Electrochromic Metallo-Organic Nanoscale Films: Fabrication, Color Range, and Devices

Neta Elool Dov, Sreejith Shankar, Dana Cohen, Tatyana Bendikov, Katya Rechav, Linda J.W. Shimon, Michal Lahav, Milko van der Boom

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)11471-11481
Number of pages11
JournalJournal of the American Chemical Society
Volume139
Issue number33
DOIs
Publication statusPublished - Aug 23 2017

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Color
Fabrication
Equipment and Supplies
Coatings
Coordination Complexes
Palladium
Chromophores
Metal complexes
Oxides
Metal ions
Salts
Metals
Ligands
Ions
Substrates

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Electrochromic Metallo-Organic Nanoscale Films : Fabrication, Color Range, and Devices. / Elool Dov, Neta; Shankar, Sreejith; Cohen, Dana; Bendikov, Tatyana; Rechav, Katya; Shimon, Linda J.W.; Lahav, Michal; van der Boom, Milko.

In: Journal of the American Chemical Society, Vol. 139, No. 33, 23.08.2017, p. 11471-11481.

Research output: Contribution to journalArticle

Elool Dov, N, Shankar, S, Cohen, D, Bendikov, T, Rechav, K, Shimon, LJW, Lahav, M & van der Boom, M 2017, 'Electrochromic Metallo-Organic Nanoscale Films: Fabrication, Color Range, and Devices', Journal of the American Chemical Society, vol. 139, no. 33, pp. 11471-11481. https://doi.org/10.1021/jacs.7b04217
Elool Dov N, Shankar S, Cohen D, Bendikov T, Rechav K, Shimon LJW et al. Electrochromic Metallo-Organic Nanoscale Films: Fabrication, Color Range, and Devices. Journal of the American Chemical Society. 2017 Aug 23;139(33):11471-11481. https://doi.org/10.1021/jacs.7b04217
Elool Dov, Neta ; Shankar, Sreejith ; Cohen, Dana ; Bendikov, Tatyana ; Rechav, Katya ; Shimon, Linda J.W. ; Lahav, Michal ; van der Boom, Milko. / Electrochromic Metallo-Organic Nanoscale Films : Fabrication, Color Range, and Devices. In: Journal of the American Chemical Society. 2017 ; Vol. 139, No. 33. pp. 11471-11481.
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