(537h) Potassium Sodium Niobate Based Combined Mode Piezo-Tribo Hybrid Nanogenerator

Piezoelectric and Triboelectric nanogenerators have attained the focus of scientific community due to its ability to convert mechanical energy into usable form of electrical energy which can be used for multipurpose application. In this study, a combined mode Piezo-Tribo Hybrid Nanogenerator has been reported which includes Potassium Sodium Niobate (KNN) based composite including Polyvinylidene Difluoride (PVDF) and Multi Wall Carbon Nanotube (MWCNT) for the Piezoelectric part and Aluminum and Polytetrafluoroethylene (PTFE) induced Polydimethylsiloxane (PDMS) polymer composite as the Triboelectric part. The materials were characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) techniques. The cylindrical wire like surface of the triboelectric part enables this nanogenerator to operate as a combined mode triboelectric nanogenerator which provided higher triboelectric effect compared to a Vertical mode triboelectric nanogenerator constructed with the same materials. Besides, the piezoelectric layers were tested for different force without poling operation in which higher output was observed for higher force. A maximum 29V and 60V was observed for the piezoelectric and triboelectric layer respectively. This prospective application of this hybrid PTENG for the application in energy harvesting, sensory application and electronic devices has also been discussed.