Results 111 to 120 of about 7,202 (210)

High-Efficiency Sky Blue-To-Green Fluorescent Emitters Based on 3-Pyridinecarbonitrile Derivatives

open access: yesFrontiers in Chemistry, 2019
The pyridinecarbonitrile derivative is well known as an acceptor unit in fluorescent materials. However, its use in thermally activated delayed fluorescent (TADF) emitters is very limited compared with its benzenecarbonitrile counterparts. Very recently,
Yuki Masuda   +8 more
doaj   +1 more source

Challenges and Opportunities in Machine Learning for Light‐Emitting Polymers

open access: yesMacromolecular Rapid Communications, EarlyView.
The performance of light‐emitting polymers emerges from coupled effects of chemical diversity, morphology, and exciton dynamics across multiple length scales. This Perspective reviews recent design strategies and experimental challenges, and discusses how machine learning can unify descriptors, data, and modeling approaches to efficiently navigate ...
Tian Tian, Yinyin Bao
wiley   +1 more source

Intramolecular Noncovalent Interactions Facilitate Thermally Activated Delayed Fluorescence (TADF)

open access: yesThe Journal of Physical Chemistry Letters, 2019
In the conventional molecular design of thermally activated delayed fluorescence (TADF) organic emitters, simultaneously achieving a fast rate of reverse intersystem crossing (RISC) from the triplet to the singlet manifold and a fast rate of radiative decay is a challenging task.
Xian-Kai Chen   +6 more
openaire   +3 more sources

A temperature sensor with a wide spectral range based on a dual-emissive TADF dendrimer system

open access: yesNature Communications
Dual emission from thermally activated delayed fluorescence (TADF) emitters is often difficult to observe, especially in solution, limited by Kasha’s rule.
Changfeng Si   +5 more
doaj   +1 more source

High efficiency and low roll-off green OLEDs with simple structure by utilizing thermally activated delayed fluorescence material as the universal host

open access: yesNanophotonics, 2016
We achieved high-efficiency and low-roll-off green fluorescent and phosphorescent organic light-emitting diodes (OLEDs) simultaneously by adopting the thermally activated delayed fluorescence material of bis[4-(9,9-dimethyl-9,10-dihydroacridine)phenyl ...
Zhao Bo   +7 more
doaj   +1 more source

Multi‐channel charge transfer delayed fluorescence enabling high‐efficiency organic light‐emitting diodes

open access: yesFlexMat
Thermally activated delayed fluorescence (TADF) materials have garnered extensive attention, as they can attain 100% exciton utilization without the necessity of introducing precious metal atoms. Since the breakthrough of electroluminescent devices based
Guo‐Wei Chen   +6 more
doaj   +1 more source

Inverse engineering for fast transport and spin control of spin-orbit-coupled Bose-Einstein condensates in moving harmonic traps

open access: yes, 2018
We investigate fast transport and spin manipulation of tunable spin-orbit-coupled Bose-Einstein condensates in a moving harmonic trap. Motivated by the concept of "shortcuts to adiabaticity", we design inversely the time-dependent trap position and spin ...
Ban., Yue   +4 more
core   +1 more source

Organophosphide: Eine neue Klasse der Luminophorliganden für Kupfer(I)‐Carben‐basierte TADF‐Emitter und Photokatalysatoren

open access: yesAngewandte Chemie, Volume 138, Issue 13, 23 March 2026.
Der Einsatz von Dimesitylphosphid als höheres Homolog der etablierten Amidoliganden für Charge‐Transfer‐Kupfer(I)‐Komplexe führt zu einer Rotverschiebung der Emission um 3645 cm–1 in den rot‐orangen Spektralbereich im Festkörper sowie in den NIR‐Bereich in Lösung. Die thermisch‐aktivierte verzögerte Fluoreszenz weist hohe Dissymmetriefaktoren von glum =
Paul C. Ruer   +2 more
wiley   +1 more source

Thermally Activated Delayed Fluorescence in Organic Semiconductors and Its Application in Light-Emitting Diodes

open access: yesEast European Journal of Physics
The presence of the effect of thermally activated delayed fluorescence (TADF) in organic light-emitting materials (emitters), manifested in the "collecting" of triplet excitons in organic semiconductor complexes that do not contain noble metals, creates ...
Serhii Melnykov   +3 more
doaj   +1 more source

Estimating the equilibrium real exchange rate in Venezuela [PDF]

open access: yes, 2003
To determine whether the real exchange rate is misaligned with respect to its long-run equilibrium is an important issue for policy makers. This paper clarifies and calculates the concept of the equilibrium real exchange rate, using a structural vector ...
Bjørnland, Hilde Christiane
core  

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