Executive Summary : | Due to a surge in the dependency on fossil fuels, the increasing expense of energy, global warming, and deforestation are the main issue of the general public. Decreasing these issues is an undeniably significant errand that can be achieved by working on elective types of energy and capacity innovation. Supercapacitors have been drawing in incredible consideration because of its great cycling steadiness, ultrafast charge-release, and long-haul cycling life. The creation of minimized supercapacitors has turned into a basic movement in light of the fact that supercapacitors are fitted with high-power benefits and high energy battery limits. The challenging task is to develop supercapacitors with high cyclic stability and energy density and it is recognized that C-QDs definitely stand out altogether and have shown incredible application potential as a high functioning supercapacitor gadget. Great strength, higher explicit capacitance, high energy thickness C-QDs give a better approach to lift supercapacitor potential. Carbon-based QDs refer to zero-dimensional quasi-spherical particle that are predominantly made of carbon atoms and display a few unique properties. Carbon-based Quantum Dots (C-QDs) are a particular group of emerging nanomaterials that have diverse application in energy storage and have remarkable electrochemical properties. The CQDs containing different functional groups which can be modified by surface tuning through different chemical interactions. The synthesisation of CQDs will be done through different techniques which includes oxygen-containing functional groups. The surface functionalization of CQDs will be enhanced by passivating through covalent bonding, with heteroatom containing functional group. Subsequently, both the surface functional groups and the quantum control impact contribute to C-QDs’ bandgap energy. |