Epitaxial Electrodeposition of Methylammonium Lead Iodide Perovskites

Journal Article · Wed Dec 23 00:00:00 EST 2015 · Chemistry of Materials

DOI:https://doi.org/10.1021/acs.chemmater.5b04524· OSTI ID:1233974

Koza, Jakub A. ^[1]; Hill, James C. ^[1]; Demster, Ashley C. ^[1]; Switzer, Jay A. ^[1]

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1. Department of Chemistry and Graduate Center for Materials Research, Missouri University of Science and Technology, Rolla, Missouri 65409, United States

Here, an electrochemical/chemical route is introduced to deposit both textured and epitaxial films of methylammonium lead iodide (MAPbI₃) perovskites. The perovskite films are produced by chemical conversion of lead dioxide films that have been electrodeposited as either textured or epitaxial films onto [111]-textured Au and [100] and [111] single-crystal Au substrates. The epitaxial relationships for the MAPbI₃ films are MAPbI₃(001)[010]∥PbO₂(100)<001> and MAPbI₃(110)[111]∥PbO₂(100)<001> regardless of the Au substrate orientation, because the in-plane order of the converted film is controlled by the epitaxial PbO₂ precursor film. The textured and epitaxial MAPbI₃ films both have trap densities lower than and photoluminescence intensities higher than those of polycrystalline films produced by spin coating.

• Research Organization: Univ. of Missouri, Rolla, MO (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
• Grant/Contract Number: FG02-08ER46518
• OSTI ID: 1233974
• Alternate ID(s): OSTI ID: 1435589
• Journal Information: Chemistry of Materials, Journal Name: Chemistry of Materials Vol. 28 Journal Issue: 1; ISSN 0897-4756
• Publisher: American Chemical Society
• Country of Publication: United States
• Language: English

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