| 主权项 |
1. A thermally activated delayed fluorescent composition having the general formula of: where: independently represents one or more acceptor moieties of the compound that contributes to LUMO level of the compound, where An is nitrogen-containing heteroaryl group, a RqMO group, where M is C, S, P, or As, or a RqSO2 group, or any combination thereof; and n=1, 2, or 3; L1, L2, and L3 are each independently linkage groups comprising a carbon (C) containing linker, or a silicon (Si) containing linker; and Rm, Rn, Rp Rq, and Rq′ each independently represent mono-, di-, tri, or tetra-substitution, and each independently are one or more of a hydrogen atom, a deuterium atom, a halogen atom, a hydroxyl group, a thiol group, a nitro group, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted haloalkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted amino group, a substituted or unsubstituted mono- or dialkylamino group, a substituted or unsubstituted mono- or diarylamino group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted heteroaryl group, an alkoxycarbonyl group, an acyloxy group, an acylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfonylamino group, a sulfamoyl group, a carbamoyl group, an alkylthio group, a sulfinyl group, a ureido group, a phosphoramide group, a mercapto group, a sulfo group, a carboxyl group, a hydrazino group, a substituted silyl group, a polymeric group, or a combination thereof. |
