Description

M.S. Thesis in Optics and Laser Physics

An Investigation Of Scattering And Absorptions Cross Sections Of Solar Cells Using Ag Nanoparticles

Abstract

Improvement of solar cell efficiency is one of the subjects that has attracted a lot of attention in recent years. Plasmonic solar cells, which are being developed lately, are a new generation of solar cells that can be used as better alternatives for low efficient industrial solar cells. In this dissertation, by using Mie theory, the effect of Ag nanoparticles on scattering and absorption cross sections of solar cells were investigated. The scattering and absorption spectra vary by variation of nanoparticle size. Therefore, by choosing an appropriate size, we can increase the scattering at a specific wavelength. Thus, light can travel several times into the cell and increases absorption. For media studied in this work, by increasing the size of nanoparticles, scattering and absorption spectra shift toward higher wavelengths and become wider. New peaks also appear due to excitation of higher plasmonic modes.

Keywords: Scattering, Nanoparticle, Plasmonic, Solar cell.

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