TY - JOUR
T1 - Electrochromic Metallo-Organic Nanoscale Films
T2 - Fabrication, Color Range, and Devices
AU - Elool Dov, Neta
AU - Shankar, Sreejith
AU - Cohen, Dana
AU - Bendikov, Tatyana
AU - Rechav, Katya
AU - Shimon, Linda J.W.
AU - Lahav, Michal
AU - Van Der Boom, Milko E.
N1 - Funding Information:
This research was supported by the Helen and Martin Kimmel Center for Molecular Design, the Israel Science Foundation (ISF), the Irving and Cherna Moskowitz Center for Nano and Bio-Imaging, and the Gerhardt Schmidt Minerva Center on Supramolecular Architectures. N.E.D. is the recipient of the Pearlman Student Fellowship. M.E.v.d.B. is the holder of the Bruce A. Pearlman Professional Chair in Synthetic Organic Chemistry. We thank Dr. Sidney Cohen for carrying out the AFM measurements.
Publisher Copyright:
© 2017 American Chemical Society.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/8/23
Y1 - 2017/8/23
N2 - In this study, we demonstrate a versatile approach for the formation of electrochromic nanoscale assemblies on transparent conductive oxides on both rigid and flexible substrates. Our method is based on the application of alternating spin-coated layers of well-defined metal polypyridyl complexes and a palladium(II) salt to form electrochemically addressable films with a high chromophore density. By varying the central metal ion of the polypyridyl complexes (Os, Ru, and Fe) and their ligands and by mixing these complexes, coatings with a wide range of colors can be achieved. These coatings cover a large area of RGB color space. The coloration intensities of these nanoscale films can be tuned by the number of deposition steps. The materials have very attractive ON/OFF ratios, electrochemical stabilities, and coloration efficiencies. Reversible color-to-colorless and color-to-color transitions were demonstrated, and the films were further integrated into sandwich cells.
AB - In this study, we demonstrate a versatile approach for the formation of electrochromic nanoscale assemblies on transparent conductive oxides on both rigid and flexible substrates. Our method is based on the application of alternating spin-coated layers of well-defined metal polypyridyl complexes and a palladium(II) salt to form electrochemically addressable films with a high chromophore density. By varying the central metal ion of the polypyridyl complexes (Os, Ru, and Fe) and their ligands and by mixing these complexes, coatings with a wide range of colors can be achieved. These coatings cover a large area of RGB color space. The coloration intensities of these nanoscale films can be tuned by the number of deposition steps. The materials have very attractive ON/OFF ratios, electrochemical stabilities, and coloration efficiencies. Reversible color-to-colorless and color-to-color transitions were demonstrated, and the films were further integrated into sandwich cells.
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U2 - 10.1021/jacs.7b04217
DO - 10.1021/jacs.7b04217
M3 - Article
C2 - 28702992
AN - SCOPUS:85028091050
VL - 139
SP - 11471
EP - 11481
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 33
ER -