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

Navneet Soin, D. Boyer, K. Prashanthi, S. Sharma, A. A. Narasimulu, J. Luo, T. H. Shah, E. Siores, T. Thundat

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66 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)8257-8260
Number of pages4
JournalChemical Communications
Volume51
Issue number39
DOIs
Publication statusPublished - 8 Apr 2015

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    Soin, N., Boyer, D., Prashanthi, K., Sharma, S., Narasimulu, A. A., Luo, J., Shah, T. H., Siores, E., & Thundat, T. (2015). Exclusive self-aligned β-phase PVDF films with abnormal piezoelectric coefficient prepared via phase inversion. Chemical Communications, 51(39), 8257-8260. https://doi.org/10.1039/c5cc01688f