Figure 2.

TEM images of three modified GQDs deposited on copper grids. (a) The TEM image of aGQDs. (b) Diameter distribution of the cGQDs. (c) The TEM image of dGQDs.

Yuan et al. Nanoscale Research Letters 2014 9:108   doi:10.1186/1556-276X-9-108
Download authors' original image