Results 51 to 60 of about 3,547 (153)

Nonadiabatic coupling reduces the activation energy in thermally activated delayed fluorescence [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2017
The activation energy of thermally activated delayed fluorescence can be reduced by nonadiabatic coupling.
J. Gibson, T. J. Penfold
openaire   +3 more sources

Nanosecond-time-scale delayed fluorescence molecule for deep-blue OLEDs with small efficiency rolloff

open access: yesNature Communications, 2020
Deep-blue emitting organic materials with low exciton lifetime are required to realize efficient organic light-emitting diodes (OLEDs) at high brightness.
Jong Uk Kim   +6 more
doaj   +1 more source

Constructing high-efficiency orange-red thermally activated delayed fluorescence emitters by three-dimension molecular engineering

open access: yesNature Communications, 2022
The design of high-efficiency solution-processable orange-red thermally activated delayed fluorescence (TADF) emitters remains to be a challenge. Here, the authors synthesize a series of emitters consisting of a trinaphtho[3,3,3]propellane core with ...
Lei Hua   +6 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

Thermally activated delayed fluorescence with 7% external quantum efficiency from a light-emitting electrochemical cell

open access: yesNature Communications, 2019
Thermally activated delayed fluorescence (TADF) emitters deliver impressive performance in sophisticated multilayer devices. Here, the authors report efficient TADF emission from light-emitting electrochemical cells that feature a solution-processed ...
Petter Lundberg   +5 more
doaj   +1 more source

Comprehensive understanding of multiple resonance thermally activated delayed fluorescence through quantum chemistry calculations

open access: yesCommunications Chemistry, 2022
Molecules that exhibit multiple resonance thermally activated delayed fluorescence (MR-TADF) are highly efficient electroluminescent materials, but their emission mechanism is still not fully understood.
Katsuyuki Shizu, Hironori Kaji
doaj   +1 more source

thermally activated delayed fluorescence

open access: yes, 2014
Citation: 'thermally activated delayed fluorescence' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.T06305 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual ...
openaire   +1 more source

Revealing the spin–vibronic coupling mechanism of thermally activated delayed fluorescence

open access: yesNature Communications, 2016
Knowing the photophysics of thermally-activated delayed fluorescence (TADF) is crucial when designing organic light emitting diodes. Here the authors show that spin orbit coupling in TADF materials is described by a second order vibronic coupling ...
Marc K. Etherington   +4 more
doaj   +1 more source

Strategic-tuning of radiative excitons for efficient and stable fluorescent white organic light-emitting diodes

open access: yesNature Communications, 2019
Demonstrating white organic light-emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) emitters with high performance and operational stability remains a challenge. Here, the authors show efficient and stable white OLEDs based
Zhongbin Wu   +10 more
doaj   +1 more source

A computational study on a series of phenanthrene and phenanthroline based potential organic photovoltaics

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2017
A series of phenanthrene and phenanthroline derivatives were considered computationally by the application of Density Functional Theory at the B3LYP/6-31++G(d,p) level to investigate their potential usage as organic solar cell components, thermally ...
Selçuk Gümüş, Ayşegül Gümüş
doaj   +1 more source

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