Patent ID: 8440840
Filing Date: 2013-05-14
Classification: C09B,H01G,H01L,Y02E

Abstract:
1. A dye comprising an anchoring group in its molecular structure, wherein the anchoring group allows a covalent coupling of the dye to a surface, and wherein the anchoring group is represented by formula 1 wherein attachment of the anchoring group within the molecular structure of the dye is at the terminal carbon marked with an asterisk in formula 1; G is selected from the group consisting of —COOH, —SO A is selected from the group consisting of H, —CN, —NO and wherein the dye is represented by formula 2 or formula 4 wherein the chromophore is a squarylium dye derivative or a croconium dye derivative that absorbs visible light, IR light, or both visible and IR light, and the squarylium dye derivative or the croconium dye derivative has aromatic ring systems Ar