Scalable slot-die coating of high performance perovskite solar cells

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...

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Bibliographic Details
Published in:Sustainable energy & fuels 2018, Vol.2 (11), p.2442-2449
Main Authors: Whitaker, James B., Kim, Dong Hoe, Larson, Bryon W., Zhang, Fei, Berry, Joseph J., van Hest, Maikel F. A. M., Zhu, Kai
Format: Article
Language:English
Subjects:
Blade coating
Coating effects
Coatings
deposition
MATERIALS SCIENCE
Perovskites
Photovoltaic cells
Photovoltaics
Slot dies
slot-die coating
Solar cells
SOLAR ENERGY
Spin coating
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Summary: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.
ISSN:2398-4902
2398-4902
DOI:10.1039/C8SE00368H