| abstract |
The invention relates to a substrate (1) for organic electroluminescent device (10), comprising a lower electrode coating (3) consisting of a stack of thin layers comprising successively at least: a contact layer (31) of oxide and / or metal nitride, a metallic functional layer (32) with intrinsic property of electrical conductivity, based on a pure material chosen from silver, gold, aluminum, copper, or based on said alloy or doped material; an overcoat (34) based on metal oxide and / or metal nitride, in particular for adjusting the output work for said electrode coating, said substrate having a bottom layer (2), said bottom layer (2) covering said main face (11) and has on the overlay (34) an RMS roughness of less than or equal to 3 nm, preferably less than or equal to 2 nm, or even less than or equal to 1 nm. Figure of the abstract: Figure 1 |