The fabrication of formamidinium lead iodide perovskite thin films via organic cation exchange

The fabrication of formamidinium lead iodide perovskite thin films via organic cation exchange

High-quality formamidinium lead iodide (FAPbI3) perovskite thin films are fabricated via organic cation exchange. With ammonia lead iodide (NH4PbI3) as the starting material, the NH4(+) in NH4PbI3 could be gradually substituted by FA(+) in formamidine acetate (FA-Ac) and simultaneously transformed t...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2016-01, Vol.52 (19), p.3828-3831
Hauptverfasser: Zhou, Zhongmin, Pang, Shuping, Ji, Fuxiang, Zhang, Bo, Cui, Guanglei
Format: Artikel
Sprache:eng
Schlagworte:
Ammonia
Cation exchanging
Exchange
High temperature
Iodides
Perovskites
Phase transformations
Thin films
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Zusammenfassung:High-quality formamidinium lead iodide (FAPbI3) perovskite thin films are fabricated via organic cation exchange. With ammonia lead iodide (NH4PbI3) as the starting material, the NH4(+) in NH4PbI3 could be gradually substituted by FA(+) in formamidine acetate (FA-Ac) and simultaneously transformed to the pure phase α-FAPbI3 at elevated temperature.
ISSN:1359-7345
1364-548X
DOI:10.1039/c5cc09873d