Flexible and active self-powered pressure, shear sensors based on freeze casting ceramic-polymer composites.

ABSTRACT: Self-powered flexible electronics are of particular interest and important for next generation electronics due to their light weight, flexible and self-sustainable properties. Many self-powered sensors made from piezoelectric composite materials are either inflexible or possess low piezoelectricity. In this work, we demonstrate self-powered flexible and highly active pressure and shear sensors based on freeze casting ceramic-polymer structures. A lamellar lead zirconate titanate (PZT) structure is initially developed via freeze-casting and the piezoelectric composites are formed by impregnating a polydimethylsiloxane (PDMS) matrix into the aligned pore channels. The structured PZT-PDMS composites exhibited a high effective longitudinal piezoelectric coefficient (d ₃₃

SUBMITTER: Xie M 

PROVIDER: S-EPMC6333270 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature