scholarly journals Realization of deep-blue TADF in sterically controlled naphthyridines for vacuum- and solution-processed OLEDs

2020 ◽  
Vol 8 (25) ◽  
pp. 8560-8566
Author(s):  
Gediminas Kreiza ◽  
Dovydas Banevičius ◽  
Justina Jovaišaitė ◽  
Saulius Juršėnas ◽  
Tomas Javorskis ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Narrow Band ◽  
Solution Processed ◽  
Band Emission ◽  
Deep Blue

Efficient deep-blue naphthyridine-based TADF emitters featuring narrow-band-emission with low roll-off were designed by using the H-bonding and sterically controlled charge-transfer interactions.

Novel Carbazole-based Multifunctional Materials with Hybridized Local and Charge-Transfer Excited State Acting as Deep Blue Emitters and Phosphorescent Hosts for Highly Efficient Organic Light-Emitting Diodes

2021 ◽  
Author(s):  
Haitao Zhou ◽  
Mengna Yin ◽  
Zhenhong Zhao ◽  
Yanqin Miao ◽  
Xin Jin ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Multifunctional Materials ◽  
Light Emitting ◽  
Highly Efficient ◽  
Deep Blue ◽  
Organic Light ◽  
Blue Emitters

In this work, two carbazole- and benzo[d]oxazole-based novel multifunctional materials with hybridized local and charge-transfer (HLCT) characteristic, namely OCI and OCT, which could act as deep-blue fluorophors and phosphorescent hosts,...

scholarly journals Solution-Processed OLEDs Based on Thermally Activated Delayed Fluorescence Copper(I) Complexes with Intraligand Charge-Transfer Excited State

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 1125
Author(s):  
Teng Teng ◽  
Jinfan Xiong ◽  
Gang Cheng ◽  
Changjiang Zhou ◽  
Xialei Lv ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Density Functional ◽  
Delayed Fluorescence ◽  
Quantum Yields ◽  
Functional Theory ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Wide Range

A new series of tetrahedral heteroleptic copper(I) complexes exhibiting efficient thermally-activated delayed fluorescence (TADF) in green to orange electromagnetic spectral regions has been developed by using D-A type N^N ligand and P^P ligands. Their structures, electrochemical, photophysical, and electroluminescence properties have been characterized. The complexes exhibit high photoluminescence quantum yields (PLQYs) of up to 0.71 at room temperature in doped film and the lifetimes are in a wide range of 4.3–24.1 μs. Density functional theory (DFT) calculations on the complexes reveal the lowest-lying intraligand charge-transfer excited states that are localized on the N^N ligands. Solution-processed organic light emitting diodes (OLEDs) based on one of the new emitters show a maximum external quantum efficiency (EQE) of 7.96%.

Efficient and Stable Deep-blue Narrow-Spectrum Electroluminescence Based on Hybridized Local and Charge-Transfer (HLCT) State

2021 ◽  
pp. 109482
Author(s):  
Shengbing Xiao ◽  
Shi-Tong Zhang ◽  
Ying Gao ◽  
Xinqi Yang ◽  
Haichao Liu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Narrow Spectrum ◽  
Deep Blue

Bis(4-diphenylaminophenyl)carbazole end-capped fluorene as solution-processed deep-blue light-emitting and hole-transporting materials for electroluminescent devices

2012 ◽  
Vol 53 (28) ◽  
pp. 3615-3618 ◽  
Author(s):  
Daungratchaneekron Meunmart ◽  
Narid Prachumrak ◽  
Tinnagon Keawin ◽  
Siriporn Jungsuttiwong ◽  
Taweesak Sudyoadsuk ◽  
...  
Keyword(s):  
Blue Light ◽  
Solution Processed ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Deep Blue ◽  
Hole Transporting ◽  
Hole Transporting Materials

scholarly journals Monothiatruxene‐Based, Solution‐Processed Green, Sky‐Blue, and Deep‐Blue Organic Light‐Emitting Diodes with Efficiencies Beyond 5% Limit

2018 ◽  
Vol 29 (6) ◽  
pp. 1807572 ◽  
Author(s):  
Michal R. Maciejczyk ◽  
Shuyu Zhang ◽  
Gordon J. Hedley ◽  
Neil Robertson ◽  
Ifor D. W. Samuel ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Deep Blue ◽  
Organic Light
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