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Nanocomposite piezoelectric films of P(VDF‐TrFE)/LiNbO 3
Author(s) -
Nguyen Van Son,
Badie Laurent,
Lamouroux Emmanuel,
Vincent Brice,
Santos Fabrice Domingues Dos,
Aufray Maëlen,
Fort Yves,
Rouxel Didier
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38746
Subject(s) - materials science , nanocomposite , crystallinity , copolymer , ferroelectricity , lithium niobate , nanoparticle , differential scanning calorimetry , surface modification , composite material , exfoliation joint , chemical engineering , polymer , polymer chemistry , nanotechnology , physics , optoelectronics , dielectric , engineering , thermodynamics , graphene
Piezoelectric films were prepared by incorporation of lithium niobate (LiNbO 3 ) nanoparticles into copolymer of vinylidene difluoride and trifluoroethylene. Nanoparticles of LiNbO 3 with ferroelectric phase were successfully synthesized and dispersed homogenously by ultrasonication in the copolymer matrix without any surfactant or surface functionalization. The nanocomposites were fully characterized by electronic microscopy, X‐ray diffraction, differential scanning calorimetry, dynamical mechanical analysis, and piezometer. Surprisingly, the copolymer matrix crystallinity and morphology were not affected by the incorporation of nanoparticles. Therefore the nanocomposites remained good mechanicals properties and high ferroelectricity coupled to nonlinear optical activity thanks to the noncentro symmetric space group of lithium niobate. This could be a novel approach to develop new multifunctional materials. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013