Preparation of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 Thin Films Via a Polyvinylpyrrolidone-Assisted Aqueous Sol-Gel Process and Dielectric Properties
Authors: Nakagauchi, Ryo; Kozuka, Hiromitsu
Source: Journal of the American Ceramic Society, Volume 90, Number 11, November 2007 , pp. 3632-3634(3)
Abstract:Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) thin films were prepared by spin coating using aqueous solutions of metal salts containing polyvinylpyrrolidone, where niobium oxide layers and lead—magnesium-titanium oxide layers were laminated on Pt(111)/TiOx/SiO2/Si(100) substrates and fired at 750° or 800°C. 250 ± 20 nm thick 0.7PMN-0.3PT thin films of a single-phase perovskite could be prepared, and the film fired at 750°C had dielectric constants and dielectric loss of 1900 ± 350 and 0.13 ± 0.03, respectively, exhibiting polarization-electric field hysteresis with a remanent polarization of 5.1 μC/cm2 and a coercive field of 21 kV/cm.
Document Type: Research article
Publication date: 2007-11-01