Poled PVDF piezoelectric film without electrode. Thickness of 12 um, other thickness available upon request, high d31 >28 pC/N and d33 >18 pC/N.
Note: it is difficult to use d33 meter to accurately measure thin polymer film. The measured value is usually lower than actual performance for thinner film. It is more appropriate to use d31 to characterize thin film <40 um.
For piezo sensors. loudspeakers.
Also for electroactive polymer EAP actuator, soft actuator, robotics
Uniaxially oriented with high d31 (but almost no d32).
Berkeley and Tsinghua in "Insect-scale fast moving and ultrarobust soft robot", Science Robotics
Bending actuator https://www.youtube.com/watch?v=G7-wSv4pUwI