Roll-to-Roll Processes for the Fabrication of Perovskite Solar Cells under Ambient Conditions,Solar RRL

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Roll-to-Roll Processes for the Fabrication of Perovskite Solar Cells under Ambient Conditions
Solar RRL ( IF 6.0 ) Pub Date : 2021-08-02 , DOI: 10.1002/solr.202100341
Juan F. Benitez-Rodriguez _{1,

2} , Dehong Chen ₁ , Mei Gao ₂ , Rachel A. Caruso ₁

Affiliation

Recent progress in the engineering and fabrication optimization of hybrid perovskite solar cells (PSCs) has led to power conversion efficiencies (PCEs) of up to 25.2%. The properties of perovskite solutions enable low-temperature, scalable coating methods that are compatible with the roll-to-roll (R2R) fabrication process. Despite this, there is still a significant lag in efficiency in large-area devices fabricated using the R2R process, which achieves PCEs of 50% of the record value. Direct translation of research results to large-scale commercially acceptable levels is crucial for commercialization, along with long-term durability and processing reproducibility of the different device layers. Herein, the recent progress of several coating and R2R processes for the formation of PSC layers, detailing the key variables involved in the process, with an emphasis on the nucleation and crystallization of the perovskite film, is considered. The barriers and challenges in producing high-quality perovskite films and improving the stability of devices are discussed. In addition, stability protocols for PSCs are discussed as they are key to unifying PSC stability and performance assessment, which is required to gain a better understanding of the different compounds and layers used in cell fabrication and the approaches necessary for their optimization.

中文翻译：

在环境条件下制造钙钛矿太阳能电池的卷对卷工艺

混合钙钛矿太阳能电池 (PSC) 的工程和制造优化的最新进展已导致功率转换效率 (PCE) 高达 25.2%。钙钛矿解决方案的特性使低温、可扩展的涂层方法与卷对卷 (R2R) 制造工艺兼容。尽管如此，使用 R2R 工艺制造的大面积器件的效率仍然存在显着滞后，该工艺实现了 50% 的记录值的 PCE。将研究结果直接转化为大规模商业上可接受的水平对于商业化以及不同器件层的长期耐用性和加工再现性至关重要。在此，几种用于形成 PSC 层的涂层和 R2R 工艺的最新进展，详细介绍了该工艺中涉及的关键变量，重点考虑钙钛矿薄膜的成核和结晶。讨论了生产高质量钙钛矿薄膜和提高器件稳定性的障碍和挑战。此外，还讨论了 PSC 的稳定性协议，因为它们是统一 PSC 稳定性和性能评估的关键，这是更好地了解细胞制造中使用的不同化合物和层及其优化所需的方法所必需的。

更新日期：2021-09-10

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