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Title: Epitaxial Electrodeposition of Methylammonium Lead Iodide Perovskites

Here, an electrochemical/chemical route is introduced to deposit both textured and epitaxial films of methylammonium lead iodide (MAPbI 3) 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 MAPbI 3 films are MAPbI 3(001)[010]∥PbO 2(100)<001> and MAPbI 3(110)[111]∥PbO 2(100)<001> regardless of the Au substrate orientation, because the in-plane order of the converted film is controlled by the epitaxial PbO 2 precursor film. The textured and epitaxial MAPbI 3 films both have trap densities lower than and photoluminescence intensities higher than those of polycrystalline films produced by spin coating.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Missouri Univ. of Science and Technology, Rolla, MO (United States)
Publication Date:
Grant/Contract Number:
FG02-08ER46518
Type:
Published Article
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 28; Journal Issue: 1; Journal ID: ISSN 0897-4756
Publisher:
American Chemical Society (ACS)
Research Org:
Univ. of Missouri, Rolla, MO (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1233974
Alternate Identifier(s):
OSTI ID: 1435589