<br>准二维锡基钙钛矿表面重构实现高稳定无铅太阳能电池,Advanced Materials

当前位置： X-MOL 学术 › Adv. Mater. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

准二维锡基钙钛矿表面重构实现高稳定无铅太阳能电池
Advanced Materials ( IF 27.4 ) Pub Date : 2023-10-26 , DOI: 10.1002/adma.202308655
Feng Yang _{1,

2} , Rui Zhu ₂ , Zuhong Zhang ₂ , Zhenhuang Su ₃ , Weiwei Zuo ₄ , Bingchen He ₃ , Mahmoud Hussein Aldamasy ₅ , Yu Jia ₂ , Guixiang Li _{5,

6,

7} , Xingyu Gao ₃ , Zhe Li ₈ , Michael Saliba _{4,

9} , Antonio Abate _{5,

6} , Meng Li ₂

Affiliation

Henan Key Laboratory of Photovoltaic Materials, School of Physics, Henan Normal University, Xinxiang, 453007, China.
Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation, Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China.
Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute, Chinese Academy of Sciences, 239 Zhangheng Road, Shanghai, 201204, P. R. China.
Institute for Photovoltaics (ipv), University of Stuttgart, Pfaffenwaldring 47, D-70569, Stuttgart, Germany.
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany.
Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany.
Institute of Chemical Sciences and Engineering, École Polytechnique Fédéralede Lausanne (EPFL), Lausanne, 1015, Switzerland.
School of Engineering and Materials Science (SEMS), Queen Mary University of London, London, E1 4NS, UK.
Helmholtz Young Investigator Group FRONTRUNNER, IEK5-Photovoltaics, Forschungszentrum Jülich, 52425, Jülich, Germany.

卤化锡钙钛矿是铅钙钛矿的一种有吸引力的替代品。然而，由于Sn(II)/Sn(IV)的氧化还原电位较低，特别是在氧气和水存在的情况下，Sn(IV)在表面层的积累将对器件的性能和稳定性产生负面影响。为此，本工作引入了一种新型多功能分子——1,4-苯基二甲基二溴化铵二胺（phDMADBr），在锡基钙钛矿薄膜表面形成保护层。 PhDMADBr 和钙钛矿表面之间的强相互作用可改善电子转移，钝化不配位的 Sn(II)，并增强抗水和抗氧能力。原位掠入射广角 X 射线散射 (GIWAXS) 分析证实了准二维相的热稳定性增强，从而钙钛矿的整体稳定性增强。实现了器件的长期稳定性，在10%RH湿气N ₂环境中200小时以上仍保持90%以上的原始效率。这些发现提出了一种增强锡基钙钛矿器件运行稳定性的新方法，为推进无铅光电应用提供了一种策略。

"点击查看英文标题和摘要"

更新日期：2023-10-26

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南