Poled PVDF piezoelectric film 48~50 um thick. Uniaxially oriented with high d31 of >20 pC/N. d33 is around 14 pC/N and modulus is around 2.5 GPa.
Metallized piezo sheet of PVDF film, transparent ITO Electrode with 100+/-50 ohm/sq resistance both surfaces. The better electrical conductivity reduced piezo response.
https://youtu.be/gCjqgMVjHGk Optically transparent flexible piezo speaker
One sheet with size is 200 mm x 230 mm.
Great for piezoelectric piezo eneregy harvesting, piezo sensors, microphones, transparent flexible loudspeakers, actuators.
Also for electroactive polymer EAP actuator, soft actuator, robotics
Uniaxially oriented with high d31 (but almost no d32).