Fig. 8

UV–vis absorbance spectra of prepared Mn: CdS QDs and (Mn/Co): CdS QDs at different dopant concentrations are represented as A, B, C, D, and E.

UV–vis absorbance spectra of prepared Mn: CdS QDs and (Mn/Co): CdS QDs at different dopant concentrations are represented as A, B, C, D, and E.