Research Projects

The nanomaterials known as chiral quantum dots (CQDs) are chiral, meaning their mirror image cannot be superimposed. It has also been suggested that chirality plays a significant role in nanotechnology, and the development of nanobiotechnology in particular and nanoscience in general depends on an awareness of the basic ideas about chirality in nano systems. The distinct optical activity of chiral molecules is combined with the adjustable characteristics of quantum dots. CQDs can be prepared using several methods, including one-step hydrothermal synthesis, ligand–induced chirality, self-assembly, etc. These materials are becoming increasingly popular because they are potentially used in biomedicine (specific antibacterial and cytotoxic drug-delivery agents), detection (chiral sensors), chiral catalysis, and photocatalysis, among other applications. In recent years, CQDs made of twisted bilayer graphene, a novel class of artificial chiral materials, have sparked significant interest due to their intriguing chiral activity features. The size, shape, and twist angle of these twisted graphene quantum dots (QDs) can be finely tuned to regulate their unique and tunable optical, magnetic, and electrical properties. In our proposed project, we aim to calculate the electronic structure of these unique CQDs, a novel and promising area of research. We employ variational and exact numerical methods and other theoretical techniques to investigate the effects of twist angle, confinement potential, hydrogen-like impurities, and spin-orbit interaction on the properties of CQDs. The potential applications of these graphene CQDs in photovoltaics and optoelectronics enhance their novelty and make them highly attractive for future research and development. Our research, which involves calculating the electronic structure of CQDs composed of twisted graphene layers, has the potential to significantly impact the field of nanotechnology. By providing insights into the unique properties of these chiral quantum dots, our work can be directly applied to the development of practical and efficient optoelectronic and photovoltaic devices. This direct application of our research to the development of optoelectronic and photovoltaic devices underscores the practical implications of our work and its potential to advance the field with tangible and applicable results.