Strain engineering is an innovative and prominent concept in the field of materials science. The coupling of materials’ strain/stress with their functional properties leads to a number of unprecedented phenomena ranging from Surface-enhanced Raman spectroscopy (SERS) enhancement in corrugated plasmonic structures to modification of the energy landscape in catalytic systems, from improving of nano-scale ferroelectricity in coherent epitaxial films to an increase of energy harvesting efficiency in photovoltaic devices. Herein, we report on preliminary results of our work related to modification and improvement of piezoelectric properties of PVDF nanocomposites by employing strain technology. Two experimental approaches are utilized to produce polymer nanocomposites: (i) mechanical stretching of PVDF matrix with doped ferroelectric BaTiO<sub>3</sub> (barium titanate) nanoparticles and (ii) doping of PVDF with mechanochemically synthesized BaTiO<sub>3</sub> nanoparticles. The overall goal is to improve elasticity of polymer composites in order to enhance their piezoelectric functionalities. The mechanical, structural and electrical properties of the synthesized materials will also be discussed.

Synthesis, mechanical, and structural properties of piezoelectric polyvinylidene fluoride doped with barium titanate nanoparticles

255th National Meeting (2018)

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