ArticleScience advances2025
Exciton polariton condensation in a perovskite moiré flat band at room temperature.
Article in Science advances, 2025. 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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Who cites it
4 citing papers in PubMed.
- Strong interlayer coupling and chiral flat-band cascades in twisted bilayer gratings.Science advances · 2026Article
- Wave morphing towards the flat-top envelope in photonics systems driven by artificial gauge fields.Nature communications · 2026Article
- Direction-resolved nanoscale optical imaging with near-nanometer resolution by emerging infrared torsional force microscopy.Nature communications · 2026Article
- Topological exciton-polaritons with negative coupling.Nature communications · 2025Article
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Authors and funding
13 authors.
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Abstract
Moiré superlattices exhibit fascinating moiré flat bands when two layers of van der Waals materials are twisted at specific magic angles, providing unparalleled opportunities to explore unconventional correlated quantum phenomena. Exciton polaritons, hybrid quasiparticles of excitons and photons, have emerged as promising synthetic platforms for exploring moiré physics beyond conventional systems. However, the realization of moiré exciton-polariton flat bands and their condensation remains challenging. Here, we experimentally demonstrate a moiré exciton-polariton flat band with condensation in a perovskite moiré superlattice at room temperature. By engineering a 21.79° magic-angle moiré superlattice potential with enhanced interlayer coupling, we experimentally observe a polaritonic moiré flat band near the corresponding monolayer's Dirac points position in the perovskite microcavity. Under a nonresonant pulsed excitation, polaritons with proper detuning condense into the moiré flat band at room temperature. Our work provides a unique platform for investigating exotic moiré phenomena and unlocks promising avenues toward advanced polaritonic devices.
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