Sonochemical synthesis and measurement of optical properties of zinc sulfide quantum dots

Elaheh K. Goharshadi, Sayyed Hashem Sajjadi, Roya Mehrkhah, Paul Nancarrow

    Research output: Contribution to journalArticle

    40 Citations (Scopus)
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    Abstract

    A facile sonochemical method has been developed to prepare very small zinc sulfide nanoparticles (ZnS NPs) of extremely small size about 1. nm in diameter using a set of ionic liquids based on the bis (trifluoromethylsulfonyl) imide anion and different cations of 1-alkyl-3-methyl-imidazolium. The structural features and optical properties of the NPs were determined in depth with X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), Fourier transform infrared (FTIR) spectroscopy, dynamic light scattering (DLS) analysis, and UV-vis absorption spectroscopy. The energy band gap measurements of ZnS NPs were calculated by UV-vis absorption spectroscopy. One of the interesting features of the present work is that the wide band gap semiconductor ZnS nanocrystals were prepared which are used in the fabrication of photonic devices.
    Original languageEnglish
    Pages (from-to)113-117
    Number of pages5
    JournalChemical Engineering Journal
    Volume209
    Early online date06 Aug 2012
    DOIs
    Publication statusPublished - 15 Oct 2012

    ASJC Scopus subject areas

    • Environmental Chemistry
    • Industrial and Manufacturing Engineering
    • Chemistry(all)
    • Chemical Engineering(all)

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