LIGAND COMPOUND, COMPLEX AND USE THEREOF

The present application provides a ligand compound. The structure of the ligand compound is X-Y-L-(Z)n, wherein X is HOOC-, NH2-, HOOOP-, HSS-, or HS-; Y is at least one of a single bond, an aliphatic organic group, an aromatic organic group, and an organic group containing at least one of an ester group, an ether group, a carbonyl group, and an amide group; L is an atom or an organic group for forming at least three chemical bonds; Z is an organic group of which an end capping group is a crosslinkable group; and n is an integer greater than or equal to 2. The present application further provides a complex comprising the ligand compound and a solution of the complex, a patterned light-emitting layer using the complex and a preparation method for the patterned light-emitting layer, an apparatus using the patterned light-emitting layer, and an electronic device. The ligand compound has high photosensitive activity, and can reduce an exposure dose, and shorten an exposure duration, thereby improving the patterni