Patent ID: 10886475

Abstract:
The present disclosure relates to organic electroluminescent materials and organic electroluminescent devices, in particular, discloses a compound of formula (1), wherein R1, R2, R3 and R4 are each independently selected from hydrogen, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C3-20 cycloalkyl, a substituted or unsubstituted aromatic hydrocarbyl, or a substituted or unsubstituted aromatic heterocyclic group; and at least one of R1, R2, R3 and R4 contains a group having a hole-transporting ability; and at least one of R1, R2, R3 and R4 contains a group having an electron-transporting ability; A and B each independently represent hydrogen, a substituted or unsubstituted, fused aromatic ring, or a substituted or unsubstituted, fused heteroaromatic ring containing a heteroatom(s) selected from O, N and S.