Figure 5: Hole depletion of CdSe QDs.

The emission quenching of CdSe QDs with gradual addition of NaHA in the presence of PAA (a) and in the presence of PAA and PEI (b). Concentrations: CdSe QDs (1.6 × 10⁻⁵ mol·L⁻¹), PAA (0.25 g·L⁻¹), PAA-g-Fe₂S₂ (0.25 g·L⁻¹), PEI (0.46 g·L⁻¹), pH 4.1.