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From groundwork to efficient solar cells: on the importance of the substrate material in co‐evaporated perovskite solar cells

Abzieher, Tobias ; Feeney, Thomas ; Schackmar, Fabian ; Donie, Yidenekachew J. ; Hossain, Ihteaz M. ; Schwenzer, Jonas A. ; Hellmann, Tim ; Mayer, Thomas ; Powalla, Michael ; Paetzold, Ulrich W. (2021)
From groundwork to efficient solar cells: on the importance of the substrate material in co‐evaporated perovskite solar cells.
In: Advanced Functional Materials, 31 (42)
doi: 10.1002/adfm.202104482
Article, Bibliographie

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Abstract

Vacuum‐based deposition of optoelectronic thin films has a long‐standing history. However, in the field of perovskite‐based photovoltaics, these techniques are still not as advanced as their solution‐based counterparts. Although high‐efficiency vacuum‐based perovskite solar cells reaching power conversion efficiencies (PCEs) above 20% are reported, the number of studies on the underlying physical and chemical mechanism of the co‐evaporation of lead iodide and methylammonium iodide is low. In this study, the impact of one of the most crucial process parameters in vacuum processes — the substrate material — is studied. It is shown that not only the morphology of the co‐evaporated perovskite thin films is significantly influenced by the surface polarity of the substrate material, but also the incorporation of the organic compound into the perovskite framework. Based on these studies, a selection guide for suitable substrate materials for efficient co‐evaporated perovskite thin films is derived. This selection guide points out that the organic vacuum‐processable hole transport material 2,2″,7,7″‐tetra(N,N‐di‐p‐tolyl)amino‐9,9‐spirobifluorene is an ideal candidate for the fabrication of efficient all‐evaporated perovskite solar cells, demonstrating PCEs above 19%. Furthermore, building on the insights into the formation of the perovskite thin films on different substrate materials, a basic crystallization model for co‐evaporated perovskite thin films is suggested.

Item Type: Article
Erschienen: 2021
Creators: Abzieher, Tobias ; Feeney, Thomas ; Schackmar, Fabian ; Donie, Yidenekachew J. ; Hossain, Ihteaz M. ; Schwenzer, Jonas A. ; Hellmann, Tim ; Mayer, Thomas ; Powalla, Michael ; Paetzold, Ulrich W.
Type of entry: Bibliographie
Title: From groundwork to efficient solar cells: on the importance of the substrate material in co‐evaporated perovskite solar cells
Language: English
Date: 2021
Place of Publication: Weinheim
Publisher: Wiley-VCH
Journal or Publication Title: Advanced Functional Materials
Volume of the journal: 31
Issue Number: 42
Collation: 19 Seiten
DOI: 10.1002/adfm.202104482
Corresponding Links:
Abstract:

Vacuum‐based deposition of optoelectronic thin films has a long‐standing history. However, in the field of perovskite‐based photovoltaics, these techniques are still not as advanced as their solution‐based counterparts. Although high‐efficiency vacuum‐based perovskite solar cells reaching power conversion efficiencies (PCEs) above 20% are reported, the number of studies on the underlying physical and chemical mechanism of the co‐evaporation of lead iodide and methylammonium iodide is low. In this study, the impact of one of the most crucial process parameters in vacuum processes — the substrate material — is studied. It is shown that not only the morphology of the co‐evaporated perovskite thin films is significantly influenced by the surface polarity of the substrate material, but also the incorporation of the organic compound into the perovskite framework. Based on these studies, a selection guide for suitable substrate materials for efficient co‐evaporated perovskite thin films is derived. This selection guide points out that the organic vacuum‐processable hole transport material 2,2″,7,7″‐tetra(N,N‐di‐p‐tolyl)amino‐9,9‐spirobifluorene is an ideal candidate for the fabrication of efficient all‐evaporated perovskite solar cells, demonstrating PCEs above 19%. Furthermore, building on the insights into the formation of the perovskite thin films on different substrate materials, a basic crystallization model for co‐evaporated perovskite thin films is suggested.

Uncontrolled Keywords: crystallization dynamics, perovskite solar cells, photovoltaics, substrate materials, thermal co‐evaporation
Identification Number: Artikel-ID: 2104482
Additional Information:

Correction available: https://doi.org/10.1002/adfm.202201762

Classification DDC: 600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Surface Science
Date Deposited: 14 Feb 2024 06:54
Last Modified: 14 Feb 2024 06:54
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