Patent ID: 8828194

Claim:
Method for producing an annealable layer system wherein said method comprises: depositing a first layer sequence comprising a substrate-proximal blocking layer comprising NiCrOx, a first selective layer and a substrate-distal blocking layer comprising NiCrOx, either directly on a transparent substrate or on one or more bottom layers which are deposited on the substrate, wherein said depositing of said first layer sequence comprises: depositing a substrate-proximal blocking layer comprising NiCrOx directly on said substrate or on one or more bottom layers which are deposited on the substrate, depositing a first dielectric intermediate layer of ZnAlOx a gradient layer with a gradient that passes from a stoichiometric part of ZnAlO to a substoichiometric part of ZnAlOx and where the gradient points in a direction of the first selective layer, such that the substoichiometric part of the gradient layer lies on a side of the first selective layer, depositing a first selective layer on said first dielectric intermediate layer; and depositing a substrate-distal blocking layer comprising NiCrOx on said first selective layer.