Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices
Reflective loss is one of the main factors contributing to power conversion efficiency limitation in thin-film perovskite solar cells. This issue has been tackled through several approaches, such as anti-reflective coatings, surface texturing, or superficial light-trapping metastructures. We report...
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MDPI AG
2023-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/11/3934 |
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| author | Ana Bărar Stephen Akwei Maclean Octavian Dănilă André D. Taylor |
| author_facet | Ana Bărar Stephen Akwei Maclean Octavian Dănilă André D. Taylor |
| author_sort | Ana Bărar |
| collection | DOAJ |
| description | Reflective loss is one of the main factors contributing to power conversion efficiency limitation in thin-film perovskite solar cells. This issue has been tackled through several approaches, such as anti-reflective coatings, surface texturing, or superficial light-trapping metastructures. We report detailed simulation-based investigations on the photon trapping capabilities of a standard Methylammonium Lead Iodide (MAPbI<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>) solar cell, with its top layer conveniently designed as a fractal metadevice, to reach a reflection value <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>R</mi><mo><</mo><mn>0.1</mn></mrow></semantics></math></inline-formula> in the visible domain. Our results show that, under certain architecture configurations, reflection values below 0.1 are obtained throughout the visible domain. This represents a net improvement when compared to the 0.25 reflection yielded by a reference MAPbI<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> having a plane surface, under identical simulation conditions. We also present the minimum architectural requirements of the metadevice by comparing it to simpler structures of the same family and performing a comparative study. Furthermore, the designed metadevice presents low power dissipation and exhibits approximately similar behavior regardless of the incident polarization angle. As a result, the proposed system is a viable candidate for being a standard requirement in obtaining high-efficiency perovskite solar cells. |
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| last_indexed | 2024-03-11T03:04:05Z |
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| series | Materials |
| spelling | doaj.art-d82323020cae4d2495c47c7fcf3d7fae2023-11-18T08:08:01ZengMDPI AGMaterials1996-19442023-05-011611393410.3390/ma16113934Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal MetadevicesAna Bărar0Stephen Akwei Maclean1Octavian Dănilă2André D. Taylor3Electronic Technology and Reliability Department, Polytechnic University of Bucharest, 060082 Bucharest, RomaniaChemical Engineering Department, Tandon School of Engineering, New York University, Brooklyn, NY 11201, USAPhysics Department, Polytechnic University of Bucharest, 060082 Bucharest, RomaniaChemical Engineering Department, Tandon School of Engineering, New York University, Brooklyn, NY 11201, USAReflective loss is one of the main factors contributing to power conversion efficiency limitation in thin-film perovskite solar cells. This issue has been tackled through several approaches, such as anti-reflective coatings, surface texturing, or superficial light-trapping metastructures. We report detailed simulation-based investigations on the photon trapping capabilities of a standard Methylammonium Lead Iodide (MAPbI<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula>) solar cell, with its top layer conveniently designed as a fractal metadevice, to reach a reflection value <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>R</mi><mo><</mo><mn>0.1</mn></mrow></semantics></math></inline-formula> in the visible domain. Our results show that, under certain architecture configurations, reflection values below 0.1 are obtained throughout the visible domain. This represents a net improvement when compared to the 0.25 reflection yielded by a reference MAPbI<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mrow></mrow><mn>3</mn></msub></semantics></math></inline-formula> having a plane surface, under identical simulation conditions. We also present the minimum architectural requirements of the metadevice by comparing it to simpler structures of the same family and performing a comparative study. Furthermore, the designed metadevice presents low power dissipation and exhibits approximately similar behavior regardless of the incident polarization angle. As a result, the proposed system is a viable candidate for being a standard requirement in obtaining high-efficiency perovskite solar cells.https://www.mdpi.com/1996-1944/16/11/3934fractal metadevicesperovskite solar cellslight trapping structureselectromagnetic field control |
| spellingShingle | Ana Bărar Stephen Akwei Maclean Octavian Dănilă André D. Taylor Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices Materials fractal metadevices perovskite solar cells light trapping structures electromagnetic field control |
| title | Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices |
| title_full | Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices |
| title_fullStr | Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices |
| title_full_unstemmed | Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices |
| title_short | Towards High-Efficiency Photon Trapping in Thin-Film Perovskite Solar Cells Using Etched Fractal Metadevices |
| title_sort | towards high efficiency photon trapping in thin film perovskite solar cells using etched fractal metadevices |
| topic | fractal metadevices perovskite solar cells light trapping structures electromagnetic field control |
| url | https://www.mdpi.com/1996-1944/16/11/3934 |
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