Building (001) oriented FAPbI3 films for high-performing perovskite solar cells

Yingke Ren; Hongyang Fu; Yingjie Sun; Zhaoqian Li; Xinge Guo; Xingtao An

doi:10.1039/d4cc00212a

Building (001) oriented FAPbI₃ films for high-performing perovskite solar cells

Chem Commun (Camb). 2024 Mar 28;60(27):3673-3676. doi: 10.1039/d4cc00212a.

Authors

Yingke Ren¹, Hongyang Fu¹, Yingjie Sun¹, Zhaoqian Li², Xinge Guo¹, Xingtao An¹

Affiliations

¹ Hebei Key Laboratory of Photoelectric Control on Surface and Interface, College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China.
² Key Laboratory of Photovoltaic and Energy Conservation Materials, CAS, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui, 230031, China.

PMID: 38456471
DOI: 10.1039/d4cc00212a

Abstract

The solution processed FAPbI₃ perovskite usually suffers from chaotic orientations. Herein, a template structure of oriented 2D perovskite is used to obtain a high-quality FAPbI₃ film with (001) preferred orientation by cation exchange. The highly oriented BA₂PbI₄ serves as a growth template and promotes the (001) orientation of the 3D perovskite. The dominantly (001) orientated FAPbI₃ perovskite exhibits uniform surface morphology and suppressed film defects.