DOI: 10.1039/d6cp02166b ISSN: 1463-9076

Aggregation-activated delayed and two-photon fluorescence in a charge-modulated pyridine–acridan luminophore

Rasa Keruckiene, Kaspars Leduskrasts, Ho-Chia Tsai, Mariia Stanitska, Daiana Ospanova, Dmytro Volyniuk, Edgars Suna, Shi-Wei Chu, J. V. Grazulevicius

Neutral-to-cationic transformation in twisted π-extended PyAcr shows that charge, coupling, and aggregation govern excited-state dynamics. Neutral PyAcr displays aggregation-induced delayed fluorescence and potential as a two-photon bioimaging probe.

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