Controlling morphology and structure of nanocrystallineVcadmium sulfide (CdS) by tailoring solvothermal processing parameters

P. Dalvand, M. R. Mohammadi

    Research output: Contribution to journalArticlepeer-review

    21 Citations (Scopus)

    Abstract

    Cadmium sulfide (CdS) with different morphologies was successfully prepared by solvothermal process by controlling the processing parameters, including nature of precursor and solvent, reaction temperature and process time. X-ray diffraction patterns revealed that, in all cases highly pure and crystallized CdS with hexagonal structure were obtained. In addition, it was found that the processing parameters influence on preferable growth direction of CdS nanostructures. Field emission scanning electron microscope analysis showed that CdS nanowires with different aspect ratios were obtained (depending upon the reaction temperature and process time) in presence of sulfur powder and ethylenediamine, whereas CdS nanoparticles were produced by sulfur powder and ethanolamine. Moreover, CdS nanorods were prepared using thiourea and ethylenediamine. Transmission electron microscope image confirmed that CdS nanowire with one of the highest aspect ratio reported in the literature (i.e., 255) was achieved using sulfur powder and ethylenediamine at 200 °C reaction temperature for 72 h process time. UV-Vis absorption spectra of CdS nanostructures prepared under different conditions displayed a blue shift relative to that of bulk CdS due to the quantum size effect.

    Original languageEnglish
    Pages (from-to)3011-3018
    Number of pages8
    JournalJournal of Nanoparticle Research
    Volume13
    Issue number7
    DOIs
    Publication statusPublished - Jul 2011

    Keywords

    • CdS
    • Characterization
    • Processing parameters
    • Quantum effect
    • Solvothermal
    • Synthesis

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