A BIS(AZINYL) METHENE BORON COMPLEX USED AS AN EMISSIVE DOPANT IN AN ORGANIC LIGHT EMITTING DEVICE

摘要

Disclosed is an OLED device comprising a light-emitting layer containing a light emitting bis(azinyl)methene boron complex compound having one of the following structures and comprising a complex system of at least five fused rings and bearing, on at least one ring carbon or nitrogen, a substituent sufficient to provide a wavelength of maximum emission of less than 520nm as measured at a concentration of 10-3M in ethyl acetate solvent. Formulae I and II, wherein each Xa, Xb, Xc, and Xd is an independently selected substituent, two of which may join to form a fused ring and which may include further fused ring substitution; m and n are independently 0 to 2; o and p are independently 0 to 4; Y is H or a substituent; Za and Zb are independently selected substituents.