Atomic Layer-Deposited Aluminum Oxide Hinders Iodide Migration and Stabilizes Perovskite Solar Cells

Iodide migration causes degradation of the perovskite solar cells. Here, we observe the direct migration of iodide into the hole-transport layer in a device. We demonstrate that ultrathin room temperature atomic layer-deposited Al2O3 on the perovskite surface very effectively hinders the migration....

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Veröffentlicht in:	Cell reports physical science 2020-07, Vol.1 (7), p.100112, Article 100112
Hauptverfasser:	Das, Chittaranjan, Kot, Malgorzata, Hellmann, Tim, Wittich, Carolin, Mankel, Eric, Zimmermann, Iwan, Schmeisser, Dieter, Khaja Nazeeruddin, Mohammad, Jaegermann, Wolfram
Format:	Artikel
Sprache:	eng
Schlagworte:	aluminum oxide atomic layer deposition iodine migration perovskite solar cells stability X-ray photoelectron spectroscopy
Online-Zugang:	Volltext
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