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Afterglow of carbon dots: mechanism, strategy and applications

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Abstract

As a newly emerged carbon-based luminescent nanomaterial, carbon dots (CDs) have attracted considerable attention due to their outstanding features. Their photoluminescence (PL) properties and relevant applications have been extensively studied and reviewed in recent years. However, although their afterglow feature had also been discovered and had seen some important advances, no review article was published to systematically summarize such advances. Considering the scientific importance and promising applications of afterglow materials, herein, we aim to summarize the recent remarkable advances of the afterglow phenomena of CDs, particularly focusing on their room temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF). This review will firstly simply introduce the classification of CDs, and then provide comprehensive discussions regarding the relationships between their structure and afterglow properties. Furthermore, their potential applications in anti-counterfeiting, information protection, sensing, etc., are summarized. Finally, challenges and opportunities in the future of this newly emerged carbon-based afterglow material are proposed.

Graphical abstract: Afterglow of carbon dots: mechanism, strategy and applications

  • This article is part of the themed collection: Carbon Dots
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Publication details

The article was received on 14 Sep 2019, accepted on 23 Oct 2019 and first published on 24 Oct 2019


Article type: Review Article
DOI: 10.1039/C9QM00578A
Mater. Chem. Front., 2019, Advance Article

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    Afterglow of carbon dots: mechanism, strategy and applications

    K. Jiang, Y. Wang, Z. Li and H. Lin, Mater. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QM00578A

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