Forming an improved stability emissive layer from a donor element in an oled device

摘要

A method of forming an organic light-emitting device with improved stability including forming an anode (20) over a substrate (10), providing a cathode spaced from the anode, and providing a donor element (40) including light-emitting material (50) and positioning such donor element (40) in a material-transferring relationship with the substrate (10). The method further includes illuminating (42) the donor element (40) with radiation to cause the transfer of light-emitting material (50) to deposit the light-emitting material to form an emissive layer (26) over the anode (20), and forming an organic layer including an organic compound doped with a low work function metal or metal compound capable of acting as a donor dopant between the emissive layer and the cathode to lower the electron-injecting barrier from the organic layer into the emissive layer thereby improving the stability of the organic light-emitting device.