On the Temperature Dependence of the Piezoelectric Response of Prepoled Poly(vinylidene fluoride) Films.

ABSTRACT: There is growing interest in integrating piezoelectric materials with complementary metal-oxide-semiconductor (CMOS) technology to enable expanded applications. A promising material for ultrasound transducer applications is polyvinylidene fluoride (PVDF), a piezoelectric polymer. One of the challenges with PVDF is that its piezoelectric properties can deteriorate when exposed to temperatures in excess of 70 °C for extended periods of time during fabrication. Here, we report on the effects of both shortening annealing times and providing this heating non-uniformly, as is characteristic of some processing conditions, on the piezoelectric coefficient (d ₃₃) of PVDF films for various thicknesses. In this case, no degradation in the d ₃₃ was observed at tempe

SUBMITTER: Sherman JD 

PROVIDER: S-EPMC8205423 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature