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A review: recent advances in preparations and applications of heteroatom-doped carbon quantum dots

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Abstract

Carbon quantum dots (CQDs) are widely used in optoelectronic catalysis, biological imaging, and ion probes owing to their low toxicity, stable photoluminescence, and ease of chemical modification. However, the low fluorescence yield and monochromatic fluorescence of CQDs limit their practical applications. This review summarizes the commonly used approaches for improving the fluorescence efficiency of CQDs doped with non-metallic (heteroatom) elements. Herein, three types of heteroatom-doped CQDs have been investigated: (1) CQDs doped with a single heteroatom; (2) CQDs doped with two heteroatoms; and (3) CQDs doped with three heteroatoms. The limitations and future perspectives of doped CQDs from the viewpoint of producing CQDs for specific applications, especially for bioimaging and light emitting diodes, have also been discussed herein.

Graphical abstract: A review: recent advances in preparations and applications of heteroatom-doped carbon quantum dots

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Article information


Submitted
17 Mar 2020
Accepted
05 May 2020
First published
08 May 2020

Dalton Trans., 2020, Advance Article
Article type
Perspective

A review: recent advances in preparations and applications of heteroatom-doped carbon quantum dots

X. Kou, S. Jiang, S. Park and L. Meng, Dalton Trans., 2020, Advance Article , DOI: 10.1039/D0DT01004A

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