Results 31 to 40 of about 1,912,047 (291)

Confining donor conformation distributions for efficient thermally activated delayed fluorescence with fast spin-flipping

open access: yesNature Communications, 2023
Fast spin-flipping is the key to exploit the triplet excitons in thermally activated delayed fluorescence based organic light-emitting diodes toward high efficiency, low efficiency roll-off and long operating lifetime.
Weidong Qiu   +18 more
doaj   +1 more source

Thermally activated delayed fluorescence materials for CO2 reduction

open access: yesNext Energy, 2023
During the past decades, massive CO2 emission has caused serious environmental issues including global warming and climate change. To solve this problem, chemists tried to directly convert CO2 to high-value-added chemicals through photocatalytic methods.
Zhengqiu Wu   +3 more
doaj   +1 more source

Intramolecular Through-Space Charge-Transfer Emitters Featuring Thermally Activated Delayed Fluorescence for High-Efficiency Electroluminescent Devices [PDF]

open access: yes, 2021
Through-space charge-transfer (TSCT) emitters have been extensively explored for thermally activated delayed fluorescence (TADF), but arranging various donors and acceptors into rigid cofacial conformations for various efficient TSCT TADF emitters has ...
lei, he   +3 more
core   +2 more sources

Thermally Activated Delayed Fluorescence in Fullerenes [PDF]

open access: yesAnnals of the New York Academy of Sciences, 2008
This report reviews the thermally activated delayed fluorescence (TADF) displayed by fullerenes. From the analysis of the steady‐state data, time‐resolved data, or by a combination of both, it is possible to determine several important photophysical parameters of fullerenes.
Carlos, Baleizão   +1 more
openaire   +2 more sources

Lock-and-Key Exciplexes for Thermally Activated Delayed Fluorescence

open access: yesOrganic Materials, 2020
We combine synthetic supramolecular chemistry and materials science to develop novel exciplexes for thermally activated delayed fluorescence. Our approach starts from a bowl-shaped acceptor molecule for which we synthesize tailor-made donors that bind in
Constantin-Christian A. Voll   +11 more
doaj   +1 more source

Benzoate-based thermally activated delayed fluorescence materials

open access: yesRSC Advances, 2023
DMAC-MBZ and PTZ-MBZ exhibited TADF properties with the lifetime of 2.17 and 0.80 μs, respectively.
Liang Zhang   +8 more
openaire   +2 more sources

Donor–Acceptor Iptycenes with Thermally Activated Delayed Fluorescence [PDF]

open access: yesEuropean Journal of Organic Chemistry, 2017
A new donor–acceptor iptycene containing carbazole donors and a thiadiazoloquinoxaline acceptor was synthesized and its photo‐ and electrochemical properties evaluated. The key intermediate 1 allows a lateral modification through cross‐coupling, and the (triisopropylsilyl)acetylene product 2 exhibits bright yellow fluorescence with emission lifetimes ...
Constantin‐Christian A. Voll   +4 more
openaire   +3 more sources

Diindolocarbazole – Achieving Multiresonant Thermally Activated Delayed Fluorescence Without The Need for Acceptor Units [PDF]

open access: yes, 2021
In this work we present a new multi-resonance thermally activated delayed fluorescence (MR-TADF) emitter paradigm, demonstrating that the structure need not require the presence of acceptor atoms.
Yoann, Olivier   +11 more
core   +2 more sources

Ultra‐Narrowband Blue Multi‐Resonance Thermally Activated Delayed Fluorescence Materials

open access: yesAdvanced Science, 2023
Ultra‐narrowband blue multi‐resonance‐induced thermally activated delayed fluorescence (MR‐TADF) materials (V‐DABNA and V‐DABNA‐F), consisting of three DABNA subunits possessing phenyl or 2,6‐difluorophenyl substituents on the peripheral nitrogen atoms ...
Susumu Oda   +5 more
doaj   +1 more source

Thermally Activated Delayed Fluorescence and High-contrast Mechanochromism of Anthrone-Based Donor-Acceptor Systems [PDF]

open access: yes, 2023
The development of materials that emit in the deep red to near-infrared region of the spectrum has attracted significant attention on account of their potential as optical sensing and imaging reagents in biology.
Alexandra, Slawin   +2 more
core   +2 more sources

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