Scalable slot-die coating of high performance perovskite solar cells. Issue 11 (14th August 2018)

• Record Type: Journal Article
• Authors: Whitaker, James B.; Kim, Dong Hoe; Larson, Bryon W.; Zhang, Fei; Berry, Joseph J.; van Hest, Maikel F. A. M.; Zhu, Kai
• Is Part Of: Sustainable energy & fuels. Volume 2:Issue 11(2018)
• Page Start: 2442
• Page End: 2449
• Publication Date: 2018-08-14
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/c8se00368h
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : 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. Abstract : 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.