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Investigation of Ferroelectric Properties of Vinylidene Fluoride Oligomer Evaporated Films

  • K. Noda (a1), K. Ishida (a1) (a2), K. Mochizuki (a1), A. Kubono (a3), T. Horiuchi (a1), H. Yamada (a1) and K. Matsushige (a1)...

Abstract

Structures and electrical properties of newly synthesized vinylidene fluoride (VDF) oligomer [CF3(CH2CF2)17I] films evaporated onto various substrates around liquid nitrogen temperature were investigated. As a result, the VDF oligomer films were mainly formed with ferroelectric phase (form I) crystals and the molecular chains were oriented parallel to the substrate surfaces regardless of both the kind of the substrates and the thickness of the VDF oligomer films. In addition to these properties, the VDF oligomer films showed polarization reversal due to 180° rotation of the polar VDF oligomer molecules according to the applied voltages. This ferroelectric behavior was verified by local poling and piezoresponse measurements with an atomic force microscope, and by measurements of D-E hysteresis curves.

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Investigation of Ferroelectric Properties of Vinylidene Fluoride Oligomer Evaporated Films

  • K. Noda (a1), K. Ishida (a1) (a2), K. Mochizuki (a1), A. Kubono (a3), T. Horiuchi (a1), H. Yamada (a1) and K. Matsushige (a1)...

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