Ryu Jaehoon, Lee Kisu, Yun Juyoung, Yu Haejun, Lee Jungsup, Jang Jyongsik
World Class University (WCU) Program of Chemical Convergence for Energy & Environment (C2E2), School of Chemical and Biological Engineering, Seoul National University, 599 Gwanangno, Gwanakgu, Seoul, 151-742, South Korea.
Small. 2017 Oct;13(38). doi: 10.1002/smll.201701225. Epub 2017 Aug 7.
Paintable carbon electrode-based perovskite solar cells (PSCs) are of particular interest due to their material and fabrication process costs, as well as their moisture stability. However, printing the carbon paste on the perovskite layer limits the quality of the interface between the perovskite layer and carbon electrode. Herein, an attempt to enhance the performance of the paintable carbon-based PSCs is made using a modified solvent dripping method that involves dripping of the carbon nanotubes (CNTs), which is dispersed in chlorobenzene solution. This method allows CNTs to penetrate into both the perovskite film and carbon electrode, facilitating fast hole transport between the two layers. Furthermore, this method is results in increased open circuit voltage (V ) and fill factor (FF), providing better contact at the perovskite/carbon interfaces. The best devices made with CNT dripping show 13.57% power conversion efficiency and hysteresis-free performance.
基于可印刷碳电极的钙钛矿太阳能电池（PSCs）因其材料和制造成本以及湿度稳定性而备受关注。然而，在钙钛矿层上印刷碳糊会限制钙钛矿层与碳电极之间界面的质量。在此，尝试使用一种改进的溶剂滴涂法来提高可印刷碳基PSCs的性能，该方法涉及滴涂分散在氯苯溶液中的碳纳米管（CNTs）。这种方法使碳纳米管能够渗透到钙钛矿薄膜和碳电极中，促进两层之间的快速空穴传输。此外，这种方法还会提高开路电压（V）和填充因子（FF），在钙钛矿/碳界面提供更好的接触。采用碳纳米管滴涂法制备的最佳器件显示出13.57%的功率转换效率和无滞后性能。
