Tensile strain regulation via grain boundary buffering for flexible perovskite solar cells.

ABSTRACT: Flexible perovskite solar cells show promise in photovoltaics due to their high energy-to-power efficiency and adaptability, making them a top choice for third-generation thin-film solar applications. However, the inherent defect and mechanical fragility of polycrystalline films posed a challenge that limited their photovoltaic and mechanical performance. Here, the nanomechanical properties of perovskite films are regulated to varying degrees by introducing metal chelates. Specifically, the metal chelates are embedded into the grain boundaries of perovskite, thereby creating a uniformly distributed tensile strain field. Through nanomechanical investigations of the tensile strain-induced modifications in the microstructure and photovoltaic performance of perovskite films, the flexible perov

SUBMITTER: Xu Z 

PROVIDER: S-EPMC12789107 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature