DataVXAdvanced MaterialsPaper
journal article·2024-12

A Polymeric Hole Transporter with Dual‐Interfacial Interactions Enables 25%‐Efficiency Blade‐Coated Perovskite Solar Cells

Feifei Wang, Tianxiao Liu, Yangyang Liu, Yuhan Zhou, Xiaorui Dong, Yaoyao Zhang, Xiaoyu Shi, Yunjie Dou, Zhijun Ren, Lingyuan Wang, Yu Zhao, Siwei Luo, Xiaodong Hu, Xiaoxiao Peng, Chunxiong Bao, Wei Wang, Jingyang Wang, Wenbing Hu, Shangshang Chen

Advanced Materials· Volume 36· Issue 52
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Source abstract

Abstract

Abstract Self‐assembly monolayer (SAM) hole transporters, consisting of anchoring, spacer, and terminal groups, have played a significant role in the development of inverted perovskite solar cells (PSCs). However, the weak interaction between perovskite and hydrophobic terminal group of SAMs limits surface wettability and interface stability. To address this issue, two novel hole transporters (named DBPP and Poly‐DBPP) with centrosymmetric biphosphonic acid groups are developed. Unlike conventional SAM hole transporters, the biphosphonic acid groups in DBPP and Poly‐DBPP can anchor to the underlying conductive substrate and interact with the perovskite layer simultaneously, improving surface wettability and suppressing interface recombination. Furthermore, compared to the small‐molecular DBPP, Poly‐DBPP exhibits higher conductance and excellent uniformity. This translates to a remarkable power conversion efficiency of 25.1% for blade‐coated PSCs and 22.0% for large‐area modules, respectively. Additionally, the PSCs based on Poly‐DBPP demonstrate impressive operational stability, retaining 92% of their initial PCE after 1,600 h of light soaking. This work presents a promising strategy for designing multifunctional hole transporters, paving the way for highly efficient and stable PSCs.
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Research context

PolymersElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Coordination Chemistry MOE Key Laboratory of High‐Performance Polymer Materials & Technology School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 P. R. China

School of Physics Nanjing University Nanjing Jiangsu 210093 P. R. China

National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials Frontiers Science Center for Critical Earth Material Cycling Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing Jiangsu 210023 P. R. China

School of Sustainable Energy and Resources Nanjing University Suzhou Jiangsu 215163 P. R. China

Key Laboratory of Advanced Electrode Materials for Novel Solar Cells for Petroleum and Chemical Industry of China School of Chemistry and Life Sciences Suzhou University of Science and Technology Suzhou Jiangsu 215009 P. R. China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China

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