title: Solvothermal synthesis of well-dispersed ZnSe microspheres.
abstract: Well-defined crystalline ZnSe microspheres have been fabricated successfully via a simple solvothermal route under mild conditions in the presence of ethylenediamine tetraacetic acid disodium salt (Na(2)EDTA) and octadecylamine (ODA). X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrum (EDS), X-ray photoelectron spectra (XPS), Fourier transform-infrared spectroscopy (FT-IR), and photoluminescence spectra (PL) were used to characterize the phase structures, morphologies, and properties of the products. The result of XRD demonstrated that we obtained ZnSe products crystallized well with a stilleite structure. The influencing elements such as reaction time, sodium hydroxide (NaOH), addition of chelating reagent Na(2)EDTA, and the water/ethanol volume ratio were investigated, and the possible formation mechanism was also proposed. Furthermore, the experimental result indicated that ZnSe microspheres showed blue emission under ultraviolet excitation.
authors.affiliation: Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China.
authors.forename: Xiaolei
authors.initials: X
authors.lastname: Ren
authors.forename: Qiuyu
authors.initials: Q
authors.lastname: Li
authors.forename: Yannan
authors.initials: Y
authors.lastname: Xue
authors.forename: Xuefeng
authors.initials: X
authors.lastname: Zhai
authors.forename: Min
authors.initials: M
authors.lastname: Yu