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- Title
Preparation and Characteristics of Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub> Single-Crystalline Films by a Solid-State Process.
- Authors
Ijuu, Daiji; Kimura, Toshio; Yamada, Tomoaki; Funakubo, Hiroshi
- Abstract
A novel process was demonstrated for the preparation of an epitaxial Bi0.5Na0.5TiO3 (BNT) single-crystalline film on a SrTiO3 single crystal substrate by simply heating a composite consisting of a BNT powder layer on the substrate. The BNT powder layer was formed on the substrate by spin coating and the composite was heated at 1150°C for several hours in a lidded crucible containing the BNT powder to avoid evaporation of Na and Bi from the composite. This yielded an epitaxial BNT single-crystalline film several micrometers thick. The film had a high degree of orientation with the rocking curve full width at half maximum of 0.064°. The mechanism of film formation was found to be solid-state spreading of BNT powder particles on the substrate, and a dense film was obtained from the porous powder layer.
- Subjects
BISMUTH; SODIUM; TITANIUM dioxide; CRYSTALS; FERROELECTRIC thin films; SOLID state chemistry
- Publication
Journal of the American Ceramic Society, 2011, Vol 94, Issue 10, p3291
- ISSN
0002-7820
- Publication type
Article
- DOI
10.1111/j.1551-2916.2011.04569.x