Three-State Near-Infrared Electrochromism at the Molecular Scale

Self-assembled monolayer films of a cyclometalated ruthenium complex with a redox-active amine substituent and three carboxylic acid groups have been prepared on ITO electrode surfaces. The obtained thin films show three-state electrochromic switching with low electrochemical potential inputs and hi...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2015-04, Vol.137 (12), p.4058-4061
Main Authors: Cui, Bin-Bin, Zhong, Yu-Wu, Yao, Jiannian
Format: Article
Language:English
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Summary:Self-assembled monolayer films of a cyclometalated ruthenium complex with a redox-active amine substituent and three carboxylic acid groups have been prepared on ITO electrode surfaces. The obtained thin films show three-state electrochromic switching with low electrochemical potential inputs and high near-infrared absorbance outputs. Thanks to the long retention time of each oxidation states, these films have been used to demonstrate surface-confined flip-flop memory functions with high ON/OFF ratios at the molecular scale.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.5b00586