The present invention relates to organic electroluminescent devices, the emitting layer thereof containing a blend of a luminescent material having a narrow singlet-triplet gap and a fluorescent emission material having high steric shielding.
本发明涉及有机电致发光器件,其中发光层包含具有狭窄单重-三重能隙的
发光材料和具有高立体屏蔽的荧光发射材料的混合物。