Wang Liang, Miao Qingqing, Wang Dandan, Zhang Zheng, Chen Mengmeng, Bi Huan, Liu Jiaqi, Baranwal Ajay Kumar, Kapil Gaurav, Sanehira Yoshitaka, Kitamura Takeshi, Shen Qing, Ma Tingli, Hayase Shuzi
info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585, Japan.
Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
Small. 2024 Nov;20(46):e2404026. doi: 10.1002/smll.202404026. Epub 2024 Aug 9.
The exploration of nontoxic Sn-based perovskites as a viable alternative to their toxic Pb-based counterparts has garnered increased attention. However, the power conversion efficiency of Sn-based perovskite solar cells lags significantly behind their Pb-based counterparts. This study presents a ternary passivation strategy aimed at enhancing device performance, employing [6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM), poly(3-hexylthiophene) (P3HT), and indene C60 bisadduct (ICBA). These components play crucial roles in managing energy levels and enhancing carrier transportation, respectively. The results reveal that the introduction of the ternary system leads to improvements in carrier collection and transportation, accompanied by a suppression of the recombination process. Ultimately, the champion device achieves a remarkable performance with an efficiency of 14.64%. Notably, the device also exhibits robust operational and long-term stored stability.
探索无毒的锡基钙钛矿作为有毒铅基钙钛矿的可行替代品已受到越来越多的关注。然而，锡基钙钛矿太阳能电池的功率转换效率明显落后于铅基钙钛矿太阳能电池。本研究提出了一种旨在提高器件性能的三元钝化策略，采用了[6,6]-苯基-C61-丁酸甲酯（PCBM）、聚（3-己基噻吩）（P3HT）和茚C60双加合物（ICBA）。这些组分分别在管理能级和增强载流子传输方面发挥着关键作用。结果表明，三元体系的引入导致载流子收集和传输得到改善，同时抑制了复合过程。最终，最佳器件实现了14.64%的卓越效率。值得注意的是，该器件还表现出强大的运行稳定性和长期存储稳定性。
