Patent ID: 8309179

Claim:
A selenium/Group 1b ink, comprising, as initial components: a selenium component comprising selenium; an organic chalcogenide component having a formula selected from the group consisting of RZ—Z′R′ and R 2 —SH; wherein Z and Z′ are each independently selected from the group consisting of sulfur, selenium and tellurium; wherein R is selected from the group consisting of H, C 1-20 alkyl group, a C 6-20 aryl group, a C 1-20 alkylhydroxy group, an arylether group and an alkylether group; wherein R′ and R 2 are selected from a C 1-20 alkyl group, a C 6-20 aryl group, a C 1-20 alkylhydroxy group, an arylether group and an alkylether group; a Group 1b component, comprising at least one Group 1b material selected from the group consisting of copper and silver complexed with a multidentate ligand; wherein the Group 1 component comprises a copper (II) complex and a multidentate ligand selected from the group consisting of diethylenetriamine; tris(2-aminoethyl)amine; triethylenetertramine; tetraethylenepentamine and tetramethylguanidine; a liquid carrier, wherein the liquid carrier is selected from the group consisting of ethylene diamine; diethylenetriamine; tris(2-aminoethyl)amine; triethylenetetramine; n-butylamine; n-hexylamine; octylamine; 2-ethyl-1-hexylamine; 3-amino-1-propanol; 1,3-diaminopropane; 1,2-diaminopropane; 1,2-diaminocyclohexane; pyridine; pyrrolidine; 1-methylimidazole; tetramethylguanidine and mixtures thereof; wherein the selenium/Group 1b ink is a stable; wherein the selenium and the Group 1b material do not form a precipitate during storage of the selenium/Group 1b ink at 22° C. under nitrogen for a period of at least sixteen (16) hours.