Orientation control of chemical solution deposited LaNiO3 thin films

High quality LaNiO3 (LNO) thin films with preferred orientation could be synthesized on Pt/Ti/SiO2/Si substrates at 700 °C using the chemical solution deposition method. The homogeneous and stable LNO precursor solutions were prepared using lanthanum isopropoxide and nickel (II) acetylacetonate in a mixed solvent of absolute ethanol and 2-methoxyethanol. The oriented LNO thin films exhibit metallic electro-conduction, and their resistivity at room temperature is sufficiently low for making them an alternative electrode material for functional ceramic thin films.