Self Poled, Flexible Piezoelectric Energy Harvester by placing highly charged PDMS-rGO Layer Between P(VDF-TrFE)-PMN-PT Composite Sheets

This study investigates the role of highly charged uniform electrostatic polydimethylsiloxane-reduced graphene oxide (PDMS-rGO) layer in achieving the self-poled piezoelectric energy harvester (PEEH) using P(VDF-TrFE)-PMN-PT composite sheets. To obtain the tri-layer structure the PDMS-rGO layer was sandwiched between two P(VDF-TrFE)-PMN-PT composite sheets using spin coating technique. The output performances of the self-poled tri-layer energy harvester (EH) were observed using finger tapping (~ 2.5 N), the maximum open circuit voltage and short circuit current was measured around 8.5 Vpk-pk and 3 µApk-pk, respectively. Furthermore, the as-fabricated self-poled tri-layer energy harvester (EH) reveals the maximum power density of 6.1 µW/cm². It was estimated that our highly flexible, self-poled PEEH can be a potential candidate for its employment as various futuristic portable electronics.