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Long-living optical gain induced by solvent viscosity in a push-pull molecule
M M Mróz1, S Benedini, A Forni
1IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20132 Milano, Italy. tersilla.virgili@polimi.it.
Abstract:
The combination of continuum and ultrafast pump-probe spectroscopy with DFT and TDDFT calculations, in viscous and non-viscous environments, is effective in unraveling important features of the twisted intramolecular charge transfer mechanism in a new push-pull molecule that possesses aggregation induced emission properties. Long-living optical gain is found when this mechanism is inhibited, highlighting the importance of the environment rigidity in the design of materials for photonic applications.
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