Key points are not available for this paper at this time.
Abstract Thick, uniform, easily processed, highly conductive polymer films are desirable as electrodes for solar cells as well as polymer capacitors. Here, a novel scalable strategy is developed to prepare highly conductive thick poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (HCT‐PEDOT:PSS) films with layered structure that display a conductivity of 1400 S cm −1 and a low sheet resistance of 0.59 ohm sq −1 . Organic solar cells with laminated HCT‐PEDOT:PSS exhibit a performance comparable to the reference devices with vacuum‐deposited Ag top electrodes. More importantly, the HCT‐PEDOT:PSS film delivers a specific capacitance of 120 F g −1 at a current density of 0.4 A g −1 . All‐solid‐state flexible symmetric supercapacitors with the HCT‐PEDOT:PSS films display a high volumetric energy density of 6.80 mWh cm −3 at a power density of 100 mW cm −3 and 3.15 mWh cm −3 at a very high power density of 16160 mW cm −3 that outperforms previous reported solid‐state supercapacitors based on PEDOT materials.
Li et al. (Wed,) studied this question.