Ferrocene Derivatives for Improving the Efficiency and Stability of MA‐Free Perovskite Solar Cells from the Perspective of Inhibiting Ion Migration and Releasing Film Stress

Ferrocene Derivatives for Improving the Efficiency and Stability of MA‐Free Perovskite Solar Cells from the Perspective of Inhibiting Ion Migration and Releasing Film Stress

Abstract Further improvement of the performance and stability of inverted perovskite solar cells (PSCs) is necessary for commercialization. Here, ferrocene derivative dibenzoylferrocene (DBzFe) is used as an additive to enhance the performance and stability of MA‐ and Br‐ free PSCs. The results show...

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Bibliographic Details
Main Authors: Huan Bi, Jiaqi Liu, Zheng Zhang, Liang Wang, Gaurav Kapil, Yuyao Wei, Ajay Kumar Baranwal, Shahrir Razey Sahamir, Yoshitaka Sanehira, Dandan Wang, Yongge Yang, Takeshi Kitamura, Raminta Beresneviciute, Saulius Grigalevicius, Qing Shen, Shuzi Hayase
Format: Article
Language:English
Published: Wiley 2023-12-01
Series:Advanced Science
Subjects:
ferrocene derivatives
ion migration
MA‐free perovskite solar cells
monomolecular layer
stress relief
Online Access:https://doi.org/10.1002/advs.202304790
Description
Summary:Abstract Further improvement of the performance and stability of inverted perovskite solar cells (PSCs) is necessary for commercialization. Here, ferrocene derivative dibenzoylferrocene (DBzFe) is used as an additive to enhance the performance and stability of MA‐ and Br‐ free PSCs. The results show that the introduction of DBzFe not only passivates the defects in the film but also inhibits the ion migration in the film. The final device achieves a power conversion efficiency (PCE) of 23.53%, which is one of the highest efficiencies currently based on self‐assembled monolayers (SAMs). Moreover, it maintains more than 96.4% of the original efficiency when running continuously for 400 h at the maximum power point.
ISSN:2198-3844

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