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Faculty of Engineering, Kyoto University, Kyoto, 606-01 Japan
This is an abstract for a poster to be presented at the Fifth Foresight Conference on Molecular Nanotechnology. The full paper is now available.
Ferroelectric materials can be utilized to construct super high-density
molecular memory. In this study, the nano-scale polarization switching
and detection in ferroelectric organic molecules was succeeded by using an
scanning probe microscopy (SPM) technique. The dipole switching was
achieved by applying an electric voltage to the P(VDF/TrFE) film
spin-coated on Pt substrate, and the local polarization domains were
detected by the piezoelectric vibration, the amplitude and phase of which
were measured using a lock-in amplifier. The piezoelectric response image
revealed that several domain regions could be formed within a small
crystallite of about 200 nm in length. These facts suggest that the
reversible molecular memory with super high-density can be constructed.
Moreover, it was revealed that ultra-thin films with dipole orientation
could be formed directly by the vacuum evaporation under a dc electric
Professor Kazumi Matsushige, Director of Kyoto-University Venture Business Laboratory
Graduate School of Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-01 Japan
ph: +81-75-753-5308, fax: +81-75-753-7570, E-mail: email@example.com.
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