Theoretical Design of a Three-Layered Structure Based on Left Handed Material for Absorption Enhancement in Solar Cells

Abstract

Background: A three-layered structure for solar cell model is designed. We consider a LHM film bounded by a glass superstrate and silicon/or silicon nitride substrate. Objective: The aim of this paper is to study transmittance, reflectance and absorptance in a three-layers structure composed of a glass superstrate and LHM middle layer; and as a substrate, we will be using silicon which is one of the widely used materials to enhance light absorption in multilayer structures. We will also be alternating between silicon and silicon nitride substrates to show their influence on the optical parameters. Method: Our analysis is based on the transfer matrix approach, which is a very powerful algorithm for optical parameters calculation in multilayer structures. The transmittance, reflectance and absorptance are formulated at some specific incidence angles, computed numerically as functions of the incident frequency and finally …