Liu, Shengzhong (Frank)
KAUST DepartmentAcademic Affairs
KAUST Solar Center (KSC)
Material Science and Engineering
Material Science and Engineering Program
Office of the VP
Organic Electronics and Photovoltaics Group
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/667638
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AbstractEco-friendly printing is important for mass manufacturing of thin-film photovoltaic (PV) devices to preserve human safety and the environment and to reduce energy consumption and capital expense. However, it is challenging for perovskite PVs due to the lack of eco-friendly solvents for ambient fast printing. In this study, we demonstrate for the first time an eco-friendly printing concept for high-performance perovskite solar cells. Both the perovskite and charge transport layers were fabricated from eco-friendly solvents via scalable fast blade coating under ambient conditions. The perovskite dynamic crystallization during blade coating investigated using in situ grazing incidence wide-angle X-ray scattering (GIWAXS) reveals a long sol-gel window prior to phase transformation and a strong interaction between the precursors and the eco-friendly solvents. The insights enable the achievement of high quality coatings for both the perovskite and charge transport layers by controlling film formation during scalable coating. The excellent optoelectronic properties of these coatings translate to a power conversion efficiency of 18.26% for eco-friendly printed solar cells, which is on par with the conventional devices fabricated via spin coating from toxic solvents under inert atmosphere. The eco-friendly printing paradigm presented in this work paves the way for future green and high-throughput fabrication on an industrial scale for perovskite PVs.
CitationChang, X., Fan, Y., Zhao, K., Fang, J., Liu, D., Tang, M.-C., … Huang, W. (2021). Perovskite Solar Cells toward Eco-Friendly Printing. Research, 2021, 1–11. doi:10.34133/2021/9671892
SponsorsThis work was supported by the National Key Research and Development Program of China (2016YFA0202403, 2017YFA0204800), the Key Program Project of the National Natural Science Foundation of China (51933010), the National Natural Science Foundation of China (61974085), the National University Research Fund (GK201802005), the 111 Project (B14041), and the National 1000-Talent-Plan Program (1110010341). CHESS is supported by the NSF Award DMR-1332208.
Except where otherwise noted, this item's license is described as Copyright © 2021 Xiaoming Chang et al. Exclusive Licensee Science and Technology Review Publishing House. Distributed under a Creative Commons Attribution License (CC BY 4.0)