EP4172123A1 - Materiau comportant un empilement a sous-couche dielectrique fine d'oxide a base de zinc et procede de depot de ce materiau - Google Patents
Materiau comportant un empilement a sous-couche dielectrique fine d'oxide a base de zinc et procede de depot de ce materiauInfo
- Publication number
- EP4172123A1 EP4172123A1 EP21740593.5A EP21740593A EP4172123A1 EP 4172123 A1 EP4172123 A1 EP 4172123A1 EP 21740593 A EP21740593 A EP 21740593A EP 4172123 A1 EP4172123 A1 EP 4172123A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- zinc
- silicon
- zno
- sublayer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 title claims abstract description 34
- 229910052725 zinc Inorganic materials 0.000 title claims description 72
- 239000011701 zinc Substances 0.000 title claims description 72
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 71
- 238000000034 method Methods 0.000 title claims description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 204
- 239000010410 layer Substances 0.000 claims abstract description 133
- 239000011787 zinc oxide Substances 0.000 claims abstract description 99
- 239000002346 layers by function Substances 0.000 claims abstract description 90
- 239000000758 substrate Substances 0.000 claims abstract description 61
- UVGLBOPDEUYYCS-UHFFFAOYSA-N silicon zirconium Chemical compound [Si].[Zr] UVGLBOPDEUYYCS-UHFFFAOYSA-N 0.000 claims abstract description 29
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 47
- 229910052710 silicon Inorganic materials 0.000 claims description 47
- 239000010703 silicon Substances 0.000 claims description 47
- 238000000576 coating method Methods 0.000 claims description 44
- 150000004767 nitrides Chemical class 0.000 claims description 40
- 229910052760 oxygen Inorganic materials 0.000 claims description 30
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 239000001301 oxygen Substances 0.000 claims description 29
- 239000004332 silver Substances 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 27
- 229910052709 silver Inorganic materials 0.000 claims description 27
- 229910052782 aluminium Inorganic materials 0.000 claims description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 21
- 239000006117 anti-reflective coating Substances 0.000 claims description 21
- 230000005855 radiation Effects 0.000 claims description 21
- 239000012298 atmosphere Substances 0.000 claims description 18
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 17
- 229910052719 titanium Inorganic materials 0.000 claims description 17
- 239000010936 titanium Substances 0.000 claims description 17
- 238000011282 treatment Methods 0.000 claims description 17
- 239000011521 glass Substances 0.000 claims description 11
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- 229910052726 zirconium Inorganic materials 0.000 claims description 8
- 230000008021 deposition Effects 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 229910020776 SixNy Inorganic materials 0.000 abstract 2
- 229910003087 TiOx Inorganic materials 0.000 abstract 1
- HLLICFJUWSZHRJ-UHFFFAOYSA-N tioxidazole Chemical compound CCCOC1=CC=C2N=C(NC(=O)OC)SC2=C1 HLLICFJUWSZHRJ-UHFFFAOYSA-N 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 38
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 34
- 229910052757 nitrogen Inorganic materials 0.000 description 20
- 229910052786 argon Inorganic materials 0.000 description 17
- 239000012300 argon atmosphere Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 238000013532 laser treatment Methods 0.000 description 8
- 238000000151 deposition Methods 0.000 description 6
- 239000002356 single layer Substances 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 3
- 102200056507 rs104894175 Human genes 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 229910001316 Ag alloy Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000009964 serging Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3618—Coatings of type glass/inorganic compound/other inorganic layers, at least one layer being metallic
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3626—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer one layer at least containing a nitride, oxynitride, boronitride or carbonitride
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3642—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating containing a metal layer
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3644—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the metal being silver
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
- C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
- C03C17/366—Low-emissivity or solar control coatings
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/90—Other aspects of coatings
- C03C2217/94—Transparent conductive oxide layers [TCO] being part of a multilayer coating
- C03C2217/944—Layers comprising zinc oxide
Definitions
- MATERIAL INCLUDING A FINE DIELECTRIC ZINC-BASED OXIDE UNDERLAYMENT STACK AND PROCESS FOR DEPOSITING THIS MATERIAL
- the invention relates to a material comprising a glass substrate coated on one side with a stack of thin layers having reflection properties in the infrared and / or solar radiation having at least one metallic functional layer, in particular based on silver or containing metal alloy of silver and at least two antireflection coatings, said antireflection coatings each comprising at least one dielectric layer, said functional layer being placed between the two antireflection coatings.
