Volume 21, Issue 12 2411630
Review

Enhancing Performance of NiOx-Based Inverted Perovskite Solar Cells: Advances in Buried Interface Material Modification Strategy

Yulin Wei

Yulin Wei

The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000 China

Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an, 710072 P. R. China

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Chenyang Zhang

Chenyang Zhang

Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an, 710072 P. R. China

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Han Wang

Corresponding Author

Han Wang

School of Management, Xián Polytechnic University, Xián, 710048 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Ruida Xu

Ruida Xu

Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an, 710072 P. R. China

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Jing Li

Jing Li

Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an, 710072 P. R. China

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Gongbo Fu

Gongbo Fu

Department of Oncology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210093 China

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Kai Wang

Corresponding Author

Kai Wang

Institute of Flexible Electronics (IFE), Northwestern Polytechnical University (NPU), Xi'an, 710072 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Mingjia Xiao

Corresponding Author

Mingjia Xiao

The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, 324000 China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 13 February 2025
Citations: 6

Abstract

Inverted perovskite solar cells (PSCs) have become a current research hotspot due to their advantages such as low-temperature preparation, low hysteresis, and compatibility with stacked other cells. NiOx, as a metal oxide hole transport layer material, is widely used in inverted PSCs. However, challenges such as high defect density, low intrinsic conductivity, and unfavorable valence band mismatch at the NiOx/perovskite interface hinder further improvement of device performance. Therefore, enhancing the buried interface between NiOx and perovskite layers is crucial for optimizing performance. This review systematically categorizes materials based on their types, including organic small molecules, self-assembled monolayers (SAMs), polymers, and salts. Additionally, it incorporates other strategies, such as the introduction of low-dimensional materials, metal doping, and advancements in NiOx deposition technology. By reviewing the materials and technologies used in the past 2 years, this article aims to provide insights for enhancing the buried interface to achieve more efficient and stable NiOx-based PSCs. Finally, we also discuss future directions and challenges.

Conflict of Interest

The authors declare no conflict of interest.

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