Graphene-Graphullerene Heterostructure: A Novel Material for High-Performance Capacitors

This study introduces a novel graphene-graphullerene heterostructure as a promising material for high-performance capacitors. Compared to pristine graphene, this heterostructure exhibits a significantly larger surface area and porosity which enhance its energy storage capacity. Pristine graphullerene is a semiconductor with a bandgap of 0.92 eV and its integration with graphene effectively modifies its electronic properties, rendering it conductive as confirmed by band structure analysis. The unique combination of graphene's high conductivity and graphullerene's extended surface area and porosity presents a promising avenue for developing capacitors with exceptional performance characteristics.