Optoelectronic properties of amorphous carbon-based nanotube and nanoscroll

Free-standing monolayer amorphous carbon (MAC) is a pure structure composed of randomly distributed atom rings with different sizes, which was recently synthesized. In this work, we carried out ab initio and tight-binding calculations to investigate the optoelectronic properties MAC its derived nanotube nanoscroll configurations. Our results show MAC, tube, scrolls exhibit similar electronic behavior. All structures absorb from infrared ultraviolet, maximum absorption peaks visible-ultra violet ($\sim 3.2$ eV). The minimum reflectivity values are in range 0.3-0.5 (infrared) 0.1-0.0 (ultraviolet), making these materials good candidates ultraviolet filters.