Improvement on electrical properties of screen-printed silicon solar cells by light-induced electroplating of silver

Abstract

The total power losses are analyzed based on two-layer electrode of light-induced electroplating after screen printing. By the introduction of scale factor in the calculation, optical losses are closer to the actual condition. Optimized two-layer contact of front side could diminish power losses distinctly and improve the current–voltage (I–V) characteristic of crystalline silicon solar cells. The relative increments of I–V parameters as a function of electroplating time are measured. The quantitative comparison of analytical results between half-ellipse shape model and half-circled shape model is performed. The numerical simulation results and experimental data show good agreement. Due to the successful verification, the simulation results could be used to optimize the two-layer electrode structure and light-induced electroplating process.