Double amidino-mediated multiple hydrogen-bonded Dion–Jacobson perovskites enable oriented crystallization for efficient inverted FAPbI<sub>3</sub> solar cells and modules (642 cm<sup>2</sup>)
Zhiyuan Xu, Yuqin Zhou, Cheng Gong, Ke Wang, Zhihao Guo, Zhijun Li, Omar F. Mohammed, Zhigang Zang
Abstract
A double amidino-based derivative, namely PhDFACl 2 , has been explored as a spacer for DJ 2D/3D FAPbI 3 -based perovskites. Champion efficiencies of 26.10%, 24.81%, and 18.20% for 0.1 cm 2 , 1.01 cm 2 , and 642 cm 2 devices have been achieved.
Topics & Concepts
CrystallizationMaterials scienceCrystallographyHydrogenChemistryOrganic chemistryPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesSolid-state spectroscopy and crystallography