The van der Waals radius of fluorine is 147 pm which is lower than carbon suggesting it is Hence the semi-ionic nature of C-F bond making F-doped graphene viable as electrode materials for supercapacitor applications. Fluorographene is the thinnest insulator due to its wide bandgap of 3 eV, which arise as a result of greater extent of sp 3 bonding with carbon atoms. Moreover, the hydrophobicity of the graphene was enhanced to the greater extent due to .