Carbazole/Benzimidazole-Based Bipolar Molecules as the Hosts for Phosphorescent and Thermally Activated Delayed Fluorescence Emitters for Efficient OLEDs
Zhen-Jie Gao, Tzu‐Hung Yeh, Jingjie Xu, Chih‐Chien Lee, Anuradha Chowdhury, Bo-Cheng Wang, Shun‐Wei Liu, Chih‐Hsin Chen
Abstract
CbzBiz with the host of a green TADF emitter, i.e., 4CzIPN. Moreover, these devices exhibited lower efficiency roll-off than the CBP-hosted device using the same emitters, which demonstrated the bipolar charge carrier property of carbazole/benzimidazole-based molecules.
Topics & Concepts
CarbazoleOLEDPhosphorescenceBenzimidazoleCommon emitterMaterials scienceFluorescenceHOMO/LUMOMoleculeQuantum efficiencyPhotochemistryAcceptorOptoelectronicsChemistryNanotechnologyOrganic chemistryPhysicsOpticsLayer (electronics)Condensed matter physicsOrganic Light-Emitting Diodes ResearchOrganic Electronics and PhotovoltaicsLuminescence and Fluorescent Materials