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Showing 1–3 of 3 results
Advanced filters: Author: Benjamin Doppagne Clear advanced filters

  • The internal Stark effect, a shift of the spectral lines of a chromophore induced by electrostatic fields in its close environment, plays an important role in nature. Here the authors observe a Stark shift in the fluorescence spectrum of a phthalocyanine molecule upon charge modifications within the molecule itself, achieved by sequential removal of the central protons with a STM tip.

    • Kirill Vasilev
    • Benjamin Doppagne
    • Guillaume Schull
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • Energy funnelling within multichromophoric assemblies is key to the conversion of solar energy by plants. Now, energy transport between phthalocyanine-based chromophores has been monitored at the submolecular level using scanning tunnelling microscopy, focusing on the role of ancillary, passive and blocking chromophores in promoting and directing energy transfer between distant donor and acceptor units.

    • Shuiyan Cao
    • Anna Rosławska
    • Guillaume Schull
    Research
    Nature Chemistry
    Volume: 13, P: 766-770

  • Tautomerization, the interconversion between two constitutional isomers of a molecule, plays a major role in chemistry. The combination of hyper-resolved fluorescence microscopy with time-correlated measurements and spectral selection enables the identification and in-depth characterization of a tautomerization reaction within a single molecular switch.

    • Benjamin Doppagne
    • Tomáš Neuman
    • Guillaume Schull
    Research
    Nature Nanotechnology
    Volume: 15, P: 207-211