Sputtered cathode having a heavy alkaline metal halide-in an organic light-emitting device structure

摘要

An OLED device, including a substrate, an anode formed of a conductive material over the substrate, an emissive layer having an electroluminescent material provided over the anode, a buffer layer provided over the emissive layer and containing a halide of a heavy alkaline metal, and a sputtered layer of a metal or metal alloy selected to function with the buffer layer to inject electrons.