Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics
Accumulated halide defects on the buried interfaces of halide perovskite layers have exacerbated undesirable nonradiative recombination in the n–i–p perovskite photovoltaics, but are challenging to be passivated—the commonly used passivation molecules at buried interfaces of perovskite layers would...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-02-01
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| Series: | Advanced Energy & Sustainability Research |
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| Online Access: | https://doi.org/10.1002/aesr.202200150 |
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| author | Xiaofeng Huang Yaolin Hou Qifan Feng Xiaoying Niu Yazhou Zhang Ziheng Tang Fang Cao Jun Yin Jing Li Nanfeng Zheng Binghui Wu |
| author_facet | Xiaofeng Huang Yaolin Hou Qifan Feng Xiaoying Niu Yazhou Zhang Ziheng Tang Fang Cao Jun Yin Jing Li Nanfeng Zheng Binghui Wu |
| author_sort | Xiaofeng Huang |
| collection | DOAJ |
| description | Accumulated halide defects on the buried interfaces of halide perovskite layers have exacerbated undesirable nonradiative recombination in the n–i–p perovskite photovoltaics, but are challenging to be passivated—the commonly used passivation molecules at buried interfaces of perovskite layers would be inevitably eroded in the solution processes of perovskite deposition. Regarding the solvent incompatibility, herein, the ZnO–EA/SnO2–Cl electron transfer layers (ETLs) terminated with functional sites (i.e., ethanolamine (EA) ligands on ZnO and Cl− ions on SnO2) to spontaneously heal the buried interfaces of perovskite layers are customized. The specialties of ZnO–EA/SnO2–Cl for defect passivation are revealed: 1) formation of ZnO–EA–Pb2+ coherent interlayers at the EA‐terminated ZnO‐perovskite interfaces effectively offsets the I vacancy defects of perovskites; and 2) spontaneous halide exchange between Cl−‐terminated SnO2 and unstable I−‐terminated perovskites enables the formation of FA2Sn(ICl)6‐like coherent interlayers. Thus, the customized termination of ETLs’ surface reduces the halide‐defect‐triggered nonradiative recombination at the buried surfaces of perovskite, enabling the fabricated n–i–p planar modules (6 × 6 cm2) with power conversion efficiencies approaching 18% and elevated stability. These findings provide desirable guidelines for interfacial carrier transport between perovskites and ETLs. |
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| last_indexed | 2024-04-10T16:04:26Z |
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| spelling | doaj.art-1a660d547c4a405eb7d58d71d9bd78a42023-02-10T06:07:27ZengWiley-VCHAdvanced Energy & Sustainability Research2699-94122023-02-0142n/an/a10.1002/aesr.202200150Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite PhotovoltaicsXiaofeng Huang0Yaolin Hou1Qifan Feng2Xiaoying Niu3Yazhou Zhang4Ziheng Tang5Fang Cao6Jun Yin7Jing Li8Nanfeng Zheng9Binghui Wu10State Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaState Key Laboratory for Physical Chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy Materials National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials College of Chemistry and Chemical Engineering Pen-Tung Sah Institute of Micro-Nano Science and Technology Jiujiang Research Institute Xiamen University Xiamen 361005 ChinaAccumulated halide defects on the buried interfaces of halide perovskite layers have exacerbated undesirable nonradiative recombination in the n–i–p perovskite photovoltaics, but are challenging to be passivated—the commonly used passivation molecules at buried interfaces of perovskite layers would be inevitably eroded in the solution processes of perovskite deposition. Regarding the solvent incompatibility, herein, the ZnO–EA/SnO2–Cl electron transfer layers (ETLs) terminated with functional sites (i.e., ethanolamine (EA) ligands on ZnO and Cl− ions on SnO2) to spontaneously heal the buried interfaces of perovskite layers are customized. The specialties of ZnO–EA/SnO2–Cl for defect passivation are revealed: 1) formation of ZnO–EA–Pb2+ coherent interlayers at the EA‐terminated ZnO‐perovskite interfaces effectively offsets the I vacancy defects of perovskites; and 2) spontaneous halide exchange between Cl−‐terminated SnO2 and unstable I−‐terminated perovskites enables the formation of FA2Sn(ICl)6‐like coherent interlayers. Thus, the customized termination of ETLs’ surface reduces the halide‐defect‐triggered nonradiative recombination at the buried surfaces of perovskite, enabling the fabricated n–i–p planar modules (6 × 6 cm2) with power conversion efficiencies approaching 18% and elevated stability. These findings provide desirable guidelines for interfacial carrier transport between perovskites and ETLs.https://doi.org/10.1002/aesr.202200150coherent interlayersdefect healingfunctional-site terminationsperovskite solar modules |
| spellingShingle | Xiaofeng Huang Yaolin Hou Qifan Feng Xiaoying Niu Yazhou Zhang Ziheng Tang Fang Cao Jun Yin Jing Li Nanfeng Zheng Binghui Wu Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics Advanced Energy & Sustainability Research coherent interlayers defect healing functional-site terminations perovskite solar modules |
| title | Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics |
| title_full | Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics |
| title_fullStr | Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics |
| title_full_unstemmed | Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics |
| title_short | Spontaneously Healing Buried Interfaces in n–i–p Halide Perovskite Photovoltaics |
| title_sort | spontaneously healing buried interfaces in n i p halide perovskite photovoltaics |
| topic | coherent interlayers defect healing functional-site terminations perovskite solar modules |
| url | https://doi.org/10.1002/aesr.202200150 |
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