Fangyuan Ye, Shuo Zhang, Jonathan Warby, Jiawei Wu, Emilio Gutierrez-Partida, Felix Lang, Sahil Shah, Elifnaz Saglamkaya, Bowen Sun, Fengshuo Zu, Safa Shoaee, Haifeng Wang, Burkhard Stiller, Dieter Neher, Wei-Hong Zhu, Martin Stolterfoht, Yongzhen Wu
- Inverted perovskite solar cells still suffer from significant non-radiative recombination losses at the perovskite surface and across the perovskite/C-60 interface, limiting the future development of perovskite-based single- and multi-junction photovoltaics. Therefore, more effective inter- or transport layers are urgently required. To tackle these recombination losses, we introduce ortho-carborane as an interlayer material that has a spherical molecular structure and a three-dimensional aromaticity. Based on a variety of experimental techniques, we show that ortho-carborane decorated with phenylamino groups effectively passivates the perovskite surface and essentially eliminates the non-radiative recombination loss across the perovskite/C-60 interface with high thermal stability. We further demonstrate the potential of carborane as an electron transport material, facilitating electron extraction while blocking holes from the interface. The resulting inverted perovskite solar cells deliver a power conversion efficiency of over 23%Inverted perovskite solar cells still suffer from significant non-radiative recombination losses at the perovskite surface and across the perovskite/C-60 interface, limiting the future development of perovskite-based single- and multi-junction photovoltaics. Therefore, more effective inter- or transport layers are urgently required. To tackle these recombination losses, we introduce ortho-carborane as an interlayer material that has a spherical molecular structure and a three-dimensional aromaticity. Based on a variety of experimental techniques, we show that ortho-carborane decorated with phenylamino groups effectively passivates the perovskite surface and essentially eliminates the non-radiative recombination loss across the perovskite/C-60 interface with high thermal stability. We further demonstrate the potential of carborane as an electron transport material, facilitating electron extraction while blocking holes from the interface. The resulting inverted perovskite solar cells deliver a power conversion efficiency of over 23% with a low non-radiative voltage loss of 110mV, and retain >97% of the initial efficiency after 400h of maximum power point tracking. Overall, the designed carborane based interlayer simultaneously enables passivation, electron-transport and hole-blocking and paves the way toward more efficient and stable perovskite solar cells. Effective transport layers are essential to suppress non-radiative recombination losses. Here, the authors introduce phenylamino-functionalized ortho-carborane as an interfacial layer, and realise inverted perovskite solar cells with efficiency of over 23% and operational stability of T97=400h.…
MetadatenAuthor details: | Fangyuan YeORCiD, Shuo Zhang, Jonathan WarbyORCiDGND, Jiawei Wu, Emilio Gutierrez-PartidaGND, Felix Lang, Sahil ShahORCiDGND, Elifnaz SaglamkayaORCiD, Bowen SunORCiDGND, Fengshuo Zu, Safa ShoaeeORCiDGND, Haifeng Wang, Burkhard Stiller, Dieter NeherORCiDGND, Wei-Hong ZhuORCiD, Martin StolterfohtORCiDGND, Yongzhen WuORCiD |
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DOI: | https://doi.org/10.1038/s41467-022-34203-x |
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ISSN: | 2041-1723 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/36460635 |
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Title of parent work (English): | Nature Communications |
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Publisher: | Nature Publishing Group |
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Place of publishing: | London |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2022/12/02 |
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Publication year: | 2022 |
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Release date: | 2023/10/11 |
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Volume: | 13 |
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Issue: | 1 |
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Article number: | 7454 |
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Number of pages: | 12 |
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Funding institution: | National Natural Science Foundation of China [22179037]; Shanghai; Municipal Science and Technology Major Project [2018SHZDZX03,; 21JC1401700]; Programmer of Introducing Talents of Discipline to; Universities [B16017]; Fundamental Research Funds for the Central; Universities; graduate school of the University of Potsdam;; Helmholtz-Zentrum Berlin; Deutsche Forschungsgemeinschaft (DFG, German; Research Foundation) [SPP 2196, 423749265-SURPRISE, 424709669-HIPSTER,; SFB951, 182087777, 491466077, 498155101]; Federal Ministry for Economic; Affairs and Energy [03EE1017C] |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
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Peer review: | Referiert |
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Publishing method: | Open Access / Gold Open-Access |
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| DOAJ gelistet |
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License (German): | CC-BY - Namensnennung 4.0 International |
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