Effects of different metal ions on the fluorescence of CdSe/ZnS quantum dots capped with various thiolate ligandsElectronic supplementary information (ESI) available: Fluorescence stability test of Cys-QDs; Stern-Volmer plots for the PL quenching of MPA-QDs in the presence of Cu2+, Fe3+, and Pb2+; Stern-Volmer plots for the PL quenching of DPA-QDs, MPA-QDs, and MSA-QDs in the presence of Pb2+; fluorescence decay curves of Cys-QDs in the absence or presence of Cu2+ and Ni2+; time-resolved fluores

In this report, we systematically studied the effects of different metal ions on the fluorescence of common thiolate ligand capped quantum dots. Generally, heavy metal ions exhibited much more significant fluorescence quenching. Also, the coordination capability and steric hindrance of the ligand jointly affect the quenching efficiency. In this report, we systematically studied the effects of different metal ions on the fluorescence of common thiolate ligand capped quantum dots.