| abstract |
The present invention provides a compound with a D-π-A type chemical structure, the compound has a structure shown in chemical formula I; D 1 and D 2 represent electron donating groups; m, n, p and q are independently selected from 0 , 1 or 2; X and Y are independently selected from a kind of S atom, N atom, O atom, Si atom, C atom; D 1 and D 2 are independently selected from substituted or unsubstituted C12-C40 Carbazolyl and its derivative group, substituted or unsubstituted C12-C40 diphenylamine group and its derivative group, substituted or unsubstituted C18-C60 triphenylamine group and its derivative group, C12- At least one of the acridine group of C40 and its derivative groups; A 1 and A 2 represent electron accepting groups, and A 1 and A 2 are selected from nitrogen-containing heterocyclic substituents, cyano-containing substituents , at least one of arylboron-based substituents, carbonyl-containing substituents, fluorine-containing substituents, sulfone-based substituents and phosphorus-containing oxy-based substituents. The present invention forms a D-π-A type structure by connecting an electron donating group and an electron accepting group on the aromatic heterocyclic parent nucleus. |