1. A method for forming a crystalline film of a material, comprising the steps of:
depositing a solution comprising precursor molecules on a substrate including a base film disposed thereon, wherein the base
film is a template crystalline film, the solution having a base critical speed between a convective regime and an LLD regime,
such that a crystalline film is formed;
wherein the solution is deposited at a speed greater than the base critical speed and the crystalline film has a crystal structure
characteristic of a crystalline film formed from the solution at a deposition speed less than the base critical speed.