PRODUCTION AND CHARACTERIZATION OF GRAPHENE QUANTUM DOTS

Abstract

Graphene quantum dots (GQDs) have great potential due to their advantageous characteristics of non- zero band gap, highly tunable property, biocompatibility, and ability to accommodate functional groups and dopants. Herein GQDs were synthesized by bottom-up approach of cost-effective hydrothermal technique using grass waste as a feasible carbon source. The obtained GQDs were confirmed through different characterization techniques. The structural properties were studied by X-Ray Diffraction whereas morphology of GQDs were examined through Transmission Electron Microscopy. The Optical characteristics were studied using Absorption spectroscopy and Photoluminescence while Fourier Transform Infrared Spectroscopy confirms the presence of functional groups and chemical bonds within GQDs.