Large piezoelectric coefficient and ferroelectric nanodomain switching in Ba(Ti0.80Zr0.20)O-3-0.5(Ba0.70Ca0.30)TiO3 nanofibers and thin
2014 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 104, no 10, 103112- p.Article in journal (Refereed) Published
Currently available low-dimensional piezoelectric materials show a low piezoelectric coefficient d(33) of merely 100pm V-1 with Pb(Zr, Ti)O-3-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 (d(33) = 140pm V-1) and nanofibers (d(33) = 180pm 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.
Place, publisher, year, edition, pages
2014. Vol. 104, no 10, 103112- p.
Nanocrystalline Batio3, Barium-Titanate, Films, Nanogenerator, Nanowires, Ceramics, Energy, Raman, Microstructure, Fabrication
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-144544DOI: 10.1063/1.4867013ISI: 000333082800069ScopusID: 2-s2.0-84896294102OAI: oai:DiVA.org:kth-144544DiVA: diva2:714391
FunderSwedish Research Council
QC 201404282014-04-282014-04-242014-04-28Bibliographically approved