Jung Su-Kyo, Lee David S, Ann Myung Hyun, Im Sang Hyuk, Kim Jong H, Kwon O-Pil
Department of Molecular Science and Technology, Ajou University, Suwon, 443-749, Republic of Korea.
Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 136-713, Republic of Korea.
ChemSusChem. 2018 Nov 23;11(22):3882-3892. doi: 10.1002/cssc.201801908. Epub 2018 Nov 14.
Organic electron-transporting materials (ETMs) with low-temperature solution processability and high electron-transfer/transport characteristics have received significant attention for their use in high-performance perovskite solar cells (PSCs). In contrast to widely investigated fullerene-based organic ETMs for PSCs, only a few types of non-fullerene-based ETMs have been developed. In this Concept article, a representative design concept for non-fullerene ETMs is described for use in normal (n-i-p) and inverted (p-i-n) type PSCs. On the basis of a discussion on ETM requirements for PSCs, recently developed non-fullerene polymeric and small-molecule-based ETMs for PSCs are highlighted, alongside various other approaches for enhancing PSC device performance, such as using additional dopants and introducing amine terminal groups in the ETMs and ETM-based interlayers. This Concept provides a basic design concept for non-fullerene-based ETMs in PSCs.
具有低温溶液可加工性和高电子转移/传输特性的有机电子传输材料（ETM）因其在高性能钙钛矿太阳能电池（PSC）中的应用而受到广泛关注。与广泛研究的用于PSC的基于富勒烯的有机ETM相比，仅开发了少数几种基于非富勒烯的ETM。在这篇概念文章中，描述了一种用于常规（n-i-p）和倒置（p-i-n）型PSC的基于非富勒烯ETM的代表性设计概念。在讨论PSC对ETM的要求的基础上，重点介绍了最近开发的用于PSC的基于非富勒烯的聚合物和小分子ETM，以及其他各种提高PSC器件性能的方法，例如使用额外的掺杂剂以及在ETM和基于ETM的中间层中引入胺端基。本概念为PSC中基于非富勒烯的ETM提供了基本设计概念。
