Efficiency Enhancement of Silicon Solar cell with Metallic Nanoparticles

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Hashemi, Mehdi | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 48072 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Sadighi Bonabi, Rasoul
Abstract:
By using Mie theory and experimental data for complex refractive index of Au and Ag nanoparticles, the scattering and absorption efficiency of these nanoparticles in silicon medium (crystalline, Polycrystalline and amorphous silicon) was investigated. It was shown that Ag and Au nanoparticles can be used for confine the light, in desired wavelength band, inside the solar cell.The optimum nanoparticle size for using in this kind of solar cells was about 70-80 nm. In amorphous silicon confined photons cannot participate in electron-hole generation so the application of these metal nanoparticles in this kind of solar cells cannot be useful. Also the complex refractive index for equivalent medium (nanoparticle in silicon) which can be used for obtaining the optimum coverage of surface of solar cell was obtained
Keywords:
Nanoparticles ; Scattering ; Mie Scattering Theory ; Solar Cells ; Electron-hole Recombination