Fig. 7: Schematic illustration of the working mechanism of the siloxene SCSPC device.

a The initial state of the siloxene SCSPC device with no applied compressive force. b With an applied compressive force to the siloxene SCSPC device, the siloxene/PVDF creates a piezoelectric potential that drives the electrolyte ions towards the electrode surface. c An equilibrium state has been reached between the piezoelectric potential created and the electrochemical reaction of the siloxene SCSPC device. d State of siloxene SCSPC when the compressive force is stopped, i.e., the disappearance of piezoelectric potential and leads to attaining the equilibrium state. e State of siloxene SCSPC after completion of one self-charging cycle.