Abstract
Characterization of nanocomposites prepared by Ag ion implantation into polymethylmethacrylate (PMMA) at different doses (2.5 × 1016, 1.0 × 1017, and 1.5 × 1017 Ag+/cm2) with a constant energy of 30 keV and a current density of 1 μA/cm2 in order to prepare Ag nanoparticles (NPs) was performed by UV-Vis spectroscopy. For the first time an absorption band at a wavelength of 355 nm for the highest dose sample was observed experimentally. Changes of size and filling factor of Ag NPs in the near-surface region of ion-implanted polymers are suggested to explain this result. However, further verification is needed with more informative technique such as, for example, slow positron beam spectroscopy to probe near-surface nanometer size depth profiles.
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Acknowledgments
T.S. Kavetskyy and M.M. Kravtsiv acknowledge the Ministry of Education and Science of Ukraine (projects Nos. 0116U004737, 0117U007142 (for Young Scientists) and 0117U007143).
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Kavetskyy, T.S., Kravtsiv, M.M., Telbiz, G.M., Nuzhdin, V.I., Valeev, V.F., Stepanov, A.L. (2018). Surface Plasmon Resonance Band of Ion-Synthesized Ag Nanoparticles in High Dose Ag:PMMA Nanocomposite Films. In: Petkov, P., Tsiulyanu, D., Popov, C., Kulisch, W. (eds) Advanced Nanotechnologies for Detection and Defence against CBRN Agents. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-94-024-1298-7_5
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DOI: https://doi.org/10.1007/978-94-024-1298-7_5
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