Substituent engineering of the diboron molecular architecture for a nondoped and ultrathin emitting layer
Tien‐Lin Wu, Jian Lei, Chia‐Min Hsieh, Yi-Kuan Chen, Pei-Yun Huang, Po‐Ting Lai, Tsu‐Yu Chou, Wei-Chen Lin, Wei Chen, Chi‐Hua Yu, Liang‐Yan Hsu, Hao‐Wu Lin, Chien‐Hong Cheng
Abstract
BuCzDBA film with a high horizontal ratio of 92% is employed to achieve a nondoped OLED with an excellent external quantum efficiency of 26.9%. In addition, we demonstrated the first ultrathin emitting layer (1 nm) TADF device, which exhibited outstanding power efficiency. This molecular design and high-performance devices show the potential of power-saving and economical fabrication for advanced OLEDs.
Topics & Concepts
OLEDMaterials scienceQuenching (fluorescence)StackingOptoelectronicsElectroluminescenceCommon emitterDipoleExcitonLayer (electronics)NanotechnologyFluorescenceChemistryOrganic chemistryOpticsQuantum mechanicsPhysicsOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials