Multifunctional Additive CdAc2 for Efficient Perovskite-Based Solar Cells

Multifunctional Additive CdAc2 for Efficient Perovskite-Based Solar Cells

© 2023 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 32 vom: 25. Aug., Seite e2211806
1. Verfasser: Ren, Ningyu (VerfasserIn)
Weitere Verfasser: Wang, Pengyang, Jiang, Junke, Li, Renjie, Han, Wei, Liu, Jingjing, Zhu, Zhao, Chen, Bingbing, Xu, Qiaojing, Li, Tiantian, Shi, Biao, Huang, Qian, Zhang, Dekun, Apergi, Sofia, Brocks, Geert, Zhu, Chenjun, Tao, Shuxia, Zhao, Ying, Zhang, Xiaodan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article CdAc2 flexible perovskite solar cells perovskite solar cell perovskite/silicon tandem solar cells
Beschreibung
Zusammenfassung:© 2023 Wiley-VCH GmbH.
Polycrystalline perovskite films fabricated on flexible and textured substrates often are highly defective, leading to poor performance of perovskite devices. Finding substrate-tolerant perovskite fabrication strategies is therefore paramount. Herein, this study shows that adding a small amount of Cadmium Acetate (CdAc2 ) in the PbI2 precursor solution results in nano-hole array films and improves the diffusion of organic salts in PbI2 and promotes favorable crystal orientation and suppresses non-radiative recombination. Polycrystalline perovskite films on the flexible substrate with ultra-long carrier lifetimes exceeding 6 µs are achieved. Eventually, a power conversion efficiency (PCE) of 22.78% is obtained for single-junction flexible perovskite solar cells (FPSCs). Furthermore, it is found that the strategy is also applicable for textured tandem solar cells. A champion PCE of 29.25% (0.5003 cm2 ) is demonstrated for perovskite/silicon tandem solar cells (TSCs) with CdAc2 . Moreover, the un-encapsulated TSCs maintains 109.78% of its initial efficiency after 300 h operational at 45 °C in a  nitrogen atmosphere. This study provides a facile strategy for achieving high-efficiency perovskite-based solar cells
Beschreibung:Date Revised 11.08.2023
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202211806