期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 139, 期 33, 页码 11471-11481出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b04217
关键词
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资金
- Helen and Martin Kimmel Center for Molecular Design
- Israel Science Foundation (ISF)
- Irving and Cherna Moskowitz Center for Nano and Bio-Imaging
- Gerhardt Schmidt Minerva Center on Supramolecular Architectures
- Pearlman Student Fellowship
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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