Wang Yumeng, Qu Hao, Zhang Chunmei, Chen Qiang
Lab of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing, 102600, China.
Sci Rep. 2019 Jan 24;9(1):459. doi: 10.1038/s41598-018-36685-6.
Herein we report a strategy of rapid oxidation of the hole transport layer (HTL) in perovskite solar cells by using oxygen/argon mixture plasma. This strategy offers a promising approach for simple manufacturing, mass production, and industrial applications. Compared to the conventional process of overnight oxidation, only ~10 s of oxygen/argon mixture plasma treatment is enough for the solar cell devices with FTO/ETL/perovskite/HTL/Au structure demonstrating a high power conversion efficiency. It is found that the high concentration of atomic oxygen generated in plasma oxidizing the HTL improves the conductivity and mobility, and therefore the process time is considerably shortened. This novel approach is compatible with continuous mass production, and it is suitable for the fabrication of large-area perovskite solar cells in the future.
在此，我们报告了一种通过使用氧/氩混合等离子体快速氧化钙钛矿太阳能电池中空穴传输层（HTL）的策略。该策略为简单制造、大规模生产和工业应用提供了一种有前景的方法。与传统的过夜氧化工艺相比，对于具有FTO/ETL/钙钛矿/HTL/Au结构的太阳能电池器件，仅约10秒的氧/氩混合等离子体处理就足以实现高功率转换效率。研究发现，等离子体氧化HTL过程中产生的高浓度原子氧提高了电导率和迁移率，因此显著缩短了工艺时间。这种新方法与连续大规模生产兼容，适用于未来大面积钙钛矿太阳能电池的制造。
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