- the single, or each, metallic functional layer is thus placed between two antireflection coatings each generally comprising several layers which are each made of a dielectric material of the nitride type, and in particular of silicon or silicon nitride. aluminum, or oxide. From an optical point of view, the purpose of these coatings which surround the or each metallic functional layer is to "antireflect" this metallic functional layer.
- this radiation treatment of the stack does not structurally modify the substrate.
- the invention is based on the discovery of a particular configuration of layers surrounding a metallic functional layer which makes it possible to reduce the resistance per square at the same functional layer thickness, or even to reduce the functional layer thickness in order to obtain improved thermal properties, and this after a heat treatment of the material or a radiation treatment of the stack according to known techniques.
- An aim of the invention is thus to achieve the development of a new type of stack of layers with one or more functional layers, a stack which has, after heat treatment of the material or treatment of the stack with radiation, a low resistance per square (and therefore low emissivity), high light transmission, as well as uniformity of appearance, both in transmission and in reflection.
- This material comprises a glass substrate coated on one face with a stack of thin layers with reflection properties in the infrared and / or in the solar radiation comprising at least one metallic functional layer, in particular based on silver or metallic alloy containing silver and at least two antireflection coatings, said antireflection coatings each comprising at least one dielectric layer, said functional layer being arranged between the two antireflection coatings, said material being remarkable: - on the one hand in that said said underlying antireflection coating, located under said functional layer towards said substrate, comprises:
- a zinc ZnO-based oxide sublayer which is located under and in contact with said functional layer, with a physical thickness of said ZnO zinc-based oxide sublayer which is between 0.3 and 5.0 nm, or even between 0.3 and 4.4 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm;
- a silicon-zirconium-based nitride Si x N y Zrz dielectric sublayer which is located under and in contact with said zinc-based oxide sublayer ZnO, with a physical thickness of said sublayer of silicon-zirconium nitride Si x N y Zrz which is between 5.0 and 50.0 nm, or even between 10.0 and 40.0 nm, or even between 15.0 and 25.0 nm;
- a primary dielectric sub-layer of silicon-based nitride S13N4 which is located under and in contact with said sub-layer of silicon-zirconium-based nitride Si x N y Zrz, with a physical thickness of said dielectric sub-layer primer of silicon-based nitride S13N4 which is between 5.0 and 30.0 nm, or even between 5.0 and 20.0 nm, or even between 5.0 and 10.0 nm;
- said overlying anti-reflective coating located above said functional layer opposite said substrate, comprises:
- an oxide overlay based on zinc ZnO with a physical thickness of said zinc-based oxide ZnO overlay which is between 2.0 and 10.0 nm, or even between 2.0 and 8.0 nm, or even between 2.5 and 5.4 nm;
- a dielectric overlayer which is located on said zinc-based oxide overlayer ZnO and, preferably a silicon-based nitride dielectric overlayer, S13N 4
- a titanium based oxide TiO x overblocking layer is located on and in contact with said functional layer and under said overlying anti-reflective coating, with a physical thickness of said blocking layer of titanium-based oxide TiO x which is between 0.3 and 5.0 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm.
- Said zinc-based oxide sublayer is the very thin layer mentioned above: it has a thickness corresponding to a minimum of a mono-molecular layer of ZniOi and a maximum thickness of only a few nanometers.
- the zinc oxide is neither substoichiometric nor superstoichiometric, in order to have the lowest possible absorption coefficient in the visible range; this simplifies the manufacture and control of the effects of heat treatment of the material or the effects of treatment of the stack with radiation.
- Said primary silicon nitride dielectric sublayer is a barrier layer which prevents the penetration of elements from the substrate towards the metallic functional layer during processing.
