Abstract
Localized surface plasmons (LSPs) are a potentially valuable property for the practical use of small size metallic particles. Exploiting the LSPs in metallic nanoparticle (NP)-based solar cells was shown to increase the efficiency of solar panels. A large extinction cross section of NPs allows for high scattering of light at the surface of the panel, which reduces the panel thickness, allowing for small size and low-cost solar cells. In this paper, the extinction cross-section of spherical nanoparticles is studied and simulated numerically. Surface plasmons were first modeled using the Drude’s model then the scattering and absorption cross-sections were derived. Commercial3D simulation software was used to model the near field distribution of the three NP structures. A spherical nanoparticle made of silver was modeled first and the field distribution inside the sphere was presented. The extinction cross-section was also calculated. Two other structures were also presented; a silica NP was first coated with silver shell then a silver NP was coated with silica shell. These structures were studied to estimate the effects of the surroundings on the extinction cross-section. The results show that the silica NP coated with a silver shell provides a high extinction cross-section and can be considered as a good choice for the LSPs-based solar cells.
Highlights
Localized surface plasmons (LSPs) فزية يهفخ مقط ًعا كبيًاخ للانق اخض ويسكن اعتباره اختياًار جيًجا لمخلايا الذسدية السعتسجة عمىSolar cells are a solution to the increased demand for environmentally friendly energy sources [1].Solar cells are devices that use the photovoltaic effect to convert sunlight photon energy into electricity
The aim of these calculations is to optimize the NP structure in order to obtain the highest extinction cross-section, which leads to improved characteristics for solar cells
Surface plasmons are of great interest in many fields of technology, ranging from solar cells to optical biosensing
Summary
LSPs فزية يهفخ مقط ًعا كبيًاخ للانق اخض ويسكن اعتباره اختياًار جيًجا لمخلايا الذسدية السعتسجة عمىSolar cells are a solution to the increased demand for environmentally friendly energy sources [1].Solar cells are devices that use the photovoltaic effect to convert sunlight photon energy into electricity. Surface plasmon polaritons (SPPs) are bound electromagnetic excitations existing at the dielectric-metal interface; resonance coupling between SPPs and light results in enhanced near-field waves. Surface plasmon resonance occurs when an electromagnetic field at light frequencies illuminates nanoparticles.
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