Study of Electrical Charge Storage in Polymer‐Carbon Quantum Dot Composite

Abstract Novel carbon quantum dots (CQDs) with unexplored potential, are interesting nanomaterials for electronic investigations. Formation of surface defect sites in these Q‐dots is a consequence of combinations of various carbon hybridizations. In this work nanocomposites of CQDs with an electronically inert polymer, poly vinyl alcohol (PVA), have been electrically characterized. The electronic properties were observed to be tunable by compositions of component materials. A detail conduction mechanism of charge storage within composites’ layer has been worked out. The dielectric properties of composites are observed to be dependent on morphologies developed from segregation of CQDs within composites. The composites possess improved dielectric properties compared to individual component materials. Simulation of the dielectric properties reveals that the nanocomposites actually derive qualities of its’ component materials.