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Thermally Activated Delayed Fluorescence via Triplet Fusion
The Journal of Physical Chemistry Letters, 2019Manipulating triplet states is technically intriguing for organic semiconductors and photochemical conversion. Sensitized photon upconversion that converts low-energy photons into higher-energy ones via triplet fusion holds great potential in augmentation of photovoltaic devices and photocatalysis. Conventional requirement of exothermic triplet-triplet
Li Li +6 more
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Thermally Activated Delayed Fluorescence from Pentacarbazorylbenzonitrile
Chemistry Letters, 2016A benzonitrile derivative substituted by five carbazoles (5CzBN), which emits thermally activated delayed fluorescence (TADF), was synthesized and evaluated. The organic light-emitting diode (OLED) containing 5CzBN demonstrated light-blue electroluminescence and a high external quantum efficiency of 14.8%.
Shuho Tanimoto +3 more
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Benzofuropyridine-Based Highly Efficient Thermally Activated Delayed Fluorescence Emitters
Journal of Nanoscience and Nanotechnology, 2018Novel thermally activated delayed fluorescence (TADF) materials with benzofuro[2,3-b]pyridine (BFPd) as an electron acceptor and carbazole derivatives [carbazole (Cz), 1,3,6,8-tetramethyl-9H-carbazole (tmCz), and 9'H-9,3':6',9''-tercarbazole (terCz)] as electron donors are designed, and their electronic and optical properties are investigated ...
Geon Hyeong, Lee, Young Sik, Kim
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Journal of Materials Chemistry C, 2019
A molecular design approach adopting secondary electron accepting units in addition to a main electron acceptor was investigated as a strategy to manage the thermally activated delayed fluorescent (TADF) performance of the emitters.
Ha Lim Lee +3 more
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A molecular design approach adopting secondary electron accepting units in addition to a main electron acceptor was investigated as a strategy to manage the thermally activated delayed fluorescent (TADF) performance of the emitters.
Ha Lim Lee +3 more
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Recent advances in organic thermally activated delayed fluorescence materials
Chemical Society Reviews, 2017Thermally activated delayed fluorescence: harvesting dark triplet excitons to generate bright emissive singlet excitons.
Zhiyong Yang +8 more
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Thermally activated delayed fluorescence with circularly polarized luminescence characteristics
Chemical Communications, 2015A metal-free aromatic compound exhibiting thermally activated delayed fluorescence as well as circularly polarized luminescence (CPL) with dissymmetry factors of 10−3 is reported. This compound shows a sign inversion between its circular dichroism signal and CPL, which is caused by a large conformational change upon photoexcitation.
Takuro, Imagawa +4 more
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Nido‐Carboranes: Donors for Thermally Activated Delayed Fluorescence
Angewandte Chemie, 2018AbstractAn approach to the design of nido‐carborane‐based luminescent compounds that can exhibit thermally activated delayed fluorescence (TADF) is proposed. 7,8‐Dicarba‐nido‐undecaboranes (nido‐carboranes) having various 8‐R groups (R=H, Me, i‐Pr, Ph) are appended to the meta or para position of the phenyl ring of the dimesitylphenylborane (PhBMes2 ...
Nguyen Van Nghia +6 more
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Purely Organic Crystals Exhibit Bright Thermally Activated Delayed Fluorescence
Angewandte Chemie, 2019AbstractThermally activated delayed fluorescent (TADF) materials generally suffer from severe concentration quenching. Efficient non‐doped TADF emitters are generally highly twisted aromatic amine‐based compounds with isolated chemical moieties. Herein we demonstrate that co‐facial packing and strong π–π intermolecular interactions give rise to bright ...
Xinyi Cai +7 more
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Thermally activated delayed fluorescence
2023Leonardo Evaristo de Sousa +1 more
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Photocatalytic Mechanisms of Organic Thermally Activated Delayed Fluorescence Compounds
The Journal of Physical Chemistry LettersReverse intersystem crossing (RISC) has become possible by minimizing the energy gap between the first excited singlet (S1) and triplet state (T1), which facilitates the thermally activated delayed fluorescence (TADF). Due to the small singlet-triplet energy gap, the S1 and T1 states exhibit comparable redox reactivity, leading organic TADF compounds ...
Jiawen Zhang +8 more
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