Results 111 to 120 of about 4,660 (240)

Data_Sheet_1_Sensitizing TADF Absorption Using Variable Length Oligo(phenylene ethynylene) Antennae.pdf

, 2020
Beyond their applications in organic light-emitting diodes (OLEDs), thermally activated delayed fluorescence (TADF) materials can also make good photonic markers.
Daniel Hahn (299198), Marius Jakoby (8493495), Uli Lemmer (1410418), Fabian Hundemer (3192690), Stefan Bräse (2454700), Olga Franco (8493492), Rebekka V. Schneider (8493498), Michael A. R. Meier (7448339), Ian A. Howard (1274673), Bryce S. Richards (1990849)   +9 more
core   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 more
wiley   +1 more source

Employing organic donor-acceptor thermally activated delayed fluorescence (TADF) compounds as photocatalysts [PDF]

This thesis aims to expand the range of donor-acceptor (D-A) thermally activated delayed fluorescence (TADF) compounds trialled as photocatalysts (PCs), as well as increasing mechanistic understanding of photocatalytic processes.
Bryden, Megan Amy
core   +1 more source

o‐Carborane‐based multi‐resonance thermally activated delayed fluorescence emitter exhibits highly efficient and multifunctional electroluminescence

FlexMat, EarlyView.
By strategically incorporating boron/nitrogen multi‐resonance (B/N‐MR) core into the o‐carborane unit, perfect exciton utilization can be achieved as well as exhibiting stimuli‐responsive properties. The resulting DBN‐oCb‐based organic light‐emitting diode (OLED) demonstrated an impressive external quantum efficiency of 22.3%, the highest reported for ...
Jiasen Zhang, Denghui Liu, Mengke Li, Tong Wang, Yuanyuan Meng, Deli Li, Shi‐Jian Su, Wei Li, Ziyi Ge   +8 more
wiley   +1 more source

Pyrazine-Based Blue Thermally Activated Delayed Fluorescence Materials: Combine Small Singlet–Triplet Splitting With Large Fluorescence Rate

Frontiers in Chemistry, 2019
Metal-free thermally activated delayed fluorescence (TADF) emitters have emerged as promising candidate materials for highly efficient and low-cost organic light-emitting diodes (OLEDs).
Junyuan Liu, Keren Zhou, Dan Wang, Chao Deng, Ke Duan, Qi Ai, Qisheng Zhang   +6 more
doaj   +1 more source

Carbonyl lock enables multi‐resonant organoboron framework with substantially enhanced spin‐flip and reduced emission bandwidth

FlexMat, EarlyView.
Integrating carbonyl lock onto multi‐resonant organoboron emitters is found to go beyond conventional bridge unit. It can not only suppress the molecular relaxation as conventional bridge, but also substantially affect electronic engineering via carbonyl integration, activating multiple up‐conversion channels, thus leading to an accelerated spin‐flip ...
Tingfeng Chen, Xin Xiong, Rajat Walia, Xiaochun Fan, Wei Liu, Xiankai Chen, Jia Yu, Kai Wang   +7 more
wiley   +1 more source

Studies on Photophysical Properties of Chiral TADF [PDF]

, 2023
학위논문(석사) -- 서울대학교대학원 : 공과대학 재료공학부, 2023. 2. 권민상.A light emitting phenomenon of singlet state by transitioning to a ground state is called fluorescence. Since fluorescence can fundamentally only harvest energy from the singlet states, which make up 25% of
최혜성
core  

Vibronic Coupling Effect on the Vibrationally-Resolved Electronic Spectra and Intersystem Crossing Rates of a TADF Emitter: 7-PhQAD

, 2022
Assessing and improving the performance of organic light-emitting diode (OLED) materials require quantitative prediction of rate coefficients for the intersystem cross ing (ISC) and reverse ISC (RISC) processes, which are determined not only by the ...
Zheng, Pei, Bin, Zhang, Wanzhen, Liang, Sirong, Lin, Huili, Ma   +4 more
core   +1 more source

Deep red to near‐infrared thermally activated delayed fluorescence conjugated polymers toward highly efficient solution‐processible deep red and near‐infrared organic light‐emitting diodes

FlexMat, EarlyView.
A series of deep red (DR) and near‐infrared (NIR) thermally activated delayed fluorescence conjugated polymers are prepared, their solution‐processible organic light‐emitting diodes exhibit DR emission with maximum external quantum efficiency (EQEmax) of 6.4%, high luminance of 4254 cd m−2 and emission peak at 678 nm, and a NIR device with EQEmax of 2 ...
Tao Wang, Hongyang Zhang, Liping Jin, Peng Tao, Yanxiang Cheng, Wai‐Yeung Wong   +5 more
wiley   +1 more source

High-Efficiency Sky Blue-To-Green Fluorescent Emitters Based on 3-Pyridinecarbonitrile Derivatives

Frontiers in Chemistry, 2019
The pyridinecarbonitrile derivative is well known as an acceptor unit in fluorescent materials. However, its use in thermally activated delayed fluorescent (TADF) emitters is very limited compared with its benzenecarbonitrile counterparts. Very recently,
Yuki Masuda, Hisahiro Sasabe, Hisahiro Sasabe, Hisahiro Sasabe, Hiroki Arai, Natsuki Onuma, Junji Kido, Junji Kido, Junji Kido   +8 more
doaj   +1 more source