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Computational Studies of Molecular Materials for Unconventional Energy Conversion: The Challenge of Light Emission by Thermally Activated Delayed Fluorescence [PDF]

open access: yes, 2020
In this paper we describe the mechanism of light emission through thermally activated delayed fluorescence (TADF)—a process able to ideally achieve 100% quantum efficiencies upon fully harvesting the energy of triplet excitons, and thus minimizing the ...
Olivier, Yoann   +2 more
core   +3 more sources

Intermolecular Aggregation‐Induced Delayed Fluorescence Scintillators for Ultrahigh‐Resolution X‐Ray Imaging

open access: yesAdvanced Science, EarlyView.
An intermolecular AIDF strategy enables an organic X‐ray scintillator (OXST) that resists concentration quenching and efficiently utilizes singlet and triplet excitons. The AIDF emitter, embedded in a polysulfone matrix, yields bright, flexible, and transparent scintillation screens with ultralow detection limits and high spatial resolution, offering a
Jie Yuan   +12 more
wiley   +1 more source

Isotope Effect of Host Material on Device Stability of Thermally Activated Delayed Fluorescence Organic Light‐Emitting Diodes

open access: yesSmall Science, 2021
Organic light‐emitting diodes (OLEDs) exhibiting thermally activated delayed fluorescence (TADF) have attracted great interest because of their excellent exciton harvesting ability in electroluminescence (EL).
Xuelong Liu   +9 more
doaj   +1 more source

Differently substituted benzonitriles for non-doped OLEDs [PDF]

open access: yes, 2014
DG acknowledges to the ERDF PostDoc grant No. 1.1.1.2/VIAA/1/16/177 . This research was funded by the European Regional Development Fund according to the supported activity ‘Research Projects Implemented by World-class Researcher Groups’ under Measure No.
Gudeika, Dalius   +3 more
core   +1 more source

The recent progress and state-of-art applications for thermally activated delayed fluorescence (TADF)

open access: yesHighlights in Science, Engineering and Technology, 2022
Thermally activated delayed fluorescence (TADF) is regarded as the new generation of light-emitting materials in organic light-emitting diode after fluorescent materials and phosphorescent materials. Its high Internal Quantum Efficiency (IQE) and lower cost have attracted a lot of attention, which is a hot field of research of OLEDs for the future ...
openaire   +1 more source

Integrated Optoelectronic Model to Predict the External Quantum Efficiency of Single‐Layer TADF Organic Light‐Emitting Diodes

open access: yesAdvanced Electronic Materials, EarlyView.
An experimentally validated optoelectronic device model is presented to describe the efficiency and roll‐off behavior of single‐layer TADF OLEDs. By coupling charge transport, exciton dynamics, and optical outcoupling, the model reproduces the External Quantum Efficiency (EQE) across different emission layer thicknesses and temperatures, offering ...
Jawid Nikan   +4 more
wiley   +1 more source

White Organic Light-Emitting Diodes with Thermally Activated Delayed Fluorescence Emitters [PDF]

open access: yes, 2018
Recently, thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs) have attracted both academic and industrial interest due to their extraordinary characteristics, such as high efficiency, low driving voltage, bright ...
He, Zhiyuan   +4 more
core   +2 more sources

Comparison of the Performance of Fluorescent, Phosphorescent, and TADF Luminophores for Explosives Sensing

open access: yesAdvanced Sensor Research
This study investigates how the emission mechanism (fluorescence, phosphorescence, or thermally activated delayed fluorescence, TADF) of a luminescence‐quenching chemical sensor influences the sensitivity of explosives detection.
Michele Duarte Tonet   +2 more
doaj   +1 more source

Thermally activated delayed fluorescence (TADF) dyes as efficient organic photosensitizers for photocatalytic water reduction

open access: yesCatalysis Communications, 2019
Abstract An efficient water reduction system was developed using thermally activated delayed fluorescence (TADF) dyes as organic photosensitizers and a palladium complex as water reduction catalyst. 2,4,5,6-tetrakis(carbazol-9-yl)-1,3-dicyanobenzene (4CzIPN) that has the best fluorescence efficiency displayed the highest photoinduced productivity ...
Zhe-Jian Yu   +13 more
openaire   +1 more source

Modulation of delayed fluorescence pathways via rational molecular engineering

open access: yesNature Communications
One of the key challenges in developing efficient organic light-emitting diodes (OLEDs) is overcoming the loss channel of triplet excitons. A common approach to mitigate these losses to enhance the external quantum efficiency of OLEDs is employing ...
Sanchari Debnath   +7 more
doaj   +1 more source

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