Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface
In the present study, the optical absorption of a semiconductor surface covered with metallic spheroidal nanoparticles is considered theoretically. The theoretical approach used for calculation of light absorption in such structures is based on the concept of effective susceptibility and made in the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-03-01
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| Series: | Results in Physics |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379718331954 |
| _version_ | 1811234922554195968 |
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| author | V.Z. Lozovski C. Lienau G.G. Tarasov T.A. Vasyliev Z.Ya. Zhuchenko |
| author_facet | V.Z. Lozovski C. Lienau G.G. Tarasov T.A. Vasyliev Z.Ya. Zhuchenko |
| author_sort | V.Z. Lozovski |
| collection | DOAJ |
| description | In the present study, the optical absorption of a semiconductor surface covered with metallic spheroidal nanoparticles is considered theoretically. The theoretical approach used for calculation of light absorption in such structures is based on the concept of effective susceptibility and made in the frame of Green’s functions theory. The effective susceptibility is taken in an analytical form. The absorption spectra were calculated for coverages with nanoparticles having different shapes and surface densities at different angles of external light incidence. The obtained results predict strong configurational resonances in the spectral range where the absorption is maximum, i.e. resonant enhancement of absorption by nanoparticles of certain shape and surface density. The developed technique of calculation can be further applied to calculation of various effects caused by the excitation of surface plasmons in metallic nanoparticles under applied external fields yielding a wide range of applications of such structures in many fields, such as biomedicine, solar energy, environment protection, and information storage technology. Keywords: Semiconductor surface, Metal nanoparticles, Configurational resonance, Absorption spectrum, Effective susceptibility |
| first_indexed | 2024-04-12T11:44:08Z |
| format | Article |
| id | doaj.art-9812fd523a8a426faf179c2f1b27a5d9 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-12T11:44:08Z |
| publishDate | 2019-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-9812fd523a8a426faf179c2f1b27a5d92022-12-22T03:34:26ZengElsevierResults in Physics2211-37972019-03-011211971201Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surfaceV.Z. Lozovski0C. Lienau1G.G. Tarasov2T.A. Vasyliev3Z.Ya. Zhuchenko4Taras Shevchenko National University of Kyiv, Volodymyrska, 60, Kyiv 01033, UkraineInstitut für Physik Fk. V Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstraße 114-118, D-26129 Oldenburg, GermanyV.E. Lashkaryov Institute of Semiconductor Physics, National Acad. of Sci. of Ukraine, Prospect Nauki 45, Kyiv 03028, UkraineTaras Shevchenko National University of Kyiv, Volodymyrska, 60, Kyiv 01033, Ukraine; Corresponding author.V.E. Lashkaryov Institute of Semiconductor Physics, National Acad. of Sci. of Ukraine, Prospect Nauki 45, Kyiv 03028, UkraineIn the present study, the optical absorption of a semiconductor surface covered with metallic spheroidal nanoparticles is considered theoretically. The theoretical approach used for calculation of light absorption in such structures is based on the concept of effective susceptibility and made in the frame of Green’s functions theory. The effective susceptibility is taken in an analytical form. The absorption spectra were calculated for coverages with nanoparticles having different shapes and surface densities at different angles of external light incidence. The obtained results predict strong configurational resonances in the spectral range where the absorption is maximum, i.e. resonant enhancement of absorption by nanoparticles of certain shape and surface density. The developed technique of calculation can be further applied to calculation of various effects caused by the excitation of surface plasmons in metallic nanoparticles under applied external fields yielding a wide range of applications of such structures in many fields, such as biomedicine, solar energy, environment protection, and information storage technology. Keywords: Semiconductor surface, Metal nanoparticles, Configurational resonance, Absorption spectrum, Effective susceptibilityhttp://www.sciencedirect.com/science/article/pii/S2211379718331954 |
| spellingShingle | V.Z. Lozovski C. Lienau G.G. Tarasov T.A. Vasyliev Z.Ya. Zhuchenko Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface Results in Physics |
| title | Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface |
| title_full | Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface |
| title_fullStr | Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface |
| title_full_unstemmed | Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface |
| title_short | Configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface |
| title_sort | configurational resonances in absorption of metal nanoparticles seeded onto a semiconductor surface |
| url | http://www.sciencedirect.com/science/article/pii/S2211379718331954 |
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