Photovoltaic Efficiency Optimization of Electrodeposited MAPbI3 Perovskite: Impact of Ammonium Valeric Acid Iodide Additive

IF 7.2 2区材料科学 Q2 CHEMISTRY, PHYSICAL Chemistry of Materials Pub Date : 2024-10-30 DOI:10.1021/acs.chemmater.4c02217

Romain Lavoipierre, Emilie Planes, Lionel Flandin, Lara Perrin

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Abstract

Electrodeposition is being investigated as an alternative method for developing large-area perovskite active layers for carbon-based solar cells. This study focuses on incorporating the 5-ammonium valeric acid iodide (5-AVAI) additive into the established MAPbI₃ perovskite. Previous research has shown that 5-AVAI can enhance the performance and stability of similar solar cells produced via spin-coating, drop-casting, or inkjet printing. However, its impact on solar cells with electrodeposited active layers remains unexplored. This research investigated the synthesis and characterization of mixed 3D–2D perovskites in the (MAPbI₃)_1–x((AVA)₂PbI₄)_x family processed by electrodeposition. By varying both the conversion times and 5-AVAI concentrations, we analyzed the structural, optical, and photovoltaic properties of these novel perovskites. An intricate interplay between the conversion parameters and the perovskite properties is evident. Notably, photovoltaic devices with a specific quantity of 5-AVAI showed a 65% enhancement in the power conversion efficiency after 150 h of post-treatment at 40 °C under vacuum. These findings open the way to the improved performance of electrodeposited MAPbI₃ perovskites.

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电沉积 MAPbI3 包晶石的光伏效率优化：戊酸铵碘化物添加剂的影响

电沉积作为一种替代方法，正在被研究用于开发碳基太阳能电池的大面积过氧化物活性层。本研究的重点是将 5-amium valeric acid iodide（5-AVAI）添加剂加入已建立的 MAPbI3 包晶石中。之前的研究表明，5-AVAI 可以提高通过旋涂、滴注或喷墨打印技术生产的类似太阳能电池的性能和稳定性。然而，5-AVAI 对采用电沉积活性层的太阳能电池的影响仍有待探索。本研究调查了通过电沉积法加工的 (MAPbI3)1-x((AVA)2PbI4)x 系列混合 3D-2D 包晶的合成和表征。通过改变转换时间和 5-AVAI 浓度，我们分析了这些新型过氧化物的结构、光学和光伏特性。转换参数与包晶特性之间错综复杂的相互作用显而易见。值得注意的是，含有特定数量 5-AVAI 的光伏器件在 40 °C 真空条件下经过 150 小时的后处理后，功率转换效率提高了 65%。这些发现为提高电沉积 MAPbI3 包晶的性能开辟了道路。

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来源期刊

Chemistry of Materials 工程技术-材料科学：综合

CiteScore

14.10

自引率

5.80%

发文量

929

审稿时长

1.5 months

期刊介绍： The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.