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- W2940149712 abstract "A new solution processable cruciform tetraphenylsilane-based bipolar host material, bis(4-(9H-carbazol-9-yl)phenyl)bis(4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)silane (SiCT), was designed and synthesized. Two carbazoles as donors and two diphenyl triazine moieties as acceptors were tethered to the tetraphenylsilane. SiCT showed great solubility in common organic solvents, high thermal stability, high triplet energy (T1 ∼3.0 eV), and a superior bipolar electronic nature, which are sufficient for it to function as a host material in thermally activated delayed fluorescence organic light emitting diodes (TADF-OLEDs). Consequently, the solution-processed green TADF-OLEDs employed SiCT as a bipolar host exhibited a low turn-on voltage and high external quantum efficiency (EQE) of 19.17% with a high power efficiency (PE) of 41.13 lm W−1, while control device based-on SiC as unipolar host showed a low EQE of 12.74% with a low PE of 16.13 lm W−1. This work highlights the potential of a bipolar tetraphenylsilane derivative as a host material in solution-processable green TADF-OLEDs." @default.
- W2940149712 created "2019-04-25" @default.
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- W2940149712 date "2019-08-01" @default.
- W2940149712 modified "2023-10-05" @default.
- W2940149712 title "2D-σ-2A type cruciform host material with silane core for highly efficient solution-processable green thermally activated delayed fluorescence organic light emitting diodes" @default.
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- W2940149712 doi "https://doi.org/10.1016/j.dyepig.2019.04.014" @default.
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