Patent ID: 6404126
Filing Date: 2002-06-11
Classification: H01L,Y10S

Abstract:
An organic electroluminescent device comprising a substrate, a hole injecting electrode and an electron injecting electrode formed on the substrate, and an organic material-containing organic layer between the electrodes,said organic layer including a light emitting layer containing a conjugated polymer, said device further comprising an inorganic insulative electron injecting and transporting layer between said light emitting layer and said electron injecting electrode, said inorganic insulative electron injecting and transporting layer comprising at least one oxide selected from the group consisting of lithium oxide, rubidium oxide, potassium oxide, sodium oxide, and cesium oxide as a first component, at least one oxide selected from the group consisting of strontium oxide, magnesium oxide, and calcium oxide as a second component, and silicon oxide, germanium oxide or a mixture of silicon oxide and germanium oxide as a third component.