Process of localized electrografting onto photosensitive semiconductor substrates

摘要

A process for preparing an organic film on a selected zone at the surface of a photosensitive semiconductor substrate, including (i) bringing a liquid solution which includes at least one organic adhesion primer into contact with at least the selected zone; (ii) polarizing the surface of the substrate to an electric potential more cathodic than the reduction potential of the organic adhesion primer; and (iii) exposing the selected zone to light radiation, the energy of which is at least equal to that of the band gap of the photosensitive semiconductor substrate.