Simulated potential distribution of PC-TENG. (a) The comprehensive contact between the copper electrode and the PDMS, a transfer of charge is initiated; (b) As the two entities commence their separation, an electromotive force is engendered between the superior and inferior electrodes; (c) At the juncture when the separation distance attains its zenith, the potential difference similarly reaches its pinnacle; (d) As the separation distance incrementally diminishes from its peak, the potential difference correspondingly wanes.