TRANSPARENT ELECTRODES FOR SEMICONDUCTOR THIN FILM DEVICES

摘要

A method of producing a transparent electrode suitable for use in an organic semiconductor photovoltaic device. First and second silanes (3) are deposited from the vapour phase on a substrate (1) and bind to the surface of the substrate. A metal film (4) is then deposited from the vapour phase and binds to both the first and second silanes so as to produce a transparent metal layer having a thickness which is no greater than about 15 nanometres. The first silane is a non-amino functional silane and the second silane is an aminofunctional silane. The electrode may be flexible, using a polymer substrate (1). The metal film (4) may be provided with a plurality of apertures (5), provided for example by masking the substrate with microspheres (2) while depositing the metal and subsequently removing the microspheres, and / or annealing the metal so that apertures appear.