Multilayer antireflection coatings design for SiO2‐passivated silicon solar cells

Abstract Both the passivation and good antireflection effect can improve the power conversion efficiency of the crystalline silicon solar cells. In this study, we simulated and optimized HfO 2 single‐layer, SiO 2 /SiC double‐layer, and MgF 2 /HfO 2 /SiC triple‐layer antireflection coatings and obtained the optimal optical parameters based on the optical transfer matrix. In addition, we analyzed the influence of HfO 2 , SiO 2 /SiC, and MgF 2 /HfO 2 /SiC antireflection coatings on the performance of the crystalline silicon solar cell. The results indicated that the HfO 2 , SiO 2 /SiC, and MgF 2 /HfO 2 /SiC antireflection coatings increased the power conversion efficiency of the crystalline silicon solar cell from 12.17 % to 17.13 %, 18.57 %, and 18.85 %, respectively. For cost‐saving, the SiO 2 /SiC double‐layer antireflection coating is a good choice for the crystalline silicon solar cell.