- Said titanium-based oxide overblocking layer TiO x may in particular have a physical thickness which is between 0.3 and 4.9 nm, or even between 0.3 and 3.9 nm, or even between 0.3 and 2.9 nm; it may also have a physical thickness which is between 1.0 and 4.9 nm, or even between 1.0 and 3.9 nm, or even between 1.0 and 2.9 nm.
- Said titanium-based oxide overblocking layer TiO x may in particular contain only the two elements: titanium and oxygen; this simplifies the manufacture and the control of the effects of the heat treatment of the material or the effects of the treatment of the stack with radiation.
- Said stack may comprise a single metallic functional layer or may comprise two metallic functional layers, or three metallic functional layers, or four functional layers metallic; the metallic functional layers in question here are continuous layers.
- said material does not include a discontinuous metallic functional layer; in fact, such a discontinuous metallic functional layer does not withstand heat treatment of the material or treatment of the stack with radiation without changing its state, and such a change in state is difficult to control.
- each functional layer is according to the previous indication, with:
- said underlying anti-reflective coating located under and in contact with each functional layer which comprises, in the direction of said substrate:
- a zinc ZnO-based oxide sublayer which is located under and in contact with said functional layer, with a physical thickness of said ZnO zinc-based oxide sublayer which is between 0.3 and 5.0 nm, or even between 0.3 and 4.4 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm;
- a silicon-zirconium-based nitride Si x N y Zrz dielectric sublayer which is located under and in contact with said zinc-based oxide sublayer ZnO, with a physical thickness of said sublayer of silicon-zirconium nitride Si x N y Zrz which is between 5.0 and 50.0 nm, or even between 10.0 and 40.0 nm, or even between 15.0 and 25.0 nm;
- a primary dielectric sub-layer of silicon-based nitride S13N4 which is located under and in contact with said sub-layer of silicon-zirconium-based nitride Si x N y Zrz, with a physical thickness of said dielectric sub-layer primer of silicon-based nitride S13N4 which is between 5.0 and 30.0 nm, or even between 5.0 and 20.0 nm, or even between 5.0 and 10.0 nm;
- said overlying anti-reflective coating located above and in contact with each functional layer, which comprises, opposite said substrate:
- a zinc-based oxide overlayer ZnO with a physical thickness of said zinc-based oxide ZnO overlayer which is between 2.0 and 10.0 nm, or even between 2.0 and 8.0 nm or even between 2.5 and 5.4 nm; and a dielectric overlayer which is located on said zinc-based oxide overlayer ZnO and, preferably a silicon-based nitride dielectric overlayer, S13N4
- each oxide blocking layer at titanium base TiO x which is between 0.3 and 5.0 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm.
- each antireflection coating located between two metallic functional layers has both an overlying antireflection part, with respect to the functional layer located below and at the same time an underlying antireflection part, for example. compared to the functional layer above.
- Said metallic functional layer, or each metallic functional preferably has a physical thickness which is between 8.0 and 22.0 nm, or even between 9.0 and 16.0 nm, or even between 9.5 and 12.4 nm .
- a metallic functional layer preferably comprises, at least 50% in atomic ratio, at least one of the metals chosen from the list: Ag, Au, Cu, Pt; one, more, or each, metallic functional layer is preferably silver.
- metal layer within the meaning of the present invention, it should be understood that the layer is absorbent as indicated above and that it does not contain an oxygen atom or a nitrogen atom.
- dielectric layer within the meaning of the present invention, it should be understood that from the point of view of its nature, the material is" non-metallic, that is to say is not a metal.
- this term denotes a material exhibiting an n / k ratio over the entire visible wavelength range (from 380 nm to 780 nm) equal to or greater than 5.
- n denotes the actual refractive index of the material at a given wavelength and the coefficient k represents the imaginary part of the refractive index at a given wavelength; the ratio n / k being calculated at a given wavelength identical for n and for k.
- the term “in contact” means that no layer is interposed between the two layers considered.
- the term “based on” means that for the composition of this layer, the reactive elements oxygen or nitrogen, or both if they are both present, are not considered and the non-reactive element or the reactive elements (for example silicon or zinc or even silicon and zirconium together) which is indicated as constituting the base, is present at more than 85 atomic% of the total of the non-reactive elements in the layer.
