METHODS OF FORMING NANO-SCALE AND MICRO-SCALE STRUCTURED MATERIALS AND MATERIALS FORMED THEREBY

摘要

Methods of forming porous nano-scale or micro-scale structured materials and structured materials formed thereby. Such methods entail providing a donor material and reacting the donor material to form a compound that deposits on a surface of a substrate to produce nano-scale or micro-scale geometric features of the structured material. In particular embodiments, the donor material is in a solution and the reacting step is performed by contacting the surface of the substrate with the solution and directing heat through the solution onto the surface to locally heat a portion of the solution in contact therewith.

主权项

1. A method of forming a porous nano-scale or micro-scale structured material, the method comprising:
providing a solution comprising a chalcogenide source and a donor material as a source of metal ions and/or metal complexes; contacting at least a surface of a substrate with the solution; directing heat through the solution onto a portion of the surface of the substrate to locally heat a portion of the solution in contact with the portion of the surface of the substrate to produce a compound that is a reaction product of the donor material and the chalcogenide source, forms as a result of the heat initiating a chemical reaction between the donor material and the chalcogenide source, and precipitates on the portion of the surface of the substrate to form nano-scale or micro-scale geometric features containing a metal chalcogenide; and cooling the portion of the surface to produce the structured material comprising the geometric features.