Title : ( Sonochemical synthesis and measurement of optical properties of zinc sulfide quantum dots )
Authors: Elaheh Kafshdare Goharshadi , Sayyed Hashem Sajjadi , roya mehrkhah , Paul Nancarrow ,
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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.
Keywords
Zinc sulfide nanoparticles Ionic liquid Sonochemical method Optical properties Band gap
@article{paperid:1029255,
author = {Kafshdare Goharshadi, Elaheh and Sajjadi, Sayyed Hashem and Mehrkhah, Roya and Paul Nancarrow},
title = {Sonochemical synthesis and measurement of optical properties of zinc sulfide quantum dots},
journal = {Chemical Engineering Journal},
year = {2012},
volume = {209},
number = {9},
month = {August},
issn = {1385-8947},
pages = {113--117},
numpages = {4},
keywords = {Zinc sulfide nanoparticles
Ionic liquid
Sonochemical method
Optical properties
Band gap},
}
%0 Journal Article
%T Sonochemical synthesis and measurement of optical properties of zinc sulfide quantum dots
%A Kafshdare Goharshadi, Elaheh
%A Sajjadi, Sayyed Hashem
%A Mehrkhah, Roya
%A Paul Nancarrow
%J Chemical Engineering Journal
%@ 1385-8947
%D 2012
