Light scattering calculations from Au and Au/SiO2 core/shell nanoparticles |
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| Institution: | 1. Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy;2. MATIS CNR-IMM, via S. Sofia 64, 95123 Catania, Italy;3. Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e Microsistemi (CNR-IMM), VIII Strada 5, 95121 Catania, Italy;1. School of Mathematics & Physics, Mianyang Teachers’ College, Mianyang 621000, PR China;2. Department of Material Science, Sichuan University, Chengdu 610064, PR China;1. University of Florence, Department of Physics and Astronomy, via G. Sansone 1, I-50019 Sesto Fiorentino (Firenze), Italy;2. INFN Firenze, via B. Rossi 1, I-50019 Sesto Fiorentino (Firenze), Italy;3. University of Pavia, Dipartimento di Ingegneria Industriale e dell׳Informazione, Pavia, Italy;4. INFN Pavia, via A. Bassi 6, I-27100 Pavia, Italy;5. University of Catania, Department of Physics and Astronomy, via S. Sofia 64, I-95123 Catania, Italy;6. INFN Catania, via S. Sofia 64, I-95123 Catania, Italy;7. University of Messina, Department of Physics, sal. Sperone 31, I-98166 Messina, Italy;8. University of Siena, Department of Physical Sciences, Earth and Environment, I-53100 Siena, Italy;9. INFN Pisa, via F. Buonarroti 2, I-56127 Pisa, Italy;10. INFN Trieste, via Valerio 2, I-34127 Trieste, Italy;11. Institute for Polymer, Composites and Biomaterials (CNR), piazzale E. Fermi 1, I-80055 Portici (Napoli), Italy;12. IFAC (CNR), via Madonna del Piano 10, I-50019 Sesto Fiorentino (Firenze), Italy;13. University of Udine, Department of Chemistry, Physics and Environment, via delle Scienze 206, I-33100 Udine, Italy;14. University of Milano-Bicocca, Department of Materials Science, via Cozzi 55, I-20125 Milano, Italy;15. INFN Milano-Bicocca, Piazza della Scienza 3, Milano, Italy;p. University of L׳Aquila, Dipartimento di Scienze Fisiche e Chimiche, Polo Universitario di Coppito, Aquila, Italy;q. University of Trieste, Department of Physics, via Valerio 2, I-34127 Trieste, Italy;r. MATIS (CNR), via S. Sofia 64, I-95123 Catania, Italy;1. Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, I- 95125 Catania, Italy;2. Laboratori Nazionali del Sud, INFN-LNS, Via S. Sofia 62, I-95123 Catania, Italy;1. College of Physics, University of Chinese Academy of Sciences, Yuquanlu 19A, Beijing 100049, China;2. Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, I-95125 Catania, Italy;3. INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, I-95123 Catania, Italy;4. Theoretical Physics Center for Science Facilities, Institute of High Energy Physics, Beijing 100049, China;1. Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, I-95123 Catania;2. INFN-Laboratori Nazionali del Sud, Via S. Sofia 62, I-95123 Catania, Italy |
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| Abstract: | Given the importance of the optical properties of Au and Au/SiO2 core/shell nanoparticles, in this article we focus our attention on the light scattering properties of such systems and on a relative comparison. In particular, we report theoretical results of angle-dependent light scattering intensity and scattering efficiency for Au and Au/SiO2 core/shell nanoparticles increasing the Au particle radius from 30 to 130 nm, and for Au/SiO2 core/shell particles changing the core-to-shell sizes ratio. Finally, a comparison between the scattering efficiency of the Au and Au/SiO2 core/shell nanoparticles is drawn. The results of this work can be used in the design of tunable efficiency light scattering devices (biological and molecular sensors, solar cells). |
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