TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The metal carboxylate species comprises one or more species of zinc carboxylate or indium carboxylate species. The zinc carboxylate species comprises a zinc aryl carboxylate (I) of formula (Zn(O2CAr)(O2CAra)) and the indium carboxylate species comprises a indium aryl carboxylate (II) of formula (In(O2CAr)(O2CAra)(O2CArb)).Ar, Ara, Arb= aryl groups (optionally substituted).The liquid carrier is a solvent. The coating composition is an emulsion. The coating composition comprises: a dopant; one or more additives of surfactants, rheology modifiers, adhesion strengthening additives, drying accelerators and pigments; and a polymer species. The dopant comprises at least one of tin, titanium, vanadium, molybdenum, tungsten, cerium, aluminum, gallium, arsenic, yttrium, fluorine, boron and nitrogen. The substrate is substantially transparent. The thickness of the film is 200 nm, optionally 100-150 nm.Preferred Process: The composition is applied to the substrate by spin coating, dip coating, spraying, aerosol, pyrosol, misting, brushing, screen printing or ink-jet printing. The coated substrate is heated at 300-600degreesC. The coating composition is applied to the substrate, with intermediate drying steps, no more than 3 times (preferably only once) prior to laser irradiation. The process comprises an additional step of annealing the substrate in air and/or in a nitrogen/hydrogen atmosphere is inserted between the step of heating the coated substrate and the step of irradiating the film with the laser. The laser irradiating step is carried out at an energy fluence of 100-200 mJ/cm2. EXAMPLE - Indium compound of formula (In(O2CC6H2-2-OH-3,5-CHMe2)3) (8.12%) and zinc carboxylate compound of formula (Zn(O2CC6H2-2-OH-3,5-CHMe2)2) (2.65%) were dissolved in the Dowanol PM (RTM: 2-Methoxyethanol) (20%) and stirred to give formulation. The Neocryl B-814 (RTM: Poly(ethyl acrylate-co-ethyl methacrylate-co-methyl methacrylate)) (22%) was incorporated into the formulation. The formulation was printed onto alkali-free glass, 3 times, 5 times, 2 times and 1 time respectively. The obtained organic film was heat-treated at 500degreesC for 10 minutes to give the zinc diindium tetraoxide film.