Photoluminescence and Stability of Dion-Jacobson Tin-Based Halide Perovskites with Different Spacer Cation Chain Length.

ABSTRACT: Two-dimensional tin halide perovskites are of significant interest for light emitting applications. Here, we investigate the effect of organic cation A on the stability of different Dion-Jacobson tin-based halide perovskites. The ASnBr₄ materials using diammonium cation A with shorter alkyl chains are found to exhibit improved stability, exhibiting dramatic stability difference between the most stable HDASnBr₄, where HDA denotes 1,6-hexanediammonium, and two materials with 8- and 10-carbon alkyl chain ammonium cations. The HDASnBr₄ powders were thermally stable at 100 °C in an argon environment but exhibited decreasing photoluminescence with time in ambient air at 100 °C. The sample degradation at 100 °C is accelerated compared to room temperature, but it p

SUBMITTER: Ali MU 

PROVIDER: S-EPMC11820731 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature