Research Article

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

Figure 9

Absorption spectra of HA-ZnS:Mn2+ QDs system. The HA concentration was fixed at 1.8315 × 10−4 M and the concentration of ZnS:Mn2+ QDs (8.0143 × 10−3 M) increased from top to bottom.