钙钛矿太阳能电池叶片涂覆苯乙基碘化铵钝化层的共溶剂策略。

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-05-12 DOI:10.1021/acsami.5c04111

Wanqi Luo,Jianbo Liu,Xiaoran Sun,Xiangyu Yang,Linhu Xiang,Xin Liu,Zhicheng Wang,Wufang Wang,Jian Yu,Meng Zhang

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引用次数: 0

摘要

钙钛矿太阳能电池（PSCs）在溶液制造中由于结晶速度快而存在缺陷。使用苯乙基碘化铵（PEAI）进行表面钝化可以减轻这些缺陷，但传统的旋涂方法限制了其可扩展性。叶片涂层提供了一种具有成本效益的替代方案，但使用异丙醇（IPA）基溶液的叶片涂层PEAI钝化层面临覆盖不均匀和钙钛矿降解的挑战。本文引入二丁醇（TBA）作为助溶剂，提高溶液粘度，在叶片涂布过程中形成稳定的液柱。这提高了均匀性，降低了ipa引起的腐蚀水平。结果，PSC效率从21.6%提高到23.0%，开路电压从1.14 V提高到1.17 V。薄膜还表现出优异的水分稳定性，在24°C和50-60% RH下保持3000小时的性能。本研究提出了一种可扩展的、可持续的大面积钙钛矿膜钝化策略，提高了PSCs的工业可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Cosolvent Strategy in Blade-Coating Phenethylammonium Iodide Passivation Layers for Perovskite Solar Cells.

Perovskite solar cells (PSCs) often suffer from defects due to rapid crystallization in solution-based fabrication. Surface passivation using phenethylammonium iodide (PEAI) can mitigate these defects, but traditional spin-coating methods limit their scalability. Blade-coating offers a cost-effective alternative, yet blade-coating PEAI passivation layers using isopropanol (IPA) based solution face the challenge of uneven coverage and perovskite degradation. Here, we introduce dibutyl alcohol (TBA) as cosolvent to enhance viscosity of the solution, forming a stable liquid column during blade-coating. This improves uniformity and reduces the level of IPA-induced corrosion. As a result, PSC efficiency increased from 21.6% to 23.0%, with an improved open circuit voltage from 1.14 to 1.17 V. The films also exhibited excellent moisture stability, maintaining performance for 3000 h at 24 °C and 50-60% RH. This study presents a scalable, sustainable passivation strategy for large-area perovskite films, advancing the industrial viability of PSCs.

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.