几何设计对球硅太阳电池性能影响的有限元仿真

Finite Element Analysis on The Influence of Geometric Design of Spherical Silicon Solar Cells

摘要:

基于COMSOL软件的光学模块和半导体模块,从球缺比例、直径、正电极接触面积三个几何设计方面对球硅电池进行了仿真分析；通过对比反向饱和电流密度和理想因子,发现球硅半径越小、球缺比例越小、正电极相对接触面积越大,电池的电学特性越好；分析了不同直径球硅电池的几何特征与其光电参数之间的关联性,发现其与传统平面硅太阳电池存在显著差异。研究结果可为制作高效率低成本柔性球硅太阳电池提供理论指导。

Abstract:

Based on the optical and semiconductor modules of COMSOL software, the geometric design of spherical silicon solar cell was simulated from the three parts of diameter, spherical defects and anode area. By comparing the reverse saturation current density and the ideal factor, it is found that the smaller the radius of the spherical silicon, the smaller ball defect ratio, the larger the relative contact area of the positive electrode, and the better the electrical properties. The correlation between the geometrical characteristics and photoelectric parameters of the spherical silicon solar cells with different diameters was analyzed, and it was found that there were significant differences between the cells and the conventional planar silicon solar cells.