Graphene quantum dots: preparations, properties, functionalizations and applications

Pin Tian, Libin Tang, Kar Seng Teng, Shu Ping Lau

Research output: Journal article publicationReview articleAcademic researchpeer-review

17 Citations (Scopus)

Abstract

Zero-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.

Original languageEnglish
Article number022301
JournalMaterials Futures
Volume3
Issue number2
DOIs
Publication statusPublished - 1 Jun 2024

Keywords

  • functionalizations and applications
  • graphene quantum dots: preparations
  • properties

ASJC Scopus subject areas

  • Biomaterials

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