Sol-Gel Synthesis of Perovskite-Type Lanthanum Manganite Thin Films and Fine Powders Using Metal Acetylacetonate and Poly(vinyl alcohol)

A novel sol–gel process was developed for preparing thin films and fine powders of lanthanum manganite (LaMnO3) with perovskite‐type structure. Lanthanum and manganese acetylacetonate powders could be easily dissolved in a mixed solution of methyl alcohol and ethylene glycol (or methyl alcohol and p...

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Veröffentlicht in:	Journal of the American Ceramic Society 1997-10, Vol.80 (10), p.2702-2704
Hauptverfasser:	Shimizu, Youichi, Murata, Tomohiko
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Growth from solutions Liquid phase epitaxy deposition from liquid phases (melts, solutions, and surface layers on liquids) Materials science Methods of crystal growth physics of crystal growth Methods of deposition of films and coatings film growth and epitaxy Physics
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Beschreibung
Zusammenfassung:	A novel sol–gel process was developed for preparing thin films and fine powders of lanthanum manganite (LaMnO3) with perovskite‐type structure. Lanthanum and manganese acetylacetonate powders could be easily dissolved in a mixed solution of methyl alcohol and ethylene glycol (or methyl alcohol and propionic acid) to give a spinnable organic solution as a starting material. Pretreatment of a substrate by poly(vinyl alcohol) (PVA) aqueous solution, a gel former, made it possible to deposit a thin film as well as to lower the sintering temperature.
ISSN:	0002-7820 1551-2916
DOI:	10.1111/j.1151-2916.1997.tb03178.x