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

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

Abstract

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.