Color tunable organic light-emitting devices with external quantum efficiency over 20% based on strongly luminescent
Gang Cheng1, Kaai Tung Chan, Wai-Pong To
1State Key Laboratory of Synthetic Chemistry, Institute of Molecular Functional Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun1, 30012, China; HKU Shenzhen Institute of Research and Innovation, Shenzhen, 518053, China.
Abstract:
Gold(III) complexes supported by C-deprotonated fluorene-C^N^C ligands having high emission quantum yield up to 0.61 and long-lived emissive excited states are used as yellow emitters in color tunable PLEDs and OLEDs. High EQEs of 13.16% and 22.02% are achieved in the best PLED and OLED, respectively.
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