Why do piezoelectric energy harvester always come in form of cantilever instead of crystal to be compressed between electrodes?

I'm making a piezoelectric energy harvester out of PZT/BTO/PVDF and composites between ceramics and polymers. I notice most PZTs are used in form of cantilever. Why is that? I wanted to use my...

02 February 2019 9,416 4 View