The generation of the photovoltaic has intensified over the last decade, moving from the most basic applications based on elementary devices to one of the most important applications of energy. Photonic Crystals (Ph.Cs) are very promising systems for applications in the field of electromagnetic waves and for real achievements in microwaves field. This particular property of the Ph.Cs offers the possibility of the control of light propagation in an increased way, and thus makes possible to consider many applications in nanotechnology and photovoltaic field. The a:Si-H is a very attractive material for simulation and experimental applications, when deposited in thin layers, it has an efficient refractive index. The Plane Wave Expansion (PWE) method was used to assess the band gap of the structure, the Rigorous Coupled-Wave Analysis (RCWA) method integrated in RSoft CAD Software was used to calculate the optical properties, integrates with thin film structure of the solar cell with Ph.Cs. The one-dimensional optical properties of photonic crystal with the absorbent layer of photovoltaic cell on both hydrogenated amorphous silicon (a:Si-H) and silicon (Si) are studied in this paper in order to enhance the yield of the absorption of light on a solar cell with an efficiency geometrical parameters.
The IV semiconductor materials have a pivotal role in photovoltaic (PV) systems. Research on the optimal grating structure has attracted a lot of interest because of its potential application in light-trapping in thin film PV cells. The Photonic Crystals (PCs) with their nano-engineered feature which allowed them to obtain high efficiency solar cells in particular from a parametric aspect. By using the Rigorous Coupled Wave Analysis (RCWA) method by RSoft CAD software, a Gallium arsenide (GaAs) thin film is studied with a simple trapezoidal grating of PCs to improve optical absorption with height, width and the mixed ultra-precision grating variations taking into account the J-V solar cell characteristics. According to our simulation results and compared to the planar grating, an enhancement in the power conversion efficiency (η) of 53.72% with a one dimensional PCs grating, and a 115.36% improvement with a simple trapezoidal grating. Furthermore, by mixing the ultra-precision values of the gratings we have an enhancement of 147.25% in height variation and 151.04% in width variation, with a noticeable improvement in the width effect compared to the height that reached up to 58.22%.
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