There are disclosed rare-earth metal containing electron-injecting electrodes which are particularly effective for use with organic LED devices used in electroluminescent structures and which may in particular be formed as transparent electrodes for use in transparent or surface emitting OLEDs....http://www.google.fr/patents/US8119254?utm_source=gb-gplus-shareBrevet US8119254 - Organic electroluminescent devices formed with rare-earth metal containing cathode
Organic electroluminescent devices formed with rare-earth metal containing ...