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- W4319985461 abstract "Abstract The use of thermally activated delayed fluorescence (TADF) emitters and emitters that show preferential horizontal orientation of their transition dipole moment (TDM) are two emerging strategies to enhance the efficiency of OLEDs. We present the first example of a liquid crystalline multi‐resonance TADF (MR‐TADF) emitter, DiKTa‐LC . The compound possesses a nematic liquid crystalline phase between 80 °C and 110 °C. Importantly, the TDM of the spin‐coated film shows preferential horizontal orientation, with an anisotropy factor, a , of 0.28, which is preserved in doped poly(vinylcarbazole) films. Green‐emitting ( λ EL =492 nm) solution‐processed OLEDs based on DiKTa‐LC showed an EQE max of 13.6 %. We thus demonstrate for the first time how self‐assembly of a liquid crystalline TADF emitter can lead to the so‐far elusive control of the orientation of the transition dipole in solution‐processed films, which will be of relevance for high‐performance solution‐processed OLEDs." @default.
- W4319985461 created "2023-02-11" @default.
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- W4319985461 date "2023-03-08" @default.
- W4319985461 modified "2023-10-17" @default.
- W4319985461 title "Mesogenic Groups Control the Emitter Orientation in Multi‐Resonance TADF Emitter Films**" @default.
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- W4319985461 doi "https://doi.org/10.1002/ange.202218911" @default.
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