Abstract

CdS nanorods were successfully synthesized by pyrolysis using trioctylphosphine (TOP) as a coordinating solvent. For this pyrolysis,cadmium acetate dihydrate and sulfur powder were used as the cadmium source and sulfur source,respectively. The structure,morphology,and optical properties of the prepared samples were characterized by X-ray diffraction (XRD),transmission electron microscopy (TEM),high-resolution transmission electron microscopy (HRTEM),ultraviolet-visible (UV-Vis) spectroscopy,photoluminescence (PL),Fourier transform infrared (FTIR) spectroscopy,and nuclear magnetic resonance (NMR) 31P spectroscopy. The effects of different molar ratios of Cd-to-S and the reaction concentrations on the morphology and size of the CdS nanostructures were investigated. The results indicated that the wurtzite CdS nanorods,with a typical diameter of 4.5 nm and a length of up to 28.0 nm,had a preferential [001] growth direction and displayed a quantum confinement effect. We also proposed a possible forma-tion mechanism for the CdS nanocrystals based on the experimental results.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.