“…S1 (ESI †) was chosen as a representative of GQDs and a host organic molecule for ZnO clusters. Belonging to the neutral polycyclic aromatic hydrocarbons (PAHs) C 96 H 24 molecule is commonly used model of GQDs, [71][72][73] and it is a reasonable choice to investigate the local surface phenomena (adsorption, diffusion, nucleation, clustering, substitutional doping so on) at the graphene and to explore the optical properties of GQDs (absorption, fluorescence). Thus, the using of C 96 H 24 as a core molecule to design ZnOembedded GQDs is warranted.…”