Piezoelectric response in hybrid micropillar arrays of poly(vinylidene fluoride) and reduced graphene oxide

Igor O. Pariy, Anna A. Ivanova, Vladimir V. Shvartsman, Doru C. Lupascu, Gleb B. Sukhorukov, Tim Ludwig, Ausrine Bartasyte, Sanjay Mathur, Maria A. Surmeneva, Roman A. Surmenev

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study was dedicated to the investigation of poly(vinylidene fluoride) (PVDF) micropillar arrays obtained by soft lithography followed by phase inversion at a low temperature. Reduced graphene oxide (rGO) was incorporated into the PVDF as a nucleating filler. The piezoelectric properties of the PVDF-rGO composite micropillars were explored via piezo-response force microscopy (PFM). Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) showed that α,β, and γ phases co-existed in all studied samples, with a predominance of the γ phase. The piezoresponse force microscopy (PFM) data provided the local piezoelectric response of the PVDF micropillars, which exhibited a temperature-induced downward dipole orientation in the pristine PVDF micropillars. The addition of rGO into the PVDF matrix resulted in a change in the preferred polarization direction, and the piezo-response phase angle changed from -120° to 20°-40°. The pristine PVDF and PVDF loaded with 0.1 wt % of rGO after low-temperature quenching were found to possess a piezoelectric response of 86 and 87 pm/V respectively, which are significantly higher than the |d33 eff| in the case of imprinted PVDF 64 pm/V. Thus, the addition of rGO significantly affected the domain orientation (polarization) while quenching increased the piezoelectric response.

Original languageEnglish
Article number1065
JournalPolymers
Volume11
Issue number6
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Graphite
Oxides
Graphene
Quenching
Microscopic examination
Polarization
Temperature
Lithography
Fourier transform infrared spectroscopy
Fillers
polyvinylidene fluoride
X ray diffraction
Composite materials

Keywords

  • Hybrid film
  • Piezoelectric response
  • Poly(vinylidene fluoride)
  • Reduced graphene oxide

ASJC Scopus subject areas

  • Chemistry(all)
  • Polymers and Plastics

Cite this

Piezoelectric response in hybrid micropillar arrays of poly(vinylidene fluoride) and reduced graphene oxide. / Pariy, Igor O.; Ivanova, Anna A.; Shvartsman, Vladimir V.; Lupascu, Doru C.; Sukhorukov, Gleb B.; Ludwig, Tim; Bartasyte, Ausrine; Mathur, Sanjay; Surmeneva, Maria A.; Surmenev, Roman A.

In: Polymers, Vol. 11, No. 6, 1065, 01.01.2019.

Research output: Contribution to journalArticle

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