Optimization of Technological Qualities of Photovoltaic Cells Based on Absorber Metamaterial (SRRs) Resonators

Abstract

Conversion of solar light into silicon photovoltaic cells into electrical energy create significant efficiency losses; physical and technological. Studies on the physical characteristics of photovoltaic cell materials show that technological losses such as considerable reflection and modest absorption efficiency can be minimized. In this work, we propose a new structure that is based on a planar metamaterial waveguide; this guide can contribute to the optimization of the performance of photovoltaic silicon cells. Our proposed structure is a novel approach to anti-reflective coating devices used to achieve high absorption in silicon solar cells. The planar guide; deposited on the silicon layer consists of a network of metamaterial Split Ring Resonators (SRRs) which have a magnetic resonance due to a negative permeability (). The incidence of electromagnetic waves on our structure is made according to the electric transverse modes (TE) for various inclination values (). The geometrical shape of the (SRRs) and the substrate on which they are engraved are chosen to have maximum absorption, whereas the reflection, transmission and absorption coefficients will be represented as a function of the associated wavelength for different values of the incidence. To simulate our structure which is quite complicated, we will use Ansoft HFSS commercial software.