- This expression thus includes what is commonly referred to in the technique under consideration as “doping”, while the doping element, or each doping element, can be present in an amount of up to 10 atomic%, but without the doping element. total dopant does not exceed 15 atomic%.
- said silicon-zirconium nitride dielectric sublayer Si x N y Zrz has an atomic ratio of silicon to zirconium, x / z, of between 2.2 and 5.6, or even between 2.9 and 5.6, or even between 3.0 and 4.8; thus, its index is slightly higher, of the order of 0.2 to 0.5, than that of said primary dielectric sublayer of silicon-based nitride S13N4; more preferably, said silicon-zirconium-based nitride dielectric sublayer Si x N y Zrz does not contain oxygen.
- said underlying antireflection coating, located under said functional layer, and / or said overlying antireflection coating, located above said functional layer does not include any layer in the metallic state. In fact, it is not desirable for such a layer to be able to react, and in particular to oxidize, during the treatment.
- said underlying antireflection coating, located under said functional layer, and / or said overlying antireflection coating, located above said functional layer does not include any absorbent layer;
- absorbent layer within the meaning of the present invention, it should be understood that the layer is a material exhibiting an average k coefficient, over the entire visible wavelength range (from 380 nm to 780 nm), greater than 0 , 5 and exhibiting an electrical resistivity in the bulk state (as known in the literature) which is greater than 10 5 Q.cm.
- said silicon-based nitride dielectric sublayer S13N4 does not include zirconium.
- said dielectric sublayer based on silicon nitride S13N4 does not contain oxygen.
- said underlying antireflection coating located under said functional layer, further comprises an additional dielectric intermediate sublayer, located between said silicon-based nitride dielectric sublayer S13N4 and said face, this sublayer.
- an additional dielectric intermediate layer being oxidized (ie comprising oxygen) and preferably comprising: a mixed oxide of zinc and tin or a titanium oxide TiO x .
- This dielectric intermediate sub-layer is preferably located in contact with the dielectric sub-layer of silicon-based nitride S13N4.
- Said zinc-based oxide ZnO sub-layer and / or said zinc-based oxide ZnO overcoat preferably consists of zinc oxide ZnO doped with aluminum, that is to say that it does not contain any element other than Zn, Al and O.
- said overlying antireflection coating located above said functional layer, further comprises a dielectric intermediate overlayer located between said zinc-based oxide ZnO overlayer and said dielectric overlayer, this dielectric intermediate overlayer being oxidized and preferably comprising: a titanium oxide TiO x or a mixed oxide of zinc and tin.
- the present invention also relates to a multiple glazing comprising a material according to the invention, and at least one other substrate, the substrates being held together by a frame structure, said glazing forming a separation between an exterior space and an interior space. , in which at least one interleaving gas blade is disposed between the two substrates.
- Each substrate can be clear or colored. At least one of the substrates, in particular, can be made of glass colored in the mass. The choice of the type of coloration will depend on the level of light transmission and / or the colorimetric aspect sought for the glazing once its manufacture has been completed.
- a glazing substrate in particular the substrate carrying the stack, can be bent and / or tempered after the stack has been deposited. It is preferable in a multiple glazing configuration that the stack is arranged so that it faces the side of the interleaving gas layer.
- the glazing can also be a triple glazing consisting of three sheets of glass separated two by two by a gas layer.
- the substrate carrying the stack may be on face 2 and / or on face 5, when it is considered that the incident direction of sunlight passes through the faces in increasing order of their number. .
- Said dielectric overlayer which is located on said zinc-based oxide ZnO overlayer, and which is preferably a silicon-based nitride dielectric overlayer, S1 3 N 4 may have a thickness between 5.0 and 50.0 nm, or even between 10.0 and 45.0 nm, or even between 25.0 and 45.0 nm.
- the present invention also relates to a process for obtaining or manufacturing a material comprising a glass substrate coated on one face with a stack of thin layers with reflection properties in the infrared and / or in the infrared.
