Patent ID: 6222314
Filing Date: 2001-04-24
Classification: H01L

Abstract:
An organic electroluminescent device comprising a hole injecting electrode, an electron injecting electrode, at least one organic layer between the electrodes, and an inorganic insulating hole injecting layer between said hole injecting electrode and said at least one organic layer,said inorganic insulating hole injecting layer containing, as a main component, silicon oxide or germanium oxide or a mixture of silicon oxide and germanium oxide, the main component being represented by the formula: (Si.sub.1-x Ge.sub.x)O.sub.y wherein x is from 0 to 1 and y is from 1.7 to 2.2,said inorganic insulating hole injecting layer further containing at least one element selected from the group consisting of copper, iron, nickel, ruthenium, tin, and gold.