ORGANIC ELECTROLUMINESCENT DEVICES

摘要

An electroluminescent (EL) device containing a light-emitting organic film, arranged between an anode material and a cathode material such that under an applied voltage, the device is forward biased and holes are injected from the anode material into the organic film adjacent to the anode material and electrons are injected from the cathode material into the organic film adjacent to the cathode material, resulting in light emission from the light-emitting organic film; wherein the device also contains a solution-processed film of a blend of an acid-functional non-conductive polymer and a conductive polymer positioned between the anode material and the light-emitting organic film, wherein the weight ratio of non-conducting polymer to conducting polymer is at least 0.75:1.