Halide Perovskite Precursors Dope PEDOT:PSS (Adv. Electron. Mater. 9/2021)

Influence of protonic acid on the structure and properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) in oxidation polymerization

“…Poly(3,4-ethylenedioxythiophene) (PEDOT) is widely used in energy storage, sensors, coatings, organic effect transistors, photovoltaic cells, and OLED devices due to its outstanding electrical conductivity, excellent environmental stability, and high transmittance in the visible range. 1–10 However, the application of PEDOT is limited because it is insoluble, infusible, and difficult to process. In order to solve this problem, water-soluble polystyrene sulfonate (PSS) was used as the dispersant and counterion dopant of PEDOT in water, 11,12 and PEDOT:PSS dispersions with excellent film-forming properties were synthesized.…”