Ferrocene as a highly volatile solid additive in non-fullerene organic solar cells with enhanced photovoltaic performance

Linglong Ye, Yunhao Cai*, Chao Li, Lei Zhu, Jinqiu Xu, Kangkang Weng, Kangning Zhang, Miaofei Huang, Min Zeng, Tengfei Li, Erjun Zhou, Songting Tan, Xiaotao Hao, Yuanping Yi, Feng Liu, Zhaohui Wang, Xiaowei Zhan, Yanming Sun*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

115 引用 (Scopus)

摘要

At present, most of the top-performing organic solar cells (OSCs) are processed with high boiling point solvent additives, which usually have a negative effect on the device stability. To overcome this conundrum, we herein introduce a commercially available organic transition metal compound, ferrocene, as a highly volatile solid additive in OSCs. The utilization of ferrocene led to enhanced power conversion efficiency (PCE) and photostability of PM6:Y6 based OSCs in comparison with the devices processed with a traditional solvent additive. Systematic analysis revealed that the treatment with ferrocene can effectively increase the molecular crystallinity and thus leads to improved charge transport, which accounts for the achieved higher photovoltaic performance in the corresponding OSCs. Moreover, ferrocene was found to exhibit general applicability in five other bulk-heterojunction systems. This work not only demonstrates a cost effective and highly volatile solid additive, but also opens a new possibility toward further improvement of the PCE and stability of OSCs.

源语言英语
页(从-至)5117-5125
页数9
期刊Energy and Environmental Science
13
12
DOI
出版状态已出版 - 12月 2020
已对外发布

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Ye, L., Cai, Y., Li, C., Zhu, L., Xu, J., Weng, K., Zhang, K., Huang, M., Zeng, M., Li, T., Zhou, E., Tan, S., Hao, X., Yi, Y., Liu, F., Wang, Z., Zhan, X., & Sun, Y. (2020). Ferrocene as a highly volatile solid additive in non-fullerene organic solar cells with enhanced photovoltaic performance. Energy and Environmental Science, 13(12), 5117-5125. https://doi.org/10.1039/d0ee02426k