Impact of Simulation Model and Grain Size on the Bifacial Gain of a Silicon Solar Cell

Abstract

The characterisation of the performance of a bifacial silicon cell in a simulation study is carried out through different simulation models. These are the one-dimensional (1D) model, the classical three-dimensional model using constant diffusion parameters and the empirical 3D model which uses diffusion parameters varying with grain size. For each of these models, by comparing the electrical parameters of the solar cell subjected to front side illumination and then to double illumination, the different bifacial gains are obtained and then compared to each other. This study revealed a tendency for the classical 1D and 3D models to overestimate the bifacial gains compared to the empirical 3D model.