Results 81 to 90 of about 17,454 (292)
Highly efficient, dual state emission from an organic semiconductor
, 2013 We report highly efficient, simultaneous fluorescence and phosphorescence (74% yield) at room temperature from a single molecule ensemble of (BzP)PB dispersed into a polymer host. The slow phosphorescence (208 ms lifetime) is very efficient (50%) at room
Baldo, Marc A. +5 more
core +1 more source
Nonadiabatic coupling reduces the activation energy in thermally activated delayed fluorescence [PDF]
Physical 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
The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters
Advanced Functional Materials, EarlyView.A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul +4 more
wiley +1 more source
Nature 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
Nature 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
iScience, 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
E-Type Delayed Fluorescence of a Phosphine-Supported Cu_2(μ-NAr_2)_2 Diamond Core: Harvesting Singlet and Triplet Excitons in OLEDs [PDF]
, 2010 A highly emissive bis(phosphine)diarylamido dinuclear copper(I) complex (quantum yield = 57%) was shown to exhibit E-type delayed fluorescence by variable temperature emission spectroscopy and photoluminescence decay measurement of doped vapor-deposited ...
Deaton, Joseph C. +9 more
core +1 more source
Room temperature magneto-optic effect in silicon light-emitting diodes [PDF]
, 2017 In weakly spin-orbit coupled materials, the spin-selective nature of recombination can give rise to large magnetic-field effects, for example on electro-luminescence from molecular semiconductors.
Barast, L. +6 more
core +5 more sources
Advanced Functional Materials, EarlyView.A transparent, laser‐microscribed glass platform enables cancer diagnosis within 1 h—much faster than histology, which takes days, and free from the chemical or contrast risks of MRI or CT scans. The antibody‐functionalized rough glass surface captures viable cancer cells directly from suspension, allowing instant optical readout and offering a rapid ...
Anish Pal +5 more
wiley +1 more source
Nature 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