Sulphur doping: a facile approach to tune the electronic structure and optical properties of graphene quantum dots.

  title={Sulphur doping: a facile approach to tune the electronic structure and optical properties of graphene quantum dots.},
  author={Xueming Li and Shu Ping Lau and Libin Tang and Rong-bin Ji and Peizhi Yang},
  volume={6 10},
Sulphur-doped carbon-based materials have attracted a great deal of interest because of their important applications in the fields of oxygen reduction reactions, hydrogen storage, supercapacitors, photocatalysts and lithium ion batteries. Here, we report a new member of sulphur-doped carbon-based materials, i.e. sulphur doped graphene quantum dots (S-GQDs). The S-GQDs were prepared by a hydrothermal method using fructose and sulphuric acid as source materials. Absorption and photoluminescence… 

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