Scalable Slot-Die Coating of High Performance Perovskite Solar Cells

Kai Zhu, James Whitaker, Bryon Larson, Fei Zhang, Joseph Berry, Marinus Van Hest, Donghoe Kim

Research output: Contribution to journalArticlepeer-review

161 Scopus Citations


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 languageAmerican English
Pages (from-to)2442-2449
Number of pages8
JournalSustainable Energy and Fuels
Issue number11
StatePublished - 2018

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

NREL Publication Number

  • NREL/JA-5900-71764


  • deposition
  • perovskites
  • slot-die coating
  • solar cells


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