Fig. 2: The structure and characterizations of the CPS.
a Equivalent circuit diagram of the SOTS (ACELw denotes the working ACEL unit, while ACELr refers to the reference ACEL unit). b Schematic of the structure and composition of the CPS. c The fabrication process of the CPS to achieve a strong interlayer bond. d SEM image of the interface between the dielectric layer and the PDMS/MWCNTs electrode, demonstrating the close connection between them. e Variation of capacitance over the pressure range up to 100 kPa. f Sensing response and recovery stability under different pressures. g Limit of the detection. h Working stability tested over 1200 cycles under 72 kPa.
