ArticleProceedings of the National Academy of Sciences of the United States of America2024
Topological polarons in halide perovskites.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Symmetry-protected topological polarons.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Silver-bismuth perovskite-inspired materials: chemistry, optoelectronic properties, and emerging applications in photovoltaics and beyond.Journal of materials chemistry. A · 2026Review
- Direct, Indirect, and Self-Trapped Excitons in CsThe journal of physical chemistry letters · 2024Article
- Topological polarons in halide perovskites.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
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Abstract
Halide perovskites emerged as a revolutionary family of high-quality semiconductors for solar energy harvesting and energy-efficient lighting. There is mounting evidence that the exceptional optoelectronic properties of these materials could stem from unconventional electron-phonon couplings, and it has been suggested that the formation of polarons and self-trapped excitons could be key to understanding such properties. By performing first-principles simulations across the length scales, here we show that halide perovskites harbor a uniquely rich variety of polaronic species, including small polarons, large polarons, and charge density waves, and we explain a variety of experimental observations. We find that these emergent quasiparticles support topologically nontrivial phonon fields with quantized topological charge, making them nonmagnetic analog of the helical Bloch points found in magnetic skyrmion lattices.
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