| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 607926 | Journal of Colloid and Interface Science | 2013 | 8 Pages |
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 (Na2EDTA) 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 Na2EDTA, 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.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (154 K)Download as PowerPoint slideHighlights► Well-crystallized ZnSe microspheres have been successfully synthesized. ► The influence of the dosage of NaOH and amount of Na2EDTA were clearly shown. ► The water/ethanol volume ratio has a strong effect on the ZnSe microspheres. ► The growth mechanism and process for the formation of final samples were proposed.
