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Title of Journal: J Mater Sci Mater Electron

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Abbravation: Journal of Materials Science: Materials in Electronics

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Springer US

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DOI

10.1007/s00415-011-6302-8

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1573-482X

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In situ synthesis of CuS nanoparticle with a disti

Authors: Shujahadeen B Aziz Rebar T Abdulwahid Hazhar A Rsaul Hameed M Ahmed
Publish Date: 2016/01/08
Volume: 27, Issue: 5, Pages: 4163-4171
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Abstract

In this article we report the synthesis of CuS nanoparticle with distinguishable surface plasmonic resonance SPR peaks in near infrared region For this purpose in situ synthesis onestep fabrication has been used to prepare CuS nanoparticles in PMMA polymer matrix at room temperature The Xray diffraction spectrum confirms the formation of CuS nanoparticles The transmittance spectra of nanocomposite samples reveal that the samples have a good transparency The absorption spectra show a broad absorption peak in the wavelength region from 570 to 980 nm which is a characteristic SPR peak for CuS nanoparticle An increase of refractive index was observed for the samples containing CuS nanoparticles The linear relationship between the refractive index and volume fraction was observed The appearance of SPR peak in refractive index spectra was attributed to CuS nanoparticles Shifting of absorption edge to lower photon energy has been observed for nanocomposite samples The direct energy bandgap of nanocomposite samples are reduced compare to pure PMMA polymer The plot between the direct energy band gap and refractive index reveals that the decrease in bandgap energy is associated with the increase in index of refraction The increase of optical dielectric constant can be ascribed to the formation of CuS nanoparticles The low band gap of CuS nanoparticles in the present work reveals their importance for applications in optoelectronic devicesThe authors gratefully acknowledge the financial support from the Ministry of Higher Education and Scientific ResearchKurdistan Regional GovernmentIraq University of Sulaimani Faculty of Science and Science Education School of ScienceDepartment of Physics for this scientific research work

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