Synthesis and Optical Properties of Thiol Functionalized CdSe/ZnS (Core/Shell) Quantum Dots by Ligand Exchange
Figure 4
(a) Photoluminescence emission spectra of CdSe/ZnS QDs before and after being molecularly linked by 1,4-benzenedimethanethiol (molar ratio of ligands to QDs: 1/7). (b) Photoluminescence emission spectra of molecularly linked CdSe/ZnS QDs with increasing concentration of 1,4-benzenedimethanethiol (molar ratio of ligands to QDs: 1/7, 1/2, 2/1, resp.).
