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Title: Influence of particle size on optical scattering properties of silver nanoparticles

Authors: Ayoub Lamsiah; El Houssine Atmani; Jaafar Meziane; Nejma Fazouan; Maria Oumouloud

Addresses: Laboratory of Nanostructures and Advanced Materials, Mechanics and Thermofluids, FST Mohammedia, Hassan II University of Casablanca, Morocco; Laboratory of Materials, Energy and System Control, FST Mohammedia, Hassan II University of Casablanca, Morocco ' Laboratory of Nanostructures and Advanced Materials, Mechanics and Thermofluids, FST Mohammedia, Hassan II University of Casablanca, Morocco; Laboratory of Materials, Energy and System Control, FST Mohammedia, Hassan II University of Casablanca, Morocco ' Laboratory of Nanostructures and Advanced Materials, Mechanics and Thermofluids, FST Mohammedia, Hassan II University of Casablanca, Morocco; Laboratory of Materials, Energy and System Control, FST Mohammedia, Hassan II University of Casablanca, Morocco ' Laboratory of Nanostructures and Advanced Materials, Mechanics and Thermofluids, FST Mohammedia, Hassan II University of Casablanca, Morocco; Laboratory of Materials, Energy and System Control, FST Mohammedia, Hassan II University of Casablanca, Morocco ' Laboratory of Nanostructures and Advanced Materials, Mechanics and Thermofluids, FST Mohammedia, Hassan II University of Casablanca, Morocco; Laboratory of Materials, Energy and System Control, FST Mohammedia, Hassan II University of Casablanca, Morocco

Abstract: Nanometric metallic particles have attracted considerable attention due to their wide-ranging applications in healthcare, renewable energy, and other advanced technologies, stemming from their distinctive physical and chemical properties. These nanoparticles can enhance the efficiency of solar cells and act as biological markers in cancer diagnostics and therapy. The light-scattering behaviour of metallic nanoparticles is highly dependent on parameters such as particle size, composition, shape, and the surrounding medium. In this work, we examine how the size of silver nanoparticles influences light-scattering phenomena. Using the Lorentz-Drude model, we compute the absorption, scattering, and extinction cross-sections. By analysing optical efficiency across different incident light wavelengths, we interpret the computational outcomes and discuss their physical significance.

Keywords: silver nanoparticles size; light scattering; scattering cross section; Lorentz-Drude model; optical efficiency.

DOI: 10.1504/IJNP.2026.151259

International Journal of Nanoparticles, 2026 Vol.15 No.5, pp.1 - 17

Received: 30 Dec 2024
Accepted: 24 Oct 2025
Published online: 19 Jan 2026 *