Hydrothermally Synthesized Pure and Mn-Doped ZnS/ZnO Nanoparticles as Potential Candidate in Capacitive Devices

Remarkable efforts have been dedicated to developing energy storage devices with hybrid design and nano-scale approaches. This study used a hydrothermal technique to synthesize pure and Mn-doped ZnS/ZnO hybrid nanocomposites. The chemical composition and crystallinity of ZnS/ZnO nanoparticles were confirmed by XRD analysis. The morphology of the nanocomposites was studied by scanning electron microscopy, which demonstrated their oval-shaped formation. Moreover, the variation of DC conductivity ( σ ) was observed to be directly proportional to the temperature. Electrical measurements demonstrated that the electrical resistivity ( ρ d.c ) increased with doping at the same applied voltage. Therefore, the synthesized materials have a significant dielectric performance that may direct their application in energy storage devices.