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Difluoroboron-Enabled Thermally Activated Delayed Fluorescence

ACS Applied Materials & Interfaces, 2019
A new series of tetracoordinated boron-enabled thermally activated delayed fluorescence (TADF) materials with a donor-acceptor BF2-type framework were designed and conveniently synthesized. Difluoroboron plays a critical role and acts as a key to coordinate with the latent acceptor of the 2-(4-phenylpyridin-2-yl)phenol (PPyPOH) moiety to realize TADF ...
Guijie Li   +4 more
openaire   +2 more sources

Thermally Activated Delayed Fluorescent Polymers

Journal of Polymer Science Part A: Polymer Chemistry, 2017
ABSTRACTThe development of organic light emitting diodes (OLEDs) based on fluorescent materials has made a great progress in improving light emitting efficiency and full range colors. But it still encounters the low singlet excitons generation ratio of 25% in device.
Yujun Xie, Zhen Li
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Transformation from Nonthermally Activated Delayed Fluorescence Molecules to Thermally Activated Delayed Fluorescence Molecules

Advanced Optical Materials, 2020
AbstractA novel molecular design approach transforming nonthermally activated delayed fluorescence (TADF) molecules to TADF molecules is developed for high external quantum efficiencies in TADF devices by utilizing an opened double emission process through selective twisting of the donor structure. Two non‐TADF type donor–acceptor molecules are coupled
Ha Lim Lee   +2 more
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Recent Developments in the Thermally Activated Delayed Fluorescence of Fullerenes.

ECS Meeting Abstracts, 2008
Abstract not Available.
Carlos Baleizão   +1 more
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Thermally Activated Delayed Fluorescence via Triplet Fusion

The Journal of Physical Chemistry Letters, 2019
Manipulating triplet states is technically intriguing for organic semiconductors and photochemical conversion. Sensitized photon upconversion that converts low-energy photons into higher-energy ones via triplet fusion holds great potential in augmentation of photovoltaic devices and photocatalysis. Conventional requirement of exothermic triplet-triplet
Li Li   +6 more
openaire   +2 more sources

Management of thermally activated delayed fluorescence using a secondary electron accepting unit in thermally activated delayed fluorescent emitters

Journal of Materials Chemistry C, 2019
A molecular design approach adopting secondary electron accepting units in addition to a main electron acceptor was investigated as a strategy to manage the thermally activated delayed fluorescent (TADF) performance of the emitters.
Ha Lim Lee   +3 more
openaire   +1 more source

A study of thermally activated delayed fluorescence in C60

Chemical Physics Letters, 1997
The existence of thermally activated delayed fluorescence in C is demonstrated by the study of the temperature 60 . dependence 291-353 K of the fluorescence intensity of C degassed solutions. The determined singlet-triplet energy gap, 60 35" 2k J rmol, agrees with the value calculated from previously reported fluorescence and low temperature phospho- .
Filipa A. Salazar   +2 more
openaire   +1 more source

Thermally Activated Delayed Fluorescence from Pentacarbazorylbenzonitrile

Chemistry Letters, 2016
A benzonitrile derivative substituted by five carbazoles (5CzBN), which emits thermally activated delayed fluorescence (TADF), was synthesized and evaluated. The organic light-emitting diode (OLED) containing 5CzBN demonstrated light-blue electroluminescence and a high external quantum efficiency of 14.8%.
Shuho Tanimoto   +3 more
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Nido‐Carboranes: Donors for Thermally Activated Delayed Fluorescence

Angewandte Chemie, 2018
AbstractAn approach to the design of nido‐carborane‐based luminescent compounds that can exhibit thermally activated delayed fluorescence (TADF) is proposed. 7,8‐Dicarba‐nido‐undecaboranes (nido‐carboranes) having various 8‐R groups (R=H, Me, i‐Pr, Ph) are appended to the meta or para position of the phenyl ring of the dimesitylphenylborane (PhBMes2 ...
Nguyen Van Nghia   +6 more
openaire   +2 more sources

Study of Phenoxaborin Derivatives for Thermally Activated Delayed Fluorescence Emitters

Journal of Nanoscience and Nanotechnology, 2018
Novel thermally activated delayed fluorescence (TADF) materials including 10H-phenoxaborin (PXB) as an electron acceptor and carbazole derivatives [carbazole (Cz), 1-methyl-carbazole (1-m-Cz), and 3,6-bis(3,6-diphenylcarbazolyl)carbazole (BDPCC)] as electron donors (Cz-PXB, 1-m-Cz-PXB, and BDPCC-PXB) were designed and investigated theoretically for ...
Geon Hyeong, Lee, Young Sik, Kim
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