Understanding and Mitigating Perovskite Morphology-Induced Performance Degradation in Industrial-Textured Perovskite/Silicon Tandem Solar Cells
Abstract
Perovskite/silicon tandem solar cells (PSTSCs) suffer from nonconformal perovskite coverage on industrial-grade micron-textured silicon, leading to efficiency and stability degradation. This study combines photoelectrical simulations and experiments to elucidate the degradation mechanisms and develop mitigation strategies. It reveals that conformal deposition improves optical response and reduces electrical losses. Beyond perovskite morphology regulation, increasing the perovskite subcell current can further alleviate performance degradation. To validate simulation results, we fabricate PSTSCs with varying perovskite morphologies and thicknesses, achieving precise current matching and enhanced performance. Notably, the optimized PSTSCs, featuring thick and conformal perovskites, achieve an efficiency beyond 32% (∼1 cm 2 ) with hysteresis (
Fields of Study & Subjects
Perovskite Materials and Applications
Silicon and Solar Cell Technologies
solar cell performance optimization
Publication details
- Journal / source
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Volume
- 18
- Issue
- 2
- Pages
- 3820–3831
- Publication date
- 7 January 2026
- Language
- EN