Our paper on common mechanism of dual emission in linearly-linked donor–acceptor-type TADF molecules has been published in Physical Chemistry Chemical Physics.

We are pleased to announce that a research paper led by our former member Mr. Ryu has been published in Physical Chemistry Chemical Physics.  The study elucidates the common photophysical mechanism of linearly-linked TADF molecules that exhibit dual emission.

Despite their simple donor–acceptor (D–A) architecture, these molecules show complex emission behavior. Using femtosecond transient absorption spectroscopy and picosecond time-resolved photoluminescence measurements, the team analyzed three linear D–A type molecules: Phenothiazine–triphenyltriazine, 9,9-Dimethyl-9,10-dihydroacridine–triphenyltriazine and Phenoxazine–triphenyltriazine. The results revealed that two conformers coexist and contribute to distinct emission pathways, providing a unified explanation for the observed dual emission.

“Common mechanism of dual emission in linearly-linked donor–acceptor-type thermally activated delayed fluorescence molecules”
Tomohiro Ryu, Arvydas Ruseckas, Masaki Saigo, Kiyoshi Miyata, Youichi Tsuchiya, Hajime Nakanotani, Chihaya Adachi, Ifor D. W. Samuel and Ken Onda*
Phys. Chem. Chem. Phys., 27, 13735-13744, (2025)