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 language | English |
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Pages (from-to) | 16133-16139 |
Number of pages | 7 |
Journal | ACS Applied Materials & Interfaces |
Volume | 10 |
Issue number | 18 |
DOIs | |
Publication status | Published - 9 May 2018 |
Externally published | Yes |
Keywords
- gas-blowing process
- mixed lead precursors
- perovskite solar cells
- scalable printing process
- slot-die coating