无甲铵宽禁带钙钛矿太阳能电池的叶片涂层可扩展制备。

IF 36.3 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2025-07-01 DOI:10.1007/s40820-025-01838-6

Jianbo Liu, Meng Zhang, Xiaoran Sun, Linhu Xiang, Xiangyu Yang, Xin Hu, Zhicheng Wang, Tian Hou, Jinzhao Qin, Yuelong Huang, Mojtaba Abdi-Jalebi, Xiaojing Hao

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引用次数: 0

摘要

高效宽带隙钙钛矿太阳能电池（PSCs）的可扩展制造是实现串联太阳能电池全部商业潜力的关键。然而，利用叶片涂层技术制备高效的无甲基铵（MA-free） WBG PSCs存在诸多挑战，特别是其相分离性和膜稳定性。本文研制了一种不含ma的WBG钙钛矿油墨，用于在环境空气中进行叶片涂布制备FA0.8Cs0.2Pb(I0.75Br0.25)3薄膜。在各种a位碘化物中，RbI对Pb(SCN)2诱导的PbI2析出抑制效果最好，同时保持了晶粒的扩大。Rb的分布表明，在结晶和奥斯特瓦尔德成熟过程中，Rb离子与钙钛矿颗粒保持隔离，这有助于以最小的非辐射复合形成大颗粒WBG钙钛矿膜。结果，在小面积WBG PSCs上实现了23.0%的功率转换效率（PCE），而孔径面积为10.5 cm2的微型组件的PCE为20.2%，是通过叶片涂层由WBG钙钛矿制备的太阳能电池中最高的。这项工作提出了一种在环境条件下稳定的无ma WBG psc的可扩展和可重复的制造策略，推进了其商业化的道路。

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Scalable Fabrication of Methylammonium-Free Wide-Bandgap Perovskite Solar Cells by Blade Coating in Ambient Air

Highlights

RbI is the most effective in mitigate PbI₂ precipitation caused by Pb(SCN)₂ while maintaining large grains.
Rb is kept at the grain boundaries during crystallization and Ostwald ripening, contributes to a slow growth of the grains.
Wide-bandgap perovskite solar cells with blade-coated perovskite in air achieved a certified power conversion efficiency of 23%, among the highest values reported.

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.