Issue 33, 2022

Synthesis, optical properties and applications of red/near-infrared carbon dots

Abstract

Compared to inorganic quantum dots, fluorescent carbon nanomaterials (C-dots) have gained significant attention because of their unique optoelectrical properties and low toxicity. Although many review articles summarized the last research achievements, only a few of them are focusing on red/near-infrared C-dots. Due to their unique optical and optoelectrical properties in the red/near-infrared region, this interesting subclass of C-dots may be applied as important building blocks for several applications spanning from bioimaging and nano-thermometry, to luminescent solar concentrators (LSCs) and photoelectrochemical systems. Therefore, in this review the synthesis and the fluorescence mechanism together with the most important applications in thermometry, bio-imaging, LSCs and photocatalysis of red/near-infrared C-dots are considered. Furthermore, another aim is to highlight the available approaches to improve the carbonization degree and, additionally, to discuss the structure/composition correlated optical properties. Finally, outlooks, future perspectives and challenges are also discussed for these highly promising nanostructures.

Graphical abstract: Synthesis, optical properties and applications of red/near-infrared carbon dots

Article information

Article type
Review Article
Submitted
18 may 2022
Accepted
21 iyl 2022
First published
25 iyl 2022
This article is Open Access
Creative Commons BY license

J. Mater. Chem. C, 2022,10, 11827-11847

Synthesis, optical properties and applications of red/near-infrared carbon dots

Y. Han, L. Liccardo, E. Moretti, H. Zhao and A. Vomiero, J. Mater. Chem. C, 2022, 10, 11827 DOI: 10.1039/D2TC02044K

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