Observation of Oriented Molecular Assemblies on ITO Surfaces Using Porphyrin Derivatives Bearing Carboxyl Groups and Their Electrochemical Responses

抄録

Control of the molecular orientation and its in situ observation have successfully been carried out. The attachment of porphyrin derivatives bearing non-, one-, and four-carboxyl groups on ITO electrode surfaces was monitored using time-resolved enhancement evanescent wave electro-absorption spectroscopy. The stability of the porphyrin self-assembled monolayers was also determined by the combination of cyclic voltammetry and evanescent wave electronic spectroscopy measurements.