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Characteristics of Ultra-thin Polymer Ferroelectric Films  

Kim, Kwang-Ho (Division of Energy & Optical Technology Convergence, Cheongju University)
Publication Information
Journal of the Semiconductor & Display Technology / v.19, no.4, 2020 , pp. 84-87 More about this Journal
Abstract
The properties of ultra-thin two-dimensional (2D) organic ferroelectric Langmuir-Blodgett (LB) films of the poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] were investigated to find possible applicability in flexible and wearable electronics applications. In the C-V characteristics of the MFM capacitor of 2-monolayer of 5 nm films, a butterfly hysteresis curve due to the ferroelectricity of P(VDF-TrFE) was confirmed. Typical residual polarization value was measured at 2μC/㎠. When the MFM capacitor with ultra-thin ferroelectric film was measured by applying a 10 Hz bipolar pulse, it was shown that 65% of the initial polarization value in 105 cycles deteriorated the polarization. The leakage current density of the 2-monolayer film was maintained at about 5 × 10-8 A/㎠ for the case at a 5MV/cm electric field. The resistivity of the 2-monolayer film in the case at an electric field at 5 MV/cm was more than 2.35 × 1013 Ω·cm.
Keywords
Ultra-thin; Ferroelectric Polymer; Langmuir-Blodgett; LB; P(VDF-TrFE); Wearable Electronics;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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