Study of the ferroelectric properties for PVDF using DFT Theory

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Polyvinylidene fluoride (PVDF) exhibits piezoelectricity effect. In this work, it is presented a theoretical study of some properties of this material which were calculated by Density Functional Theory (DFT). Among those properties are: polarizability, dipolar moment and energy associated to the structural changes; also are analyzed some concepts to obtain capacitance values and its relationship with the polarizability. The B3LYP functional and 6311+G(d,p) bases set are used with a Gaussian program. Five long chains molecules are studied, H–(CH2–CF2)x–H, where x=1,2,4,6,8; as for the molecular conformers T, TG, T3G, where T means trans and G means gauche.

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Journal: TechConnect Briefs
Volume: 2, Nanotechnology 2008: Life Sciences, Medicine & Bio Materials – Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 2
Published: June 1, 2008
Pages: 767 - 770
Industry sectors: Advanced Materials & Manufacturing | Personal & Home Care, Food & Agriculture
Topic: Personal & Home Care, Food & Agriculture
ISBN: 978-1-4200-8504-4