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

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 pro...

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Published inChemical communications (Cambridge, England) Vol. 60; no. 27; pp. 3673 - 3676
Main Authors Ren, Yingke, Fu, Hongyang, Sun, Yingjie, Li, Zhaoqian, Guo, Xinge, An, Xingtao
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 28.03.2024
Subjects
Cation exchanging
Perovskites
Photovoltaic cells
Preferred orientation
Solar cells
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Summary: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.
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ISSN:1359-7345
1364-548X
DOI:10.1039/d4cc00212a