Patent ID: 8563088
Filing Date: 2013-10-22
Classification: C09D,H01L,Y02E,Y02P

Abstract:
1. A method for preparing a Group 1a-1b-3a-6a material, comprising: providing a substrate; optionally, providing a Group 1a source comprising sodium; providing a selenium/Group 1b ink, comprising, as initial components: providing a Group 3a source; optionally, providing a Group 6a source; forming at least one Group 1a-1b-3a-6a precursor material on the substrate by optionally using the Group 1a source to apply sodium to the substate; using the selenium/Group 1b source to apply selenium and a Group 1b material to the substrate; using the Group 3a source to apply a Group 3a material to the substrate; optionally, using the Group 6a source to apply at least one of sulfur and selenium to the substrate; treating the precursor material to form a Group 1a-1b-3a-6a material having a formula Na wherein X is at least one Group 1b element selected from the group consisting of copper and silver, Y is at least one Group 3a element selected the group consisting of aluminum, gallium and indium; 0≦L≦0.75; 0.25≦m≦1.5; n is 1; 0≦p<2.5; 0<q≦2.5; and, 1.8≦(p+q)≦2.5.