Preparation and characterization of CdS nanowires by polyethylene glycol-assisted solvothermal reaction

摘要

Cadmium sulfide nanowires have been successfully synthesized via polyethylene glycolassistedsolvothermal method at 200 oC for 24 h. The products were characterized by Xraydiffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM),selected area electron diffraction (SAED), high resolution electron microscopy (HRTEM),transmission electron microscopy (TEM) and UV-Visible spectroscopy, respectively. TheXRD and SAED results indicated that as-synthesized CdS samples are single phase withhexagonal structure. The SEM images show morphologies of CdS nanorods and nanowiresfor PEG-free and PVA-added in precursors with growth direction along [001] direction.The optical absorbance spectra of products showed that a strong absorption appeared at487 nm for CdS nanorods and 480 nm for CdS nanowires.Cadmium sulfide nanowires have been successfully synthesized via polyethylene glycolassistedsolvothermal method at 200 oC for 24 h. The products were characterized by Xraydiffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM),selected area electron diffraction (SAED), high resolution electron microscopy (HRTEM),transmission electron microscopy (TEM) and UV-Visible spectroscopy, respectively. TheXRD and SAED results indicated that as-synthesized CdS samples are single phase withhexagonal structure. The SEM images show morphologies of CdS nanorods and nanowiresfor PEG-free and PVA-added in precursors with growth direction along [001] direction.The optical absorbance spectra of products showed that a strong absorption appeared at487 nm for CdS nanorods and 480 nm for CdS nanowires.