Efficient deep-blue organic light-emitting diodes employing difluoroboron-enabled thermally activated delayed fluorescence emitters
Guijie Li, Feng Zhan, Weiwei Lou, Dan Wang, Chao Deng, Lina Cao, Yuning Yang, Qisheng Zhang, Yuanbin She
Abstract
The design and development of efficient emitters for deep-blue OLED with CIE<sub>y</sub> < 0.10 remains a challenge. A new D–π–A-BF<sub>2</sub>-type TADF emitter BF<sub>2</sub>-DMCz was developed, and the BF<sub>2</sub>-DMCz-doped deep-blue OLED achieved a peak EQE of 8.4% with CIE coordinates of (0.149, 0.083).
Topics & Concepts
OLEDCommon emitterMaterials scienceFluorescenceOptoelectronicsDeep blueDiodeDopingBlue lightPhotochemistryOpticsNanotechnologyChemistryPhysicsLayer (electronics)Organic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials