Figure 1.

Fabrication of carbon flakes in dependence on various fabrication parameters. The scanning electron micrographs are from samples mentioned in Table 1. (a) The sample present in the cuvette with a certain concentration of supramolecular complex (SMC) in the solution is irradiated with laser for a certain amount of time. There is also the possibility to apply an electric field across the substrate to affect the formation of flakes. Flakes are formed by varying the laser irradiation time: (b) Sample C-2 with a laser irradiation time of 40 min and (c) sample C-4 with a laser irradiation time of 80 min. Varying SMC concentration: (d) Sample C-5 with an SMC concentration of 6 g/L and (e) sample C2 with an SMC concentration of 2 g/L. Images in (f) and (g) show examples of flakes from sample C-3 resulting from a fabrication with an external electric field switched on and causing lateral elongation of flakes.