High-performance perovskite single-junction and textured perovskite/silicon tandem solar cells via slot-die-coating

Anand S. Subbiah*, Furkan H. Isikgor, Calvyn T. Howells, Michele De Bastiani, Jiang Liu, Erkan Aydin, Francesco Furlan, Thomas G. Allen, Fuzong Xu, Shynggys Zhumagali, Sjoerd Hoogland, Edward H. Sargent, Iain McCulloch, Stefaan De Wolf

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

129 Scopus citations


In this work, we report perovskite solar cells in the planar p-i-n configuration based on single-step, anti-solvent-free, low-temperature (70 °C) slot-die-coated methylammonium lead tri-iodide (MAPbI3). The devices are fabricated on hydrophobic poly(triarylamine) (PTAA) surfaces, using key strategies such as solvent engineering, enhanced ink-substrate dynamics, and surface passivation, enabling a power conversion efficiency (PCE) of 21.8%. We also adapted the technique to achieve the first slot-die-coated perovskite/silicon monolithic 2-terminal tandems, achieving a PCE of 23.8% utilizing a textured silicon bottom cell.

Original languageEnglish (US)
Pages (from-to)3034-3040
Number of pages7
JournalACS Energy Letters
Issue number9
StatePublished - Sep 11 2020

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Materials Chemistry


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