- solar radiation comprising at least one metallic functional layer, in particular based on silver or a metal alloy containing silver and two anti-reflection coatings, said anti-reflection coatings each comprising at least one dielectric layer, said functional layer being arranged between the two antireflection coatings
- said method comprising the following steps, in order: the deposition on one face of said substrate of a stack of thin layers with reflection properties in the infrared and / or in solar radiation comprising at least a metallic functional layer, in particular based on silver or a metallic alloy containing silver and at least two anti-reflective coatings, in order to form mer a material according to the invention, then - treating said stack of thin layers with a source producing radiation and in particular infrared radiation, in order to treat the stack of thin layers as
- Said treatment is preferably carried out in an atmosphere not comprising oxygen.
- Said ZnO zinc-based oxide sublayer is preferably deposited from a ceramic target comprising ZnO and in an atmosphere not comprising oxygen or comprising at most 10.0% oxygen.
- FIG. 1 illustrates a structure of a functional monolayer stack according to the invention, the functional layer being deposited directly on an oxide sublayer based on zinc ZnO and directly under an oxide sublayer based on zinc ZnO , the stack being illustrated during processing using a radiation producing source;
- FIG. 2 illustrates a structure of a functional bilayer stack according to the invention, each functional layer being deposited directly on an oxide sublayer based on zinc ZnO and directly under an oxide sublayer based on zinc ZnO. , the stack being illustrated during processing using a radiation producing source;
- FIG. 3 illustrates double glazing incorporating a stack according to the invention
- FIG. 4 illustrates a triple glazing incorporating two stacks according to the invention
- FIG. 1 illustrates a structure of a functional monolayer stack 14 according to the invention deposited on a face 29 of a transparent glass substrate 30, in which the single functional layer 140, in particular at base of silver or metallic alloy containing silver, is disposed between two antireflection coatings, the underlying antireflection coating 120 located below the functional layer 140 towards the substrate 30 and the overlying antireflection coating 160 disposed above the functional layer 140 opposite the substrate 30.
- These two antireflection coatings 120, 160 each comprise at least one dielectric layer 125, 127, 129; 161, 163, 165.
- the antireflection coating 120 located under the functional layer 140 towards the substrate 30 comprises: - a zinc-based oxide sublayer, ZnO 129 which is located under and in contact with the functional layer 140, with a physical thickness of the sublayer based on zinc oxide ZnO 129 which is between 0.3 and 5.0 nm, or even between 0.3 and 4.4 nm, or even between 0.3 and 2, 9 nm, or even between 0.5 and 2.4 nm, or even between 1.0 and 3.0 nm, or even between 1.5 and 2.4 nm; and - a dielectric sub-layer of nitride based on silicon-zirconium
- the antireflection coating 160 located above the functional layer 140 opposite the substrate 30 comprises:
- a zinc-based oxide overlayer, ZnO 161 with a physical thickness of the zinc-based oxide overlayer, ZnO 161 which is between 2.0 and 10.0 nm, or even between 2.0 and 8.0 nm, or even between 2.5 and 5.4 nm; and - a dielectric overlayer 165 which is located on the zinc-based oxide overlayer, ZnO 161 and, preferably a silicon-based nitride dielectric overlayer, S13N 4 ;
- an overblocking layer of titanium-based oxide TiO x 150 which is located on and in contact with the functional layer 140 and under the overlying anti-reflective coating 160, with a physical thickness of the titanium-based oxide blocking layer TiO x 150 which is between 0.3 and 5.0 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm.
- FIG. 2 illustrates a structure of a functional bilayer stack 14 according to the invention deposited on a face 29 of a transparent glass substrate 30, in which the functional layers 140, 180, in particular based on silver or on metal alloy containing silver, are disposed between two antireflection coatings, the underlying antireflection coating 120 located below the functional layer 140 closest to the face 29 of the substrate 30, the intermediate antireflection coating 160 is located between the two functional layers and the overlying antireflection coating 200 disposed above the functional layer 180 furthest from the face 29 of the substrate 30.
- These three antireflection coatings 120, 160, 200 each comprise at least one dielectric layer 125, 127 , 129; 161, 165, 167, 169; 201, 205.
