Chemistry Letters, Vol.40, No.3, 306-308, 2011
An alpha-Carboline-containing Host Material for High-efficiency Blue and Green Phosphorescent OLEDs
An alpha-carboline derivative, 9,9'-m-phenylenedi-alpha-carboline (mCaP) was designed and synthesized as a host material for phosphorescent OLEDs. By using a combination with phosphorescent emitters such as FIrpic and Ir(ppy)(3), we have successfully developed high-performance OLEDs with a power efficiency (eta(p,100)) at 100 cd m(-2) of 37 lm W-1 for blue, and 94 lm W-1 for green, respectively.