纵向均匀化中间体促进了包晶石/硅串联太阳能电池的空气处理混合顺序沉积

IF 9.6 1区 化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Jiahao Fang, Weiwei Chen, Shaojie Yuan, Shaofei Yang, Hongguang Meng, Kaitian Mao, Tieqiang Li, Zhengjie Zhu, Xingyu Feng, Huitian Guo, Lianyou Tang, Jinshuai Zhang, Xiang He, Qin Fei, Cao Yu, Jian Zhou, Yi Cui and Jixian Xu*, 
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引用次数: 0

摘要

在有纹理的硅衬底上构建串联太阳能电池时,非常需要混合序贯沉积(HSD)过氧化物薄膜。然而,在 HSD 的第二步,即无机和有机双层膜发生热扩散形成包晶石时,由于需要非常干燥的环境(惰性气体环境或相对湿度低于 10% 的干燥空气)以及整个薄膜厚度的反应不完全,其性能往往受到限制。在这里,我们展示了一种纵向均质中间体(LHI)策略,它能在环境条件(25 °C、30%-50% 相对湿度)下制备 HSD 包晶。这种方法避免了包晶封盖层的形成,促进了有机-无机双分子层的均匀相互扩散。因此,使用 HSD 在空气中加工的 1.68 eV 包晶石太阳能电池的效率从 16.42% 提高到 20.65%,使纹理包晶石/硅串联电池的效率达到 28.55%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Longitudinal Homogenized Intermediates Facilitate Air-Processed Hybrid Sequential Deposition of Perovskite/Silicon Tandem Solar Cells

Longitudinal Homogenized Intermediates Facilitate Air-Processed Hybrid Sequential Deposition of Perovskite/Silicon Tandem Solar Cells

Hybrid sequential deposition (HSD) of perovskite thin films is highly desirable for constructing tandem solar cells on textured silicon substrates. However, in the second step of HSD, where the inorganic and organic bilayers undergo thermal interdiffusion to form perovskite, performance is often limited by the need for a very dry environment (inert gas atmosphere or dry air with relative humidity below 10%) and incomplete reactions throughout the film thickness. Here, we demonstrate a longitudinal homogenized intermediate (LHI) strategy that enables the preparation of HSD perovskites under ambient conditions (25 °C, 30%–50% relative humidity). This approach circumvents the formation of a perovskite capping layer, promoting uniform interdiffusion of the organic–inorganic bilayer. As a result, the efficiency of 1.68 eV perovskite solar cells processed in air using HSD improved from 16.42% to 20.65%, leading to an efficiency of 28.55% for textured perovskite/silicon tandem cells.

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来源期刊
ACS Materials Letters
ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
14.60
自引率
3.50%
发文量
261
期刊介绍: ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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