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arxiv: 1607.00935 · v1 · pith:DIHDS6NTnew · submitted 2016-07-04 · ❄️ cond-mat.mtrl-sci

Shear piezoelectricity in poly(vinylidenefluoride-co-trifluoroethylene): full piezotensor coefficients by molecular modeling, biaxial transverse response, and use in suspended energy-harvesting nanostructures

Luana Persano (1) , Alessandra Catellani (1) , Canan Dagdeviren (2-4) , Yinji Ma (5 , 6) , Xiaogang Guo (5 , 7) , Yonggang Huang (5)
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Arrigo Calzolari (1) Dario Pisignano (1 8) ((1) CNR-Istituto Nanoscienze (2) Department of Materials Science Engineering-University of Illinois at Urbana-Champaign (3) David H. Koch Institute for Integrative Cancer Research-Massachusetts Institute of Technology (4) Harvard Society of Fellows (5) Department of Civil Environmental Engineering Department of Mechanical Engineering-Northwestern University (6) Department of Engineering Mechanics-Tsinghua University (7) College of Aerospace Civil Engineering-Harbin Engineering University (8) Dipartimento di Matematica e Fisica 'E. De Giorgi'-Universit\`a del Salento)
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classification ❄️ cond-mat.mtrl-sci
keywords responseshearbiaxialfullpiezoelectricpiezoelectricitysuspendedtransverse
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The intrinsic flexible character of polymeric materials also causes remarkable strain deformations along directions perpendicular to the applied stress. Here the biaxial response in the shear piezoelectricity of polyvinylidenefluoride copolymers is analyzed and their full piezoelectric tensors are provided. The microscopic shear is exploited in single suspended nanowires bent by localized loading to couple flexural deformation and transverse piezoelectric response.

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