Patent ID: 7670647

Claim:
A method of forming a zinc oxide film comprising: providing a moving, hot glass substrate; preparing a precursor gas mixture comprising an alkyl zinc compound chelated by at least one tridentate ligand, an oxygen-containing compound, and an inert carrier gas; maintaining the precursor gas mixture at a temperature below the temperature at which the alkyl zinc compound reacts with the oxygen-containing compound to form a zinc oxide film while delivering the gaseous mixture to a coating chamber which opens onto the hot glass substrate; and introducing the precursor gas mixture into the coating chamber and directing the mixture to a surface of the heated glass substrate, whereby the gaseous mixture is heated to above the reaction temperature of the alkyl zinc compound and the oxygen-containing compound to cause the deposition of the zinc oxide film on the surface of the heated glass substrate, wherein the alkyl zinc compound chelated by at least one tridentate ligand comprises a dialkyl zinc glycol alkyl ether.