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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201903721
|2 doi
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|a pubmed24n1003.xml
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|a (DE-627)NLM301048975
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|a (NLM)31495977
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Meng, Xiangyue
|e verfasserin
|4 aut
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|a Highly Stable and Efficient FASnI3 -Based Perovskite Solar Cells by Introducing Hydrogen Bonding
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|c 2019
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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
|b cr
|2 rdacarrier
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|a Date Completed 16.10.2019
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Tin-based perovskites with narrow bandgaps and high charge-carrier mobilities are promising candidates for the preparation of efficient lead-free perovskite solar cells (PSCs). However, the crystalline rate of tin-based perovskites is much faster, leading to abundant trap states and much lower open-circuit voltage (Voc ). Here, hydrogen bonding is introduced to retard the crystalline rate of the FASnI3 perovskite. By adding poly(vinyl alcohol) (PVA), the OH…I- hydrogen bonding interactions between PVA and FASnI3 have the effects of introducing nucleation sites, slowing down the crystal growth, directing the crystal orientation, reducing the trap states, and suppressing the migration of the iodide ions. In the presence of the PVA additive, the FASnI3 -PVA PSCs attain higher power conversion efficiency of 8.9% under a reverse scan with significantly improved Voc from 0.55 to 0.63 V, which is one of the highest Voc values for FASnI3 -based PSCs. More importantly, the FASnI3 -PVA PSCs exhibit striking long-term stability, with no decay in efficiency after 400 h of operation at the maximum power point. This approach, which makes use of the OH…I- hydrogen bonding interactions between PVA and FASnI3 , is generally applicable for improving the efficiency and stability of the FASnI3 -based PSCs
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|a Journal Article
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|a hydrogen bonding
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|a lead free
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|a perovskite solar cells
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|a stability
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|a tin
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|a Lin, Jianbo
|e verfasserin
|4 aut
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|a Liu, Xiao
|e verfasserin
|4 aut
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|a He, Xin
|e verfasserin
|4 aut
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|a Wang, Yong
|e verfasserin
|4 aut
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|a Noda, Takeshi
|e verfasserin
|4 aut
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|a Wu, Tianhao
|e verfasserin
|4 aut
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|a Yang, Xudong
|e verfasserin
|4 aut
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|a Han, Liyuan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 42 vom: 22. Okt., Seite e1903721
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:42
|g day:22
|g month:10
|g pages:e1903721
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|u http://dx.doi.org/10.1002/adma.201903721
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