Results 21 to 30 of about 3,859 (256)

Organic thermally activated delayed fluorescence material with strained benzoguanidine donor

open access: yesBeilstein Journal of Organic Chemistry, 2023
Organic thermally activated delayed fluorescence (TADF) materials have been widely investigated due to their impressive electronic properties and applied potential for the third generation of organic light-emitting diodes (OLED).
Alexander C. Brannan   +5 more
doaj   +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

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

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

Comparative study of thermally activated delayed fluorescent properties of donor–acceptor and donor–acceptor–donor architectures based on phenoxazine and dibenzo[a,j]phenazine

open access: yesBeilstein Journal of Organic Chemistry, 2022
A new thermally activated delayed fluorescence (TADF) compound based on a donor–acceptor (D–A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized.
Saika Izumi   +8 more
doaj   +1 more source

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

Operational lifetimes of organic light-emitting diodes dominated by Förster resonance energy transfer

open access: yesScientific Reports, 2017
Organic light-emitting diodes are a key technology for next-generation information displays because of their low power consumption and potentially long operational lifetimes.
Hirohiko Fukagawa   +3 more
doaj   +1 more source

High efficiency blue organic light-emitting diodes with below-bandgap electroluminescence

open access: yesNature Communications, 2021
Thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs) rely on high triplet energy interlayers to confine excitons, which results in reduced performance.
Maria Vasilopoulou   +17 more
doaj   +1 more source

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