Synthesis and Optical Properties of Thiol Functionalized CdSe/ZnS (Core/Shell) Quantum Dots by Ligand Exchange

Figure 6

NMR spectra of an ¹H solution for (a) TOPO in toluene; (b) no ODT added, 1.82×10⁻⁴ mol/L of CdSe/ZnS quantum dots in toluene solution; (c) 1.82×10⁻⁶ mol/L of ODT in toluene solution with 1.82×10⁻⁴ mol/L of CdSe/ZnS quantum dots; (d) 1.82×10⁻³ mol/L of ODT in toluene solution with 1.82×10⁻⁴ mol/L of CdSe/ZnS quantum dots; (e) Z19F4 1.82×10⁻¹ mol/L of ODT with 1.82×10⁻⁴ mol/L of CdSe/ZnS quantum dots in toluene solution; (f) Z19F4 zoom 1.82×10⁻¹ mol/L of ODT with 1.82×10⁻⁴ mol/L of CdSe/ZnS quantum dots in toluene solution.