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Formation of Selenide, Sulfide or Mixed Selenide-Sulfide Films on Metal or Metal Coated Substrates

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A method of forming a metal-coated substrate having a CuInGaR.sub.2 film on a surface of the metal coating is performed in such a manner that reaction of the metal with Se is substantially prevented, wherein R is Se or a combination of Se and S and wherein the metal is selected from the group consisting of Mo, W, Cr, Ta, Nb, V and Ti. The method includes the steps of: providing a precursor film on the surface of the metal coating, wherein the metal coating contains oxygen in an amount sufficient to inhibit reaction of the metal with Se; and selenizing the precursor film; wherein said selenizing is limited to providing only that amount of Se required to form the CuInGaR.sub.2 film.
Eser, Erten (Newark, DE), Fields, Shannon (Wilmington, DE)
Eser; Erten (Newark DE)
13/ 460,253
April 30, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was developed under a grant no. AdJ-1-30630-12 from the National Renewable Energy Laboratories.