ORGANIC ELECTROLUMINESCENT DEVICES HAVING STABILITY-ENHANCING LAYERS

摘要

An organic light-emitting device with enhanced operational stability includes an anode, a hole-transporting layer disposed over the anode, and a light-emitting layer disposed over the hole-transporting layer for producing light in response to hole-electron recombination, wherein the light-emitting layer includes at least one organic host material and one organic luminescent dopant material. The device also includes a stability-enhancing layer disposed in contact with the light-emitting layer, wherein the stability-enhancing layer includes at least one organic host material and one inorganic dopant material, an electron-transporting layer disposed over the stability-enhancing layer, and a cathode disposed over the electron-transporting layer.