Figure 3

Fluorescent properties of as-synthesized CS-ZnS and CS-ZnS:Mn ²⁺ QDs. (A) UV-Vis (left) and PL (right) spectra, photographs, (insets) of CS-ZnS QDs (a) and CS-ZnS:Mn²⁺ QDs (b) prepared in 0.1% CS under 20 kGy (Mn:Zn is 1:100). (B) PL spectra and YQs of CS-ZnS:Mn²⁺ QDs (Mn:Zn is 1:100) prepared in 0.1% CS under different γ-radiation doses, λ_ex = 290 nm. (C) PL spectra and QYs of CS-ZnS:Mn²⁺ QDs with different doping concentrations prepared in 0.1% CS under 20 kGy, λ_ex = 290 nm.