Supercapacitive Multimode Sensing with Tunable Graphene Sheet Film Electrodes (Adv. Mater. Technol. 1/2025)

Supercapacitive Multimode Sensing In article number 2400644, Zhenyu Xue, Dihua Wu, Yangxin Zhou, and co-workers present a graphene sheet film, with its ability to be patterned, that spontaneously detaches from the filter membrane following vacuum filtration, which allows nondestructive transfer and integration of the graphene sheet film into a thin film supercapacitor as electrodes. The film's porous structure endows the device with the capacity for capacitive strain sensing. Together with its ionotropic temperature sensing capability due to the solid electrolyte layer, this dual functionality empowers the thin film supercapacitor to achieve multimode sensing in a single device.