Results 21 to 30 of about 17,454 (292)

Enhancing operational stability of OLEDs based on subatomic modified thermally activated delayed fluorescence compounds

open access: yesNature Communications, 2023
The realization of operationally stable blue organic light-emitting diodes is a challenging issue across the field. While device optimization has been a focus to effectively prolong device lifetime, strategies based on molecular engineering of chemical ...
Sinyeong Jung   +13 more
doaj   +1 more source

Hydrogen-bonding environment suppresses thermally activated delayed fluorescence. [PDF]

open access: yesChem Sci
Thermally activated delayed fluorescence (TADF) is a promising innovation in display technology where the nonemissive triplet excitons can be thermally converted back into emissive singlet excitons through reverse intersystem crossing....
Puhan SS, Dash L, Roy P.
europepmc   +2 more sources

Synthesis and Luminescence Modulation of Pyrazine-Based Gold(III) Pincer Complexes [PDF]

open access: yes, 2015
The first examples of pyrazine-based gold(III) pincer complexes have been synthesized; their intense photoemissions can be modified by interactions with the non-coordinating pyrazine-N atom.
Au   +32 more
core   +1 more source

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

Scale-up chemical synthesis of thermally-activated delayed fluorescence emitters based on the dibenzothiophene-S,S-dioxide core [PDF]

open access: yes, 2017
We report a procedure to linearly scale-up the synthesis of 2,8-bis(3,6-di-tert-butyl-9H-carbazol-9-yl)dibenzothiophene-S,S-dioxide (compound 4) and 2,8-bis(10H-phenothiazin-10-yl)dibenzothiophene-S,S-dioxide (compound 5) using Buchwald-Hartwig cross ...
Findlay, Neil   +2 more
core   +1 more source

Open questions on the photophysics of thermally activated delayed fluorescence

open access: yesCommunications Chemistry, 2021
The process of thermally activated delayed fluorescence (TADF) converts non-radiative triplet states into emissive singlet states. Herein we outline the fundamentals of TADF, some of the recent progress in understanding the key material properties ...
Julien Eng, Thomas J. Penfold
doaj   +1 more source

Thermally Activated Delayed Fluorescence Coinage Metal Cluster Scintillator

open access: yesACS Central Science, 2023
X-ray scintillators are widely used in medical imaging, industrial flaw detection, security inspection, and space exploration. However, traditional commercial scintillators are usually associated with a high use cost because of their substantial toxicity and easy deliquescence.
Qiu-Chen Peng   +6 more
openaire   +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

Routes for efficiency enhancement in fluorescent TADF exciplex host OLEDs gained from an electro‐optical device model [PDF]

open access: yes, 2019
Fluorescence-based organic light-emitting diodes (OLEDs) using thermally activated delayed fluorescence (TADF) have increasingly attracted attention in research and industry.
Kim, Jang‐Joo   +5 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

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