Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322738937> ?p ?o ?g. }
- W4322738937 abstract "Electroluminescence occurs via recombination reactions between electrons and holes, but these processes have not been directly evaluated. Here, we explore the operation dynamics of ionic liquid-based light-emitting electrochemical cells (LECs) with stable electroluminescence by multi-timescale spectroscopic measurements synchronized with the device operation. Bias-modulation spectroscopy, measuring spectral responses to modulated biases, reveals the bias-dependent behavior of p-doped layers varying from growth to saturation and to recession. The operation dynamics of the LEC is directly visualized by time-resolved bias-modulation spectra, revealing the following findings. Electron injection occurs more slowly than hole injection, causing delay of electroluminescence with respect to the p-doping. N-doping proceeds as the well-grown p-doped layer recedes, which occur while the electroluminescence intensity remains constant. With the growth of n-doped layer, hole injection is reduced due to charge balance, leading to hole-accumulation on the anode, after which LEC operation reaches equilibrium. These spectroscopic techniques are widely applicable to explore the dynamics of electroluminescence-devices." @default.
- W4322738937 created "2023-03-03" @default.
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- W4322738937 date "2023-03-01" @default.
- W4322738937 modified "2023-10-02" @default.
- W4322738937 title "Visualizing electroluminescence process in light-emitting electrochemical cells" @default.
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- W4322738937 doi "https://doi.org/10.1038/s41467-023-36472-6" @default.
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