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

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

doi:10.1016/j.cej.2012.07.131

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

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

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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 language	English
Pages (from-to)	113-117
Number of pages	5
Journal	Chemical Engineering Journal
Volume	209
Early online date	06 Aug 2012
DOIs	https://doi.org/10.1016/j.cej.2012.07.131
Publication status	Published - 15 Oct 2012

ASJC Scopus subject areas

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

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10.1016/j.cej.2012.07.131

Sonochemical synthesis and measurement of optical properties of zinc sulfide quantum dots
© 2012. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 1.33 MB

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Goharshadi, E. K., Sajjadi, S. H., Mehrkhah, R., & Nancarrow, P. (2012). Sonochemical synthesis and measurement of optical properties of zinc sulfide quantum dots. Chemical Engineering Journal, 209, 113-117. https://doi.org/10.1016/j.cej.2012.07.131

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