Formation of colloidal nanocrystal clusters of iron oxide by controlled ligand stripping.
We report a "ligand stripping" method for the creation of secondary structures of colloidal nanocrystals. Using iron oxide as an example, we demonstrate that the use of diols as "stripping agents" allows the controllable removal of the original capping ligands and induces aggregation of nanocrystals into well-defined clusters.
Department of Chemistry, University of California, Riverside, CA 92521, USA. yadong.yin@ucr.edu and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China. ceswmm@mail.sysu.edu.cn.
Junxiang
J
Fu
Department of Chemistry, University of California, Riverside, CA 92521, USA. yadong.yin@ucr.edu.
Le
L
He
Department of Chemistry, University of California, Riverside, CA 92521, USA. yadong.yin@ucr.edu.
Wenjing
W
Xu
MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China. ceswmm@mail.sysu.edu.cn.
Jianle
J
Zhuang
MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China. ceswmm@mail.sysu.edu.cn.
Xianfeng
X
Yang
School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou, 341000, P. R. China.
Xiaozeng
X
Zhang
MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technology, School of Chemistry and Chemical Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China. ceswmm@mail.sysu.edu.cn.
Mingmei
M
Wu
Department of Chemistry, University of California, Riverside, CA 92521, USA. yadong.yin@ucr.edu.
Yadong
Y
Yin