Substrate provided with a stack having thermal properties and an absorbent layer

A substrate coated with a stack of thin layers forming a functional coating which is constructed and arranged to act on solar radiation and/or infrared radiation, said functional coating comprising:

• two metallic functional layers comprising silver, each disposed between two dielectric material based coatings that each have a total thickness that is predominantly attributed to one or more dielectric materials, so as to comprise at least the sequence of layers—first dielectric material based coating Di1/first metallic functional layer F1/second dielectric material based coating Di2/second metallic functional layer F2/third dielectric material based coating Di3-starting from the substrate, each dielectric material based coating comprising at least one layer of dielectric material,
• at least two absorbent layers, each of which absorbs in the visible region, wherein each of the at least two absorbent layers is respectively selected from a layer consisting of a material selected from the group consisting of NbN, TiN, NiCrN, SnZnN, ZrN, Ti, NiCr, Nb and a mixture thereof, each absorbent layer of the at least two absorbent layers being disposed in a different dielectric material based coating, wherein a first absorbent layer of the at least two absorbent layers is displosed in the first dielectric material based coating Di1 and a second absorbent layer of the at least two absorbent layers is disposed in the second dielectric material based coating Di2,
• wherein each absorbent layer is separated from each of the two metallic functional layers by at least one dielectric layer, and wherein a geometric thickness of all dielectric layers separating each absorbent layer from each metallic functional layer is greater than or equal to 5 nm, and
• wherein a geometric thickness of the first absorbent layer is greater than a geometric thickness of the second absorbent layer.