Tuning quantum capacitance in 2D graphene electrodes: the role of defects and charge carrier concentration

• DOI: 10.1039/d2tc04037a
• Publication Date: 2023-04-17T06:03:36Z
• Authors: Ayaz Hassan; Isabela A. Mattioli; Rafael N. P. Colombo; Frank N. Crespilho

Electrochemical oxidation of a graphene monolayer results in a G-band shift in the micro-Raman spectrum and an increase in the quantum capacitance, resulting from an increase in the number and density of defects and charge carrier concentration in the graphene structure.