Excellent Ferroelectricity of Thin Poly(Vinylidene Fluoride-Trifluoroethylene) Copolymer Films and Low Voltage Operation of Capacitors and Diodes

Sumiko Fujisaki, Yoshihisa Fujisaki, and Hiroshi Ishiwara

ABSTRACT Characteristics of metal-ferroelectrics-metal (MFM) capacitors and metal-ferroelectrics-insulator-semi- conductor (MFIS) diodes with poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer films thinner than 100 nm were investigated. The films were prepared by spin-cast process and were annealed at 140°C in air for crystallization. The ferroelectric properties are equivalent to those of oxide ferroelectrics, even under low voltage or high frequency operation.

Digital Object Identifier 10.1109/TUFFC.2007.583

© 2007, by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved.

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