Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering
Photon recycling (PR) in light-emitting and light-absorbing devices with incoherent scattering is investigated using a novel optical framework, self-consistently coupled to electrical models for current- and voltage-controlled devices to trace the inherent optoelectronic backcoupling associated with...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-06-01
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| Series: | APL Energy |
| Online Access: | http://dx.doi.org/10.1063/5.0268284 |
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| author | Simon J. Zeder Balthasar Blülle Beat Ruhstaller Urs Aeberhard |
| author_facet | Simon J. Zeder Balthasar Blülle Beat Ruhstaller Urs Aeberhard |
| author_sort | Simon J. Zeder |
| collection | DOAJ |
| description | Photon recycling (PR) in light-emitting and light-absorbing devices with incoherent scattering is investigated using a novel optical framework, self-consistently coupled to electrical models for current- and voltage-controlled devices to trace the inherent optoelectronic backcoupling associated with PR. This study reveals a universal competition between photon re-absorption and scattering processes, which governs performance across device types. In light-emitting diodes, the optimal emitter layer thickness is highly sensitive to scattering outcoupling structures and PR; their consideration in modeling is crucial. In addition, scattering structures impose stricter radiative efficiency requirements for PR to remain beneficial, highlighting the trade-off between loss mitigation and re-absorption penalties. For photovoltaic devices, the impact of front texturing on PR and luminescent coupling (LC) in perovskite–silicon tandem solar cells is quantified, including the first demonstration of luminescent self-coupling at the emissive perovskite-coated texture. While the texture minimally affects PR/LC overall, both scattering and re-absorption redistribute photogeneration. LC enhances tandem efficiency by 4.4%abs in the Auger limit for bottom-limited configurations, illustrating how photon redirection alleviates current-matching constraints. |
| format | Article |
| id | doaj-art-0a443adbbd5545e1bd93ebcf7bab6961 |
| institution | Kabale University |
| issn | 2770-9000 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | AIP Publishing LLC |
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| series | APL Energy |
| spelling | doaj-art-0a443adbbd5545e1bd93ebcf7bab69612025-08-20T03:29:17ZengAIP Publishing LLCAPL Energy2770-90002025-06-0132026110026110-1110.1063/5.0268284Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scatteringSimon J. Zeder0Balthasar Blülle1Beat Ruhstaller2Urs Aeberhard3Fluxim AG, Katharina-Sulzer-Platz 2, 8400 Winterthur, SwitzerlandFluxim AG, Katharina-Sulzer-Platz 2, 8400 Winterthur, SwitzerlandFluxim AG, Katharina-Sulzer-Platz 2, 8400 Winterthur, SwitzerlandFluxim AG, Katharina-Sulzer-Platz 2, 8400 Winterthur, SwitzerlandPhoton recycling (PR) in light-emitting and light-absorbing devices with incoherent scattering is investigated using a novel optical framework, self-consistently coupled to electrical models for current- and voltage-controlled devices to trace the inherent optoelectronic backcoupling associated with PR. This study reveals a universal competition between photon re-absorption and scattering processes, which governs performance across device types. In light-emitting diodes, the optimal emitter layer thickness is highly sensitive to scattering outcoupling structures and PR; their consideration in modeling is crucial. In addition, scattering structures impose stricter radiative efficiency requirements for PR to remain beneficial, highlighting the trade-off between loss mitigation and re-absorption penalties. For photovoltaic devices, the impact of front texturing on PR and luminescent coupling (LC) in perovskite–silicon tandem solar cells is quantified, including the first demonstration of luminescent self-coupling at the emissive perovskite-coated texture. While the texture minimally affects PR/LC overall, both scattering and re-absorption redistribute photogeneration. LC enhances tandem efficiency by 4.4%abs in the Auger limit for bottom-limited configurations, illustrating how photon redirection alleviates current-matching constraints.http://dx.doi.org/10.1063/5.0268284 |
| spellingShingle | Simon J. Zeder Balthasar Blülle Beat Ruhstaller Urs Aeberhard Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering APL Energy |
| title | Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering |
| title_full | Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering |
| title_fullStr | Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering |
| title_full_unstemmed | Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering |
| title_short | Optimizing perovskite LEDs and tandem PV cells: The role of photon-recycling and luminescent coupling in presence of strong light scattering |
| title_sort | optimizing perovskite leds and tandem pv cells the role of photon recycling and luminescent coupling in presence of strong light scattering |
| url | http://dx.doi.org/10.1063/5.0268284 |
| work_keys_str_mv | AT simonjzeder optimizingperovskiteledsandtandempvcellstheroleofphotonrecyclingandluminescentcouplinginpresenceofstronglightscattering AT balthasarblulle optimizingperovskiteledsandtandempvcellstheroleofphotonrecyclingandluminescentcouplinginpresenceofstronglightscattering AT beatruhstaller optimizingperovskiteledsandtandempvcellstheroleofphotonrecyclingandluminescentcouplinginpresenceofstronglightscattering AT ursaeberhard optimizingperovskiteledsandtandempvcellstheroleofphotonrecyclingandluminescentcouplinginpresenceofstronglightscattering |