Deep ultraviolet photoluminescence of water-soluble self-passivated graphene quantum dots.

  title={Deep ultraviolet photoluminescence of water-soluble self-passivated graphene quantum dots.},
  author={Libin Tang and Rong-bin Ji and Xiangke Cao and Jingyu Lin and Hongxing Jiang and Xueming Li and Kar Seng Teng and Chi Man Luk and Songjun Zeng and Jianhua Hao and Shu Ping Lau},
  journal={ACS nano},
  volume={6 6},
Glucose-derived water-soluble crystalline graphene quantum dots (GQDs) with an average diameter as small as 1.65 nm (∼5 layers) were prepared by a facile microwave-assisted hydrothermal method. The GQDs exhibits deep ultraviolet (DUV) emission of 4.1 eV, which is the shortest emission wavelength among all the solution-based QDs. The GQDs exhibit typical excitation wavelength-dependent properties as expected in carbon-based quantum dots. However, the emission wavelength is independent of the… Expand
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  • Y. Li, Yue Hu, +4 authors L. Qu
  • Materials Science, Medicine
  • Advanced materials
  • 2011
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