Abstract
Low-density self-assembled monolayers (LD-SAMs) exhibit voltage-induced conformational changes leading to tunable wetting properties and ionic permeability. Here we investigate the role of solution conditions (pH, salt concentration, presence of acetonitrile) and surface coverage via nonfaradaic electrochemical impedance spectroscopy and contact angle measurements. We observe a large change in receding angle (32°) in an aqueous environment for an optimal combination of solution and film composition. This voltage-induced response in wetting properties is also correlated with a large change in dielectric properties as measured from electrochemical impedance spectroscopy. Our results demonstrate that the molecular nature of this responsive surface makes it particularly sensitive to solution conditions, a feature that could be exploited for sensing or detection.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
