Optoelectronic properties of amorphous carbon-based nanotube and nanoscroll

Author(s)

Tromer, Raphael M. ^{[1, 2]} ; Felix, Levi C. ^{[1, 2]} ; Ribeiro, Luiz A. ^[3] ; Galvao, Douglas S. ^{[1, 2]}

Affiliation

^[1] Univ Estadual Campinas, Dept Appl Phys, BR-13083970 Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Ctr Computat Engn & Sci, BR-13083970 Campinas, SP - Brazil

^[3] Univ Brasilia, Inst Phys, BR-70919970 Brasilia, DF - Brazil

• Document type: Journal article
• Source: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES; v. 130, JUN 2021.
• Web of Science Citations: 1

Abstract

Free-standing monolayer amorphous carbon (MAC) is a pure carbon 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 of MAC and its derived nanotube and nanoscroll configurations. Our results show MAC, tube, and scrolls exhibit similar electronic behavior. All structures absorb from infrared to ultraviolet, with maximum absorption peaks the visible-ultra violet (similar to 3.2 eV). The maximum and minimum reflectivity values are in the range 0.3-0.5 (infrared) and 0.1-0.0 (ultraviolet), making these materials good candidates to ultraviolet filters. (AU)

• FAPESP's process: 13/08293-7 - CCES - Center for Computational Engineering and Sciences
• Grantee: Munir Salomao Skaf
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC