Efficient Photoluminescence of Mn²⁺-Doped ZnS Quantum Dots Sensitized by Hypocrellin A

Figure 4

Fluorescence emission spectra of ZnS:Mn²⁺ QDs under the different doping level of Mn (from 1.0% to 5.0%). The excitation wavelength for all the samples was fixed at 300 nm.