title: Synthesis and assembly of monodisperse spherical Cu2S nanocrystals.
abstract: High-quality monodisperse Cu(2)S 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 Cu(2)S 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 Cu(2)S nanocrystals.
authors.affiliation: Key Lab for Special Functional Materials of Ministry of Education, Henan University, Kaifeng, Henan, 475004, PR China.
authors.forename: Sen
authors.initials: S
authors.lastname: Li
authors.forename: HongZhe
authors.initials: H
authors.lastname: Wang
authors.forename: WeiWei
authors.initials: W
authors.lastname: Xu
authors.forename: HongLei
authors.initials: H
authors.lastname: Si
authors.forename: XiaoJun
authors.initials: X
authors.lastname: Tao
authors.forename: Shiyun
authors.initials: S
authors.lastname: Lou
authors.forename: Zuliang
authors.initials: Z
authors.lastname: Du
authors.forename: Lin Song
authors.initials: LS
authors.lastname: Li