Simplified p-i-n Perovskite Solar Cells with a Multifunctional Polyfullerene Electron Transporter

Fei-Fei Wang; Tian-Xiao Liu; Ze-Wei Cui; Ling-Yuan Wang; Yun-Jie Dou; Xiao-Yu Shi; Si-Wei Luo; Xiao-Dong Hu; Zhi-Jun Ren; Yang-Yang Liu; Yu Zhao; Shang-Shang Chen

doi:10.1007/s10118-024-3156-y

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Simplified p-i-n Perovskite Solar Cells with a Multifunctional Polyfullerene Electron Transporter

RESEARCH ARTICLE | Updated：2024-08-06

- Simplified p-i-n Perovskite Solar Cells with a Multifunctional Polyfullerene Electron Transporter
- Chinese Journal of Polymer Science Vol. 42, Issue 8, Pages: 1060-1066(2024)
- Affiliations：
  
  State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of High Performance Polymer Materials & Technology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 21003, China
- Author bio：
  
  schen@nju.edu.cn
- Funds：
- DOI：10.1007/s10118-024-3156-y
  CLC：
- Received：12 March 2024，
  
  Revised：2024-04-24，
  
  Accepted：04 May 2024，
  
  Online First：26 June 2024，
  
  Published：01 August 2024
- Accepted：
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Wang, F. F.; Liu, T. X.; Cui, Z. W.; Wang, L. Y.; Dou, Y. J.; Shi, X. Y.; Luo, S. W.; Hu, X. D.; Ren, Z. J.; Liu, Y. Y.; Zhao, Y.; Chen, S. S. Simplified p-i-n perovskite solar cells with a multifunctional polyfullerene electron transporter. Chinese J. Polym. Sci. 2024, 42, 1060–1066

Fei-Fei Wang, Tian-Xiao Liu, Ze-Wei Cui, et al. Simplified p-i-n Perovskite Solar Cells with a Multifunctional Polyfullerene Electron Transporter[J]. Chinese Journal of Polymer Science, 2024, 42(8): 1060-1066.
Wang, F. F.; Liu, T. X.; Cui, Z. W.; Wang, L. Y.; Dou, Y. J.; Shi, X. Y.; Luo, S. W.; Hu, X. D.; Ren, Z. J.; Liu, Y. Y.; Zhao, Y.; Chen, S. S. Simplified p-i-n perovskite solar cells with a multifunctional polyfullerene electron transporter. Chinese J. Polym. Sci. 2024, 42, 1060–1066 DOI： 10.1007/s10118-024-3156-y.

Fei-Fei Wang, Tian-Xiao Liu, Ze-Wei Cui, et al. Simplified p-i-n Perovskite Solar Cells with a Multifunctional Polyfullerene Electron Transporter[J]. Chinese Journal of Polymer Science, 2024, 42(8): 1060-1066. DOI： 10.1007/s10118-024-3156-y.

摘要

We develop a novel polyfullerene electron transporter called PFBCP

which achieves both efficient electron transport and hole blocking in a single layer. Our blade-coated perovskite solar cells utilizing PFBCP achieve a high power conversion efficiency exceeding 22% and retain 91% of initial efficiency after 1

200 hours of light soaking.

Abstract

In prevailing p-i-n perovskite solar cells (PSCs)

solution-processible fullerene molecules are widely used as electron-transporting layers (ETLs) but they typically suffer from poor uniformity and undesirable stability issues. Additionally

a separate bathocuproine (BCP) layer is needed to block hole transfer

increasing fabrication complexity and cost. Here

we address these limitations by developing a novel p

olymeric ETL (named PFBCP) synthesized by polymerizing C

with BCP. This innovative material achieves both efficient electron transport and hole blocking

while its excellent uniformity minimizes interface recombination and enhances stability. Consequently

our blade-coated PSCs utilizing PFBCP achieve a high power conversion efficiency exceeding 22% and retain 91% of initial efficiency after 1200 h of light exposure. This development not only paves the way for commercially viable PSCs but also opens avenues for future ETL design to realize even more efficient and stable PSCs.

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references

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