BLUE EMITTER WITH HIGH EFFICIENCY BASED ON IMIDAZO 1,2-f PHENANTHRIDINE IRIDIUM COMPLEXES

摘要

Imidazo [1,2-f] phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency.