journal article·2025-02-14

Orthogonal Solvent Approach in Dimensionality-Heterointerface Perovskite Photovoltaics

Xiaofeng Huang, Qiu Xiong, Zhenhuang Su, Huifeng Zhang, Jinfei Zhou, Fang Cao, Qifan Feng, Ye Yang, Yu Han, Peng Gao, Jun Yin, Jing Li, Nanfeng Zheng, Binghui Wu

ACS Energy Letters· Volume 10· Issue 2
Publisher page

Abstract

Constructing low-dimensionality/three-dimensionality (LD/3D) perovskite heterointerfaces is a well-established strategy to enhance the perovskite photovoltaic performance. Here, we introduce a solvent-orthogonality approach to precisely tailor the structure and dimensionality of LD perovskites within LD/3D perovskite heterointerfaces, thereby optimizing interfacial energetics. In this approach, LD perovskite precursors, comprising both organic and inorganic components, are dissolved in a mixed acetonitrile and 1,2-dimethoxyethaane solvent system and deposited onto a 3D perovskite layer with minimal impact on the substrate. Unlike traditional cation-exchange methods that focus solely on organic components, our strategy enables the growth of dimensionally tailored LD stacks (1D, 2D, and quasi-2D configurations), forming effective LD/3D heterointerfaces. This optimization improves carrier kinetics at the perovskite-charge transport layer, resulting in an n-i-p device efficiency of 25.14% and solar modules (18 cm 2 active area) with 22.61% efficiency. Our solvent-orthogonality strategy presents a promising method for engineering perovskite heterointerfaces in various photovoltaic applications.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Chalcogenide Semiconductor Thin Films · Conducting polymers and applications

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

Affiliations

State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, National & Local Joint Engineering Research Center of Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Pen-Tung Sah Institute of Micro-Nano Science and Technology

Xiamen University

Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM)

Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences

Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 239 Zhangheng Road, Shanghai 201204, China

Multi-Scale Porous Materials Center, Institute of Advanced Interdisciplinary Studies & School of Chemistry and Chemical Engineering

Chongqing University

KAUST Catalysis Center (KCC), Division of Physical Sciences and Engineering

King Abdullah University of Science and Technology

Funding

National Key Research and Development Program of China · Natural Science Foundation of Fujian Province · National Natural Science Foundation of China · New Cornerstone Science Foundation · Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province

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