Spirobicyclic host material with pseudo-intramolecular charge transfer: Improving color purity of high-performance pure-blue and white thermally activated delayed fluorescence diodes

2019 ◽  
Vol 374 ◽  
pp. 471-478 ◽  
Author(s):  
Ruiming Du ◽  
Chunbo Duan ◽  
Ying Li ◽  
Jing Zhang ◽  
Chunmiao Han ◽  
...  
Keyword(s):  
Charge Transfer ◽  
High Performance ◽  
Intramolecular Charge Transfer ◽  
Delayed Fluorescence ◽  
Host Material ◽  
Color Purity ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated

A red thermally activated delayed fluorescence emitter employing dipyridophenazine with a gradient multi-inductive effect to improve radiation efficiency

2019 ◽  
Vol 7 (25) ◽  
pp. 7525-7530 ◽  
Author(s):  
Huiqin Wang ◽  
Bingjie Zhao ◽  
Peng Ma ◽  
Zhe Li ◽  
Xinyu Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Inductive Effect ◽  
Intramolecular Charge Transfer ◽  
Radiative Transition ◽  
Delayed Fluorescence ◽  
Radiation Efficiency ◽  
Quantum Yields ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Electro Luminescence

Red TADF emitter oTPA-DPPZ employs dipyridophenazine with gradient multi-inductive effect as acceptor, which enhances intramolecular charge transfer and radiative transition, resulting photo- and electro-luminescence quantum yields of 75% and 18.5%.

Modulation of OLED Efficiency via a Combination of Aromatic Electrophilic Directing and Intramolecular Charge Transfer

2021 ◽  
Author(s):  
Xiancheng Nie ◽  
Tao Wang ◽  
Wenhuan Huang ◽  
Hao Su ◽  
Biao Chen ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Organic Compounds ◽  
Intramolecular Charge Transfer ◽  
Light Emitting Diode ◽  
Delayed Fluorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Thermally Activated ◽  
Organic Light

Thermally activated delayed fluorescence (TADF) materials utilizing purely organic compounds have become a promising and more eco-friendly alternative to phosphorescent organometallic emitters in organic light-emitting diode (OLED) devices. However, the...

scholarly journals Axial and helical thermally activated delayed fluorescence bicarbazole emitters: Opposite modulation of circularly polarized luminescence through intramolecular charge-transfer dynamics

2021 ◽  
Author(s):  
Patthira Sumsalee ◽  
Laura Abella ◽  
Thierry Roisnel ◽  
Sabrina Lebrequier ◽  
Gregory Pieters ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Delayed Fluorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Circularly Polarized ◽  
Thermally Activated ◽  
High Interest ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Charge Transfer Dynamics

The rationalization of the molecular parameters that influences the intensity and sign of circularly polarized luminescence (CPL) for chiral emitters is a challenging task and remains of high interest for...

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