Synthesis and Characterization of Graphene Quantum Dots for Energy and Optical Applications

Graphene quantum dots (GQDs) have gained widespread interest in advanced applications such as solar cells, detectors, optoelectronic devices, sensors, energy storage, and biomedicine due to their unique characteristics, including small size, high fluorescence emission, and chemical stability. In this study, GQDs were synthesized through the hydrothermal method and several different approaches. The structure of the samples was initially investigated using XRD analysis. Subsequently, their optical properties were evaluated and compared using UV-Vis and PL spectroscopy. A significant improvement in emission properties, accompanied by an increase in emission intensity, was observed for the sample synthesized with cationic resin. This study explores the impact of various synthesis methods on the properties of graphene quantum dots, presenting innovative strategies to optimize their performance across diverse applications, including technology and renewable energy.

کلیدواژه ها:

Graphene quantum dots ، Hydrothermal ، Luminescent ، Synthesis