| abstract |
An object of the present invention is to form a uniform LaNiO 3 film having few voids. The problem solving means is a first organic solvent containing one or two or more kinds of LaNiO3 precursors selected from the group consisting of carboxylic acids, alcohols, esters, ketones, ethers, naphthenes, aromatics and tetrahydrofuran; One or more selected from the group consisting of β-diketones, β-ketones, β-ketoesters, oxyacids, diols, triols, carboxylic acids, alkanolamines, and polyvalent amines a stabilizer; and a second organic solvent having a boiling point of 150 to 300 ° C and a surface tension of 20 to 50 dyn/cm, and the proportion of the LaNiO 3 precursor in the composition of 100% by mass is 1 to 20% by mass in terms of oxide, and the stability is stabilized. The ratio of the second organic solvent in the composition of 100% by mass is 5 to 20% by mass based on the total amount of the LaNiO 3 precursor in the composition of 1 mol to more than 0 and not more than 10 mol. |