自组装单分子层在反式钙钛矿太阳能电池中的研究进展

Perovskite solar cells have attracted significant attention as a promising next-generation photovoltaic technology due to their excellent power conversion efficiency, low manufacturing cost, and simple fabrication process. However, their long-term stability and potential lead leakage severely hinder their commercialization. Inversed perovskite solar cells (iPSCs), with their superior stability, have become a research hotspot. Self-assembled monolayers (SAMs), as a novel hole-selective layer (HSL)material, offer a new approach to address the stability and efficiency issues of iPSCs due to their customizable molecular tailoring strategies and excellent interfacial control capabilities. This review summarizes the progress of SAMs in iPSCs, detailing the molecular structure design, deposition methods, and their mechanisms in energy level regulation, defect passivation, and interfacial modification. Furthermore, this review explores sequential deposition and Co-assembled monolayers (Co-SAMs)strategies to further enhance device performance. Finally, the challenges and future directions of SAMs technology are discussed, including large-area fabrication, long-term stability improvement, cost reduction, and the design of novel SAMs molecules. SAMs technology is expected to promote the high-efficiency, stable, and low-cost commercialization of iPSCs, contributing to the sustainable development of clean energy.