Patent ID: 6117703
Filing Date: 2000-09-12
Classification: C25D,H01L,Y02E,Y02P

Abstract:
A method of fabricating a strip CIS solar cell, comprising the steps of:providing a strip of copper of predetermined length;galvanically coating, in a continuous operation, a surface of the strip with one of indium, gallium and an alloy of indium and gallium;contact heating the coated strip to a temperature in the range from about 550.degree. C. to about 650.degree. C. within a predetermined time;contacting the coated surface with a heated carrier gas containing one of sulfur and selenium thereby to produce a CIS layer with a layer of one of copper sulfide and copper selenide thereon;selective removing said layer one of copper sulfide and copper selenide by etching;providing on the CIS layer by a sol-gel technique a p.sup.+ conductive transparent collector strip of one of copper-(l)-oxide, copper sulfides, a mixture of copper-(l)-oxides and copper sulfides, and zinc oxide.