Design of Solar Cell Structure Based on Au Nanoparticles

Solar cells have rapidly attracted research and industry due to increasing demand of energy over worldwide. Solar cell is a device converting effectively and directly the sun light into electrical power. The main problem facing the design and manufacturing of solar cells is the relatively low efficient of absorption of solar light. The concept of solar cell is based on getting higher light transmission and lower light reflection through the solar cell structure. A composite four-layer solar cell structure containing SiN-Au nanoparticles and Si has been designed and investigated. The transmission, reflection and absorption of the incident light are derived by matrix method for different physical parameters of the structure and the numerical results are obtained by Maple program software. We found that Au-nanoparticles on the proposed anti-reflective (AR) structure has effectively enhanced the transmission and improved the light efficiency.