%0 Journal Article
%T Revealing two chemical strategies to tune bright one- and two-photon excited fluorescence of carbon nanodots
%+ Laboratoire Charles Coulomb (L2C)
%+ Department of Physics and Astronomy [Columbia] (Mizzou Physics)
%+ Matériaux divisés, interfaces, réactivité, électrochimie (MADIREL)
%+ Department of Chemical and Biological Engineering, Northwestern University
%+ Department of Micro, Nano, and Bioprocess Engineering, Wrocław University of Science and Technology
%+ Laboratoire Charles Coulomb (L2C)
%+ Institute of Advanced Materials, Wroclaw University of Science and Technology
%A Mucha, Sebastian, Grzegorz
%A Firlej, Lucyna
%A Formalik, Filip
%A Bantignies, Jean-Louis
%A Anglaret, Eric
%A Samoć, Marek
%A Matczyszyn, Katarzyna
%< avec comité de lecture
%@ 2050-7526
%J Journal of Materials Chemistry C
%I Royal Society of Chemistry
%8 2024-01-02
%D 2024
%R 10.1039/D3TC03211F
%Z Chemical Sciences/Material chemistry
%Z Chemical Sciences/Theoretical and/or physical chemistry
%Z Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics
%Z Engineering Sciences [physics]/Optics / PhotonicJournal articles
%X Carbon-based dots (CDs) are a novel class of luminescent carbon nanomaterials that have attracted much attention as promising alternatives for cadmium-based quantum dots and fluorescent organic dyes. Although different strategies have been proposed to produce CDs with intense and tuneable one-photon excited fluorescence (OPEF), the case of analogous two-photon excited fluorescence (TPEF) has not been fully explored yet. By varying the synthesis conditions, we produced three types of phloroglucinol-based carbon nanodots (PG CNDs). Their remarkable OPEF and TPEF properties can be tuned by (Ia) the conjugated aromatic domains and (Ib) the content of oxygenous moieties. In addition, the emission colour of the PG CNDs is strongly responsive to (II) the hydrogen-bonding network, enabling colour-switching while maintaining excellent fluorescence yields (both OPEF and TPEF). These three factors were evaluated for their suitability for the tuning of the emission colour. Our studies point out the advantages of the tuneable PG CNDs to be used in optoelectronics and biological application domains.
%G English
%L hal-04398741
%U https://hal.science/hal-04398741
%~ CNRS
%~ UNIV-AMU
%~ L2C
%~ INC-CNRS
%~ MADIREL
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021
%~ UM-EPE