High-Efficiency Inverted Perovskite Solar Cells via In Situ Passivation Directed Crystallization

IF 27.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials Pub Date : 2024-08-14 DOI:10.1002/adma.202408101

Yanchun Huang, Kangrong Yan, Xinjiang Wang, Biao Li, Benfang Niu, Minxing Yan, Ziqiu Shen, Kun Zhou, Yanjun Fang, Xuegong Yu, Hongzheng Chen, Lijun Zhang, Chang-Zhi Li

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Abstract

Lead halide perovskite solar cells (PSCs) have emerged as one of the influential photovoltaic technologies with promising cost-effectiveness. Though with mild processabilities to massive production, inverted PSCs have long suffered from inferior photovoltaic performances due to intractable defective states at boundaries and interfaces. Herein, an in situ passivation (ISP) method is presented to effectively adjust crystal growth kinetics and obtain the well-orientated perovskite films with the passivated boundaries and interfaces, successfully enabled the new access of high-performance inverted PSCs. The study unravels that the strong yet anisotropic ISP additive adsorption between different facets and the accompanied additive engineering yield the high-quality (111)-orientated perovskite crystallites with superior photovoltaic properties. The ISP-derived inverted perovskite solar cells (PSCs) have achieved remarkable power conversion efficiencies (PCEs) of 26.7% (certified as 26.09% at a 5.97 mm² active area) and 24.5% (certified as 23.53% at a 1.28 cm² active area), along with decent operational stabilities.

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通过原位钝化定向结晶实现高效反相包晶太阳能电池。

卤化铅过氧化物太阳能电池（PSCs）已成为具有成本效益的有影响力的光伏技术之一。虽然倒置型 PSC 具有温和的工艺性，可以进行大规模生产，但由于边界和界面上存在难以解决的缺陷状态，其光伏性能长期以来一直较差。本文提出了一种原位钝化（ISP）方法，可有效调节晶体生长动力学，获得具有钝化边界和界面的取向良好的过氧化物薄膜，成功实现了高性能倒置式 PSC 的新途径。该研究揭示了不同面之间强而各向异性的 ISP 添加剂吸附以及伴随的添加剂工程，产生了具有优异光伏特性的高质量 (111) 取向的过氧化物晶体。ISP 衍生的倒置型过氧化物太阳能电池（PSCs）的功率转换效率（PCEs）分别达到了 26.7%（5.97 平方毫米活性面积下的认证值为 26.09%）和 24.5%（1.28 平方厘米活性面积下的认证值为 23.53%），并且具有良好的运行稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Materials 工程技术-材料科学：综合

CiteScore

43.00

自引率

4.10%

发文量

2182

审稿时长

2 months

期刊介绍： Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.