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MOHSEN ASADI ASADABAD
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Volume 40 Issue 1 February 2017 pp 37-43
Synthesis and optical characterization of copper nanoparticles prepared by laser ablation
SAMIRA MONIRI MAHMOOD GHORANNEVISS MOHAMMAD REZA HANTEHZADEH MOHSEN ASADI ASADABAD
The remarkable size-tunable properties of nanoparticles (NPs) make them a hot research topic with applications in a wide range of fields. Hence, copper (Cu) colloidal NPs were prepared using laser ablation (Nd:YAG, 1064 nm, 7 ns, 10 Hz, 6000 pulses) of a coppermetal plate at different laser fluences (LFs) in the range of 1–2.5 J cm$^{−2}$ in ethylene glycol (EG), at room temperature. Analysis of NPs was carried using different independent techniques such as ultraviolet–visible (UV–vis) spectroscopy; transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy. TEM analysis showed that the NPs were spherical with a bimodal distribution and an average particle size of 5 and 16nm influence of 1.2 J cm$^{−2}$, and 9 and 22 nm at 2 J cm$^{−2}$. The UV–vis spectra of colloidal NPs revealed the maximum absorbance at around 584 nm, indicating the formation of Cu NPs, which supported using FTIR spectra. Furthermore, the absorption spectra confirmed the metallic nature of Cu NPs. FTIR spectroscopy was utilized to verify information about the NPs surface state and chemical bonds constructed in the atom groups apparent on their surface.
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Bulletin of Materials Science
Volume 46, 2023
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