Results 51 to 60 of about 1,915,191 (239)

Excited state modulation in Donor-Substituted Multi-resonant Thermally Activated Delayed Fluorescence Emitters [PDF]

, 2022
Examples of multi-resonant thermally activated delayed fluorescence (MR-TADF) emitters that emit at longer wavelengths remain rare. To reach that goal, we decorate different numbers and types of electron-donors about a central MR-TADF core, DiKTa ...
Yoann, Olivier, David, Beljonne, Ifor, Samuel, David, Hall, Junyi, Gong, Subeesh, Madayanad Suresh, Eli, Zysman-Colman, Kou, Yoshida, Thomas, Sayner, Sen, Wu, Wenbo, Li   +10 more
core   +2 more sources

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

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, Youichi Tsuchiya, E. Mattias Lindh, Shi Tang, Chihaya Adachi, Ludvig Edman   +5 more
doaj   +1 more source

Molecular Design Based on Donor-Weak Donor Scaffold for Blue Thermally-Activated Delayed Fluorescence Designed by Combinatorial DFT Calculations

Frontiers in Chemistry, 2020
Quantum chemical calculations are necessary to develop advanced emitter materials showing thermally-activated delayed fluorescence (TADF) for organic light-emitting diodes (OLEDs).
Youichi Tsuchiya, Youichi Tsuchiya, Keita Tsuji, Keita Tsuji, Ko Inada, Ko Inada, Fatima Bencheikh, Fatima Bencheikh, Yan Geng, H. Shaun Kwak, Thomas J. L. Mustard, Mathew D. Halls, Hajime Nakanotani, Hajime Nakanotani, Hajime Nakanotani, Chihaya Adachi, Chihaya Adachi, Chihaya Adachi, Chihaya Adachi   +18 more
doaj   +1 more source

Sonocrystallization Induced Thermally Activated Delayed Fluorescence via Distortion of Molecular Geometry [PDF]

, 2023
In this work we present three donor-acceptor thermally activated delayed fluorescence (TADF) molecules comprising a 2,3,5,6-tetrafluorobenzonitrile acceptor with various electron donor units: phenoxazine (Phx-BzN), phenothiazine (Pht-BzN), and carbazole (
Antonio, Maggiore, YangYang, Qu, Fabien, Miomandre, Gilles, Clavier, Fernando B., Dias, Regis, Guillot, Piotr, Pander, Pierre, Audebert   +7 more
core   +2 more sources

Red Thermally Activated Delayed Fluorescence in Dibenzopyridoquinoxaline-Based Nanoaggregates

Organic Materials, 2021
All-organic thermally activated delayed fluorescence (TADF) materials have emerged as potential candidates for optoelectronic devices and biomedical applications.
Subhadeep Das, Subhankar Kundu, Bahadur Sk, Madhurima Sarkar, Abhijit Patra   +4 more
doaj   +1 more source

Competition between ultralong organic phosphorescence and thermally activated delayed fluorescence in dichloro derivatives of 9-benzoylcarbazole [PDF]

, 2022
Optoelectronic materials based on metal-free organic molecules represent a promising alternative to traditional inorganic devices. Significant attention has been devoted to the development of the third generation of OLEDs which are based on the ...
Rachel, Crespo-Otero, Alston J. , Misquitta, Amir , Sidat, Ljiljana, Stojanovic, Federico J. , Hernández   +4 more
core   +2 more sources

Emergence of White Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence

Applied Sciences, 2018
Recently, thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs) have attracted both academic and industrial interest due to their extraordinary characteristics, such as high efficiency, low driving voltage, bright ...
Peng Xiao, Ting Dong, Jianing Xie, Dongxiang Luo, Jian Yuan, Baiquan Liu   +5 more
doaj   +1 more source

Comparative study of thermally activated delayed fluorescent properties of donor–acceptor and donor–acceptor–donor architectures based on phenoxazine and dibenzo[a,j]phenazine

Beilstein Journal of Organic Chemistry, 2022
A new thermally activated delayed fluorescence (TADF) compound based on a donor–acceptor (D–A) architecture (D = phenoxazine; A = dibenzo[a,j]phenazine) has been developed, and its photophysical properties were characterized.
Saika Izumi, Prasannamani Govindharaj, Anna Drewniak, Paola Zimmermann Crocomo, Satoshi Minakata, Leonardo Evaristo de Sousa, Piotr de Silva, Przemyslaw Data, Youhei Takeda   +8 more
doaj   +1 more source

Enhancing thermally activated delayed fluorescence by fine-tuning the dendron donor strength [PDF]

, 2021
Thermally activated delayed fluorescence (TADF) relies on a small energy gap between the emissive singlet and the non-emissive triplet state, obtained by reducing the wavefunction overlap between donor and acceptor moieties.
Alexandra M. Z. , Slawin, Yoann, Olivier, David, Beljonne, David, Hall, Cameron L. , Carpenter-Warren, Rishabh, Saxena, Eli, Zysman-Colman, Sergey, Bagnich, Michael Y., Wong, Eimantas, Duda, David B., Cordes, Anna, Köhler   +11 more
core   +2 more sources

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

Macedonian 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