Patent ID: 8282995

Claim:
A selenium/Group 1b/Group 3a ink, comprising: (a) a selenium/Group 1b/Group 3a system which comprises a combination of, as initial components: a selenium; an organic chalcogenide component: comprising at least one organic chalcogenide having a formula selected from RZ—Z′R′ and R 2 —SH; wherein Z and Z′ are 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 hydroxyalkyl group, a C 1-20 mercaptoalkyl group and an ether group; wherein R′ and R 2 are selected from the group consisting of a C 1-20 alkyl group, a C 6-20 aryl group, a C 1-20 hydroxyalkyl group, a C 1-20 mercaptoalkyl group and an ether group; a Group 1b containing substance comprising, as an initial component, at least one of CuCl 2 and Cu 2 O; a bidentate thiol component, wherein the bidentate thiol component is selected from the group consisting of 1,2-dimercaptoethane; 1,3-dimercaptopropane; beta-mercaptoethanol and dimercaptol; a Group 3a containing substance comprising, as an initial component: a Group 3a material selected from the group consisting of aluminum, indium, gallium and combinations thereof; and, (b) a liquid carrier component; wherein the selenium/Group 1b/Group 3a system is stably dispersed in the liquid carrier component.