Abstract
Thin films of poly[Ru(vbpy)2(py)2]2+ (vbpy is 4-vinyl-4‘-methyl-2,2‘-bipyridine; py is pyridine) have been deposited on electrodes by reductive electropolymerization. Photolysis of the films in the presence of chloride ion leads to photochemical loss of the pyridine ligands and sequential formation of poly[Ru(vbpy)2(py)Cl]+ and poly[Ru(vbpy)2Cl2], as determined by cyclic voltammetry and FTIR spectroscopy. Contact lithography was used to control the photosubstitution process spatially and form laterally resolved, bicomponent films with image resolution below 10 μm. Small spot X-ray photoelectron spectroscopy (XPS) was used to confirm that the photolyzed and nonphotolyzed regions of an imaged film were chemically distinct. Dramatic changes occur in the absorption spectra and redox potentials of the ruthenium complexes upon substitution of chloride for the pyridine ligands. This provides a basis for the fabrication of bicomponent, electrochromic film assemblies on optically transparent electrodes of tin dope...
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.
