Journal
NATURE MATERIALS
Volume 21, Issue 7, Pages 761-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41563-022-01276-4
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Funding
- Office of Naval Research [N00014-21-1-2099]
- National Science Foundation [DMR2143041, OIA-2044049]
- Gordon and Betty Moore Foundation [5722]
- Ernest S. Kuh Endowed Chair Professorship
- Canada Research Chairs programme
- Army Research Office [W911NF1810149]
- US Department of Energy, Office of Science, Basic Energy Science, Chemical Sciences, Geosciences, and Biosciences Division
- US Department of Energy, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- U.S. Department of Defense (DOD) [W911NF1810149] Funding Source: U.S. Department of Defense (DOD)
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A room-temperature perovskite-based polaritonic platform with a lattice size of up to 10 x 10 has been successfully demonstrated, establishing perovskites as a promising platform for room temperature polaritonic physics.
Exciton polaritons, the part-light and part-matter quasiparticles in semiconductor optical cavities, are promising for exploring Bose-Einstein condensation, non-equilibrium many-body physics and analogue simulation at elevated temperatures. However, a room-temperature polaritonic platform on par with the GaAs quantum wells grown by molecular beam epitaxy at low temperatures remains elusive. The operation of such a platform calls for long-lifetime, strongly interacting excitons in a stringent material system with large yet nanoscale-thin geometry and homogeneous properties. Here, we address this challenge by adopting a method based on the solution synthesis of excitonic halide perovskites grown under nanoconfinement. Such nanoconfinement growth facilitates the synthesis of smooth and homogeneous single-crystalline large crystals enabling the demonstration of XY Hamiltonian lattices with sizes up to 10 x 10. With this demonstration, we further establish perovskites as a promising platform for room temperature polaritonic physics and pave the way for the realization of robust mode-disorder-free polaritonic devices at room temperature. The realization of large-scale exciton-polariton platforms operating at room temperature and exhibiting long-lived, strongly interacting excitons has been elusive. Here, the authors demonstrate a room-temperature perovskite-based polaritonic platform with a polariton lattice size of up to 10 x 10.
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