Piezoelectric Materials for High Performance Energy Harvesting Devices

Energy harvesting generators have been received research interest in recent years and these are attractive as inexhaustible replacements for batteries in low-power wireless electronic devices. We have fabricated epitaxial thin films on (001) SrTiO 3 substrates. The films show very high structural quality and purely cube-on-cube orientation relationship between NaNbO 3 film and SrTiO 3 substrate. The epitaxial thin films on single crystal will be promising to investigate piezoelectric properties of Leadfree piezoelectric materials.