S.Purushothaman, Aswathy.J, Dr. K.Jeyasubrahmanian and G.S Hikku
In this paper, the fabrication and demonstration of self-powered piezoelectric nanogenerator for converting mechanical energy into electrical energy can be done. The advantage of the piezoelectric nanodevice is that electrical energy can be produced from different types of external stimuli such as including body movement, vibrations, and hydraulic forces or air forces which resulting a wireless self-powered system. The nanogenerator is a five-layer structure: a flexible polymer substrate, ZnO and graphene oxide nanowire textured films of graphene on its top and bottom surfaces. When the nanowires are compressed as a result of movement, the coupling of piezoelectric and semiconducting properties in zinc oxide and graphene oxide creates a strain field across the nanowires as a result of its bending. The successive compression and release resulting the electrons to flow back and forth, producing an electrical current. The principle of nanogenerator shows a new scheme for novel self-powering nanotechnology that harvests electricity from the environment for applications like portable electronics. The feasibility of using ZnO and Graphene oxide nanowire nanogenerators for building self-powered systems with the capability of long distance data transmission in applications such as environmental infrastructures wireless bio- sensing, environmental infrastructure monitoring, sensor networks, national security, and personal electronics.
Nanogenerator, Nanodevice, Nanowires, Piezoelectric, Semiconducting, ZnO, Graphene Oxide