Thermally Activated Delayed Fluorescence Properties of Trioxoazatriangulene Derivatives Modified with Electron Donating Groups
Source abstract
Abstract
Abstract With the aim of achieving high‐performance thermally activated delayed fluorescence, a series of trioxoazatriangulene derivatives are systematically developed by modifying the donor substituents. The emission colors are shifted from green to greenish‐yellow and to yellow with rather broad spectral widths of 70–95 nm by introducing carbazole, triphenylamine, or diphenylamine donor units, indicating that each emission originates from a charge‐transfer transition. On the other hand, the trioxoazatriangulene modified with three diphenylamines shows orange emission with a narrow emission spectrum (45 nm), suggesting that the transition mainly originates from a multiple resonance effect.
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Research context
OpenAlex topics: Organic Light-Emitting Diodes Research · Luminescence and Fluorescent Materials · Organic Electronics and Photovoltaics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center for Organic Photonics and Electronics Research (OPERA) Kyushu University 744, Motooka, Nishi‐ku Fukuoka 819‐0395 Japan
Japan Science and Technology Agency (JST) Exploratory Research for Advanced Technology (ERATO) Adachi Molecular Exciton Engineering Project Kyushu University Fukuoka 819‐0395 Japan
Department of Chemistry and Biochemistry Kyushu University 744, Motooka, Nishi‐ku Fukuoka 819‐0395 Japan
Department of Chemistry and Biochemistry The University of Arizona Tucson AZ 85721‐0088 USA
International Institute for Carbon Neutral Energy Research (WPI‐I2CNER) Kyushu University Fukuoka 819‐0395 Japan
Funding
Exploratory Research for Advanced Technology
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