Fabrication and characterization of thin piezoelectric β-poly(vinylidene fluoride) films

Scacco, V. and Andreani, C. and Fazi, L. and Licoccia, S. (2023) Fabrication and characterization of thin piezoelectric β-poly(vinylidene fluoride) films. Il nuovo cimento C, 46 (5). pp. 1-4. ISSN 1826-9885

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The polymer polyvinylidene fluoride (PVDF) has four phases, each characterized by different molecular configurations of the polymer chains. In its β phase it arranges in an all-trans configuration with dipolar symmetry, exhibiting piezoelectric effects. During the production of thin PVDF films by spin-coating, the polymer chains are not aligned and the dipoles are not oriented. To achieve the desired piezoelectric behavior, it is necessary to optimize both the chain alignment and the dipole orientation processes. We here present an easy procedure to maxi- mize the percentage of the β phase in the polymer production. The efficiency and reliability of such method has been assessed through Fourier-Transform Infra-Red and Raman spectroscopies, while the morphological differences of the two phases have been analyzed through Scanning Electron Microscopy. The results confirm the efficiency of this method.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 08 Mar 2024 14:01
Last Modified: 08 Mar 2024 14:01
URI: http://eprints.bice.rm.cnr.it/id/eprint/22741

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