Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures
Abstract This study presents subwavelength ellipsoidal dielectric nanostructures (SEDNs) to enhance absorption in organic solar cells (OSCs) through the combined effects of broadband anti-reflection (AR) and Mie scattering. Strong forward-directed scattering at shorter wavelengths is produced by the...
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Nature Portfolio
2025-06-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-04980-8 |
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| author | Donggyu Lim Seongcheol Ju Cheolhun Kang Dohyun Kim Jong Hoon Jung Jeonghyun Kim Hui Joon Park Kyu-Tae Lee |
| author_facet | Donggyu Lim Seongcheol Ju Cheolhun Kang Dohyun Kim Jong Hoon Jung Jeonghyun Kim Hui Joon Park Kyu-Tae Lee |
| author_sort | Donggyu Lim |
| collection | DOAJ |
| description | Abstract This study presents subwavelength ellipsoidal dielectric nanostructures (SEDNs) to enhance absorption in organic solar cells (OSCs) through the combined effects of broadband anti-reflection (AR) and Mie scattering. Strong forward-directed scattering at shorter wavelengths is produced by the simultaneous excitation of both electric and magnetic moments in the SEDN, thereby lengthening the optical path length inside the active layer. Additionally, the SEDNs reduce reflection over a broad wavelength range, further enhancing absorption. By fine-tuning the structural parameters of the SEDN, including a minor axis diameter of 100 nm, a spacing of 30 nm, and an aspect ratio of 3.6 for TE polarization, a short-circuit current density (J SC) of 28.11 mA/cm2 is achieved, representing an 9.46% improvement over planar OSCs. Light scattering is analyzed through multipolar decomposition, while the AR effect is studied using optical admittance analysis. The proposed approaches not only offer performance enhancements for applications such as thin-film solar cells, photodetectors, nanoantennas, and metasurfaces, but also show potential for polarization-sensitive applications including bio-imaging, defect analysis, and optical security systems. |
| format | Article |
| id | doaj-art-08cdb161a41b49149af77f85955ecec6 |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-08cdb161a41b49149af77f85955ecec62025-08-20T02:31:04ZengNature PortfolioScientific Reports2045-23222025-06-0115111210.1038/s41598-025-04980-8Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructuresDonggyu Lim0Seongcheol Ju1Cheolhun Kang2Dohyun Kim3Jong Hoon Jung4Jeonghyun Kim5Hui Joon Park6Kyu-Tae Lee7Department of Physics, Inha UniversityDepartment of Physics, Inha UniversityDepartment of Physics, Inha UniversityDepartment of Physics, Inha UniversityDepartment of Physics, Inha UniversityDepartment of Electronic Convergence Engineering, Kwangwoon UniversityDepartment of Organic and Nano Engineering, Hanyang UniversityDepartment of Physics, Inha UniversityAbstract This study presents subwavelength ellipsoidal dielectric nanostructures (SEDNs) to enhance absorption in organic solar cells (OSCs) through the combined effects of broadband anti-reflection (AR) and Mie scattering. Strong forward-directed scattering at shorter wavelengths is produced by the simultaneous excitation of both electric and magnetic moments in the SEDN, thereby lengthening the optical path length inside the active layer. Additionally, the SEDNs reduce reflection over a broad wavelength range, further enhancing absorption. By fine-tuning the structural parameters of the SEDN, including a minor axis diameter of 100 nm, a spacing of 30 nm, and an aspect ratio of 3.6 for TE polarization, a short-circuit current density (J SC) of 28.11 mA/cm2 is achieved, representing an 9.46% improvement over planar OSCs. Light scattering is analyzed through multipolar decomposition, while the AR effect is studied using optical admittance analysis. The proposed approaches not only offer performance enhancements for applications such as thin-film solar cells, photodetectors, nanoantennas, and metasurfaces, but also show potential for polarization-sensitive applications including bio-imaging, defect analysis, and optical security systems.https://doi.org/10.1038/s41598-025-04980-8Organic solar cellSubwavelength nanostructureMie scatteringAnti-reflection |
| spellingShingle | Donggyu Lim Seongcheol Ju Cheolhun Kang Dohyun Kim Jong Hoon Jung Jeonghyun Kim Hui Joon Park Kyu-Tae Lee Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures Scientific Reports Organic solar cell Subwavelength nanostructure Mie scattering Anti-reflection |
| title | Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures |
| title_full | Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures |
| title_fullStr | Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures |
| title_full_unstemmed | Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures |
| title_short | Enhanced absorption in organic solar cells via combined anti-reflection and Mie resonance effects in subwavelength ellipsoidal dielectric nanostructures |
| title_sort | enhanced absorption in organic solar cells via combined anti reflection and mie resonance effects in subwavelength ellipsoidal dielectric nanostructures |
| topic | Organic solar cell Subwavelength nanostructure Mie scattering Anti-reflection |
| url | https://doi.org/10.1038/s41598-025-04980-8 |
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