Scalable slot-die coating of high performance perovskite solar cells

James B. Whitaker, Dong Hoe Kim, Bryon W. Larson, Fei Zhang, Joseph J. Berry, Maikel F.A.M. Van Hest, Kai Zhu

Research output: Contribution to journalArticlepeer-review

148 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)2442-2449
Number of pages8
JournalSustainable Energy and Fuels
Issue number11
Publication statusPublished - 2018
Externally publishedYes

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology


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