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- W4387209905 abstract "Organic light-emitting diodes (OLEDs) using conventional fluorescent emitters are currently attracting considerable interests due to outstanding stability and abundant raw materials. To construct high-performance narrowband fluorophores to satisfy requirements of ultra-high-definition displays, a strategy fusing multi-resonance BN-doped moieties to naphthalene is proposed to construct two novel narrowband fluorophores. Green Na-sBN and red Na-dBN, manifest narrow full-width at half-maxima of 31 nm, near-unity photoluminescence quantum yields and molecular horizontal dipole ratios above 90 %. Their OLEDs exhibit the state-of-the-art performances including high external quantum efficiencies (EQE), ultra-low efficiency roll-off and long operational lifetimes. The Na-sBN-based device achieves EQE as high as 28.8 % and remains 19.8 % even at luminance of 100,000 cd m-2 , and Na-dBN-based device acquires a record-high EQE of 25.2 % among all red OLEDs using pure fluorescent emitters." @default.
- W4387209905 created "2023-10-01" @default.
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- W4387209905 date "2023-10-13" @default.
- W4387209905 modified "2023-10-15" @default.
- W4387209905 title "Narrowband Fluorescent Emitters Based on BN‐Doped Polycyclic Aromatic Hydrocarbons for Efficient and Stable Organic Light‐emitting Diodes" @default.
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- W4387209905 doi "https://doi.org/10.1002/anie.202312666" @default.
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