Thermo-electromechanical Behavior of Piezoelectric Nanofibers

ACS Applied Materials & Interfaces
Mahmoud BaniasadiMajid Minary-Jolandan

Abstract

High performance piezoelectric devices based on arrays of PVDF-TrFE nanofibers have been introduced in the literature for a variety of applications including energy harvesting and sensing. In this Research Article, we utilize uniaxial tensile test on arrays of nanofibers, microtensile, and nanoindentation and piezo-response force microscopy (PFM) on individual nanofibers, as wells as DSC, XRD, and FTIR spectroscopy to investigate the effect of annealing on microstructure, mechanical, and piezoelectric properties of arrays and individual electrospun nanofibers. For PVDF-TrFE nanofibers annealing in a temperature between the Curie and melting temperature (in paraelectric phase) results in ∼70% increase in crystallinity of the nanofibers. The findings of our multiscale experiments reveal that this improvement in crystallinity results in ∼3-fold increase in elastic modulus, and ∼55% improvement in piezoelectric constant. Meanwhile, the ductility and tensile toughness of the nanofibers drop by ∼1 order of magnitude. In addition, nanoscale cracks were observed on the surface of the annealed nanofibers; however, they did not result in significant change in the strength of the nanofibers. The results of this work may have important imp...Continue Reading

References

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Feb 6, 2015·The Journal of Physical Chemistry. B·Chelsea M HessPhilip J Reid
Feb 19, 2015·ACS Applied Materials & Interfaces·Mahmoud BaniasadiMajid Minary-Jolandan
Jul 15, 2015·Acta Biomaterialia·Amir Hossein RajabiTreena Livingston Arinzeh

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Citations

Jun 24, 2017·ACS Applied Materials & Interfaces·Enlong YangMajid Minary-Jolandan
Nov 9, 2019·Advanced Healthcare Materials·Bahareh AzimiSerena Danti
Sep 7, 2018·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Tong LiJie Zheng
Jun 6, 2017·Journal of Applied Polymer Science·Ariana S LevittCaroline L Schauer
Jan 23, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Anshida MayeenNandakumar Kalarikkal
Sep 11, 2018·ACS Applied Materials & Interfaces·Zhe XuJohn X J Zhang
Jun 17, 2020·ACS Applied Materials & Interfaces·Zhe XuJohn X J Zhang
Nov 21, 2020·ACS Applied Materials & Interfaces·Yue SunWan Shou
Nov 10, 2021·Advanced Materials·Yizhou WangHusam N Alshareef

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