Recent Advancement of Luminescent Graphene Quantum Dots for Energy-Related Applications

Abstract

This chapter emphasizes the current developments in the synthesis of graphene fragments of porous carbon material known as graphene quantum dots (GQDs). This chapter also discusses their applications in energy storage as a supercapacitors, batteries, fuel cells, and solar cells. Herein, two different approaches including top-down and bottom-up are discussed. These methods containing hydrothermal or solvothermal, “microwave-assisted, electrochemical oxidation, controllable synthesis,” oxidative cleavage, and “carbonization from small molecules or polymers with advantages and disadvantages for a large perceptive about the synthesis of GQDs are introduced. In the end, the future challenges and the potential application of GQDs in energy-related areas are described. Finally, a brief outlook will be provided for directing out the problems need to be developed for advancement. We expect that these research schemes of GQDs and their belongings will play major roles in novel electronic optoelectronic devices with many more applications.