Photocurrent generation in peptide-based self-assembled monolayers on gold electrodes

The photocurrent generation properties of a self-assembled monolayer formed by a helical hexapeptide carrying a pyrene group at the C-terminus and chemisorbed on a gold electrode through a lipoyl chain have been investigated by means of photoelectrochemical experiments. Anodic and cathodic photocurrents have been measured by simply changing the redox-active electrolyte in the electrochemical cell.