Highly stable two-dimensional graphene oxide: Electronic properties of its periodic structure and optical properties of its nanostructures*

Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0303600) and the National Natural Science Foundation of China (Grant Nos. 11474207 and 11374217).

Zhang Qin1, Zhang Hong1, 2, †, Cheng Xin-Lu2
       

(color online) (a) Absorption spectra of rectangular C2O nanostructures 2 × 5X, 4 × 5X, and 6 × 5X, respectively, and the incident light polarizes along the armchair-edge. The resonant frequencies are 7.5 eV (black curve), 7.32 eV (red curve), and 7.3 eV (blue curve), respectively. Absorption peaks are 10.41/eV, 29.13/eV, and 41.10/eV. (b) Absorption spectra of rectangular C2O nanostructures 4 × 3X, 4 × 5X, and 4 × 7X, respectively, polarization direction is along the armchair-edge. The resonant frequencies are 7.15 eV (black curve), 7.32 eV (red curve), and 7.36 eV (blue curve), respectively, and the absorption peaks are 26.23/eV, 29.13/eV, and 33.78/eV.