Piezoelectric Response in Hybrid Micropillar Arrays of Poly(Vinylidene Fluoride) and Reduced Graphene Oxide; Polymers; Vol. 11, iss. 6

Piezoelectric Response in Hybrid Micropillar Arrays of Poly(Vinylidene Fluoride) and Reduced Graphene Oxide; Polymers; Vol. 11, iss. 6

Bibliografiske detaljer
Parent link:Polymers
Vol. 11, iss. 6.— 2019.— [1065, 17 p.]
Corporate Authors: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий, Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий Научно-исследовательский центр "Физическое материаловедение и композитные материалы"
Andre forfattere: Pary (Pariy) I. O. Igor Olegovich, Ivanova A. A. Anna Aleksandrovna, Shvartsman V. V. Vladimir, Lupascu D. C. Doru, Sukhorukov G. B. Gleb Borisovich, Ludwig T. Tim, Bartasyte A. Ausrine, Mathur S. Sanjay, Surmeneva M. A. Maria Alexandrovna, Surmenev R. A. Roman Anatolievich
Summary:Title screen
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 ?, ?, and ? phases co-existed in all studied samples, with a predominance of the ? 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 |d33eff| 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.
Sprog:engelsk
Udgivet: 2019
Fag:
труды учёных ТПУ
электронный ресурс
piezoelectric response
light pattering
reduced graphene oxide
poly(vinylidene fluoride)
hybrid film
пьезоэлектрический эффект
пленки
оксид графена
Online adgang:https://doi.org/10.3390/polym11061065
Format: Electronisk Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661811

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