Engineering functionalization and properties of graphene quantum dots (GQDs) with controllable synthesis for energy and display applications

Abstract

Graphene quantum dots (GQDs), new type of 0D nanomaterials, are composed of graphene lattice with sp2 bonding carbon core and characterized by their abundant edge and wide surface area. This...

GQD-PAN-based high-performance supercapacitor: an approach towards wealth from waste

“…Noteworthy progress has been achieved in sulfur composite battery research, 4–6 wherein innovative metal–air batteries 7 have led to a demonstrably extended lifespan. On the supercapacitor frontier, GQDs, 8–10 MXenes, 11–13 carbon composites, 14 metal–organic frameworks (MOFs), 15,16 and conducting polymers 17 have emerged as promising candidates, facilitating the fabrication of high-performance devices with exceptional rate capabilities. With the escalating demand for sustainable energy solutions, continued exploration and innovation in these domains are imperative for the development of next-generation energy storage technologies.…”

Recent advances in synergistic use of GQD-based hydrogels for bioimaging and drug delivery in cancer treatment

“…While pure graphene contains zero bandgap, making it a semiconductor, and also very hydrophobic, it is nevertheless a promising option for several biological uses. 13–15 Making graphene quantum dots (GQDs) from graphene typically involves cutting it into nanosized sheets, 16 chemically altering the edges, and surface functionalizing graphene, which has been investigated in many recent reviews. 17,18 Quantum confinement of π-electrons leads to improved size-dependent photochemical and photophysical properties, which are some of the benefits of GQDs.…”