Ultrastable and efficient slight-interlayer-displacement 2D Dion-Jacobson perovskite solar cells.

ABSTRACT: Stability has been a long-standing concern for solution-processed perovskite photovoltaics and their practical applications. However, stable perovskite materials for photovoltaic remain insufficient to date. Here we demonstrate a series of ultrastable Dion-Jacobson (DJ) perovskites (1,4-cyclohexanedimethanammonium)(methylammonium)_n-1Pb_nI_3n+1 (n ≥ 1) for photovoltaic applications. The scalable technology by blade-coated solar cells for the designed DJ perovskites (nominal n = 5) achieves a maximum stabilized power conversion efficiency (PCE) of 19.11% under an environmental atmosphere. Un-encapsulated cells by blade-coated technology retain 92% of their initial efficiencies for over 4000 hours under ~90% relative humidity (RH) aging conditions. More importan

SUBMITTER: Zhang W 

PROVIDER: S-EPMC11231157 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature