Metal‐Perturbed Multiresonance TADF Emitter Enables High‐Efficiency and Ultralow Efficiency Roll‐Off Nonsensitized OLEDs with Pure Green Gamut
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DOI: 10.1002/adma.202208378
Abstract: Multiresonance (MR)‐induced thermally activated delayed fluorescence (TADF) emitters based on B‐ and N‐embedded polycyclic aromatics are desirable for ultrahigh‐definition organic light‐emitting diodes (OLEDs) due to their high photoluminescence quantum yield (PLQY) and narrow bandwidth. But… read more here.
Keywords: tadf emitter; efficiency roll; emitter; multiresonance ... See more keywords
Manipulating Exciton Dynamics toward Simultaneous High-Efficiency Narrowband Electroluminescence and Photon Upconversion by a Selenium-Incorporated Multiresonance Delayed Fluorescence Emitter.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.2c09543
Abstract: Multiresonance thermal activated delayed fluorescence (MR-TADF) materials with an efficient spin-flip transition between singlet and triplet excited states remain demanding. Herein, we report an MR-TADF compound (BN-Se) simultaneously possessing efficient (reverse) intersystem crossing (ISC/RISC), fast… read more here.
Keywords: exciton dynamics; delayed fluorescence; high efficiency; multiresonance ... See more keywords
Improving the stability and color purity of a BT.2020 blue multiresonance emitter by alleviating hydrogen repulsion
Sign Up to like & getrecommendations! Published in 2023 at "Science Advances"
DOI: 10.1126/sciadv.adh1434
Abstract: Stable deep blue multiresonance emitters with small full width at half maximum (FWHM) are attractive for wide color-gamut organic light-emitting diodes (OLEDs). However, the steric repulsion from the spatially close hydrogens would twist the multiresonance… read more here.
Keywords: 2020 blue; color; multiresonance; emitter alleviating ... See more keywords
Tunable multiresonance using complementary circular metamaterial.
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DOI: 10.1364/ol.394137
Abstract: We present a design of a tunable infrared (IR) resonator by using complementary circular metamaterial (CCM). CCM is composed of concentric rings. It exhibits superior characteristics of narrow multiresonance generated by the coupling between two… read more here.
Keywords: multiresonance; complementary circular; circular metamaterial; using complementary ... See more keywords
Synergetic Insulation and Induction Effects Selectively Optimize Multiresonance Thermally Activated Delayed Fluorescence
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DOI: 10.34133/2022/9838120
Abstract: Multiresonance (MR) emitters featuring narrowband emissions and theoretically 100% exciton harvesting are great potential for organic light-emitting diode (OLED) applications. However, how to functionalize MR molecules without scarifying emission color purity is still a key… read more here.
Keywords: induction effects; multiresonance; effects selectively; insulation induction ... See more keywords