FABRICATION AND CHARACTERIZATION OF FERROELECTRIC POLY (VINYLIDENE FLUORIDE -CO -TRIFLUOROETHYLENE) NANODOTS

Yoon-Young Choi, Moonkyu Park, Jongin Hong, Kwangsoo No

Abstract

We demonstrated a facile route to fabricate ferroelectric poly(vinylidene fluoride-trifluoroethylene), P(VDF-TrFE), nanodots from spin-coated thin films. Importantly, the discrete P(VDF-TrFE) nanodots possessed high degree of β-phase [<i>F</i>(β) > 60%] when compared to the fraction of β-phase in thin films [<i>F</i>(β) = 51%]. P(VDF–TrFE) nanodots of (51.4 ± 10.6) nm in height and (172.75 ± 40.5) nm in diameter displayed superior piezoresponse values (18.1 ± 3.3) pm/V and a low coercive voltage (2.4 ± 0.5) V. This offers our rationale for a great promise in non-volatile memories, infrared sensor arrays and artificial skin applications.

Keywords: ferroelectric P(VDF-TrFE) nanodots, spin coating, dewetting, piezoresponse force microscopy
Download: IMEKO-WC-2012-SS2-P5.pdf
DOI: -

Event details

Event: XX IMEKO World Congress
Place: Busan, REPUBLIC of KOREA
Time: 9 September 2012 - 12 September 2012
Website: http://imeko2012.kriss.re.kr

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