Elektroluminescerende anordning med forbedret katode

摘要

An internal junction electroluminescent device (100) is disclosed containing, in sequence, an anode (102,104), an organic hole injecting and transporting zone (106), an organic electron injecting and transporting zone (112) forming a junction (114) with the organic hole injecting and transporting zone (106), and a cathode (116) comprised of a layer contacting the organic electron injecting and transporting zone (106) containing a combination of magnesium and aluminum. Aluminum accounts for at least 80 percent of the cathode layer.