The performance of flexible all-perovskite tandem solar cells remains limited by interfacial losses in narrow-bandgap subcells. Here, authors incorporate Triton X-100 to disrupt the vertical phase segregation in PEDOT:PSS films, achieving maximum cell and mini-module efficiencies of 25.4% and 19.7%.
- Huagui Lai
- Jingwei Zhu
- Fan Fu
