Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots
The interface of perovskite solar cells (PSCs) determines their power conversion efficiency (PCE). Here, the buried bottom surface of a perovskite film is efficiently passivated by using MoS<sub>2</sub> quantum dots. The perovskite films prepared on top of MoS<sub>2</sub>-ass...
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MDPI AG
2022-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/17/3079 |
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| author | Zhao Luo Tan Guo Chen Wang Jifan Zou Jianxun Wang Wei Dong Jing Li Wei Zhang Xiaoyu Zhang Weitao Zheng |
| author_facet | Zhao Luo Tan Guo Chen Wang Jifan Zou Jianxun Wang Wei Dong Jing Li Wei Zhang Xiaoyu Zhang Weitao Zheng |
| author_sort | Zhao Luo |
| collection | DOAJ |
| description | The interface of perovskite solar cells (PSCs) determines their power conversion efficiency (PCE). Here, the buried bottom surface of a perovskite film is efficiently passivated by using MoS<sub>2</sub> quantum dots. The perovskite films prepared on top of MoS<sub>2</sub>-assisted substrates show enhanced crystallinity, as evidenced by improved photoluminescence and a prolonged emission lifetime. MoS<sub>2</sub> quantum dots with a large bandgap of 2.68 eV not only facilitate hole collection but also prevent the photogenerated electrons from flowing to the hole transport layer. Overall promotion leads to decreased trap density and an enhanced built-in electric field, thus increasing the device PCE from 17.87% to 19.95%. |
| first_indexed | 2024-03-10T01:25:27Z |
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| id | doaj.art-0936d8ae553c41bc9131935ce7fede4e |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T01:25:27Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-0936d8ae553c41bc9131935ce7fede4e2023-11-23T13:50:31ZengMDPI AGNanomaterials2079-49912022-09-011217307910.3390/nano12173079Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum DotsZhao Luo0Tan Guo1Chen Wang2Jifan Zou3Jianxun Wang4Wei Dong5Jing Li6Wei Zhang7Xiaoyu Zhang8Weitao Zheng9Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaCollege of Electronic Science and Engineering, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaKey Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, Jilin University, Changchun 130012, ChinaThe interface of perovskite solar cells (PSCs) determines their power conversion efficiency (PCE). Here, the buried bottom surface of a perovskite film is efficiently passivated by using MoS<sub>2</sub> quantum dots. The perovskite films prepared on top of MoS<sub>2</sub>-assisted substrates show enhanced crystallinity, as evidenced by improved photoluminescence and a prolonged emission lifetime. MoS<sub>2</sub> quantum dots with a large bandgap of 2.68 eV not only facilitate hole collection but also prevent the photogenerated electrons from flowing to the hole transport layer. Overall promotion leads to decreased trap density and an enhanced built-in electric field, thus increasing the device PCE from 17.87% to 19.95%.https://www.mdpi.com/2079-4991/12/17/3079perovskitesolar cellMoS<sub>2</sub>quantum dotsinterface |
| spellingShingle | Zhao Luo Tan Guo Chen Wang Jifan Zou Jianxun Wang Wei Dong Jing Li Wei Zhang Xiaoyu Zhang Weitao Zheng Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots Nanomaterials perovskite solar cell MoS<sub>2</sub> quantum dots interface |
| title | Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots |
| title_full | Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots |
| title_fullStr | Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots |
| title_full_unstemmed | Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots |
| title_short | Enhancing the Efficiency of Perovskite Solar Cells through Interface Engineering with MoS<sub>2</sub> Quantum Dots |
| title_sort | enhancing the efficiency of perovskite solar cells through interface engineering with mos sub 2 sub quantum dots |
| topic | perovskite solar cell MoS<sub>2</sub> quantum dots interface |
| url | https://www.mdpi.com/2079-4991/12/17/3079 |
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