Matches in SemOpenAlex for { <https://semopenalex.org/work/W2743459849> ?p ?o ?g. }
- W2743459849 abstract "The recombination of charges is an important process in organic photonic devices because the process influences the device characteristics such as the driving voltage, efficiency and lifetime. By combining the dipole trap theory with the drift-diffusion model, we report that the stationary dipole moment ({mu}0) of the dopant is a major factor determining the recombination mechanism in the dye-doped organic light emitting diodes when the trap depth ({Delta}Et) is larger than 0.3 eV where any de-trapping effect becomes negligible. Dopants with large {mu}0 (e.g., homoleptic Ir(III) dyes) induce large charge trapping on them, resulting in high driving voltage and trap-assisted-recombination dominated emission. On the other hand, dyes with small {mu}0 (e.g., heteroleptic Ir(III) dyes) show much less trapping on them no matter what {Delta}Et is, leading to lower driving voltage, higher efficiencies and Langevin recombination dominated emission characteristics. This finding will be useful in any organic photonic devices where trapping and recombination sites play key roles." @default.
- W2743459849 created "2017-08-17" @default.
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- W2743459849 date "2017-08-03" @default.
- W2743459849 modified "2023-09-27" @default.
- W2743459849 title "Unveiling the Role of Dopant Polarity on the Recombination, and Performance of Organic Light-Emitting Diodes" @default.
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- W2743459849 doi "https://doi.org/10.48550/arxiv.1708.00995" @default.
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