Ma Yinyi, Gong Jue, Zeng Peng, Liu Mingzhen
School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
State Key Laboratory Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
Nanomicro Lett. 2023 Jul 7;15(1):173. doi: 10.1007/s40820-023-01131-4.
Design and modification of interfaces have been the main strategies in developing perovskite solar cells (PSCs). Among the interfacial treatments, dipole molecules have emerged as a practical approach to improve the efficiency and stability of PSCs due to their unique and versatile abilities to control the interfacial properties. Despite extensive applications in conventional semiconductors, working principles and design of interfacial dipoles in the performance/stability enhancement of PSCs are lacking an insightful elucidation. In this review, we first discuss the fundamental properties of electric dipoles and the specific roles of interfacial dipoles in PSCs. Then we systematically summarize the recent progress of dipole materials in several key interfaces to achieve efficient and stable PSCs. In addition to such discussions, we also dive into reliable analytical techniques to support the characterization of interfacial dipoles in PSCs. Finally, we highlight future directions and potential avenues for research in the development of dipolar materials through tailored molecular designs. Our review sheds light on the importance of continued efforts in this exciting emerging field, which holds great potential for the development of high-performance and stable PSCs as commercially demanded.
界面的设计与修饰一直是钙钛矿太阳能电池（PSC）研发中的主要策略。在界面处理方法中，偶极分子因其在控制界面性质方面独特且多样的能力，已成为提高PSC效率和稳定性的一种实用方法。尽管偶极分子在传统半导体中有着广泛应用，但在PSC性能/稳定性提升方面，界面偶极的工作原理和设计仍缺乏深刻的阐释。在本综述中，我们首先讨论电偶极的基本性质以及界面偶极在PSC中的具体作用。然后，我们系统地总结了偶极材料在几个关键界面上的最新进展，以实现高效稳定的PSC。除了这些讨论，我们还深入探讨了可靠的分析技术，以支持对PSC中界面偶极的表征。最后，我们强调了通过定制分子设计开发偶极材料的未来方向和潜在研究途径。我们的综述揭示了在这个令人兴奋的新兴领域持续努力的重要性，该领域在开发符合商业需求的高性能、稳定PSC方面具有巨大潜力。
