Volume 63, Issue 51 e202412409
Research Article

One-Stone-For-Three-Birds Strategy Using a Fullerene Modifier for Efficient and Stable Inverted Perovskite Solar Cells

Xiaofen Jiang

Xiaofen Jiang

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

These authors contributed equally to this work.

Contribution: ​Investigation (lead), Writing - original draft (equal)

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Lingbo Jia

Lingbo Jia

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

These authors contributed equally to this work.

Contribution: ​Investigation (lead), Writing - original draft (equal)

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Shantao Zhang

Shantao Zhang

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

These authors contributed equally to this work.

Contribution: ​Investigation (lead), Writing - original draft (equal)

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Yan Gao

Yan Gao

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting)

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Nan Yan

Nan Yan

Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

Contribution: ​Investigation (supporting)

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Tianao Hou

Tianao Hou

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting)

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Shuang Gao

Shuang Gao

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting)

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Xue Wang

Xue Wang

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting)

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Xinyu Li

Xinyu Li

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting)

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Dr. Wenjing Chen

Dr. Wenjing Chen

Department of Physics, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting)

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Prof. Zhengguo Xiao

Prof. Zhengguo Xiao

Department of Physics, CAS Key Laboratory of Strongly-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting), Writing - review & editing (supporting)

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Xiaojun Wu

Xiaojun Wu

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: ​Investigation (supporting), Writing - review & editing (supporting)

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Zhimin Fang

Corresponding Author

Zhimin Fang

Institute of Technology for Carbon Neutralization, Yangzhou University, Yangzhou, 225127 China

Contribution: ​Investigation (supporting), Supervision (equal), Writing - original draft (equal), Writing - review & editing (lead)

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Prof. Shengzhong (Frank) Liu

Corresponding Author

Prof. Shengzhong (Frank) Liu

Key Laboratory of Photoelectric Conversion and Utilization of Solar Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023 China

Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049 China

Contribution: Project administration (equal), Resources (equal), Supervision (lead), Writing - review & editing (lead)

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Shangfeng Yang

Corresponding Author

Shangfeng Yang

Key Laboratory of Precision and Intelligent Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026 China

Contribution: Project administration (lead), Resources (lead), Supervision (lead), Writing - review & editing (lead)

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First published: 16 August 2024
Citations: 8

Graphical Abstract

A novel fullerene derivative (denoted as C60-TMA) is synthesized and employed to modify the interface between perovskite and C60. C60-TMA can passivate the surface defects to suppress non-radiative recombination, form a cascade energy level to facilitate electron extraction, and induce secondary growth of perovskite, contributing to a champion PCE of 24.89 % for inverted PSCs with significantly improved thermal stability.

Abstract

The electron extraction from perovskite/C60 interface plays a crucial role in influencing the photovoltaic performance of inverted perovskite solar cells (PSCs). Here, we develop a one-stone-for-three-birds strategy via employing a novel fullerene derivative bearing triple methyl acrylate groups (denoted as C60-TMA) as a multifunctional interfacial layer to optimize electron extraction at the perovskite/C60 interface. It is found that the C60-TMA not only passivates surface defects of perovskite via coordination interactions between C=O groups and Pb2+ cations but also bridge electron transfer between perovskite and C60. Moreover, it effectively induces the secondary grain growth of the perovskite film through strong bonding effect, and this phenomenon has never been observed in prior art reports on fullerene related studies. The combination of the above three upgrades enables improved perovskite film quality with increased grain size and enhanced crystallinity. With these advantages, C60-TMA treated PSC devices exhibit a much higher power conversion efficiency (PCE) of 24.89 % than the control devices (23.66 %). Besides, C60-TMA benefits improved thermal stability of PSC devices, retaining over 90 % of its initial efficiency after aging at 85 °C for 1200 h, primarily due to the reinforced interfacial interactions and improved perovskite film quality.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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