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241013s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202410298
|2 doi
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|a pubmed25n1261.xml
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|a (DE-627)NLM378804871
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|a DE-627
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|a eng
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|a Cheng, Jiahui
|e verfasserin
|4 aut
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|a Enhanced Electric Field Minimizing Quasi-Fermi Level Splitting Deficit for High-Performance Tin-Lead Perovskite Solar Cells
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 28.11.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a The quasi-Fermi level splitting (QFLS) deficit caused by the non-radiative recombination at the interface of perovskite/electron transport layer (ETL) can lead to severe open-circuit voltage (VOC) loss and thus decreases the efficiency of perovskite solar cells (PSCs), however, has received limited attention in inverted tin-lead PSCs. Herein, the strategy of constructing an extra-electric field is presented by introducing ferroelectric polymer dipoles (FPD)-β-poly(1,1-difluoroethylene)-to suppress the QFLS deficit. The directional polarization of FPD can enhance the built-in electric field (BEF) and thus promote the charge transfer at the perovskite/ETL interface, which effectively suppresses non-radiative recombination. Furthermore, the incorporation of FPD facilitates high-quality crystallization of perovskite and reduces the surface energetic disorder. Therefore, the QFLS deficit in the perovskite/ETL half-stacked device is reduced from 62 to 27 meV after incorporating FPD, and the optimized device achieves an efficiency of 23.44% with a high VOC of 0.88 V. Additionally, the addition of FPD increases the activation energy for ion migration, which can reduce the effect of ion migration on the long-term stability of the device. Consequently, the FPD-incorporated device retains 88% of the initial efficiency after 1100 h of continuous illumination at the maximum power point (MPP)
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|a Journal Article
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|a electric field
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|a passivation
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|a quasi‐Fermi level splitting
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| 650 |
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|a solar cells
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|a tin‐lead perovskite
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| 700 |
1 |
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|a Cao, Huijie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Shuming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shao, Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Wenjian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Cheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yue, Fang
|e verfasserin
|4 aut
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| 700 |
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|a Zhou, Zhongmin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 48 vom: 12. Nov., Seite e2410298
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:48
|g day:12
|g month:11
|g pages:e2410298
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|u http://dx.doi.org/10.1002/adma.202410298
|3 Volltext
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