Synthesis of size tuneable cadmium sulphide nanoparticles from a single source precursor using ammonia as the solvent

Wei Min Zhang, Zhong Xi Sun, Wei Hao, Da Wei Su, David J. Vaughan

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Size tuneable cadmium sulphide nanoparticles of a few nanometres in size were prepared by thermolysis of a single source precursor of cadmium xanthates with variable carbon chain length (Cd(ROCS2)2, where R denotes -C2H5, -C4H9, -C 8H17 and -C12H25, respectively) in an ammonia solution. The particle size, morphology and crystallinity of these nanoparticles were characterized using X-ray powder diffractometry, transmission electron microscopy, and nitrogen adsorption/desorption techniques. The results show that hexagonal CdS nanoparticles can be produced by thermolysis of cadmium alkyl xanthate in an ammonia solution at a temperature as low as 100 °C. The size of CdS particles (between 5.60 nm and 3.71 nm) decreases with increasing length of carbon chain in the precursor, as further confirmed by UV-visible and fluorescence spectrophotometric measurements. The size tuning mechanism of CdS from cadmium alkyl xanthate is also discussed. © 2011 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    Pages (from-to)2266-2270
    Number of pages4
    JournalMaterials Research Bulletin
    Volume46
    Issue number12
    DOIs
    Publication statusPublished - Dec 2011

    Keywords

    • A. Inorganic compound
    • A. Optical materials
    • A. Semiconductors
    • B. Chemical synthesis
    • D. Optical properties

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