Addressing the global demand for clean energy, perovskite solar cells (PVSCs) have emerged as one of the promising candidates. However, ensuring the stability of PVSCs under various environmental factors remains a critical issue for commercialization. Various ionic functionalities are incorporated into perylene diimide (PDIN) derivatives for altering the work function of aluminum electrodes. Well-known amino N-oxide terminal (PDIN-O), and quaternary ammonium salts (PDIN-Br and PDIN-I) were applied as cathode interlayer (CIL) materials in inverted PVSCs. Within the PDIN derivatives, PDIN-I stands out for its superior electron injection effectiveness, minimized energy losses, and enhanced interface contacts, resulting in an optimal device efficiency of 15.9 %. The research emphasizes the role of efficient interlayer engineering in enhancing layer contact and coverage, inhibiting moisture permeation, and improving device stability. PDIN derivatives emerge as eco-friendly alternatives, offering promising prospects for stable and high-performance inverted PVSCs.

中文翻译：

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使用具有离子多样性的苝二酰亚胺衍生物定制高性能钙钛矿太阳能电池的阴极界面


为了满足全球对清洁能源的需求，钙钛矿太阳能电池（PVSC）已成为最有前途的候选者之一。然而，确保PVSC在各种环境因素下的稳定性仍然是商业化的关键问题。苝二酰亚胺 (PDIN) 衍生物中加入了各种离子官能团，用于改变铝电极的功函数。众所周知的氨基氮氧化物末端（PDIN-O）和季铵盐（PDIN-Br和PDIN-I）被用作反向PVSC中的阴极中间层（CIL）材料。在 PDIN 衍生物中，PDIN-I 以其卓越的电子注入效率、最小化的能量损失和增强的界面接触而脱颖而出，从而实现了 15.9% 的最佳器件效率。该研究强调了有效的层间工程在增强层接触和覆盖、抑制水分渗透和提高器件稳定性方面的作用。 PDIN 衍生物作为环保替代品出现，为稳定、高性能的倒置 PVSC 提供了广阔的前景。