Large-scale control of enhancement and quenching of photoluminescence for ZnSe/ZnS quantum dots and Ag nanoparticles in aqueous solution

Yin Shaoyi¹, Liao Liming¹, Luo Song¹, Zhang Zhe¹, Zhang Xiaoyu¹, Lu Jian², Chen Zhanghai^{1, †}

(a) The photoluminescence spectra of the ZnSe/ZnS QDs (excited by 325 nm cw laser) and the absorption spectra of the employed Ag-NPs. (b) The schematic diagram of distribution and interaction for the ZnSe/ZnS QDs and Ag-NPs in aqueous solution.