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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201808357
|2 doi
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|a pubmed25n0993.xml
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|a (DE-627)NLM298233479
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|a (NLM)31206857
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Wang, Kai
|e verfasserin
|4 aut
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|a Kinetic Stabilization of the Sol-Gel State in Perovskites Enables Facile Processing of High-Efficiency Solar Cells
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|c 2019
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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
|b cr
|2 rdacarrier
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|a Date Revised 30.09.2020
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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 Perovskite solar cells increasingly feature mixed-halide mixed-cation compounds (FA1- x - y MAx Csy PbI3- z Brz ) as photovoltaic absorbers, as they enable easier processing and improved stability. Here, the underlying reasons for ease of processing are revealed. It is found that halide and cation engineering leads to a systematic widening of the anti-solvent processing window for the fabrication of high-quality films and efficient solar cells. This window widens from seconds, in the case of single cation/halide systems (e.g., MAPbI3 , FAPbI3 , and FAPbBr3 ), to several minutes for mixed systems. In situ X-ray diffraction studies reveal that the processing window is closely related to the crystallization of the disordered sol-gel and to the number of crystalline byproducts; the processing window therefore depends directly on the precise cation/halide composition. Moreover, anti-solvent dripping is shown to promote the desired perovskite phase with careful formulation. The processing window of perovskite solar cells, as defined by the latest time the anti-solvent drip yields efficient solar cells, broadened with the increasing complexity of cation/halide content. This behavior is ascribed to kinetic stabilization of sol-gel state through cation/halide engineering. This provides guidelines for designing new formulations, aimed at formation of the perovskite phase, ultimately resulting in high-efficiency perovskite solar cells produced with ease and with high reproducibility
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|a Journal Article
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|a anti-solvent drip
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|a hybrid perovskite solar cells
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|a in situ GIWAXS
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|a kinetic stabilization
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|a mixed-cation mixed-halide perovskites
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|a Tang, Ming-Chun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dang, Hoang X
|e verfasserin
|4 aut
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1 |
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|a Munir, Rahim
|e verfasserin
|4 aut
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1 |
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|a Barrit, Dounya
|e verfasserin
|4 aut
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| 700 |
1 |
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|a De Bastiani, Michele
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Aydin, Erkan
|e verfasserin
|4 aut
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1 |
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|a Smilgies, Detlef-M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a De Wolf, Stefaan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Amassian, Aram
|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 31(2019), 32 vom: 06. Aug., Seite e1808357
|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:32
|g day:06
|g month:08
|g pages:e1808357
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|u http://dx.doi.org/10.1002/adma.201808357
|3 Volltext
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