TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Method: The adsorption involves self-assembly of the metal oxide nanoparticles on the surface of the substrate. The metal oxide nanoparticles form chemical bonds with the surface of the substrate. In the method, an organic coating material is disposed on a surface of the metal oxide nanoparticles to provide the capped or coated metal oxide nanoparticles. The concentration of the metal oxide nanoparticles in the colloidal suspension is greater than or equal to 5 mg/mL. The method (M1) further involves patterning the substrate prior to the contacting. The contacting is by partially or completely dipping the substrate into the colloidal suspension. The pre-determined period is less than or equal to 15 minutes. The heating involves heating the substrate surface at greater than or equal to 150 degrees C for at least 5 minutes. The organic coating material is removed partially or completely from the surface of the metal oxide nanoparticles during the heating. The metal oxide thin film has a thickness of less than or equal to 100 nm. The method (M1) involves repeating the contacting and the heating to form a further metal oxide thin film on the surface of the substrate having a preceding metal oxide thin film, to increasing the thickness of the metal oxide thin film. The metal oxide nanoparticles comprised in the further metal oxide thin film adsorb onto the surface of the preceding metal oxide thin film. The metal oxide nanoparticles comprised in the further metal oxide thin film are the same or different compared to the metal oxide nanoparticles comprised in the preceding metal oxide thin film. Preferred Nanoparticles: The metal oxide nanoparticles are capped or coated metal oxide nanoparticles. The metal oxide nanoparticles comprise at least one dimension of size of less than or equal to 200 nm (preferably less than or equal to 10 nm). The metal oxide nanoparticles comprise nanoparticles of at least one of titanium oxide, zirconium oxide, hafnium oxide, vanadium oxide, niobium oxide, tantalum oxide, tungsten oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, copper oxide, zinc oxide, gallium oxide, indium oxide, tin oxide, cerium oxide, barium titanate, strontium titanate, calcium titanate, barium strontium titanate, barium, lanthanum, lithium lanthanum titanate, lead titanate, lead zirconium titanate, barium zirconate, lead zirconate, yttrium ferrite, bismuth ferrite, yttrium barium copper oxide, lanthanum manganese oxide, and/or strontium cerium oxide. The substrate is a patterned substrate comprises glass, plastic, silicon wafer, or silicon.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The organic coating material comprises an alkanoic acid, a (un)saturated fatty acid, decanoic acid, oleic acid, an alkylamine, a fatty amine, oleylamine, an alkanol, a fatty alcohol, oleyl alcohol, and/or derivatives of alcohol. EXAMPLE - No suitable example given.