Issue 7, 2024

Recent advances in fluorescence and afterglow of CDs in matrices

Abstract

Carbon dots (CDs) are novel nanomaterials with dimensions less than 10 nm that have attracted much attention due to their outstanding optical properties. However, the development of solid-state fluorescence and afterglow methods has been relatively slow, although the properties of these materials under liquid conditions have been extensively studied. In recent years, embedding CDs in a matrix has been shown to prevent aggregation quenching and inhibit nonradiative transitions, thus realizing solid-state fluorescence and afterglow, which has greatly broadened the research and application areas of CDs. In terms of hydrogen bonding, ionic bonding, covalent bonding and spatial confinement, the interactions between CDs and matrices can effectively realize and improve the solid-state fluorescence and afterglow effects of CDs. Recent applications of CDs in matrices in optoelectronics, information security, sensing, biotherapeutics and imaging are also summarized. Finally, we summarize the challenges and developments of CDs in matrices.

Graphical abstract: Recent advances in fluorescence and afterglow of CDs in matrices

Article information

Article type
Review Article
Submitted
02 3 2024
Accepted
11 4 2024
First published
12 4 2024

Nanoscale Horiz., 2024,9, 1072-1098

Recent advances in fluorescence and afterglow of CDs in matrices

Q. Fu, K. Lu, S. Sun and Z. Dong, Nanoscale Horiz., 2024, 9, 1072 DOI: 10.1039/D4NH00093E

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