Robust hole transport material with interface anchors enhances the efficiency and stability of inverted formamidinium–cesium perovskite solar cells with a certified efficiency of 22.3%
Rui Chen, Sanwan Liu, Xiaojia Xu, Fumeng Ren, Jing Zhou, Xueying Tian, Zhichun Yang, Xinyu Guanz, Zonghao Liu, Shasha Zhang, Yiqiang Zhang, Yongzhen Wu, Liyuan Han, Yabing Qi, Wei Chen
Abstract
Herein, we report the use of pyridine anchoring group functionalized poly(triarylamine) (p-PY) as a hole transport layer at buried interfaces between the ITO and formamidinium–cesium perovskite layer to enhance the efficiency and stability of inverted PSCs.
Topics & Concepts
FormamidiniumCaesiumPerovskite (structure)Materials scienceLayer (electronics)Transport layerOptoelectronicsChemistryInorganic chemistryNanotechnologyOrganic chemistryPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Light-Emitting Diodes Research