Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region
Tunnel oxide passivated contact (TOPCon) solar cells are key emerging devices in the commercial silicon-solar-cell sector. It is essential to have a suitable bottom cell in perovskite/silicon tandem solar cells for commercial use, given that good candidates boost efficiency through increased voltage...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/24/8199 |
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| author | Changhyun Lee Jiyeon Hyun Jiyeon Nam Seok-Hyun Jeong Hoyoung Song Soohyun Bae Hyunju Lee Jaeseung Seol Donghwan Kim Yoonmook Kang Hae-Seok Lee |
| author_facet | Changhyun Lee Jiyeon Hyun Jiyeon Nam Seok-Hyun Jeong Hoyoung Song Soohyun Bae Hyunju Lee Jaeseung Seol Donghwan Kim Yoonmook Kang Hae-Seok Lee |
| author_sort | Changhyun Lee |
| collection | DOAJ |
| description | Tunnel oxide passivated contact (TOPCon) solar cells are key emerging devices in the commercial silicon-solar-cell sector. It is essential to have a suitable bottom cell in perovskite/silicon tandem solar cells for commercial use, given that good candidates boost efficiency through increased voltage. This is due to low recombination loss through the use of polysilicon and tunneling oxides. Here, a thin amorphous silicon layer is proposed to reduce parasitic absorption in the near-infrared region (NIR) in TOPCon solar cells, when used as the bottom cell of a tandem solar-cell system. Lifetime measurements and optical microscopy (OM) revealed that modifying both the timing and temperature of the annealing step to crystalize amorphous silicon to polysilicon can improve solar cell performance. For tandem cell applications, absorption in the NIR was compared using a semitransparent perovskite cell as a filter. Taken together, we confirmed the positive results of thin poly-Si, and expect that this will improve the application of perovskite/silicon tandem solar cells. |
| first_indexed | 2024-03-10T04:14:08Z |
| format | Article |
| id | doaj.art-7ec71a85fe5c457c92e4b1d14da9b4b2 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T04:14:08Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-7ec71a85fe5c457c92e4b1d14da9b4b22023-11-23T08:03:56ZengMDPI AGEnergies1996-10732021-12-011424819910.3390/en14248199Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared RegionChanghyun Lee0Jiyeon Hyun1Jiyeon Nam2Seok-Hyun Jeong3Hoyoung Song4Soohyun Bae5Hyunju Lee6Jaeseung Seol7Donghwan Kim8Yoonmook Kang9Hae-Seok Lee10Department of Materials Science and Engineering, Korea University, Seoul 02841, KoreaDepartment of Materials Science and Engineering, Korea University, Seoul 02841, KoreaDepartment of Materials Science and Engineering, Korea University, Seoul 02841, KoreaDepartment of Materials Science and Engineering, Korea University, Seoul 02841, KoreaDepartment of Materials Science and Engineering, Korea University, Seoul 02841, KoreaPhotovoltaics Laboratory, Korea Institute of Energy Research, Daejeon 34129, KoreaMeiji Renewable Energy Laboratory, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, JapanHanwha Q CELLS GmbH, Sonnenallee 17-21, Bitterfeld-Wolfen OT Thalheim, 06766 Bitterfeld-Wolfen, GermanyDepartment of Materials Science and Engineering, Korea University, Seoul 02841, KoreaKU-KIST Graduate School of Energy and Environment, Green School, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, KoreaKU-KIST Graduate School of Energy and Environment, Green School, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, KoreaTunnel oxide passivated contact (TOPCon) solar cells are key emerging devices in the commercial silicon-solar-cell sector. It is essential to have a suitable bottom cell in perovskite/silicon tandem solar cells for commercial use, given that good candidates boost efficiency through increased voltage. This is due to low recombination loss through the use of polysilicon and tunneling oxides. Here, a thin amorphous silicon layer is proposed to reduce parasitic absorption in the near-infrared region (NIR) in TOPCon solar cells, when used as the bottom cell of a tandem solar-cell system. Lifetime measurements and optical microscopy (OM) revealed that modifying both the timing and temperature of the annealing step to crystalize amorphous silicon to polysilicon can improve solar cell performance. For tandem cell applications, absorption in the NIR was compared using a semitransparent perovskite cell as a filter. Taken together, we confirmed the positive results of thin poly-Si, and expect that this will improve the application of perovskite/silicon tandem solar cells.https://www.mdpi.com/1996-1073/14/24/8199silicon solar cellspassivated contactamorphous silicontunnel oxide passivated contact |
| spellingShingle | Changhyun Lee Jiyeon Hyun Jiyeon Nam Seok-Hyun Jeong Hoyoung Song Soohyun Bae Hyunju Lee Jaeseung Seol Donghwan Kim Yoonmook Kang Hae-Seok Lee Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region Energies silicon solar cells passivated contact amorphous silicon tunnel oxide passivated contact |
| title | Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region |
| title_full | Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region |
| title_fullStr | Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region |
| title_full_unstemmed | Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region |
| title_short | Amorphous Silicon Thin Film Deposition for Poly-Si/SiO<sub>2</sub> Contact Cells to Minimize Parasitic Absorption in the Near-Infrared Region |
| title_sort | amorphous silicon thin film deposition for poly si sio sub 2 sub contact cells to minimize parasitic absorption in the near infrared region |
| topic | silicon solar cells passivated contact amorphous silicon tunnel oxide passivated contact |
| url | https://www.mdpi.com/1996-1073/14/24/8199 |
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