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Frontiers in carbon dots: design, properties and applications

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Abstract

Carbon dots (CDs), which are emerging as a novel class of carbon-based functional nanomaterials, can be fabricated from various carbon-based materials such as graphite, activated carbon, carbon nanotubes and many other organic materials. Recently, researchers have paid attention to emerging CDs and investigated their application prospects in a variety of fields, including optical, energy and biomedical technologies. In this review, we provide an up-to-date account of the design, preparation, fundamentals and applications of functional CDs. We begin with an overview on the synthetic methods of novel CDs, including “bottom-up” and “top-down” approaches, post-synthetic modification and functionalisation, through which the diverse properties of CDs such as optical, dispersibility and biocompatibility properties are introduced. We then showcase the applications of advanced CDs in different fields, including optical applications (data security, sensors, light-emitting diodes, and chiral), energy applications (photocatalysts, solar photovoltaics, supercapacitors, and lithium-ion batteries) and promising biomedical applications (bioimaging and nanomedicine). We discuss the fundamental design ideas of such emerging and unique CDs, introduce their synthetic strategies and emphasise their significant applications. This review is expected to provide significant impetus towards the rapid expansion of this new materials field which is rooted in materials chemistry. The fields covered include physics, chemistry, biology, nanotechnology, energy, polymers, device engineering and other interdisciplinary areas.

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Publication details

The article was received on 25 Jun 2019, accepted on 18 Sep 2019 and first published on 19 Sep 2019


Article type: Review Article
DOI: 10.1039/C9QM00415G
Mater. Chem. Front., 2019, Advance Article

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    Frontiers in carbon dots: design, properties and applications

    Z. Li, L. Wang, Y. Li, Y. Feng and W. Feng, Mater. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QM00415G

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