Robin Bernhardt, Lukas Rieland, Tianyi Wang, Marvin F. Schumacher, Arne Lützen, Manuela Schiek, Paul H. M. van Loosdrecht
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引用次数: 0
Abstract
Enantiopure ProSQ-C16 thin films exhibit an unusually large excitonic circular dichroism signal. Using steady-state and ultrafast transient absorption spectroscopy, Bernhardt et al. reveal that the optical response and its circular dichroism originate from a single type of predominantly J-like aggregated ProSQ-C16 molecules. A rapid transition to a dark intermediate state via intermolecular charge transfer and exciton-vibration coupling is suggested to be responsible for the suppression of the fluorescence, highlighting the importance of non-Frenkel exciton dynamics (e698).
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