Research Institute for Solar and Sustainable Energies (RISE), Heeger Center for Advanced Materials (HCAM) , Gwangju Institute of Science and Technology (GIST) , 123 Cheomdan-gwagiro , Buk-gu, Gwangju 61005 , Republic of Korea.
ACS Appl Mater Interfaces. 2018 May 9;10(18):16133-16139. doi: 10.1021/acsami.8b02549. Epub 2018 Apr 25.
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 PbAc and PbCl 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 PbAc. Lastly, a large-area module with an active area of 10 cm was fabricated with a power conversion efficiency of 8.3%.
最近，人们研究了多种印刷工艺来制备用于大规模生产的钙钛矿太阳能电池（PeSCs）。其中，狭缝涂布是一种很有前途的卷对卷处理候选工艺，因为其具有高通量、易于模块图案化和预定量的涂布系统。在这项工作中，我们采用了由 PbAc 和 PbCl 组成的混合铅前体制备 PeSCs 。我们观察到，基于混合铅前驱体制备的狭缝涂布钙钛矿薄膜具有良好的生长和均匀的形态，这很难仅通过使用单一的铅源来实现。因此，使用这种前驱体系统制备的 PeSCs 比仅使用 PbAc 表现出更好的器件性能和重现性。最后，我们制备了一个具有 10cm^2 有效面积的大面积模块，其功率转换效率为 8.3%。
