Multistrategy Preparation of Efficient and Stable Environment-Friendly Lead-Based Perovskite Solar Cells

Huan Bi; Gaoyi Han; Mengna Guo; Chao Ding; Hanjun Zou; Qing Shen; Shuzi Hayase; Wenjing Hou

doi:10.1021/acsami.2c06032

Multistrategy Preparation of Efficient and Stable Environment-Friendly Lead-Based Perovskite Solar Cells

ACS Appl Mater Interfaces. 2022 Aug 10;14(31):35513-35521. doi: 10.1021/acsami.2c06032. Epub 2022 Jul 30.

Authors

Huan Bi^{1

2}, Gaoyi Han², Mengna Guo², Chao Ding¹, Hanjun Zou³, Qing Shen¹, Shuzi Hayase¹, Wenjing Hou²

Affiliations

¹ Graduate School of Informatics and Engineering, The University of Electro-Communication, Tokyo 182-8585, Japan.
² Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan 030006, P. R. China.
³ Analytical and Testing Center, Chongqing University, Chongqing 401331, P. R. China.

PMID: 35912489
DOI: 10.1021/acsami.2c06032

Abstract

Perovskite solar cells (PSCs) have achieved huge success in power conversion efficiency (PCE) and stability. However, further improving the PCE of PSCs and stability is still a big challenge. Here, we attempt to improve the PCE and stability of PSCs using a functional additive named 3-mercaptopropyltriethoxysilane (SiSH) in the perovskite antisolvent. It is revealed that SiSH can release the stress in the film, reduce the defects, and inhibit lithium-ion migration and lead leakage. As a result, the target device achieves an efficiency enhancement from 20.80 to 22.42% as compared to the control device. Meanwhile, device stability is ameliorated after SiSH modification. Furthermore, new adsorbents are used to treat the leaked lead to make it comply with safe drinking water standards. This work provides an idea for developing multifunctional antisolvent additives and adsorbents for high PCE, long stability, and environment-friendly Pb-based PSCs.

Keywords: 3-mercaptopropyltriethoxysilane; environment-friendly perovskite solar cell; lead leakage and recycling; lithium-ion migration; stress release.