RECENT ADVANCES IN HIGH QUANTUM YIELD DYE SENSITIZATION OF SEMICONDUCTOR ELECTRODES

Recent advances in the study of the dye sensitization of semiconductor electrodes are reviewed highlighting the characteristics of dye/semic onductor pairs with a high quantum yield, PHI, for electrons collected as current per photon absorbed by the dye. Photoelectrochemical data, picosecond fluorescence measurements, and flash photolysis results on high-PHI systems are discussed in relation to kinetic models of the i njection process in order to provide an overall evaluation of the curr ent state of the understanding of the events following excitation of a n excited dye adsorbed on a semiconductor surface.