Fabrication of Ferroelectric BaTiO3 Films by Electrophoretic Deposition

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Copyright (c) 1993 The Japan Society of Applied Physics
, , Citation Soichiro Okamura and Takeyo Tsukamoto Koura 1993 Jpn. J. Appl. Phys. 32 4182 DOI 10.1143/JJAP.32.4182

1347-4065/32/9S/4182

Abstract

BaTiO3 thick films on Pt substrates were fabricated by the electrophoretic deposition method. The suspension was prepared with fine powder (0.1 µm in diameter) of BaTiO3, acetone and iodine. Dense and strong films were formed in an applied DC field of 500 V/cm. The films sintered at 1200°C were crystallized into the tetragonal phase at room temperature. The coercive field Ec and the remanent polarization Pr were estimated to be 1.6 kV/cm and 2.1 µC/cm2, respectively, from the P-E hysteresis loop observation.

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10.1143/JJAP.32.4182