Diamine-Mediated Synergistic Engineering of Orientation and Interfacial Field of 3D/1D Heterojunctions for Efficient Perovskite Photovoltaics

not only provides field-effect passivation but also templates the subsequent vertical alignment of 1D Pb-I chains assembled with 4APyCl. This configuration establishes continuous out-of-plane charge transport channels, enabling effective surface defect passivation, favorable energy-level alignment, and enhanced interfacial carrier extraction. The resulting inverted PSCs achieved a champion power conversion efficiency of 25.8% and retained 85% of the initial performance after 1000 h of maximum power point tracking under 1-sun illumination. By demonstrating the critical role of molecular orchestration in LD interlayers, this work provides a blueprint for establishing structure-property relationships and guides the rational design of stable and efficient 3D/1D perovskite photovoltaics.

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Publication Details

Journal
Nano-Micro Letters
Published
2026-04-14
DOI
https://doi.org/10.1007/s40820-026-02190-z
Primary Topic
Perovskite Materials and Applications
Type
article
Field-Weighted Citation Impact
0.00

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article

Diamine-Mediated Synergistic Engineering of Orientation and Interfacial Field of 3D/1D Heterojunctions for Efficient Perovskite Photovoltaics

Yunan Gao, Yaobin Li, Hantao Wang, Zhijian Chen et al.
Nano-Micro Letters
Perovskite Materials and Applications
article

Diamine-Mediated Synergistic Engineering of Orientation and Interfacial Field of 3D/1D Heterojunctions for Efficient Perovskite Photovoltaics

Yunan Gao, Yaobin Li, Hantao Wang, Zhijian Chen, Zhuoer Cai, Qinyun Liu, Lixin XIAO, Felix T. Eickemeyer, Yunxuan Cao, Yucheng Ye, Bo Qu, Yueli Liu, Lefan Gong, Wenjin Yu, Zhenhuang Su, Yu Zou, Rong Tang
article en

Abstract

not only provides field-effect passivation but also templates the subsequent vertical alignment of 1D Pb-I chains assembled with 4APyCl. This configuration establishes continuous out-of-plane charge transport channels, enabling effective surface defect passivation, favorable energy-level alignment, and enhanced interfacial carrier extraction. The resulting inverted PSCs achieved a champion power conversion efficiency of 25.8% and retained 85% of the initial performance after 1000 h of maximum power point tracking under 1-sun illumination. By demonstrating the critical role of molecular orchestration in LD interlayers, this work provides a blueprint for establishing structure-property relationships and guides the rational design of stable and efficient 3D/1D perovskite photovoltaics.

Nano-Micro LettersVol. 18(1)
Shanghai Jiao Tong University (CN), Chinese Academy of Sciences (CN), Peking University (CN), Shanghai Advanced Research Institute (CN), Peking University Shenzhen Hospital (CN), École Polytechnique Fédérale de Lausanne (CH), Southeast University (CN)
Salt Science Research Foundation, École Polytechnique Fédérale de Lausanne, National Natural Science Foundation of China, China Postdoctoral Science Foundation, National Key Research and Development Program of China
Affordable and clean energy
Openalex Percentile: Top 24%
Perovskite Materials and Applications
DOIOpen Access PDFOpenAlex
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