Results 31 to 40 of about 6,698 (296)

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

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

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   +1 more source

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

Azaborine as a Versatile Weak Donor for Thermally Activated Delayed Fluorescence

open access: yesACS Applied Materials & Interfaces, 2023
Extensive research has been devoted to the development of thermally activated delayed fluorescence emitters, especially those showing pure-blue emission for use in lighting and full-color display applications. Toward that goal, herein we report a novel weak donor, 1,4-azaborine (AZB), with complementary electronic and structural properties compared to ...
Pagidi Sudhakar   +6 more
openaire   +4 more sources

Enhancing thermally activated delayed fluorescence by fine-tuning the dendron donor strength

open access: yes, 2021
Thermally activated delayed fluorescence (TADF) relies on a small energy gap between the emissive singlet and the non-emissive triplet state, obtained by reducing the wavefunction overlap between donor and acceptor moieties.
Alexandra M. Z. , Slawin   +11 more
core   +1 more source

Saturated Red Electroluminescence From Thermally Activated Delayed Fluorescence Conjugated Polymers

open access: yesFrontiers in Chemistry, 2020
Two sets of conjugated polymers with anthraquinone groups as pendant acceptors were designed and synthesized. The acceptor is tethered to an diphenylamine group via a phenylene bridge, constructing a thermally activated delayed fluorescence (TADF) unit ...
Hongmei Zhan   +8 more
doaj   +1 more source

Photophysics of thermally activated delayed fluorescence molecules

open access: yesMethods and Applications in Fluorescence, 2017
Thermally activated delayed fluorescence (TADF) has recently emerged as one of the most attractive methods for harvesting triplet states in metal-free organic materials for application in organic light emitting diodes (OLEDs). A large number of TADF molecules have been reported in the literature with the purpose of enhancing the efficiency of OLEDs by ...
Fernando B Dias   +2 more
openaire   +4 more sources

Persistent Dimer Emission in Thermally Activated Delayed Fluorescence Materials [PDF]

open access: yesThe Journal of Physical Chemistry C, 2019
We expose significant changes in the emission color of carbazole-based thermally activated delayed fluorescence (TADF) emitters that arise from the presence of persistent dimer states in thin films and organic light-emitting diodes (OLEDs). Direct photoexcitation of this dimer state in 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) reveals
Marc K. Etherington   +13 more
openaire   +6 more sources

Electron-withdrawing Group Modified Carbazolophane Donors for Deep Blue Thermally Activated Delayed Fluorescence OLEDs

open access: yes, 2021
We report two blue-emitting thermally activated delayed fluorescence (TADF) compounds employing a substituted carbazolophane (Czp) donor (indolo[2.2]paracyclophane).
Zhen, Zhang   +8 more
core   +1 more source

Insights into enhanced electrochemiluminescence of a multiresonance thermally activated delayed fluorescence molecule

open access: yesSmartMat, 2023
The electrochemiluminescence (ECL) behavior of a multiresonance thermally activated delayed fluorescence molecule has been investigated for the first time by means of ECL‐voltage curves, newly designed ECL‐time observatory, and ECL spectroscopy.
Liuqing Yang   +6 more
doaj   +1 more source

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