Unveiling the Role of Cl Incorporation Enables Scalable MA-Free Triple-Halide Wide-Bandgap Perovskites for Slot-Die-Coated Photovoltaic Modules

IF 6 3区 工程技术 Q2 ENERGY & FUELS
Solar RRL Pub Date : 2025-01-10 DOI:10.1002/solr.202400750
Severin Siegrist, Pedro Quintana Ceres, Victor Marrugat Arnal, Radha Krishnan Kothandaraman, Johnpaul Kurisinkal Pious, Huagui Lai, Vitor Vlnieska, Ayodhya N. Tiwari, Fan Fu
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引用次数: 0

Abstract

Photostable and efficient 1.8 eV wide-bandgap (WBG) perovskites are needed for all-perovskite tandem photovoltaic (PV) applications, but the high bromine (Br) content can cause halide segregation. To achieve the same bandgap with a lower Br content, MAPbCl3 can be added to form triple-halide perovskites. However, most triple-halide WBG perovskites are still fabricated by antisolvent spin coating with perovskite inks that cannot be transferred to scalable deposition methods. Furthermore, the role of the Cl additives on the bandgap and the photostability remains elusive. Here, Cl-additives, such as ACl, PbCl2, and APbCl3 (where A denotes MA, FA, Cs, Rb), are systematically investigated to form 1.8 eV triple-halide perovskites with 30 mol% Br by N2-assisted blade coating. It is found that PbCl2 and APbCl3 can increase the bandgap by several tens of meV, while ACl can only increase the bandgap by few meV. CsPbCl3 emerges as a promising alternative to MAPbCl3, enabling 17.2% efficient MA-free 1.8 eV triple-halide perovskite solar cells (0.062 cm2) with enhanced phase- and photostability. Its scalability is demonstrated by slot-die coating a ≈10% efficient WBG perovskite solar module with an aperture area of 52.8 cm2.

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Solar RRL
Solar RRL Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
12.10
自引率
6.30%
发文量
460
期刊介绍: Solar RRL, formerly known as Rapid Research Letters, has evolved to embrace a broader and more encompassing format. We publish Research Articles and Reviews covering all facets of solar energy conversion. This includes, but is not limited to, photovoltaics and solar cells (both established and emerging systems), as well as the development, characterization, and optimization of materials and devices. Additionally, we cover topics such as photovoltaic modules and systems, their installation and deployment, photocatalysis, solar fuels, photothermal and photoelectrochemical solar energy conversion, energy distribution, grid issues, and other relevant aspects. Join us in exploring the latest advancements in solar energy conversion research.
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