Computer simulation of surface barrier solar cells with microrelief interface

Abstract

An original numerical simulator was developed, which provides a 1D self-consistent solution for Poisson's equation and continuity equations for electrons and holes. This simulator uses the boundary conditions at the interface taking into account the surface (interface) recombination, the above-barrier transport of major carriers and Schockley-Read recombination in the space charge region. For calculation of electron-hole pairs generation rate the special spectral dependence of the reflection coefficient of light was used, that is characteristic for microrelief interface of metal-semiconductor structure. The morphology and statistical geometric properties of interface were investigated by atomic force microscopy (AFM).