Light Emissive Device

A process for the manufacture of an organic light emissive device comprising:

• providing a device comprising an anode and an organic light emissive region;
• forming a cathode comprising a transparent bilayer over the light emissive region by (i) depositing a layer of a low work function metal having a work function of no more than 3.5 eV over the light emissive region and (ii) depositing a transparent silver layer on the layer of low work function metal;
• and
• depositing a transparent encapsulation layer over the bilayer in order to minimize exposure of the bilayer to oxygen and/or moisture,
• wherein the layer of low work function metal consists essentially of the low work function metal having a work function of no more than 3.5 eV and the transparent silver layer consists essentially of silver and the bilayer has a transparency in the device of at least 60%.