Volume 3 Issue 2
June  2024
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Pin Tian, Libin Tang, Kar-Seng Teng, Shu-Ping Lau. Graphene quantum dots: preparations, properties, functionalizations and applications[J]. Materials Futures, 2024, 3(2): 022301. doi: 10.1088/2752-5724/ad08cb
Citation: Pin Tian, Libin Tang, Kar-Seng Teng, Shu-Ping Lau. Graphene quantum dots: preparations, properties, functionalizations and applications[J]. Materials Futures, 2024, 3(2): 022301. doi: 10.1088/2752-5724/ad08cb
shu
Topical Review •
OPEN ACCESS

Graphene quantum dots: preparations, properties, functionalizations and applications

© 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the Songshan Lake Materials Laboratory
Materials Futures, Volume 3, Number 2
  • Received Date: 2023-08-24
  • Accepted Date: 2023-10-18
  • Rev Recd Date: 2023-10-07
  • Publish Date: 2024-02-06
doi: 10.1088/2752-5724/ad08cb
  • 1.

    Kunming Institute of Physics, 650223 Kunming, Yunnan, People’s Republic of China

  • 2.

    Department of Electronic and Electrical Engineering, Faculty of Science and Engineering, Swansea University, Bay Campus, Fabian Way, Swansea SA1 8EN, United Kingdom

  • 3.

    Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People’s Republic of China

  • Author to whom any correspondence should be addressed.

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    Abstract
  • AbstractZero-dimensional graphene quantum dots (GQDs) exhibit many different properties, such as strong fluorescence, nonzero bandgap and solubility in solvents, compared to two-dimensional graphene. GQDs are biocompatible and have low toxicity; hence, they are widely used in the biomedical field. The edge effect of GQDs is of particular interest because edge modification can regulate the performance of nanomaterials. In this review, various preparation methods for 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. The functionalization of GQDs by doping with heteroatoms and forming composites with other materials is studied, and the characteristics of these GQDs are also discussed. The applications of these GQDs in the fields of optics, electricity, optoelectronics, biomedicine, energy, agriculture and other emerging interdisciplinary fields are reviewed to highlight the enormous potential of nanomaterials. This review reports on the recent advancement in GQD research and suggests future directions for the development of GQDs.
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