Enhancing Perovskite Solar Cell Performance Through Propylamine Hydroiodide Passivation

Overview

Journal Nanomaterials (Basel)

Date 2024 Sep 13

PMID 39269078

Authors

Fulin Sun

Ting Zhu

Chenhui Zhang

Yi Dong

Yuzhu Guo

Dan Li

Fangtian You

Chunjun Liang

Affiliations

Soon will be listed here.

Abstract

In recent years, the power conversion efficiency of perovskite solar cells has increased rapidly. Perovskites can be prepared using simple and cost-effective solution methods. However, the perovskite films obtained are usually polycrystalline and contain numerous defects. Passivation of these defects is crucial for enhancing the performance of solar cells. Here, we report the use of propylamine hydroiodide (PAI) for defect passivation. We found that PAI can result in higher-efficiency cells by reducing the defects and suppressing non-radiative recombination. Consequently, n-i-p perovskite solar cells with a certificated efficiency of 21% were obtained. In addition, PAI exhibited excellent performance in p-i-n devices by serving as a buried interface layer, leading to an improved efficiency of 23%.

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