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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201806661
|2 doi
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|a eng
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| 100 |
1 |
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|a Röhm, Holger
|e verfasserin
|4 aut
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|a Ferroelectric Properties of Perovskite Thin Films and Their Implications for Solar Energy Conversion
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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
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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 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Whether or not methylammonium lead iodide (MAPbI3 ) is a ferroelectric semiconductor has caused controversy in the literature, fueled by many misunderstandings and imprecise definitions. Correlating recent literature reports and generic crystal properties with the authors' experimental evidence, the authors show that MAPbI3 thin-films are indeed semiconducting ferroelectrics and exhibit spontaneous polarization upon transition from the cubic high-temperature phase to the tetragonal phase at room temperature. The polarization is predominantly oriented in-plane and is organized in characteristic domains as probed with piezoresponse force microscopy. Drift-diffusion simulations based on experimental patterns of polarized domains indicate a reduction of the Shockley-Read-Hall recombination of charge carriers within the perovskite grains due to the ferroelectric built-in field and allow reproduction of the electrical solar cell properties
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|a Journal Article
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|a Review
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|a ferroelectric domains
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|a perovskite solar cells
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|a piezoresponse force microscopy
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|a Leonhard, Tobias
|e verfasserin
|4 aut
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|a Schulz, Alexander D
|e verfasserin
|4 aut
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| 700 |
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|a Wagner, Susanne
|e verfasserin
|4 aut
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|a Hoffmann, Michael J
|e verfasserin
|4 aut
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|a Colsmann, Alexander
|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), 26 vom: 01. Juni, Seite e1806661
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|x 1521-4095
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|g volume:31
|g year:2019
|g number:26
|g day:01
|g month:06
|g pages:e1806661
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|u http://dx.doi.org/10.1002/adma.201806661
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