Abstract
The Mn, La dual doped ZnS QDs synthesized using co-precipitation method and the XRD analysis confirmed the cubic phase and HR-TEM estimates the average crystallite size ∼ 2 nm. FT-IR spectroscopy and EDAX ensure the purity of the prepared samples. The surface morphological examination discovered the surface structure and particle aggregation of the sample. From the UV-visible optical spectroscopy, It is observed that La 2% doped Mn:ZnS tuned large band gap (3.98 eV).The size dependence of the Zn0.98-xMn0.02LaxS QDs appears to be confirmed by the apparent shift of the absorption and emission peaks of the QDs. The optical absorbance was increased as the increase of La concentration. Defect-induced red emission was obtained through PL study. The Cyclic Voltagram (CV) findings demonstrate that the electrical properties of ZnS electrolytes can be further enhanced by co-doping with an ideal ratio of La3+ and Mn2+ ions.
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