Patent ID: 6850003

Claim:
A method of fabricating an organic light-emitting device, which method comprises the steps of: providing a substrate comprising a first electrode and a glass or a plastics material; either forming by self-assembly at least one polymer layer over the first electrode and forming other than by self-assembly at least one layer of organic light emissive material over the at least one polymer layer; and forming a second electrode for the device over the at least one layer of organic light emissive material; or forming other than by self-assembly at least one layer of organic light emissive material over the first electrode and forming by self-assembly at least one polymer layer over the at least one layer of organic light emissive material; and forming a second electrode for the device over the at least one polymer layer; and removing physisorbed water from the surface of the substrate prior to forming the at least one polymer layer, wherein the physisorbed water is removed by heating.