FA/Cs-based mixed Pb–Sn perovskite solar cells: A review of recent advances in stability and efficiency

钙钛矿(结构) 甲脒 材料科学 带隙 限制 热稳定性 能量转换效率 纳米技术 太阳能电池 光电子学 工程物理 化学工程 机械工程 工程类
作者
Atefeh Yadegarifard,Haram Lee,Hae‐Jun Seok,Inho Kim,Byeong‐Kwon Ju,Han‐Ki Kim,Doh‐Kwon Lee
出处
期刊:Nano Energy [Elsevier BV]
卷期号:112: 108481-108481 被引量:29
标识
DOI:10.1016/j.nanoen.2023.108481
摘要

Perovskite solar cells (PSCs) have gained widespread attention due to their impressive optoelectronic properties, extraordinarily high efficiency, and low-cost manufacturing processes. PSCs are poised to usher in a new era of clean energy production. However, the use of methylammonium (MA) as the A-site cation in PSCs may result in poor thermal and atmospheric stability, limiting their potential for widespread commercialization. On the other hand, the most extensively studied perovskite systems with respect to B-site cations are pure Pb-based compositions due to their high device performance demonstrated to date. However, mixed Pb–Sn compositions can offer optimal bandgap energies for single-junction solar cells, suggesting the promise of future efficiency improvements. Thus, this review focuses on mixed Pb–Sn perovskite solar cells that use formamidinium (FA) or mixed cations of FA and cesium (Cs) without MA. These materials have bandgap energies suitable for use in either single-junction or multi-junction solar cells and show improved stability compared to their MA-based counterparts. We discuss the structural and optoelectronic properties of FA/Cs-based Pb–Sn perovskites and the efforts to improve their solar cell performance and stability through additive engineering, process optimization, and structural modifications. Our review highlights the potential for FA/Cs-based mixed Pb–Sn perovskites as a more stable and efficient alternative for future commercial applications of PSCs.
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