This invention pertains generally to the field of light-emitting diodes (LEDs). More particularly, this invention relates to polymer LEDs which offer high brightness, high efficiency and extended operating life, and which comprise (a) a transparent hole-injecting anode layer; (b) an emissive layer comprising...http://www.google.fr/patents/US6452218?utm_source=gb-gplus-shareBrevet US6452218 - Ultra-thin alkaline earth metals as stable electron-injecting electrodes for polymer light emitting diodes
Ultra-thin alkaline earth metals as stable electron-injecting electrodes for ...
