Related Experiment Video
Updated: May 9, 2025

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Recent Advances in Concentration Quenching-Resistant Multiresonance Thermally Activated Delayed Fluorescence Emitters
Hua-Xiu Ni1, Li Yuan1, You-Xuan Zheng1
1State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China.
None:
The research on multiresonance thermally activated delayed fluorescence (MR-TADF) emitters has garnered increasing attention due to the exceptional photophysical properties of their corresponding organic light-emitting diodes (OLEDs), such as high efficiency and narrow emission features. However, they still face intractable issues like concentration-induced emission quenching, exciton annihilation, and spectral broadening. This review focuses on a sophisticated molecular design strategy named "sterically wrapping of MR fluorophores" to tackle the aforementioned problems. Bulky substituents isolate the MR emission core, thereby significantly reducing intermolecular interactions. Therefore, with these MR-TADF emitters, the OLEDs are capable of maintaining narrow emission bands while achieving high external quantum efficiencies across a wide concentration range from 1 to 20 wt% and even at higher concentrations. This article reviews the latest advancements in MR-TADF emitters with suppressed concentration quenching and spectral broadening, emphasizing their chemical structures, optoelectronic properties, and device performances. Finally, the potential challenges and future perspectives of MR-TADF materials are analyzed to better comprehend the potential of efficient narrowband OLEDs.
More Related Videos
Related Concept Videos
Photoluminescence: Applications
Variables Affecting Phosphorescence and Fluorescence
Super-resolution Fluorescence Microscopy
Fluorescence and Phosphorescence: Instrumentation
Confocal Fluorescence Microscopy
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...

