One-Step, In Situ Hydrothermal Fabrication of Cobalt-Doped ZnO/CdS Nanosheets for Optoelectronic Applications

An in-situ hydrothermal process was used to create Co-doped ZnO/CdS nanosheets in order examine the effects of divalent impurity (Co) ions on structural, morphological, optical, and magnetic characteristics test material. For both ZnO CdS, XRD verified development a hexagonal wurtzite structure. SEM, TEM, HR-TEM studies produced sheet-like morphology. Elemental mapping XPS examination presence essential elements (S, Cd, O, Co, Zn). Co-doping dramatically increased nanosheets’ ability absorb light visible area. Comparing bandgap energy pure nanocomposites, (2.59 eV) well-regulated. The PL spectrum at 577 nm showed prominent yellow emission band that attributed 4A2g(F) ? 4T1g(F) transition. Improvement room temperature ferromagnetic properties observed due doping Co2+ ions. Warm white harvesting confirmed by estimated CCT value (3540 K). material appears be suitable for creation next-generation optoelectronic devices.