Coating additive solutions onto wet perovskite films in situ enables flexible all-perovskite tandem solar cells with a certified power conversion efficiency of 23.0% for a module with an aperture area of 20.26 cm2. The modules maintain 97% of their initial efficiency after 10,000 bending cycles with a 10 mm radius.
- Manya Li
- Han Gao
- Hairen Tan