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Issue 11, 2018
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Scalable slot-die coating of high performance perovskite solar cells

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Perovskite based photovoltaic devices hold the promise to greatly reduce the cost of solar energy production; however, this potential depends greatly on the ability to deposit perovskite active layers using large scale deposition methods such as slot-die coating without sacrificing efficiency. Using a perovskite precursor ink with long wet-film processing window, we demonstrate efficient perovskite solar cells based on slot-die coated perovskite layer. We found almost no difference in the photophysical and structural details of perovskite films that were deposited by spin coating to films deposited by slot-die coating. We explored various slot-die coating parameters to determine their effect on the performance of the device metrics. In addition to slot-die coating, we demonstrate the versatility of this wide wet-film processing window by fabricating perovskite solar cells with active layers deposited by spin coating, blade coating, and spray coating that all exhibited similar performance.

Graphical abstract: Scalable slot-die coating of high performance perovskite solar cells

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Publication details

The article was received on 23 Jul 2018, accepted on 03 Aug 2018 and first published on 03 Aug 2018

Article type: Paper
DOI: 10.1039/C8SE00368H
Sustainable Energy Fuels, 2018,2, 2442-2449

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    Scalable slot-die coating of high performance perovskite solar cells

    J. B. Whitaker, D. H. Kim, Bryon W. Larson, F. Zhang, J. J. Berry, M. F. A. M. van Hest and K. Zhu, Sustainable Energy Fuels, 2018, 2, 2442
    DOI: 10.1039/C8SE00368H

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