Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals
Photon recycling, the iterative process of re-absorption and re-emission of photons in an absorbing medium, can play an important role in the power-conversion efficiency of photovoltaic cells. To date, several studies have proposed that this process may occur in bulk or thin films of inorganic lead-...
| Autores: | , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:250529 |
| Acceso en línea: | https://ddd.uab.cat/record/250529 https://dx.doi.org/urn:doi:10.1021/acsphotonics.1c00953 |
| Access Level: | acceso abierto |
| Palabra clave: | Optoelectronics Perovskite nanocrystals Photon recycling Photoluminescence Monte Carlo simulation |
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Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystalsvan der Laan, Marco|||0000-0001-9571-3190de Weerd, Chris|||0000-0002-8826-2616Poirier, Lucasvan de Water, OscarPoonia, DeepikaGomez, Leyre|||0000-0002-2926-5665Kinge, SachinSiebbeles, Laurens D. A.|||0000-0002-4812-7495Koenderink, A. Femius|||0000-0003-1617-5748Gregorkiewicz, Tom|||0000-0003-2092-8378Schall, PeterOptoelectronicsPerovskite nanocrystalsPhoton recyclingPhotoluminescenceMonte Carlo simulationPhoton recycling, the iterative process of re-absorption and re-emission of photons in an absorbing medium, can play an important role in the power-conversion efficiency of photovoltaic cells. To date, several studies have proposed that this process may occur in bulk or thin films of inorganic lead-halide perovskites, but conclusive proof of the occurrence and magnitude of this effect is missing. Here, we provide clear evidence and quantitative estimation of photon recycling in CsPbBr nanocrystal suspensions by combining measurements of steady-state and time-resolved photoluminescence (PL) and PL quantum yield with simulations of photon diffusion through the suspension. The steady-state PL shows clear spectral modifications including red shifts and quantum yield decrease, while the time-resolved measurements show prolonged PL decay and rise times. These effects grow as the nanocrystal concentration and distance traveled through the suspension increase. Monte Carlo simulations of photons diffusing through the medium and exhibiting absorption and re-emission account quantitatively for the observed trends and show that up to five re-emission cycles are involved. We thus identify 4 quantifiable measures, PL red shift, PL QY, PL decay time, and PL rise time that together all point toward repeated, energy-directed radiative transfer between nanocrystals. These results highlight the importance of photon recycling for both optical properties and photovoltaic applications of inorganic perovskite nanocrystals. 22021-01-0120212021-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/250529https://dx.doi.org/urn:doi:10.1021/acsphotonics.1c00953reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2505292026-06-06T12:50:31Z |
| dc.title.none.fl_str_mv |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| title |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| spellingShingle |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals van der Laan, Marco|||0000-0001-9571-3190 Optoelectronics Perovskite nanocrystals Photon recycling Photoluminescence Monte Carlo simulation |
| title_short |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| title_full |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| title_fullStr |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| title_full_unstemmed |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| title_sort |
Photon recycling in CsPbBr3 All-Inorganic Perovskite Nanocrystals |
| dc.creator.none.fl_str_mv |
van der Laan, Marco|||0000-0001-9571-3190 de Weerd, Chris|||0000-0002-8826-2616 Poirier, Lucas van de Water, Oscar Poonia, Deepika Gomez, Leyre|||0000-0002-2926-5665 Kinge, Sachin Siebbeles, Laurens D. A.|||0000-0002-4812-7495 Koenderink, A. Femius|||0000-0003-1617-5748 Gregorkiewicz, Tom|||0000-0003-2092-8378 Schall, Peter |
| author |
van der Laan, Marco|||0000-0001-9571-3190 |
| author_facet |
van der Laan, Marco|||0000-0001-9571-3190 de Weerd, Chris|||0000-0002-8826-2616 Poirier, Lucas van de Water, Oscar Poonia, Deepika Gomez, Leyre|||0000-0002-2926-5665 Kinge, Sachin Siebbeles, Laurens D. A.|||0000-0002-4812-7495 Koenderink, A. Femius|||0000-0003-1617-5748 Gregorkiewicz, Tom|||0000-0003-2092-8378 Schall, Peter |
| author_role |
author |
| author2 |
de Weerd, Chris|||0000-0002-8826-2616 Poirier, Lucas van de Water, Oscar Poonia, Deepika Gomez, Leyre|||0000-0002-2926-5665 Kinge, Sachin Siebbeles, Laurens D. A.|||0000-0002-4812-7495 Koenderink, A. Femius|||0000-0003-1617-5748 Gregorkiewicz, Tom|||0000-0003-2092-8378 Schall, Peter |
| author2_role |
author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Optoelectronics Perovskite nanocrystals Photon recycling Photoluminescence Monte Carlo simulation |
| topic |
Optoelectronics Perovskite nanocrystals Photon recycling Photoluminescence Monte Carlo simulation |
| description |
Photon recycling, the iterative process of re-absorption and re-emission of photons in an absorbing medium, can play an important role in the power-conversion efficiency of photovoltaic cells. To date, several studies have proposed that this process may occur in bulk or thin films of inorganic lead-halide perovskites, but conclusive proof of the occurrence and magnitude of this effect is missing. Here, we provide clear evidence and quantitative estimation of photon recycling in CsPbBr nanocrystal suspensions by combining measurements of steady-state and time-resolved photoluminescence (PL) and PL quantum yield with simulations of photon diffusion through the suspension. The steady-state PL shows clear spectral modifications including red shifts and quantum yield decrease, while the time-resolved measurements show prolonged PL decay and rise times. These effects grow as the nanocrystal concentration and distance traveled through the suspension increase. Monte Carlo simulations of photons diffusing through the medium and exhibiting absorption and re-emission account quantitatively for the observed trends and show that up to five re-emission cycles are involved. We thus identify 4 quantifiable measures, PL red shift, PL QY, PL decay time, and PL rise time that together all point toward repeated, energy-directed radiative transfer between nanocrystals. These results highlight the importance of photon recycling for both optical properties and photovoltaic applications of inorganic perovskite nanocrystals. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2 2021-01-01 2021 2021-01-01 |
| dc.type.none.fl_str_mv |
Article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
https://ddd.uab.cat/record/250529 https://dx.doi.org/urn:doi:10.1021/acsphotonics.1c00953 |
| url |
https://ddd.uab.cat/record/250529 https://dx.doi.org/urn:doi:10.1021/acsphotonics.1c00953 |
| dc.language.none.fl_str_mv |
Inglés eng |
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Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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application/pdf |
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reponame:Dipòsit Digital de Documents de la UAB instname:Universitat Autònoma de Barcelona |
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Universitat Autònoma de Barcelona |
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