Ferroelectric stability of annealed PVDF-TrFE thin film incorporated with MgO nanofillers

Wahid, Mohamad Hafiz Mohd and Dahan, Rozana Mohd and Arshad, Adillah Nurashikin and Zulkefle, Habibah and Sa'ad, Siti Zaleha and Mahmood, Mohamad Rusop and Gan, Wee Chen and Abd Majid, Wan Haliza (2017) Ferroelectric stability of annealed PVDF-TrFE thin film incorporated with MgO nanofillers. Pertanika Journal of Science and Technology, 25 (S3). pp. 107-118. ISSN 0128-7680,

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Official URL: http://www.pertanika.upm.edu.my/Pertanika%20PAPERS...


Spin coated polyvinlylidenefluoride-trifluoroetylene (PVDF-TrFE 70/30mol%) copolymer thin film were initially produced and annealed at varying temperatures (100°C to 160°C). The morphology, dielectric and ferroelectric analysis showed that PVDF-TrFE film annealed at 120°C produced the highest remnant polarization, Pr of 92 mC/m2, with orderly and grain-like shaped crystallites. The filled PVDF-TrFE, loaded with various volume percentages (1 – 7%) of Magnesium Oxide (MgO) nanofillers and then, annealed at 120°C, produced homogenous filler distribution with low agglomerates, especially for 3% PVDF-TrFE filled films. Moreover, the annealed PVDF-TrFE/MgO(3%) generated the highest value of Pr in comparison to the other filled nanocomposite thin films. Most importantly, the saturation of hysteresis loop, Ps for annealed PVDF-TrFE/MgO(3%) film was relatively improved by 20% as compared to the unfilled annealed thin film. This study established that, 3% MgO loaded in PVDF-TrFE thin film and annealed at 120 °C demonstrated a stable ferroelectric thin film, closed to an ideal ferroelectric film, in which the ratio Pr/Ps for the film established a value approaching unity (value of 1).

Item Type: Article
Uncontrolled Keywords: Annealing; Dielectric; Ferroelectric; MgO; PVDF-TrFE; Spin coating
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Department of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 24 Oct 2019 04:39
Last Modified: 24 Oct 2019 04:39
URI: http://eprints.um.edu.my/id/eprint/22837

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