An Efficiently Doped PEDOT:PSS Ink Formulation via Metastable Liquid−Liquid Contact for Capillary Flow‐Driven, Hierarchically and Highly Conductive Films (Small 15/2023)

Capacitive Pressure Sensors In article number 2205324, Guorong Shan, Miao Du, and co-workers develop a method of liquid-liquid interface contact (MLLC) to pretreat the pristine poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) solutions. By dripping this resultant ink, ring-like film with interconnected networks that prefers high conductivity can be prepared due coffee ring effect. Such special morphology enable conductive serve as promising electrodes for touch sensor gradient pressure sensitivity.