Results 211 to 220 of about 4,660 (240)
Advanced MaterialsAbstractHere the utility and potential of an emitter design are demonstrated, consisting of a narrowband‐emitting multiresonant thermally activated delayed fluorescent (MR‐TADF) core that is decorated with a suitably higher energy donor‐acceptor TADF moiety.
Dongyang Chen, , Eli Zysman-Colman
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The Journal of Physical Chemistry Letters, 2022
Organic light-emitting diodes (OLEDs) still face a significant challenge in finding blue thermally activated delayed fluorescence (TADF) emitters that can achieve narrowband emission and high efficiency. In this work, we successfully design and synthesize a novel kind of TADF emitters based on rigid sulfur/oxygen-bridged triarylboron acceptor for ...
Honglei Gao +9 more
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Organic light-emitting diodes (OLEDs) still face a significant challenge in finding blue thermally activated delayed fluorescence (TADF) emitters that can achieve narrowband emission and high efficiency. In this work, we successfully design and synthesize a novel kind of TADF emitters based on rigid sulfur/oxygen-bridged triarylboron acceptor for ...
Honglei Gao +9 more
openaire +2 more sources
2021
TADF (Thermally Activated Delayed Fluorescence) is recognized as the third generation of OLED-emitting technology, which provides highly efficient emission without using any rare metals, such as iridium. Fundamental molecule design strategies of TADF were based on the introduction of electron donor and acceptor units in which the π-conjugation was ...
Junji Adachi, Hisashi Okada
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TADF (Thermally Activated Delayed Fluorescence) is recognized as the third generation of OLED-emitting technology, which provides highly efficient emission without using any rare metals, such as iridium. Fundamental molecule design strategies of TADF were based on the introduction of electron donor and acceptor units in which the π-conjugation was ...
Junji Adachi, Hisashi Okada
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Acceptor modulation for blue and yellow TADF materials and fabrication of all-TADF white OLED
Materials Chemistry Frontiers, 20224,4′-(4-Phenylpyridine-2,6-diyl)dibenzonitrile is designed as an acceptor to develop a sky-blue TADF emitter that exhibits a fluorescence rate constant of 107 s−1 and high EQEs of 25.6% and 18.5% in sky-blue and all-TADF white organic light-emitting diodes.
Ruizhi Dong +6 more
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ChemPhysChem, 2023
AbstractOrganic light‐emitting diodes (OLEDs) have become one of the most popular lighting technologies since they offer several advantages over conventional devices. In carbazole‐benzophenone (CzBP) OLED devices, the polymeric form of the compound is previously reported to be Thermally Activated Delayed Fluorescence (TADF)‐active (ΔEST ≈0.12 eV ...
Aparna G. Nair +4 more
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AbstractOrganic light‐emitting diodes (OLEDs) have become one of the most popular lighting technologies since they offer several advantages over conventional devices. In carbazole‐benzophenone (CzBP) OLED devices, the polymeric form of the compound is previously reported to be Thermally Activated Delayed Fluorescence (TADF)‐active (ΔEST ≈0.12 eV ...
Aparna G. Nair +4 more
openaire +2 more sources
TADF sensitization targets deep-blue
Nature Photonics, 2021Two independent studies employing the same narrowband deep-blue emitter, ν-DABNA, but different energy transfer schemes, achieve efficient and stable deep-blue electroluminescence.
Dongdong Zhang, Lian Duan
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Intermolecular TADF: bulk and interface exciplexes
Journal of Materials Chemistry C, 2022Intermolecular TADF including bulk and interface exciplexes, can be used as emitters to achieve high efficiency, and also as hosts to extend the device lifetime by reducing the triplet exciton concentration and improving charge balance.
Jiannan Gu +6 more
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Angewandte Chemie - International Edition
AbstractLow‐cost molecular emitters that merge circularly polarized luminescence (CPL) and thermally activated delayed fluorescence (TADF) properties are attractive for many high‐tech applications. However, the design of such emitters remains a difficult task.
Lingqiang Meng
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AbstractLow‐cost molecular emitters that merge circularly polarized luminescence (CPL) and thermally activated delayed fluorescence (TADF) properties are attractive for many high‐tech applications. However, the design of such emitters remains a difficult task.
Lingqiang Meng
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Exciplex: An Intermolecular Charge-Transfer Approach for TADF
ACS Applied Materials & Interfaces, 2018Organic materials that display thermally activated delayed fluorescence (TADF) are a striking class of functional materials that have witnessed a booming progress in recent years. In addition to pure TADF emitters achieved by the subtle manipulations of intramolecular charge transfer processes with sophisticated molecular structures, a new class of ...
Monima Sarma, Ken-Tsung Wong
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Understanding the Fluorescence of TADF Light-Emitting Dyes
The Journal of Physical Chemistry A, 2016In order to afford in a controlled fashion fine-tuning of the color and the intensity of the emitted light of potential fluorophores for organic light-emitting diodes (OLED), directed molecular design based on a donor-spacer-acceptor model is undertaken. One way of increasing emission efficiency is triplet harvesting.
Valchanov, G. +4 more
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