Photoluminescent graphene quantum dots (GQDs) have received enormous attention because of their unique chemical, electronic and optical properties. Here a series of GQDs were synthesized under hydrothermal processes in order to investigate the formation process and optical properties of N-doped GQDs. Citric acid (CA) was used as a carbon precursor and… (More)
This Article contains an error in figure 5. Data from figure 1b is duplicated in figure 5e. The correct figure 5 appears below as figure 1.