Fig. 1

(a) Schematic preparation processes, (b) TEM and FFT images of GQD structures, where FFT selection intervals are pointed out by box, (c) Photos of the colloidal crystal samples, synthesized with the parameters in Table 1.
(a) Schematic preparation processes, (b) TEM and FFT images of GQD structures, where FFT selection intervals are pointed out by box, (c) Photos of the colloidal crystal samples, synthesized with the parameters in Table 1.