Development of High Performance Piezoelectrics by MPB and Domain Engineering

Abstract

  In piezoelectric materials, there are two mechanisms for improving piezoelectric properties: the morphotropic phase boundary (MPB) mechanism and the domain engineering mechanism. In this paper, we will explain in detail the two mechanisms for improving piezoelectric properties and also the origin of piezoelectric properties. We also explain the origins of intrinsic and extrinsic piezoelectric properties. Future material design direction for development of high-performance lead-free piezoelectric materials will be explained here.