Next generation quantum theory of atoms in molecules for the design of emitters exhibiting thermally activated delayed fluorescence with laser irradiation

2021 ◽  
Author(s):  
Zi Li ◽  
Yong Yang ◽  
Tianlv Xu ◽  
Herbert Früchtl ◽  
Tanja Mourik ◽  
...  
Keyword(s):  
Quantum Theory ◽  
Laser Irradiation ◽  
Delayed Fluorescence ◽  
Atoms In Molecules ◽  
Next Generation ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated

Green multi-resonance induced thermally activated delayed fluorescence emitters containing phenoxazine units with highly efficient electroluminescence

2021 ◽  
Author(s):  
Jia-Jun Hu ◽  
Xu-Feng Luo ◽  
Meng-Xi Mao ◽  
Hua-Xiu Ni ◽  
Xiao Liang ◽  
...  
Keyword(s):  
Delayed Fluorescence ◽  
Color Purity ◽  
Next Generation ◽  
Thermally Activated Delayed Fluorescence ◽  
Color Display ◽  
Thermally Activated ◽  
Highly Efficient ◽  
Full Color ◽  
High Color Purity

Highly efficient multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters with narrowband emissions based on B (boron)/ N (nitrogen) framework are crucial for next-generation full-color display with high color purity. This...

Exciton engineering based on star-shaped blue thermally activated delayed fluorescence emitters for efficient white organic light-emitting diodes

2021 ◽  
Author(s):  
Hui Xu ◽  
Zhe Li ◽  
Chunbo Duan ◽  
Ying Li ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Environmental Sustainability ◽  
Light Emitting Diodes ◽  
Low Cost ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Next Generation ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light

White organic light emitting diodes (OLED) are promising as the next-generation lighting sources, for which thermally activated delayed fluorescence (TADF) materials provides an alternative feature low cost and environmental sustainability,...

scholarly journals Organic thermally activated delayed fluorescence (TADF) compounds used in photocatalysis

2021 ◽  
Author(s):  
Megan Amy Bryden ◽  
Eli Zysman-Colman
Keyword(s):  
Organic Compounds ◽  
Light Emitting Diodes ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Next Generation ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light

Organic compounds that show Thermally Activated Delayed Fluorescence (TADF) have become wildly popular as next generation emitters in organic light-emitting diodes (OLEDs), but since 2016, have received significant and increasing attention as photocatalysts.

Solvent Dependence of Structural Dynamics and Spin-flip Processes in 3,4,5-tri(9H-carbazole-9-yl)benzonitrile (ortho-3CzBN)

2020 ◽  
Author(s):  
Masaki Saigo ◽  
Kiyoshi Miyata ◽  
Hajime Nakanotani ◽  
Chihaya Adachi ◽  
Ken Onda
Keyword(s):  
Dft Calculations ◽  
Excited States ◽  
Structural Changes ◽  
Photophysical Properties ◽  
Delayed Fluorescence ◽  
Time Resolved ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Solvent Dependence ◽  
Acetonitrile Solutions

We have investigated the solvent-dependence of structural changes along with intersystem crossing of a thermally activated delayed fluorescence (TADF) molecule, 3,4,5-tri(9H-carbazole-9-yl)benzonitrile (o-3CzBN), in toluene, tetrahydrofuran, and acetonitrile solutions using time-resolved infrared (TR-IR) spectroscopy and DFT calculations. We found that the geometries of the S1 and T1 states are very similar in all solvents though the photophysical properties mostly depend on the solvent. In addition, the time-dependent DFT calculations based on these geometries suggested that the thermally activated delayed fluorescence process of o-3CzBN is governed more by the higher-lying excited states than by the structural changes in the excited states.<br>

New hole transport styrene polymers bearing highly π-extended conjugated side-chain moieties for high-performance solution-processable thermally activated delayed fluorescence OLEDs

2021 ◽  
Vol 12 (11) ◽  
pp. 1692-1699
Author(s):  
Ji Hye Lee ◽  
Jinhyo Hwang ◽  
Chai Won Kim ◽  
Amit Kumar Harit ◽  
Han Young Woo ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Delayed Fluorescence ◽  
Hole Transport ◽  
Side Chain ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Turn On ◽  
Solution Processable

New polystyrene-based polymers with high π-extended hole transport pendants were synthesized to obtain a low turn-on voltage and high efficiency in solution-processed green TADF-OLEDs.

scholarly journals Molecular design of efficient yellow- to red-emissive alkynylgold(iii) complexes for the realization of thermally activated delayed fluorescence (TADF) and their applications in solution-processed organic light-emitting devices

2021 ◽  
Author(s):  
Cathay Chai Au-Yeung ◽  
Lok-Kwan Li ◽  
Man-Chung Tang ◽  
Shiu-Lun Lai ◽  
Wai-Lung Cheung ◽  
...  
Keyword(s):  
Molecular Design ◽  
Delayed Fluorescence ◽  
Solution Processed ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Thermally Activated ◽  
New Class ◽  
Organic Light ◽  
Tunable Emission

We report the design of a new class of fused heterocyclic alkynyl ligand-containing gold(iii) complexes, which shows tunable emission colors spanning yellow to red region and exhibits thermally activated delayed fluorescence (TADF) properties.

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