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, a ring‐like film with interconnected networks that prefers high conductivity can be prepared due to coffee ring effect. Such special morphology enable this conductive film to serve as promising electrodes for touch sensor with gradient pressure sensitivity.