode material in supercapacitors and batteries.

Research continues to explore variations of PEDOT and its composites to further enhance its performance and expand its application range. Modifications to the polymer structure or the doping process aim to improve conductivity, processability, and specific functionalities for emerging technologies.