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240121s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202312170
|2 doi
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|a pubmed25n1224.xml
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|a eng
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| 100 |
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|a Yan, Wenjian
|e verfasserin
|4 aut
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|a Hot-Carrier Cooling Regulation for Mixed Sn-Pb 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
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 02.05.2024
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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 rapid relaxation of hot carriers leads to energy loss in the form of heat and consequently restricts the theoretical efficiency of single-junction solar cells; However, this issue has not received much attention in tin-lead perovskites solar cells. Herein, tin(II) oxalate (SnC2O4) is introduced into tin-lead perovskite precursor solution to regulate hot-carrier cooling dynamics. The addition of SnC2O4 increases the length of carrier diffusion, extends the lifetime of carriers, and simultaneously slows down the cooling rate of carriers. Furthermore, SnC2O4 can bond with uncoordinated Sn2+ and Pb2+ ions to regulate the crystallization of perovskite and enable large grains. The strongly reducing properties of the C2O4 2- can inhibit the oxidation of Sn2+ to Sn4+ and minimize the formation of Sn vacancies in the resulting perovskite films. Additionally, as a substitute for tin(II) fluoride, the introduction of SnC2O4 avoids the carrier transport issues caused by the aggregation of F- ions at the interface. As a result, the SnC2O4-treated Sn-Pb cells show a champion efficiency of 23.36%, as well as 27.56% for the all-perovskite tandem solar cells. Moreover, the SnC2O4-treated devices show excellent long-term stability. This finding is expected to pave the way toward stable and highly efficient all-perovskite tandem solar cells
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|a Journal Article
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|a all‐perovskite tandem solar cells
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|a hot carrier cooling
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|a mixed tin‐lead perovskites
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1 |
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|a Li, Chongwen
|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 Tan, Shuchen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Jiakang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Haokun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xin, Feifei
|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 |
1 |
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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), 18 vom: 03. Mai, Seite e2312170
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:36
|g year:2024
|g number:18
|g day:03
|g month:05
|g pages:e2312170
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202312170
|3 Volltext
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