Relationship between the microstructure and the microscopic piezoelectric response of the α- And β-phases of poly(vinylidene fluoride)

Authors

J S. Nunes, University of Minho
Aiying Wu, University of AveiroFollow
João Gomes, Centi - Centre for Nanotechnology and Smart Materials
Vitor Sencadas, University of WollongongFollow
Paula M. Vilarinho, University of Aveiro
Senentxu Lanceros-Méndez, University of Minho

RIS ID

99317

Publication Details

Nunes, J. Serrado., Wu, A., Gomes, J., Sencadas, V., Vilarinho, P. M. & Lanceros-Méndez, S. (2009). Relationship between the microstructure and the microscopic piezoelectric response of the α- And β-phases of poly(vinylidene fluoride). Applied Physics A: materials science and processing, 95 (3), 875-880.

Abstract

The piezoelectric and pyroelectric properties of PVDF mainly depend on its β-phase. This work reports the study by scanning force microscopy in a piezoresponse mode of the variations in the topological morphology and piezoelectric surface response of β-PVDF prepared by the main preparation methods of this phase. Clear differences in the poled region distribution and size, as well as in the local piezoactivity, have been identified. The piezoelectric activity at a mesoscale reflects the semicrystalline phase of the polymer.