Passivation by pyridine-induced PbI2in methylammonium lead iodide perovskites

Andre Cook, Timothy W. Jones, Jacob Tse Wei Wang, Hua Li, Rob Atkin, Noel W. Duffy, Scott W. Donne, Gregory J. Wilson

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Defects at discontinuities of the perovskite lattice limit the performance of the perovskite solar cell (PSC). Lead iodide (PbI2) and pyridine have been shown to passivate these defects. We treat methylammonium lead iodide (MAPbI3) films with pyridine solutions to investigate the effects of the two passivators. By comparing confocal fluorescence microscopy (CFM) images at 405 nm excitation and then at 559 nm excitation we demonstrate the pyridine treatment passivates and forms PbI2 crystallites which cause additional passivation. This journal is

Original languageEnglish
Pages (from-to)23829-23833
Number of pages5
JournalRSC Advances
Issue number40
Publication statusPublished - 23 Jun 2020


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