Spontaneous formation of carbon dots helps to distinguish molecular fluorophores species

0570467 - ÚFM 2024 RIV NL eng J - Journal Article
Gómez, I. J. - Sulleiro, M.V. - Pizúrová, Naděžda - Bednařík, A. - Lepcio, P. - Holec, D. - Preisler, J. - Zajíčková, L.
Spontaneous formation of carbon dots helps to distinguish molecular fluorophores species.
Applied Surface Science. Roč. 610, FEB (2023), č. článku 155536. ISSN 0169-4332. E-ISSN 1873-5584
Research Infrastructure: CzechNanoLab - 90110
Institutional support: RVO:68081723
Keywords : Carbon fluorescent nanoparticles * Carbon dots * Molecular species * Photoluminescence * dft
OECD category: Nano-materials (production and properties)
Impact factor: 6.7, year: 2022
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0169433222030641?via%3Dihub

Carbon dots (CDs) display photophysical features that appear similar, if not identical, despite the variety of synthesis protocols used to obtain them. The unique design of CDs toward the desired properties requires an exhaustive understanding of the structure itself. This work offers a fundamental insight into the structure and formation of the carbon dots that allows distinguishing the existence of molecular fluorophore species. Remarkably, density functional theory calculations of the elucidated structures support the spontaneous for-mation of a compact network of molecular species. In addition, as a proof-of-principle, our work comprehen-sively studies the photoluminescence properties (i.e., concentration, pH and solvent dependencies), which pave the way for developing CD-based logic gate fluorescent sensors.
Permanent Link: https://hdl.handle.net/11104/0341866