METHOD FOR SURFACE PATTERNING USING A FOCUSED LASER

摘要

A method for direct micropatterning of a surface by laser irradiation comprises: (i) covering a surface with a sample comprises either a homogeneous solution of one or more soluble metal salts, or a solution or suspension of a metal-ion containing compound of type A; (ii) irradiating the surface locally by applying a focused laser beam, thus resulting in local deposition of either (a) a metal(s) or metal oxide(s) obtained from the decomposition of the metal salt(s) from said homogeneous solution, or (b) a metal-ion containing compound of type B obtained from the decomposition of the initial type A compound from said solution or suspension; and (iii) repeating step (ii) by moving either the laser or the sample thus creating spots or lines of the deposited metal(s) or metal oxide(s), or compound of type B. By this method patterned lines of silver and modified or capped silver, gold, copper oxide and molybdenum disulfide were obtained.