Exclusive self-aligned β-phase PVDF films with abnormal piezoelectric coefficient prepared via phase inversion

Soin, Navneet ORCID: 0000-0002-0196-2071, Boyer, D., Prashanthi, K., Sharma, Surbhi, Narasimulu, Anand Arcot, Luo, J. ORCID: 0000-0003-0310-2443, Shah, Tahir H., Siores, E. ORCID: 0000-0003-2971-9580 and Thundat, T. (2015) Exclusive self-aligned β-phase PVDF films with abnormal piezoelectric coefficient prepared via phase inversion. Chemical Communications, 51 (39). pp. 8257-8260. ISSN 1359-7345

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Official URL: http://www.ncbi.nlm.nih.gov/pubmed/25874745

Abstract

Self-polarised poly(vinylidene fluoride), (PVDF), films were prepared via a facile phase-inversion technique wherein the polymorphism of the films was controlled from exclusive α- (>90%) to β-phase (>98%) by simply varying the quenching temperature from 100 °C to -20 °C, respectively. At low temperatures, the β-phase crystallites were found to be self-aligned, with the PVDF thin films possessing a high piezoelectric coefficient of up to -49.6 pm V(-1). The extraordinarily high β-phase and piezoelectric coefficient of these PVDF films make them suitable for electroactive and energy harvesting applications.

Item Type: Article
Divisions: University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 22 Jul 2016 10:06
Last Modified: 01 Jun 2018 08:12
Identification Number: 10.1039/c5cc01688f
URI: http://ubir.bolton.ac.uk/id/eprint/919

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