Synthesis and Electroluminescent Properties of Julolidine-π-Juloidine Type Materials with the Bulky Adamantane Groups

摘要

For the application of organic light-emitting diodes (OLEDs) in full-color flat panel display and solid state lighting, the highly efficient emitting materials with the suitable color purities are needed. Among those, red fluorescent emitting materials remains one of the greatest challenges for the practical application of OLEDs. Recently, a variety of red fluorescent materials including the pyran containing materials, such as 4-(dicyanomethylene)-2-methyl-6-[p-(dimethyl-amino)styryl]-4H-pyran (DCM), the arylamino-polyaromatic hydrocarbon derivatives, polyacenes and metal chelates have been widely studied.