期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 330, 期 2, 页码 483-487出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2008.10.062
关键词
Cu2S; Superlattice structures; Spherical nanocrystal; Self-assembly
资金
- National Natural Science Foundation of China and Hi-Tech Research and Development Program of China [2006AA03Z3592]
High-quality monodisperse Cu2S nanocrystals (sizes from 2 nm to 20 nm) have been successfully synthesized by the reaction of copper stearate (CuSt(2)) and dodecanethiol (DDT) in 1-octadecene (ODE). The nanocrystals were characterized using X-ray diffraction (XRD), X-ray photoelectron spectrum (XPS), and transmission electron microscopy (TEM). These as-prepared Cu2S nanocrystals with certain sizes have been found with good self-assembly behaviors, and they were easily to assemble into two-dimensional and three-dimensional superlattice structures. DDT served as both Sulfur source and capping ligand, and was found a key factor to affect the growth and the self-assembly behaviors of the Cu2S nanocrystals. (C) 2008 Elsevier Inc. All rights reserved.
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