Room-Temperature Perovskite Phase Transition of CsPbI₃ for PV Manufacturing on Flexible Substrates.

ABSTRACT: Printing perovskite films typically involves a high-temperature treatment exceeding 150 °C, which limits the manufacturing of flexible devices. All inorganic CsPbI₃ perovskite is particularly promising for commercialization due to its high thermal stability. Herein, we discovered that when using DMF precursors containing CsI and HPbI₃ for fabricating CsPbI₃ films, an isopropanol (IPA) antisolvent bath immersion treatment of the wet films can enable a direct and rapid formation of optically active perovskite black phases at room temperature without annealing. In situ photoluminescence and in situ transmission techniques were employed to monitor and characterize the transition from the wet film to the final perovskite phase. It can be concluded that the relat

SUBMITTER: Liu Y 

PROVIDER: S-EPMC11865993 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature