Thermally Stable Anthracene-Based 2D/3D Heterostructures for Perovskite Solar Cells.

ABSTRACT: Bulky organic cations are used in perovskite solar cells as a protective barrier against moisture, oxygen, and ion diffusion. However, bulky cations can introduce thermal instabilities by reacting with the near-surface of the 3D perovskite forming low-dimensional phases, including 2D perovskites, and by diffusing away from the surface into the film. This study explores the thermal stability of Cs_0.09FA_0.91PbI₃ 3D perovskite surfaces treated with two anthracene salts─anthracen-1-ylmethylammonium iodide (AMAI) and 2-(anthracen-1-yl)ethylammonium iodide (AEAI)─and compares them with the widely used phenethylammonium iodide (PEAI). The steric hindrance of AMAI limits the interaction of its NH₃⁺ head with the perovskite lattice, relative to

SUBMITTER: Bairley K 

PROVIDER: S-EPMC11783487 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature