Piezoelectric energy harvesting from novel piezoelectric Tin titanate $(\text{SnTiO}_{3})$ material

Abstract

Mechanical energy harvesting from novel environment friendly piezoelectric material is useful for smart electronics applications. In this work, we synthesized and report piezoelectric energy harvesting properties at different applied force and at different frequencies from rhombohedral SnTiO3 nanocrystals (40–100 nm) prepared via hydrothermal process. XRD, and HRTEM confirms phase and morphology of the SnTiO3 (STO) nanocrystals. Piezoelectric nano generators were fabricated by using different percentages of SnTiO3 nanocrystals and Poly (dimethyal Siloxane) (PDMS). A short circuit peak current $\boldsymbol{\sim 0.25\text{nA}}$ and open circuit peak voltage $\boldsymbol{\sim 0.2\mathrm{V}}$ at room temperature was measured from the 40 wt. % STO–PDMS composite upon periodic impact of 1N and 4Hz, indicating its' efficacy as a future vibrational energy harvester.