ELECTRODES FOR ORGANIC ELECTROLUMINESCENCE USING HIGH FIELD EMISSION
Original Publication Date: 1986-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Xerox Disclosure Journal
Electroluminesence from organic materials has been suggested for a light source for image bars or as an organic light emitting diode (LED) Until recently, a major obstacle in utilizing this technology has been the dlficulty of injecting both signed carriers into these materials. In the case of blue emitting materials, electrons are more difficult to inject than holes, and require extremely low work function metals such as sohum or potassium. These latter electrodes are not practical for a variety of reasons including irreproducibility, stability, and hazard level. Thus, it is desired to inject charge carriers into organic insulator or semiconductors which will allow the electrical characteristics of these materials to be utilized.