Patent ID: 8586764

Claim:
An organic dye having chemical formula 1: wherein, R 1 is Formula E wherein R 7 and R 8 are independently any one group selected from hydrogen atom, hydrocarbonoxy, hydrocarbonthio, hydrocarbyl, halogenated hydrocarbyl, hydroxyl, or amido; and R 2 is Formula G wherein, R 13 -R 19 are any one group selected from hydrogen atom, hydrocarbyl, hydrocarbonoxy, hydrocarbonthio, or halogenated hydrocarbyl; X and Z are independently selected from O, S, Se, or Te; n is an integer equal to or greater than 1 but equal or less than 10; A is a electron withdrawing group, which is any one selected from cyano, halogenated hydrocarbyl, nitro, carboxyl, acyl, aldehyde group, amide group, or sulfonic group; C is any one selected from carboxyl, amide group, phosphite, hypophosphite, sulfonate, hydroxyl, peroxy carboxylate, borate, or squarate.