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Interplay of structure and photophysics of individualized rod-shaped graphene quantum dots with up to 132 sp² carbon atoms

Author

Listed:
  • Daniel Medina-Lopez

    (Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN)

  • Thomas Liu

    (Université Paris-Saclay, CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn)

  • Silvio Osella

    (University of Warsaw)

  • Hugo Levy-Falk

    (Université Paris-Saclay, CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn)

  • Nicolas Rolland

    (University of Mons)

  • Christine Elias

    (Université Paris-Saclay, CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn)

  • Gaspard Huber

    (Université Paris-Saclay, CEA, CNRS, NIMBE, LSDRM)

  • Pranav Ticku

    (Université Paris-Saclay, CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn)

  • Loïc Rondin

    (Université Paris-Saclay, CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn)

  • Bruno Jousselme

    (Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN)

  • David Beljonne

    (University of Mons)

  • Jean-Sébastien Lauret

    (Université Paris-Saclay, CNRS, ENS Paris-Saclay, CentraleSupélec, LuMIn)

  • Stephane Campidelli

    (Université Paris-Saclay, CEA, CNRS, NIMBE, LICSEN)

Abstract

Nanographene materials are promising building blocks for the growing field of low-dimensional materials for optics, electronics and biophotonics applications. In particular, bottom-up synthesized 0D graphene quantum dots show great potential as single quantum emitters. To fully exploit their exciting properties, the graphene quantum dots must be of high purity; the key parameter for efficient purification being the solubility of the starting materials. Here, we report the synthesis of a family of highly soluble and easily processable rod-shaped graphene quantum dots with fluorescence quantum yields up to 94%. This is uncommon for a red emission. The high solubility is directly related to the design of the structure, allowing for an accurate description of the photophysical properties of the graphene quantum dots both in solution and at the single molecule level. These photophysical properties were fully predicted by quantum-chemical calculations.

Suggested Citation

  • Daniel Medina-Lopez & Thomas Liu & Silvio Osella & Hugo Levy-Falk & Nicolas Rolland & Christine Elias & Gaspard Huber & Pranav Ticku & Loïc Rondin & Bruno Jousselme & David Beljonne & Jean-Sébastien L, 2023. "Interplay of structure and photophysics of individualized rod-shaped graphene quantum dots with up to 132 sp² carbon atoms," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40376-w
    DOI: 10.1038/s41467-023-40376-w
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    References listed on IDEAS

    as
    1. Liying Jiao & Li Zhang & Xinran Wang & Georgi Diankov & Hongjie Dai, 2009. "Narrow graphene nanoribbons from carbon nanotubes," Nature, Nature, vol. 458(7240), pages 877-880, April.
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    3. Yuan-Zhi Tan & Bo Yang & Khaled Parvez & Akimitsu Narita & Silvio Osella & David Beljonne & Xinliang Feng & Klaus Müllen, 2013. "Atomically precise edge chlorination of nanographenes and its application in graphene nanoribbons," Nature Communications, Nature, vol. 4(1), pages 1-7, December.
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