Hybrid Energy Harvester Using Piezoelectric and Pyroelectric Properties of PZT-5A Ceramics

摘要

This paper presents a novel hybrid piezoelectric-pyroelectric energy harvester using a cantilever beam with a PZT tip mass. The cantilever is moving between two surfaces with different temperatures under external vibration. PZT ceramic is used as the piezoelectric material, which also has pyroelectric characteristics. By using the pyroelectric effect along with the piezoelectric one, the output RMS voltage of the PZT ceramic was enhanced up to 10% under 50℃ AT.