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Tsinghua Science and Technology 2022, 27(4): 741-750 https://doi.org/10.26599/TST.2021.9010024
Open Access | Issue | Published: 09 December 2021

Interface Modification of TiO 𝟐 Electron Transport Layer with PbCl 𝟐 for Perovskiote Solar Cells with Carbon Electrode

Show Author's Information Abolfazl Amraeinia,  Yuhua Zuo( ),  Jun Zheng,  Zhi Liu,  Guangze Zhang,  Liping Luo,  Buwen Cheng,  Xiaoping Zou,  Chunbo Li
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductor, Chinese Academy of Sciences, Beijing 100083, China
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, Beijing Information Science and Technology University, Beijing 100101, China
School of Science, Minzu University of China, Beijing 100081, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Keywords:
stability, Perovskite Solar Cell (PSC), Electron Transport Layer (ETL), electron and hole recombination, modification
Cite this article:
Amraeinia A, Zuo Y, Zheng J, et al. Interface Modification of TiO 𝟐 Electron Transport Layer with PbCl 𝟐 for Perovskiote Solar Cells with Carbon Electrode. Tsinghua Science and Technology, 2022, 27(4): 741-750. https://doi.org/10.26599/TST.2021.9010024
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Abstract Full text About this article

Perovskite Solar Cells (PSCs) have attracted considerable attention because of their unique features and high efficiency. However, the stability of perovskite solar cells remains to be improved. In this study, we modified the TiO 2 Electron Transport Layer (ETL) interface with PbCl 2. The efficiency of the perovskite solar cells with carbon electrodes increased from 11.28% to 13.34%, and their stability obviously improved. The addition of PbCl 2 had no effect on the morphology, crystal structure, and absorption property of the perovskite absorber layer. However, it affected the band energy level alignment of the solar cells and accelerated the electron extraction and transfer at the interface between the perovskite layer and the ETL, thus enhancing the overall photovoltaic performance. The interfacial modification of ETL with PbCl 2 is a promising way for the potential commercialization of low-cost carbon electrode-based perovskite solar cells.


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About this article

Interface Modification of TiO 𝟐 Electron Transport Layer with PbCl 𝟐 for Perovskiote Solar Cells with Carbon Electrode

Show Author's information Abolfazl Amraeinia, Yuhua Zuo( ), Jun Zheng, Zhi Liu, Guangze Zhang, Liping Luo, Buwen Cheng, Xiaoping Zou, Chunbo Li
State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductor, Chinese Academy of Sciences, Beijing 100083, China
Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Sensor, MOE Key Laboratory for Modern Measurement and Control Technology, Beijing Information Science and Technology University, Beijing 100101, China
School of Science, Minzu University of China, Beijing 100081, China
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

Perovskite Solar Cells (PSCs) have attracted considerable attention because of their unique features and high efficiency. However, the stability of perovskite solar cells remains to be improved. In this study, we modified the TiO 2 Electron Transport Layer (ETL) interface with PbCl 2. The efficiency of the perovskite solar cells with carbon electrodes increased from 11.28% to 13.34%, and their stability obviously improved. The addition of PbCl 2 had no effect on the morphology, crystal structure, and absorption property of the perovskite absorber layer. However, it affected the band energy level alignment of the solar cells and accelerated the electron extraction and transfer at the interface between the perovskite layer and the ETL, thus enhancing the overall photovoltaic performance. The interfacial modification of ETL with PbCl 2 is a promising way for the potential commercialization of low-cost carbon electrode-based perovskite solar cells.

Keywords: stability, Perovskite Solar Cell (PSC), Electron Transport Layer (ETL), electron and hole recombination, modification

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Publication history

Received: 25 February 2021
Accepted: 12 March 2021
Published: 09 December 2021
Issue date: August 2022

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© The author(s) 2022

Acknowledgements

This work was in part supported by the National Natural Science Foundation of China (Nos. 61875186, 61975196, and 61674140), and Chinese Academy of Sciences (CAS) and The World Academy of Sciences (TWAS) (CAS-TWAS) scholarship.

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