Spectral peculiarities of monolayers made of oxidized nanogranules of amorphous copper and their aggregates with high surface concentration
| Autor: | T. V. Ol’shanskaya, Victor A. Babenko, S. A. Gurevich, L. M. Bui, Denis A. Yavsin, A. Ya. Khairullina, Vladimir M. Kozhevin |
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| Rok vydání: | 2006 |
| Předmět: |
Acoustics and Ultrasonics
Analytical chemistry Oxide Nanoparticle chemistry.chemical_element Condensed Matter Physics Copper Surfaces Coatings and Films Electronic Optical and Magnetic Materials Amorphous solid chemistry.chemical_compound Transition metal chemistry Monolayer Absorption (chemistry) Surface plasmon resonance |
| Zdroj: | Journal of Physics D: Applied Physics. 39:1667-1673 |
| ISSN: | 1361-6463 0022-3727 |
| DOI: | 10.1088/0022-3727/39/8/028 |
| Popis: | We present results of a theoretical and experimental investigation into monolayers made of oxidized nanogranules of amorphous copper and their aggregates with a high surface concentration. We show theoretically that the packing density of the nanogranules, the size of aggregates, and the thickness and composition of the oxide layer over a Cu nanogranule affect the shift in the plasma resonance. Experimentally we established a non-monotone dependence of the absorption in the plasma resonance band and the UV spectral range with a high surface packing density of copper nanoparticles. The optical measurements indicated a non-uniform oxidation of the granules on the substrate. |
| Databáze: | OpenAIRE |
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