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Graphene Quantum Dots: Preparations, Properties, Functionalizations and Applications

Vincent Teng Orcid Logo

Materials Futures

Swansea University Author: Vincent Teng Orcid Logo

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Abstract

Zero-dimensional graphene quantum dots (GQDs) exhibit many different properties, such as strong fluorescence, non-zero band gap and solubility in solvents, as compared to the two-dimensional graphene. GQDs are biocompatible with low toxicity, hence they are widely used in the biomedical field. The e...

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Published in: Materials Futures
ISSN: 2752-5724
Published: IOP Publishing
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa64771
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Abstract: Zero-dimensional graphene quantum dots (GQDs) exhibit many different properties, such as strong fluorescence, non-zero band gap and solubility in solvents, as compared to the two-dimensional graphene. GQDs are biocompatible with low toxicity, hence they are widely used in the biomedical field. The edge effect of GQDs is of particular interest as modification of its edge can regulate the performance of the nanomaterials. In this review, various preparation methods of GQDs, which can be divided into three main categories, namely top-down, bottom-up and chemical methods, are discussed. The unique optical, electrical, thermal and magnetic properties of GQDs are reviewed. GQDs functionalization by means of doping with heteroatom as well as forming composite with other materials are studied and the characteristics of these GQDs are also discussed. Application of these GQDs in the fields of optics, electricity, optoelectronics, biomedicine, energy, agriculture and in other emerging interdisciplinary fields are reviewed to highlight the enormous potentials of the nanomaterials. This review reports on the recent advancement in the research of GQDs and suggests the future direction on the development of GQDs
College: Faculty of Science and Engineering
Funders: This work was supported by National Natural Science Foundation of China (Grant Nos. 61106098, 51201150, and 11374250), the Key Project of Applied Basic Research of Yunnan Province, China (Grant No. 2012FA003), PolyU grant (1-ZVGH) and the Research Grants Council (RGC) of Hong Kong (Project Nos. PolyU 153030/15P and PolyU 153271/16P).