Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells
The perovskite solar cell (PSC) has the benefits of flexibility, inexpensiveness, and high efficiency, and has important prospective applications. However, serious optical losing and low solar energy-utilizing efficiency remain a challenge for the ultra-thin PSCs because of the interface reflection...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/179754 |
| _version_ | 1826124611095363584 |
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| author | Zhang, Xinping Du, Jiaxin Wang, Fuqiang Xu, Zenghui Li, Xiang Liang, Huaxu Yi, Hongliang |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Zhang, Xinping Du, Jiaxin Wang, Fuqiang Xu, Zenghui Li, Xiang Liang, Huaxu Yi, Hongliang |
| author_sort | Zhang, Xinping |
| collection | NTU |
| description | The perovskite solar cell (PSC) has the benefits of flexibility, inexpensiveness, and high efficiency, and has important prospective applications. However, serious optical losing and low solar energy-utilizing efficiency remain a challenge for the ultra-thin PSCs because of the interface reflection of traditional planar structure. In this study, a hierarchical pore structure with a confined resonant mode is introduced and optimized by electromagnetic theory to improve the solar energy absorbing and utilizing efficiency of ultra-thin PSCs. The large pores in the top layer that support a whispering gallery mode can focus and guide the incident light into the solar cell. The small pores in the bottom layer enable backward scattering of the unabsorbed light and can improve the effective absorption of active layer. The finite-difference time-domain method is employed to optimize the geometric parameters of hierarchical pore structure to improve the light absorption of PSCs. The proposed resonant hierarchical pore structure can greatly improve sunlight absorption of ultra-thin PSCs, and the effective light absorption and photocurrent of PSCs with a hierarchical pore structure is 20.7% higher than that of PSCs with traditional planar structure. This work can offer a beneficial guideline for improving solar energy utilizing efficiency of various thin-film solar cells. |
| first_indexed | 2024-10-01T06:23:12Z |
| format | Journal Article |
| id | ntu-10356/179754 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:23:12Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1797542024-08-24T16:48:26Z Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells Zhang, Xinping Du, Jiaxin Wang, Fuqiang Xu, Zenghui Li, Xiang Liang, Huaxu Yi, Hongliang School of Mechanical and Aerospace Engineering Engineering Hierarchical pore structures Planar structure The perovskite solar cell (PSC) has the benefits of flexibility, inexpensiveness, and high efficiency, and has important prospective applications. However, serious optical losing and low solar energy-utilizing efficiency remain a challenge for the ultra-thin PSCs because of the interface reflection of traditional planar structure. In this study, a hierarchical pore structure with a confined resonant mode is introduced and optimized by electromagnetic theory to improve the solar energy absorbing and utilizing efficiency of ultra-thin PSCs. The large pores in the top layer that support a whispering gallery mode can focus and guide the incident light into the solar cell. The small pores in the bottom layer enable backward scattering of the unabsorbed light and can improve the effective absorption of active layer. The finite-difference time-domain method is employed to optimize the geometric parameters of hierarchical pore structure to improve the light absorption of PSCs. The proposed resonant hierarchical pore structure can greatly improve sunlight absorption of ultra-thin PSCs, and the effective light absorption and photocurrent of PSCs with a hierarchical pore structure is 20.7% higher than that of PSCs with traditional planar structure. This work can offer a beneficial guideline for improving solar energy utilizing efficiency of various thin-film solar cells. Published version This work was supported by National Natural Science Foundation of China (52076064, 52211530089); Fundamental Research Funds for the Central Universities (HIT.DZJJ.2023095); National Key Research and Development Program of China (2018YFA0702300); and Taishan Scholar Foundation of Shandong Province (tsqn201812105). 2024-08-20T08:18:27Z 2024-08-20T08:18:27Z 2024 Journal Article Zhang, X., Du, J., Wang, F., Xu, Z., Li, X., Liang, H. & Yi, H. (2024). Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells. Optics Express, 32(10), 17197-17210. https://dx.doi.org/10.1364/OE.523065 1094-4087 https://hdl.handle.net/10356/179754 10.1364/OE.523065 38858909 2-s2.0-85192676043 10 32 17197 17210 en Optics Express © 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement. application/pdf |
| spellingShingle | Engineering Hierarchical pore structures Planar structure Zhang, Xinping Du, Jiaxin Wang, Fuqiang Xu, Zenghui Li, Xiang Liang, Huaxu Yi, Hongliang Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells |
| title | Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells |
| title_full | Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells |
| title_fullStr | Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells |
| title_full_unstemmed | Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells |
| title_short | Hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra-thin perovskite solar cells |
| title_sort | hierarchical pore structure with a confined resonant mode for improving the solar energy utilizing efficiency of ultra thin perovskite solar cells |
| topic | Engineering Hierarchical pore structures Planar structure |
| url | https://hdl.handle.net/10356/179754 |
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