Results 41 to 50 of about 5,621 (248)

Merging Boron and Carbonyl based MR-TADF Emitter Designs to Achieve High Performance Deep Blue OLEDs [PDF]

open access: yes, 2023
Multiresonant thermally activated delayed fluorescence (MR-TADF) compounds are attractive as emitters for organic light-emitting diodes (OLEDs) as they simultaneously can harvest both singlet and triplet excitons to produce light and show very narrowband
Ifor, Samuel   +5 more
core   +2 more sources

Conformational isomerization: A novel mechanism to realize the AIE‐TADF behaviors

open access: yesAggregate, 2023
Thermally activated delayed fluorescence (TADF) materials with aggregation‐induced emission (AIE) features can overcome aggregation‐caused quenching (ACQ) and emit intensely in aggregate states and thus have attracted enormous attention in the fields of ...
Hao Wu   +8 more
doaj   +1 more source

Harvesting triplet excitons for near-infrared electroluminescence via thermally activated delayed fluorescence channel

open access: yesiScience, 2021
Summary: Near-infrared (NIR) emission is useful for numerous practical applications, such as communication, biomedical sensors, night vision, etc., which encourages researchers to develop materials and devices for the realization of efficient NIR organic
You-Jun Yu   +4 more
doaj   +1 more source

Extracting Design Principles for Efficient Thermally Activated Delayed Fluorescence (TADF) from a Simple Four-State Model [PDF]

open access: yes, 2019
We introduce a simple quantum-mechanical model for thermally activated delayed fluorescence (TADF). The Hamiltonian is represented in the basis of four spin-mixed diabatic states representing pure charge transfer (CT) and local excitations (LE).
Troy, Van Voorhis   +3 more
core   +2 more sources

Mechano-Stimulus and Environment Dependent Circularly Polar-ized TADF in Chiral Copper(I) Complexes and their Application in OLEDs [PDF]

open access: yes, 2022
Molecular emitters that combine circularly polarized luminescence (CPL) and high radiative rate constants of the triplet exci-ton decay are highly attractive for electroluminescent devices (OLEDs) or next generation photonic applications, such as ...
André M. T., Muthig   +8 more
core   +2 more sources

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

TD-DFT and Experimental Methods for Unraveling the Energy Distribution of Charge-Transfer Triplet/Singlet States of a TADF Molecule in a Frozen Matrix [PDF]

open access: yes, 2020
Reverse intersystem crossing (RISC) rate of a thermally activated delayed fluorescence (TADF) molecule is sensitive to the energy alignment of singlet charge-transfer state (1CT), triplet charge-transfer state (3CT), and locally excited triplet state ...
Seung-Je, Woo, Jang-Joo, Kim
core   +2 more sources

Effect of void-carbon on blue-shifted luminescence in TADF molecules by theoretical simulations

open access: yesFrontiers in Chemistry, 2023
Thermally activated delayed fluorescence (TADF) molecules have a theoretical 100% photoluminescence quantum yield in comparison with traditional fluorescent materials, leading to broad application in organic light-emitting diode (OLED).
Boyuan Zhang   +4 more
doaj   +1 more source

Acceptor-Donor-Acceptor π-Stacking Boosts Intramolecular Through-Space Charge Transfer towards Efficient Red TADF and High-Performance OLEDs

open access: yesResearch, 2022
Organic push-pull systems featuring through-space charge transfer (TSCT) excited states have been disclosed to be capable of exhibiting thermally activated delayed fluorescence (TADF), but to realize high-efficiency long-wavelength emission still remains
Chenglin Jiang   +5 more
doaj   +1 more source

Engineering the singlet–triplet energy splitting in a TADF molecule [PDF]

open access: yesJournal of Materials Chemistry C, 2016
Environment plays a key role in the fine tuning of the energy levels of the charge transfer state with respect to the local donor or acceptor triplet state, which can be used to control the Δ E ST in TADF molecules.
Santos, Paloma L.   +6 more
openaire   +2 more sources

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