Halide Chemistry in Tin Perovskite Optoelectronics: Bottlenecks and Opportunities.

ABSTRACT: Tin halide perovskites (Sn HaPs) are the top lead-free choice for perovskite optoelectronics, but the oxidation of perovskite Sn²⁺ to Sn⁴⁺ remains a key challenge. However, the role of inconspicuous chemical processes remains underexplored. Specifically, the halide component in Sn HaPs (typically iodide) has been shown to play a key role in dictating device performance and stability due to its high reactivity. Here we describe the impact of native halide chemistry on Sn HaPs. Specifically, molecular halogen formation in Sn HaPs and its influence on degradation is reviewed, emphasising the benefits of iodide substitution for improving stability. Next, the ecological impact of halide products of Sn HaP degradation and its mitigation are considered. The development of vi

SUBMITTER: Lanzetta L 

PROVIDER: S-EPMC10107305 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature