Energy harvesting efficiency of piezoelectric polymer film with graphene and metal electrodes.

ABSTRACT: In this study, we investigated an energy harvesting effect of tensile stress using piezoelectric polymers and flexible electrodes. A chemical-vapor-deposition grown graphene film was transferred onto both sides of the PVDF and P(VDF-TrFE) films simultaneously by means of a conventional wet chemical method. Output voltage induced by sound waves was measured and analyzed when a mechanical tension was applied to the device. Another energy harvester was made with a metallic electrode, where Al and Ag were deposited by using an electron-beam evaporator. When acoustic vibrations (105 dB) were applied to the graphene/PVDF/graphene device, an induced voltage of 7.6 V_pp was measured with a tensile stress of 1.75 MPa, and this was increased up to 9.1 V_pp with a stress of 2.18 M

SUBMITTER: Park S 

PROVIDER: S-EPMC5725581 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature