Milić Jovana V, Kubicki Dominik J, Emsley Lyndon, Grätzel Michael
Laboratory of Photonics and Interfaces, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, SCS-DSM Award for best poster presentation in Physical Chemistry;, Email:
Laboratory of Magnetic Resonance, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne.
Chimia (Aarau). 2019 Apr 24;73(4):317-323. doi: 10.2533/chimia.2019.317.
Hybrid organic-inorganic perovskites have become one of the leading thin-film semiconductors for optoelectronics. Their broad application will greatly depend on overcoming the key obstacles associated with poor stability and limited scalability. There has been an ongoing effort to diminish some of these limitations by using organic additives. However, considering the lack of understanding of the underlying structure-property relationships, this progress was greatly based on trial and error as molecular-level design remains challenging. Our approach for enhancing the stability of hybrid perovskites without compromising their efficiency is based on judicious molecular design of multifunctional molecular modulators through fine-tuning of noncovalent interactions and exploiting their structural adaptability. The design principles were scrutinized by solid-state NMR spectroscopy to unravel a new path for stable and scalable perovskite solar cells, which we review in this article.
有机-无机杂化钙钛矿已成为光电子学领域领先的薄膜半导体之一。它们的广泛应用将极大地依赖于克服与稳定性差和可扩展性有限相关的关键障碍。人们一直在努力通过使用有机添加剂来减少其中一些限制。然而，鉴于对潜在结构-性能关系缺乏了解，这一进展很大程度上基于反复试验，因为分子水平的设计仍然具有挑战性。我们在不降低其效率的情况下提高杂化钙钛矿稳定性的方法是基于通过微调非共价相互作用并利用其结构适应性对多功能分子调节剂进行明智的分子设计。通过固态核磁共振光谱对设计原则进行了仔细研究，以揭示稳定且可扩展的钙钛矿太阳能电池的新途径，我们将在本文中对此进行综述。
