Realization of lasing emission from graphene quantum dots using titanium dioxide nanoparticles as light scatterers.

@article{Zhu2013RealizationOL,
  title={Realization of lasing emission from graphene quantum dots using titanium dioxide nanoparticles as light scatterers.},
  author={Hai Zhu and Wenfei Zhang and Siu Fung Yu},
  journal={Nanoscale},
  year={2013},
  volume={5 5},
  pages={
          1797-802
        }
}
The luminescent capability of graphene quantum dots (GQDs) was investigated and compared with that of carbon nanodots (C-dots) obtained from the same functionalization process. It was found that the optical gain of GQDs is higher than that of C-dots due to their geometrical advantages such as larger surface area to volume ratio and smaller volume. Under optical excitation at 266 nm, lasing emission was observed from a Fabry-Perot cavity containing a mixture of GQDs and TiO(2) nanoparticles… 
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