LIGHT-EMITTING DEVICE, AND METHOD FOR THE MANUFACTURE THEREOF

摘要

A light-emitting device comprising an anode; a cathode; a light-emitting layer arranged between said anode and said cathode; and a buffer layer, comprising a conducting polymer and a polymeric acid, arranged between said anode and said light-emitting layer, is disclosed. Acidic groups of said polymeric acid have been converted to non-acidic groups in at least a part of said buffer layer, which minimises acid quenching of photoluminescence. A method for manufacturing such a device is also disclosed.