Singlet and triplet to doublet energy transfer: improving organic light-emitting diodes with radicals

F Li, AJ Gillett, Q Gu, J Ding, Z Chen, TJH Hele… - Nature …, 2022 - nature.com
Organic light-emitting diodes (OLEDs) must be engineered to circumvent the efficiency limit
imposed by the 3: 1 ratio of triplet to singlet exciton formation following electron-hole …

Efficient and bright organic radical light‐emitting diodes with low efficiency roll‐off

HH Cho, S Gorgon, HC Hung, JY Huang… - Advanced …, 2023 - Wiley Online Library
Organic radicals have been of interest due to their potential to replace nonradical‐based
organic emitters, especially for deep‐red/near‐infrared (NIR) electroluminescence (EL) …

[HTML][HTML] Efficient near-infrared organic light-emitting diodes with emission from spin doublet excitons

HH Cho, S Gorgon, G Londi, S Giannini, C Cho… - Nature …, 2024 - nature.com
The development of luminescent organic radicals has resulted in materials with excellent
optical properties for near-infrared emission. Applications of light generation in this range …

[HTML][HTML] Spin-selective electron transfer reactions of radical pairs: Beyond the Haberkorn master equation

TP Fay, LP Lindoy, DE Manolopoulos - The Journal of Chemical …, 2018 - pubs.aip.org
Radical pair recombination reactions are normally described using a quantum mechanical
master equation for the electronic and nuclear spin density operator. The electron spin state …

Improvement of the electroluminescence performance of exciplex‐based OLEDs by effective utilization of long‐range coupled electron–hole pairs

P Yuan, X Guo, X Qiao, D Yan… - Advanced Optical …, 2019 - Wiley Online Library
An effective method to utilize the radiation of long‐range coupled electron–hole pairs to
improve the electroluminescence performance of exciplex‐based organic light‐emitting …

Fast transfer of triplet to doublet excitons from organometallic host to organic radical semiconductors

Q Gu, S Gorgon, AS Romanov, F Li… - Advanced …, 2024 - Wiley Online Library
Spin triplet exciton formation sets limits on technologies using organic semiconductors that
are confined to singlet‐triplet photophysics. In contrast, excitations in the spin doublet …

Degradation analysis of organic light-emitting diodes through dispersive magneto-electroluminescence response

AK Mondal, X Pan, O Kwon… - ACS Applied Materials & …, 2023 - ACS Publications
Understanding the stability and degradation of organic light-emitting diodes (OLEDs) under
working conditions is a significant area of research for developing more effective OLEDs and …

Imidazole-based AIEgens for highly sensitive and selective detection of picric acid

Y Zhang, F Tang, X He, C Wang, L Kong, J Yang… - …, 2022 - pubs.rsc.org
Imidazole is an important heterocyclic motif and its derivatives are widely used in many
fields such as catalysis, medicine, and smart sensors. Here we report the synthesis of four …

Perdeuterated conjugated polymers for ultralow‐frequency magnetic resonance of OLEDs

S Milster, T Grünbaum, S Bange… - Angewandte Chemie …, 2020 - Wiley Online Library
The formation of excitons in OLEDs is spin dependent and can be controlled by electron‐
paramagnetic resonance, affecting device resistance and electroluminescence yield. We …

Low-temperature magnetoelectroluminescence of organic light-emitting diodes: Separating excitonic effects from carrier-pair singlet-triplet mixing

F Braun, T Scharff, S Bange, W Jiang, TA Darwish… - Physical Review B, 2024 - APS
Low-temperature magnetoelectroluminescence (MEL) of organic light-emitting diodes
(OLEDs) reveals a near-complete suppression of electroluminescence at strong magnetic …