Blade-Coated Organic Photovoltaics with Dichlorophthalic Acid Self-Assembled Monolayer

IF 10.7 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materials Chemistry A Pub Date : 2025-03-12 DOI:10.1039/d5ta00713e

Yingcong Zheng, Cenqi Yan, Hongxiang Li, Wei He, Jiayuan Zhu, Yingyue Hu, Jiayu Wang, Yufei Gong, Lei Meng, Yongfang Li, Pei Cheng

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引用次数: 0

Abstract

To meet the demands of future industrialization, organic photovoltaics (OPVs) necessitate improved power conversion efficiency (PCE) and optimized manufacturing processes. Anode interfacial layer (AIL) is a critical component within OPV architecture. Yet, the prevalent PEDOT:PSS AIL exhibits hygroscopic and acidic nature, undermining device stability. Herein, we introduce 4,5-Dichlorophthalic Acid (2C2BA), a self-assembled monolayer (SAM) material, as an AIL. The 2C2BA AIL is formed by in situ self-assembly following the deposition of the donor:acceptor:2C2BA solution, obviating extra monolayer processing. Both active layer of small- and large-area devices are fabricated by blade coating. Devices with a PM6:BO-4Cl active layer and 2C2BA AIL achieve a high PCE of 17.8%, exceeding PEDOT:PSS-based devices at 17.4%. Devices with PM6:BTP-eC9 and 2C2BA achieve a high PCE of 18.1%, and an notable short-circuit current density (JSC) of 28.2 mA cm-2. Scaling to 2cm2, PM6:BTP-eC9-based OPVs with 2C2BA hit a PCE of 16.7%, outperforming OPV devices or modules with areas ≥ 2 cm2 with SAM from the literature. This work stands as an advancement in the application of SAM for large-area OPVs, providing insights into the scalable and high-throughput OPV manufacturing.

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来源期刊

Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

19.50

自引率

5.00%

发文量

1892

审稿时长

1.5 months

期刊介绍： The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.