Infiltration of CsPbI 3 :EuI 2 Perovskites into TiO 2 Spongy Layers Deposited by gig-lox Sputtering Processes.
In: Solar, Jg. 3 (2023-09-01), Heft 3, S. 347-361
academicJournal
Zugriff:
Perovskite solar cells have become a popular alternative to traditional silicon solar cells due to their potential to provide high-efficiency, low-cost, and lightweight solar energy harvesting solutions. However, the multilayer architecture of perovskite solar cells demands careful investigation of the interaction and interfacing between the various layers, as they play a crucial role in determining the overall performance of the cell. In this context, the present work aims at analyzing the coupling between a spongy transparent electron-transporting layer (ETL) and perovskite in a formulation CsPbI 3 :EuI 2 . The ETL used in this work is a transparent mesoporous TiO 2 layer called "gig-lox" (grazing incidence angle geometry–local oxidation), which has been optimized to boost the interfacing with the perovskite for achieving a highly interconnected blend of materials. The gig-lox TiO 2 ETL shows a high surface wettability with respect to the perovskite solution, especially after pre-annealing at 500 ° C, and this enables the perovskite material to deeply infiltrate throughout it. The surface wettability of the gig-lox TiO 2 has been estimated by contact angle measurements, while the deep infiltration of the perovskite material has been demonstrated through X-ray diffraction and transmission electron microscopy analyses. Thanks to the achieved deep infiltration, the photo-generated charge injection from the perovskite into the mesoporous oxide is enhanced with respect to the use of a planar compact oxide, as shown by the photoluminescence measurements. The mainstay of the approach resides in the ETL that is deposited by a solvent-free sputtering method and is up-scalable for high industrial throughput. [ABSTRACT FROM AUTHOR]
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Titel: |
Infiltration of CsPbI 3 :EuI 2 Perovskites into TiO 2 Spongy Layers Deposited by gig-lox Sputtering Processes.
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Autor/in / Beteiligte Person: | Spampinato, Carlo ; La Magna, Paola ; Valastro, Salvatore ; Smecca, Emanuele ; Arena, Valentina ; Bongiorno, Corrado ; Mannino, Giovanni ; Fazio, Enza ; Corsaro, Carmelo ; Neri, Fortunato ; Alberti, Alessandra |
Zeitschrift: | Solar, Jg. 3 (2023-09-01), Heft 3, S. 347-361 |
Veröffentlichung: | 2023 |
Medientyp: | academicJournal |
ISSN: | 2673-9941 (print) |
DOI: | 10.3390/solar3030020 |
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