Effects of different metal ions on the fluorescence of CdSe/ZnS quantum dots capped with various thiolate ligands.
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.
National Center for Nanoscience and Technology of China, Beijing 100190, China. zhaoyl@nanoctr.cn.
Tao
T
Zeng
Yanxi
Y
Hu
Na
N
Wang
Chuanqin
C
Xia
Shoujian
S
Li
Yan
Y
Zu
Lei
L
Liu
Zhiyi
Z
Yao
Yuliang
Y
Zhao
Hai-Chen
HC
Wu