用于可扩展自组装单层的增强锚,以获得高性能钙钛矿太阳能组件

IF 26 1区 材料科学 Q1 CHEMISTRY, PHYSICAL
Ming Chen, Xin Lv, Lianjie Duan, Bita Farhadi, Chenyang Yu, Dong Yang, Zhihua Zhang, Minyong Du, Kai Wang, Shengzhong (Frank) Liu
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引用次数: 0

摘要

氧化镍(NiOx)与自组装单层(SAMs)作为空穴传输层的协同集成提高了钙钛矿太阳能电池(PSCs)的性能,其中向下磷酸盐锚定(DPA)提高了空穴提取效率,但存在可扩展性挑战,SAMs结构与性能的相关性尚不清楚。在本研究中,采用Brønsted酸预处理结合硝酸盐阴离子占据NiOx上的活性位点来抑制传统的向下磷酸锚定,并建立向上磷酸锚定(UPA)结构,即SAMs不仅锚定在钙钛矿层上,而且锚定在NiOx表面,有效地桥接界面之间的空穴-输运。这种UPA结构表现出增强的界面附着力和改善的能带对准,同时也增加了表面能,促进钙钛矿结晶和促进应力释放。因此,冠军PSC实现了令人印象深刻的25.9%的功率转换效率,并具有出色的稳定性。此外,这种结构增强了sam对大面积钙钛矿组件的适用性,使156 × 156 mm2的组件达到22.05%的高效率。这项工作促进了SAM在钙钛矿光伏商业化中的应用,并激发了对SAM锚定结构与界面性质之间关系的进一步研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Reinforced Anchor for Scalable Self‐Assembled Monolayer to Attain High‐Performance Perovskite Solar Modules
The synergistic integration of nickel oxide (NiOx) with self‐assembled monolayers (SAMs) as hole transport layers boosts perovskite solar cells (PSCs) performance, where downward phosphate anchoring (DPA) enhances hole extraction efficiency but poses scalability challenges, with SAMs configuration‐performance correlations remaining unclear. Herein, a Brønsted acid pretreatment combined with nitrate anions occupying active sites on NiOx is employed to suppress conventional downward phosphate anchoring and establish an upward phosphate anchoring (UPA) configuration, whereby SAMs anchor not only onto the perovskite layer but also the NiOx surface, effectively bridging hole‐transport in between the interface. This UPA configuration exhibits enhanced interfacial adhesion and improved energy band alignment, while also increasing the surface energy, which promotes perovskite crystallization and facilitates stress release. As a result, the champion PSC achieves an impressive power conversion efficiency of 25.9% with excellent stability. Furthermore, this configuration enhances the suitability of SAMs for large‐area perovskite modules, enabling a 156 × 156 mm2 module to reach a high efficiency of 22.05%. This work promotes the application of SAMs in the commercialization of perovskite photovoltaics and stimulates further investigation into the relationship between SAM anchoring configurations and interfacial properties.
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来源期刊
Advanced Energy Materials
Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
41.90
自引率
4.00%
发文量
889
审稿时长
1.4 months
期刊介绍: Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.
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