Phonon‐Bottleneck Enhanced Exciton Emission in 2D Perovskites
Abstract: Layered halide perovskites exhibit remarkable optoelectronic properties and technological promise, driven by strongly bound excitons. The interplay of spin‐orbit and exchange coupling creates a rich excitonic landscape, determining their optical signatures and exciton dynamics. Despite the dark excitonic ground state, surprisingly efficient emission from higher‐energy bright states has puzzled the scientific community, sparking debates on relaxation mechanisms. Combining low‐temperature magneto‐optical measurements with sophisticated many‐particle theory, the origin of the bright exciton emission in perovskites is elucidated by tracking the thermalization of dark and bright excitons under a magnetic field. The unexpectedly high emission is clearly attributed to a pronounced phonon‐bottleneck effect, considerably slowing down the relaxation toward the energetically lowest dark states. It is demonstrated that this bottleneck can be tuned by manipulating the bright‐dark energy splitting and optical phonon energies, offering valuable insights and strategies for controlling exciton emission in layered perovskite materials that is crucial for optoelectronics applications.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Phonon‐Bottleneck Enhanced Exciton Emission in 2D Perovskites ; day:15 ; month:03 ; year:2024 ; extent:7
Advanced energy materials ; (15.03.2024) (gesamt 7)
- Creator
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Thompson, Joshua J. P.
Dyksik, Mateusz
Peksa, Paulina
Posmyk, Katarzyna
Joki, Ambjörn
Perea‐Causin, Raul
Erhart, Paul
Baranowski, Michał
Loi, Maria Antonietta
Plochocka, Paulina
Malic, Ermin
- DOI
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10.1002/aenm.202304343
- URN
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urn:nbn:de:101:1-2024031613030913070804
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:47 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Thompson, Joshua J. P.
- Dyksik, Mateusz
- Peksa, Paulina
- Posmyk, Katarzyna
- Joki, Ambjörn
- Perea‐Causin, Raul
- Erhart, Paul
- Baranowski, Michał
- Loi, Maria Antonietta
- Plochocka, Paulina
- Malic, Ermin
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Dynamics of self-hybridized exciton–polaritons in 2D halide perovskites
Band Structure and Exciton Dynamics in Quasi‐2D Dodecylammonium Halide Perovskites
Coherent Phonon‐Induced Modulation of Charge Transfer in 2D Hybrid Perovskites
Exciton Fine Structure in 2D Perovskites: The Out‐of‐Plane Excitonic State
Phonon Analysis of 2D Organic‐Halide Perovskites in the Low‐ and Mid‐IR Region
Chiroptical Response Inversion and Enhancement of Room‐Temperature Exciton‐Polaritons Using 2D Chirality in Perovskites
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Photoluminescence of 2D and quasi-2D perovskites
Rationalizing Electron–Phonon Interactions and Hot Carriers Cooling in 2D to 3D Metal Halide Perovskites
Optically Tunable Many‐Body Exciton‐Phonon Quantum Interference
Circumventing the phonon bottleneck by multiphonon-mediated hot exciton cooling at the nanoscale
Exciton-phonon interactions in quantum dots and 2D materials
Dynamics of self-hybridized exciton–polaritons in 2D halide perovskites
Band Structure and Exciton Dynamics in Quasi‐2D Dodecylammonium Halide Perovskites
Coherent Phonon‐Induced Modulation of Charge Transfer in 2D Hybrid Perovskites
Exciton Fine Structure in 2D Perovskites: The Out‐of‐Plane Excitonic State
Phonon Analysis of 2D Organic‐Halide Perovskites in the Low‐ and Mid‐IR Region
Chiroptical Response Inversion and Enhancement of Room‐Temperature Exciton‐Polaritons Using 2D Chirality in Perovskites
Exciton engineering of 2D Ruddlesden–Popper perovskites by synergistically tuning the intra and interlayer structures
Photoluminescence of 2D and quasi-2D perovskites
Rationalizing Electron–Phonon Interactions and Hot Carriers Cooling in 2D to 3D Metal Halide Perovskites