LaNiO3 THIN FILM-FORMING COMPOSITION AND METHOD OF FORMING LaNiO3 THIN FILM USING THE SAME

A LaNiO3 thin film-forming composition for forming a LaNiO3 thin film, the composition comprising:

• LaNiO3 precursors;
• one or more first organic solvents selected from the group consisting of carboxylic acids, alcohols, esters, ketones, ethers, cycloalkanes, aromatic compounds, and tetrahydrofuran;
• one or more stabilizers selected from the group consisting of β-diketones, β-ketones, β-keto esters, oxyacids, diols, triols, carboxylic acids, alkanolamines, and polyvalent amines;
• and
• a second organic solvent having a boiling point of 150° C. to 300° C. and a surface tension of 20 dyn/cm to 50 dyn/cm,
• wherein a ratio of the LaNiO3 precursors is 1 mass % to 20 mass % in terms of oxides with respect to 100 mass % of the composition,
• a ratio of the stabilizer is greater than 0 mol and less than or equal to 10 mol with respect to 1 mol of a total amount of the LaNiO3 precursors in the composition, and
• a ratio of the second organic solvent is 5 mass % to 20 mass % with respect to 100 mass % of the composition.