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Internal Stark effect of single-molecule fluorescence

Author

Listed:
  • Kirill Vasilev

    (CNRS, IPCMS)

  • Benjamin Doppagne

    (CNRS, IPCMS)

  • Tomáš Neuman

    (CNRS, IPCMS)

  • Anna Rosławska

    (CNRS, IPCMS)

  • Hervé Bulou

    (CNRS, IPCMS)

  • Alex Boeglin

    (CNRS, IPCMS)

  • Fabrice Scheurer

    (CNRS, IPCMS)

  • Guillaume Schull

    (CNRS, IPCMS)

Abstract

The optical properties of chromophores can be efficiently tuned by electrostatic fields generated in their close environment, a phenomenon that plays a central role for the optimization of complex functions within living organisms where it is known as internal Stark effect (ISE). Here, we realised an ISE experiment at the lowest possible scale, by monitoring the Stark shift generated by charges confined within a single chromophore on its emission energy. To this end, a scanning tunneling microscope (STM) functioning at cryogenic temperatures is used to sequentially remove the two central protons of a free-base phthalocyanine chromophore deposited on a NaCl-covered Ag(111) surface. STM-induced fluorescence measurements reveal spectral shifts that are associated to the electrostatic field generated by the internal charges remaining in the chromophores upon deprotonation.

Suggested Citation

  • Kirill Vasilev & Benjamin Doppagne & Tomáš Neuman & Anna Rosławska & Hervé Bulou & Alex Boeglin & Fabrice Scheurer & Guillaume Schull, 2022. "Internal Stark effect of single-molecule fluorescence," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28241-8
    DOI: 10.1038/s41467-022-28241-8
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    References listed on IDEAS

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    1. Yao Zhang & Qiu-Shi Meng & Li Zhang & Yang Luo & Yun-Jie Yu & Ben Yang & Yang Zhang & Ruben Esteban & Javier Aizpurua & Yi Luo & Jin-Long Yang & Zhen-Chao Dong & J G Hou, 2017. "Sub-nanometre control of the coherent interaction between a single molecule and a plasmonic nanocavity," Nature Communications, Nature, vol. 8(1), pages 1-7, August.
    2. Laerte L. Patera & Fabian Queck & Philipp Scheuerer & Jascha Repp, 2019. "Mapping orbital changes upon electron transfer with tunnelling microscopy on insulators," Nature, Nature, vol. 566(7743), pages 245-248, February.
    3. Yang Zhang & Yang Luo & Yao Zhang & Yun-Jie Yu & Yan-Min Kuang & Li Zhang & Qiu-Shi Meng & Yi Luo & Jin-Long Yang & Zhen-Chao Dong & J. G. Hou, 2016. "Visualizing coherent intermolecular dipole–dipole coupling in real space," Nature, Nature, vol. 531(7596), pages 623-627, March.
    4. Hiroshi Imada & Kuniyuki Miwa & Miyabi Imai-Imada & Shota Kawahara & Kensuke Kimura & Yousoo Kim, 2016. "Real-space investigation of energy transfer in heterogeneous molecular dimers," Nature, Nature, vol. 538(7625), pages 364-367, October.
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    Cited by:

    1. Katharina Kaiser & Leonard-Alexander Lieske & Jascha Repp & Leo Gross, 2023. "Charge-state lifetimes of single molecules on few monolayers of NaCl," Nature Communications, Nature, vol. 14(1), pages 1-10, December.

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