Room-Temperature Cavity Exciton-Polariton Condensation in Perovskite Quantum Dots
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Abstract The exploitation of the strong light-matter coupling regime and exciton-polariton condensates has emerged as a compelling approach to introduce strong interactions and nonlinearities into numerous photonic applications. The use of colloidal semiconductor quantum dots with strong three-dimensional confinement as the active material in optical microcavities would be highly advantageous due to their versatile structural and compositional tunability and wet-chemical processability, as well as potentially enhanced, confinement-induced polaritonic interactions. Yet, to date, exciton-polariton condensation in a microcavity has neither been achieved with epitaxial nor with colloidal quantum dots. Here, we demonstrate room-temperature polariton condensation in a thin film of monodisperse, colloidal CsPbBr 3 quantum dots, placed in a tunable optical resonator with a Gaussian-shaped deformation serving as wavelength-scale potential well for polaritons. The onset of polariton condensation under pulsed optical excitation is manifested in emission by its characteristic superlinear intensity dependence, reduced linewidth, blueshift, and extended temporal coherence.
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Bose-Einstein condensation and polariton lasing are possible in microcavities, even at room temperature.
“The possibilities of achieving Bose-Einstein condensation (BEC) [264-267] and polariton lasing [137,268-270], even at room temperature, are some of the current topics in the field of microcavity research.”
From Metal Oxide Thin Films for Advanced Photonic Applications (2026) · cites this paper as [264]
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- [69]Georgakilas, I. Data corresponding to the publication ‘Room-temperature cavity exciton-polariton condensation in perovskite quantum dots’. Zenodo 10.5281/zenodo.15367737 (2025). PMC12141476 40473662 · DOI
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Metal Oxide Thin Films for Advanced Photonic Applications
Stîngescu, M.-L., Șopronyi, M.-A., Antohe, Ș., & Scărișoreanu, N.-D. (2026) · Crystals · doi:10.3390/cryst16030164 · Cited by 2 · see citing works
“The possibilities of achieving Bose–Einstein condensation (BEC) [264–267] and polariton lasing [137,268–270], even at room temperature, are some of the current topics in the field of microcavity research.”
- Authors
- Georgakilas, I., Tiede, D., Urbonas, D., Mirek, R., Bujalance, C., Caliò, L., Oddi, V., Tao, R., Dirin, D. N., Rainò, G., Boehme, S. C., Galisteo-López, J. F., Mahrt, R. F., Kovalenko, M. V., Miguez, H., & Stöferle, T.
- Affiliations
- ETH Zurich (CH)
- Consejo Superior de Investigaciones Científicas (ES)
- IBM Research - Zurich (CH)
- Corresponding author
- Kovalenko, Maksym V.
- Stöferle, Thilo
- ORCID
- Venue
- Nature Communications
- Published
- 2025-06-05
- Volume
- 16
- Issue
- 1
- Pages
- 5228-5228
- ISSN
- 2041-1723 (ISSN-L)
- PMC
- PMC12141476
- OpenAlex
- W4411061110
- Cited by
- 21
- References
- 71
- Citations by year
- 2026: 14 · 2025: 7
- FWCI
- 7.63
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Nature Communications (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion, cc-by-nc-nd)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by)
- DORA Empa (Swiss Federal Laboratories for Materials Science and Technology (Empa)) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Figshare (submittedVersion, cc-by)
- arXiv (Cornell University)
- Funders
- National Science Foundation
- European Commission (964770, 899141, 956071, 956270)
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (11033, 192308)
- Ministerio de Ciencia e Innovación (MCIN/AEI/10, .13039/501100011033, 10.13039, / AEI/10, MCIN/AEI/10.13039/501100011033,, 13039, 10.13039/501100011033/, 501100011033, PID2020, PID2020-116593RB-I00, MCIN /AEI /10.13039, /AEI/10.13039/ 501100011033)
- Junta de Andalucía (MCIN / AEI / 10.13039/501100011033, P18-RT-2291)
- Horizon 2020 Framework Programme (899141, 964770, 956270, 956071, 13039/501100011033, MCIN / AEI /10.13039/5011000-11033)
- Agencia Estatal de Investigación (AEI//10.13039/501100011033/, 501100011033, 10.13039/501100011033, MCIN/AEI/10.13039/501 100 011 033, 13039, .13039/501100011033, MCIN / AEI/10, PID2023, 10.13039, PID2020-116593RB-I00, H2020, AEI/10)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
- Keywords
- exciton-polariton condensation, perovskite quantum dots, CsPbBr3, colloidal quantum dots, optical microcavities, strong light-matter coupling, tunable optical resonators, temporal coherence
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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