The invention relates to a material comprising a transparent substrate coated on one face with a stack of thin layers comprising successively from said face an alternation of three functional metal layers based on silver Ag1, Ag2 and Ag3 and four dielectric coatings. M1, M2, M3 and M4, of optical thicknesses respectively Eo1, Eo2, Eo3, Eo4, each dielectric coating comprising a dielectric layer or a dielectric assembly of layers, so that each functional metal layer is disposed between two dielectric coatings, said material being characterized in that: - absorbent material is present between the first functional layer Ag1 and the second functional layer Ag2, in a total thickness Abs2 such that 1.0 ≤ Abs2 ≤ 5.0 nm and / or material absorbent is present between the second functional layer Ag2 and the third functional layer Ag3, in a total thickness Abs3 such that 1.0 ≤ Abs3 ≤ 5, 0 nm; - absorbent material is present between the face of the substrate and the first functional layer Agi in a total thickness Abs1 such that 0.0 展开▼
