A binary 2D perovskite passivation for efficient and stable perovskite/silicon tandem solar cells.

ABSTRACT: To achieve high power conversion efficiency in perovskite/silicon tandem solar cells, it is necessary to develop a promising wide-bandgap perovskite absorber and processing techniques in relevance. To date, the performance of devices based on wide-bandgap perovskite is still limited mainly by carrier recombination at their electron extraction interface. Here, we demonstrate assembling a binary two-dimensional perovskite by both alternating-cation-interlayer phase and Ruddlesden-Popper phase to passivate perovskite/C₆₀ interface. The binary two-dimensional strategy takes effects not only at the interface but also in the bulk, which enables efficient charge transport in a wide-bandgap perovskite solar cell with a stabilized efficiency of 20.79% (1 cm²). Based on this ab

SUBMITTER: Pei F 

PROVIDER: S-EPMC11327242 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature