Large piezoelectric coefficient and ferroelectric nanodomain switching in Ba(Ti0.80Zr0.20)O3-0.5(Ba0.70Ca 0.30)TiO3 nanofibers and thin films

Authors

A Jalalian, University of WollongongFollow
A Grishin, KTH Royal Institute of Technology
Xiaolin Wang, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

88733

Publication Details

Jalalian, A., Grishin, A. M., Wang, X., Cheng, Z. & Dou, S. X. (2014). Large piezoelectric coefficient and ferroelectric nanodomain switching in Ba(Ti0.80Zr0.20)O3-0.5(Ba0.70Ca 0.30)TiO3 nanofibers and thin films. Applied Physics Letters, 104 (10), 103112-1-103112-5.

Abstract

Currently available low-dimensional piezoelectric materials show a low piezoelectric coefficient d33 of merely 100 pm V-1 with Pb(Zr, Ti)O3-based materials at the high end. Here, we report very large piezoelectricity in Ba(Ti0.80Zr0.20)O 3-0.5(Ba0.70Ca0.30)TiO3 (BTZ-0.5BCT) lead-free nanostructures sintered as thin films (d33 = 140 pm V -1) and nanofibers (d33 = 180 pm V-1). The influences of lateral size, geometry, and the clamping effect on the piezoelectric performance were investigated for both thin films and nanofibers. Combining a high piezoelectric coefficient with environmental benefits, the BTZ-0.5BCT nanostructures provide the superior functions sought for highly efficient piezoelectric devices and electromechanical systems. 2014 AIP Publishing LLC.

Grant Number

ARC/DP0879070

Additional Grant Number

http://purl.org/au-research/grants/arc/DP0879070