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Phonon-Bottleneck E...
Phonon-Bottleneck Enhanced Exciton Emission in 2D Perovskites
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- Thompson, J. J.P. (author)
- Philipps-Universität Marburg,Philipps University Marburg,University Of Cambridge
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- Dyksik, Mateusz (author)
- Politechnika Wrocławska,Wrocław University of Science and Technology
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- Peksa, Paulina (author)
- Politechnika Wrocławska,Wrocław University of Science and Technology
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- Posmyk, Katarzyna (author)
- Politechnika Wrocławska,Wrocław University of Science and Technology
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- Joki, Ambjörn, 1997 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Perea Causin, Raul, 1995 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Erhart, Paul, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Baranowski, M (author)
- Politechnika Wrocławska,Wrocław University of Science and Technology
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- Loi, M. A. (author)
- Rijksuniversiteit Groningen,University of Groningen
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- Plochocka, Paulina (author)
- Politechnika Wrocławska,Wrocław University of Science and Technology
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- Malic, Ermin, 1980 (author)
- Philipps-Universität Marburg,Philipps University Marburg
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Advanced Energy Materials. - 1614-6840 .- 1614-6832. ; 14:20
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https://doi.org/10.1...
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Abstract
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- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- exciton dynamics
- phonons
- layered perovskite
- excitons
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Thompson, J. J.P ...
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Dyksik, Mateusz
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Peksa, Paulina
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Posmyk, Katarzyn ...
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Joki, Ambjörn, 1 ...
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Perea Causin, Ra ...
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show more...
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Erhart, Paul, 19 ...
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Baranowski, M
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Loi, M. A.
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Plochocka, Pauli ...
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Malic, Ermin, 19 ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Advanced Energy ...
- By the university
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Chalmers University of Technology