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Verfasst von:Hofstetter, Yvonne J. [VerfasserIn]   i
 García-Benito, Inés [VerfasserIn]   i
 Paulus, Fabian [VerfasserIn]   i
 Orlandi, Simonetta [VerfasserIn]   i
 Grancini, Giulia [VerfasserIn]   i
 Vaynzof, Yana [VerfasserIn]   i
Titel:Vacuum-induced degradation of 2D perovskites
Verf.angabe:Yvonne J. Hofstetter, Inés García-Benito, Fabian Paulus, Simonetta Orlandi, Giulia Grancini and Yana Vaynzof
E-Jahr:2020
Jahr:13 February 2020
Fussnoten:Gesehen am 23.03.2020
Titel Quelle:Enthalten in: Frontiers in Chemistry
Ort Quelle:Lausanne : Frontiers Media, 2013
Jahr Quelle:2020
Band/Heft Quelle:8(2020) Artikel-Nummer 66, 10 Seiten
ISSN Quelle:2296-2646
Abstract:Two-dimensional (2D) hybrid organic-inorganic perovskites have recently attracted the attention of the scientific community due to their exciting optical and electronic properties as well as enhanced stability upon exposure to environmental factors. In this work, we investigate 2D perovskite layers with a range of organic cations and report on the Achilles heel of these materials - their significant degradation upon exposure to vacuum. We demonstrate that vacuum exposure induces the formation of a metallic lead species, accompanied by a loss of the organic cation from the perovskite. We investigate the dynamics of this reaction, as well as the influence of other factors, such as X-ray irradiation. Furthermore, we characterize the effect of degradation on the microstructure of the 2D layers. Our study highlights that despite earlier reports, 2D perovskites may exhibit instabilities, the chemistry of which should be identified and investigated in order to develop suitable mitigation strategies.
DOI:doi:10.3389/fchem.2020.00066
URL:Kostenfrei: Volltext ; Verlag: https://doi.org/10.3389/fchem.2020.00066
 Kostenfrei: Volltext: https://www.frontiersin.org/articles/10.3389/fchem.2020.00066/full
 DOI: https://doi.org/10.3389/fchem.2020.00066
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:2D perovskites
 Cations
 stability
 Vacuum
 X-ray photoemission spectroscopy
K10plus-PPN:1693150840
Verknüpfungen:→ Zeitschrift
 
 
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