Binuclear platinum complex luminescent material and application thereof

A binuclear platinum complex being a compound having a structure of formula (I):

• wherein:
• X1 to X12 are each independently selected from N or CR;
• A is selected from CR1 R2, NR3, O, S, or Se;
• R, R1, R2, and R3 are each independently selected from the following groups:
• hydrogen, deuterium, halogen, amino group, C1-C20 alkylcarbonyl, carboxyl, aldehyde, C1-C20 thioalkyl, cyano group, sulfonyl, phosphino group, substituted or unsubstituted alkyl having 1 to 20 carbon atoms, substituted or unsubstituted cycloalkyl having 3 to 20 ring carbon atoms, substituted or unsubstituted alkenyl having 2 to 20 carbon atoms, substituted or unsubstituted alkoxy having 1 to 20 carbon atoms, substituted or unsubstituted aryl having 6 to 30 carbon atoms, or substituted or unsubstituted heteroaryl having 3 to 30 carbon atoms;
• or any two adjacent R, R1, R2, and R3 are connected to form a ring;
• the heteroatom in the heteroaryl group is one or more of N, S, or O;
• the substitution is by halogen, amino group, cyano group, C6-C12 aryl, or C1-C4 alkyl.