LITHIUM NIOBATE PRECURSOR PARTICLE FOR MAKING LITHIUM NIOBATE THIN FILM, ITS MANUFACTURING METHOD, LITHIUM NIOBATE PRECURSOR SOLUTION FOR MAKING LITHIUM NIOBATE THIN FILM AND METHOD FOR MAKING LITHIUM NIOBATE THIN FILM

摘要

PROBLEM TO BE SOLVED: To provide a lithium niobate precursor which contains lithium and niobium in the same molar amount and is preservable for a long period; its manufacturing method; and a method for quickly making a lithium niobate thin film which is thick and has a stoichiometric composition and no crack.;SOLUTION: The method for making the lithium niobate precursor particles comprises the step of synthesizing a complex alkoxide by dissolving in an alcohol a lithium alkoxide and a niobium alkoxide in a molar ratio of (1.05 to 1.10):1.00, the step of hydrolyzing, the step of filtering, washing, and purifying a precipitate, and the step of drying the precipitate. The lithium niobate thin film is made by using a lithium niobate precursor solution prepared by dispersing the lithium niobate precursor particles and a protective colloid in a solvent.;COPYRIGHT: (C)2004,JPO