High performance ferroelectric relaxor-PbTiO3 single crystals: Status and perspective

Ferroelectrics are essential components in a wide range of applications, including ultrasonic transducers, sensors, and actuators. In the single crystal form, relaxor-PbTiO3 (PT) piezoelectric materials have been extensively studied due to their ultrahigh piezoelectric and electromechanical properties. In this article, a perspective and future development of relaxor-PT crystals are given. Initially, various techniques for the growth of relaxor-PT crystals are reviewed, with crystals up to 100 mm in diameter and 200 mm in length being readily achievable using the Bridgman technique. Second, the characterizations of dielectric and electromechanical properties are surveyed. Boundary conditions, including…

• NN
  National Natural Science Foundation of China

  Awards: 51102193, 10976022
• OO
  Office of Naval Research

  Awards: N00014-07-C-0858, N00014-09-01-0456