Electroluminescent device containing borondiketonate emitter

摘要

An OLED device comprises a light-emitting layer containing a hydrocarbon host material and a light-emitting material of Formula (1): wherein: each Ar represents an independently selected aromatic group; each R¹ represents an independently selected alkyl group or aromatic group; n is 1 or 2; Z^a represents the atoms necessary to form an aromatic ring group; R represents hydrogen or a substituent group; Z represents hydrogen or a substituent group; and L¹ and L² represent independently selected substituent groups; provided that any two adjacent substituents of any of the above groups may join to form a ring.