A STUDY OF PHOTOELECTROCHEMICAL DEPOSITION OF ORGANIC LAYERS ON SOL-GEL TIO2 SURFACES

Photoactive TiO2 surface layers were prepared by the sol-gel process. Their photoelectric activities were judged from measured effective qua ntum yields of photocurrent. It was found that the photoelectrochemica l deposition of o-toluidine, pyrrole, and aniline takes place on these surface layers. Changes of hydrophilic-hydrophobic surface nature acc ompanied with the photoelectrochemical deposition of organic layers we re evaluated by measuring contact angle of water drop.