Slot-die coated perovskite films using mixed lead precursors for highly reproducible and large-area solar cells

Donmin Lee, Yen Sook Jung, Youn Jung Heo, Sehyun Lee, Kyeongil Hwang, Ye Jin Jeon, Jueng Eun Kim, Jiyoon Park, Gun Young Jung, Dong Yu Kim

Research output: Contribution to journalArticleResearchpeer-review

40 Citations (Scopus)

Abstract

Recently, many kinds of printing processes have been studied to fabricate perovskite solar cells (PeSCs) for mass production. Among them, slot-die coating is a promising candidate for roll-to-roll processing because of high-throughput, easy module patterning, and a premetered coating system. In this work, we employed mixed lead precursors consisting of PbAc2 and PbCl2 to fabricate PeSCs via slot-die coating. We observed that slot-die-coated perovskite films based on the mixed lead precursors exhibited well-grown and uniform morphology, which was hard to achieve by using only a single lead source. Consequently, PeSCs made with this precursor system showed improved device performance and reproducibility over single PbAc2. Lastly, a large-area module with an active area of 10 cm2 was fabricated with a power conversion efficiency of 8.3%.

Original languageEnglish
Pages (from-to)16133-16139
Number of pages7
JournalACS Applied Materials & Interfaces
Volume10
Issue number18
DOIs
Publication statusPublished - 9 May 2018
Externally publishedYes

Keywords

  • gas-blowing process
  • mixed lead precursors
  • perovskite solar cells
  • scalable printing process
  • slot-die coating

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