Figure 1

(a) HR-TEM image of fGQDs, (b) inset of fGQDs size distribution, (c) inter-planar spacing in fGQD, (d) SAED pattern of fGQD, and (e) Raman spectra of GQDs and fGQDs.

(a) HR-TEM image of fGQDs, (b) inset of fGQDs size distribution, (c) inter-planar spacing in fGQD, (d) SAED pattern of fGQD, and (e) Raman spectra of GQDs and fGQDs.