Ferroelectric Based Multi-Type Energy-Harvesting Device to Power a Mobile Medical Telemetry System

We have presented a multi-type energy-harvesting device for converting lighting, heating, and deformation to electricity using a composite material based on Sn2P2S6 ferroelectric semiconductor to power the mobile medical telemetry equipment. To convert vibrations and motion, a second transducer layer is used, which is based on the triboelectric effect. It also uses Sn2P2S6 powder as an active substance. Ferroelectric powder allows us to accumulate charge due to both the triboelectric and piezoelectric effect which significantly increases the efficiency of the converter. We have determined the pyroelectric, piezoelectric and photoelectric parameters of the composite active layer and triboelectric response amplitude and effectivity of triboelectric stage.