Abstract:
A method of improving the electrical characteristics of a thin film (1 or 9) formed on a substrate (3 or 11) by a Langmuir-Blodgett process. The method comprises immersing the film (1 or 9) in a fluid (5 or 13) and applying an electrical potential to the substrate (1 or 9) such that a self limiting electrochemical reaction within the fluid (5 or 13) causes any voids in the film (1 or 9) to be preferentially filled.
Abstract:
A multi-layer Langmuir-Blodgett film having non-linear optical properties is described. Alternate layers of the film are composed of first and second elongate chromophore molecules extending transverse to the plane of the film in a Y-configuration. The molecules are sythesised so that when deposited in a Y-configuration they are non-centrosymmetric and therefore exhibit significant optical nonlinearity.