Highly efficient multilayer organic pure-blue-light emitting diodes with substituted carbazoles compounds in the emitting layer

摘要

Bright-blue Organic-Light-Emitting-Diodes based on carbazolic-compounds as emitting layers or dopant in DPVBi matrix are described. Pure-blue light with CIE coordinates xy = (0.158;0.169) and external quantum efficiency as high as ηext = 3.3% were obtained.