651329-81-6Relevant articles and documents
External quantum efficiency above 20% in deep blue phosphorescent organic light-emitting diodes
Jeon, Soon Ok,Jang, Sang Eok,Son, Hyo Suk,Lee, Jun Yeob
, p. 1436 - 1441 (2011)
Highly efficient deep blue phosphorescent organic light-emitting diodes (PHOLEDs) with external quantum efficiency above 20% are developed using a bipolar-type high-triplet-energy host material and a high-triplet-energy exciton blocking material. Maximum quantum efficiency of 25.1% and low roll-off (still 23.1% at 1000 cd m-2) are achieved in these deep blue PHOLEDs. Copyright