Patent ID: 8465679

Claim:
A method for making a material comprising, (a) providing one or more CA(I,G,A)S, CAIGAS, A(I,G,A)S, AIGAS, C(I,G,A)S, CIGAS, CAIAS, CAGAS, AIAS, AGAS, CIAS, or CGAS polymeric precursor compounds or inks thereof comprising repeating unit structures {M B (ER)(ER)} and {M A (ER)(ER)}; (b) providing a substrate; (c) depositing the compounds or inks onto the substrate; and (d) heating the substrate at a temperature of from about 20° C. to about 650° C. in an inert atmosphere, thereby producing a material; wherein M A is Cu or Ag and M B is In, Ga or Al, each E is S, Se or Te, and R represents R groups independently selected from alkyl, aryl, heteroaryl, alkenyl, amido, silyl, and inorganic and organic ligands.