- FIG. 2 illustrates a structure of a functional bilayer stack 14 according to the invention deposited on a face 29 of a transparent glass substrate 30, in which the functional layers 140, 180, in particular based on silver or on metal alloy containing silver, are disposed between two antire
- the anti-reflective coating located under and in contact with each functional layer 140, 180 comprises, in the direction of the substrate:
- the antireflection coating located above and in contact with each functional layer comprises, opposite the substrate:
- a zinc-based oxide overlayer ZnO 161, 201 with a physical thickness of the zinc-based oxide ZnO overlayer which is between 2.0 and 10.0 nm, or even between 2.0 and 8 , 0 nm, or even between 2.5 and 5.4 nm; and
- dielectric overlayer 205 which is located on the zinc-based oxide overlayer ZnO, 201 and preferably this dielectric overlayer is silicon-based nitride, S13N 4
- an overblocking layer of titanium-based oxide TiO x 150, 190 which is located on and in contact with each functional layer 140, 180 and under each overlying anti-reflective coating 160, 200, with a physical thickness of the titanium-based oxide blocking layer TiO x 150, 190 which is between 0.3 and 5.0 nm, or even between 0.3 and 2.9 nm, or even between 0.5 and 2.4 nm.
- the functional layer 140 is located directly over the underlying anti-reflective coating 120 and indirectly under the overlying anti-reflective coating 160, 200: there is no sub-blocking coating located between the underlying anti-reflective coating 120 and the functional layer 140 but there is an overblocking coating located between the functional layer 140 and the antireflection coating 160, 200, here comprising the titanium based oxide overblocking layer TiO x 150, 190.
- This is the case. preferably the same for the other functional layers possibly present: it is in direct contact with the antireflection coating located directly below and an overlocking layer is interposed between it and the antireflection coating located above.
- the anti-reflective coating 160 located above the single metallic functional layer in Figure 1 may terminate by an end protective layer (not illustrated), called an “overcoat” in English, which is the layer of the stack which is the furthest from the face 29.
- Such a stack of thin layers can be used in a multiple glazing 100 providing a separation between an external space ES and a space interior IS; this glazing may have a structure:
- this glazing is then made up of two substrates 10, 30 which are held together by a frame structure 90 and which are separated from each other by an intermediate gas layer 15 ;
- this glazing then consists of three substrates 10, 20, 30, separated two by two by an intermediate gas layer 15, 25, the whole being held together by a frame structure 90
- the incident direction of sunlight entering the building is illustrated by the double arrow on the left.
- the stack 14 of thin layers can be positioned on face 3 (on the innermost sheet of the building, considering the incident direction of the sunlight entering the building and on its face facing the strip. gas), that is to say on an interior face 29 of the substrate 30 in contact with the intermediate gas sheet 15, the other face 31 of the substrate 30 being in contact with the interior space IS.
- one of the substrates has a laminated structure.
- FIG. 4 there are two stacks of thin layers, preferably identical:
- a stack 14 of thin layers is positioned on face 2 (on the outermost sheet of the building considering the incident direction of sunlight entering the building and on its face facing the gas layer), c 'that is to say on an interior face 11 of the substrate 10 in contact with the intermediate gas layer 15, the other face 9 of the substrate 10 being in contact with the exterior space ES;
- a first series of examples has been produced on the basis of the stacking structure illustrated in FIG. 1 with, starting from surface 29, only the following layers, in this order:
- a zinc-based oxide sublayer, ZnO 129 of varying physical thickness, 1.0 nm or 5.0 nm, deposited from a ceramic target consisting of 49 atomic% zinc and 49 atomic% oxygen and doped with 2% aluminum, in an argon atmosphere and under a pressure of 2.10 3 mbar;
- an oxide overblocking layer based on titanium TiO x 150 which is located on the functional layer 140, with a physical thickness of 0.7 nm, deposited from a target in titanium dioxide in an atmosphere at 5% oxygen out of the total oxygen and argon and under a pressure of 2.10 3 mbar;
- a zinc-based oxide overcoat ZnO 161 with a physical thickness of 5 nm, deposited from a ceramic target consisting of 49 atomic% zinc and 49 atomic% oxygen and doped with aluminum at 2%, in an argon atmosphere and under a pressure of 2.10 3 mbar;
- the resistance per square of this stack with a 5.0 nm ZnO 129 zinc-based oxide sublayer was measured at 4.3 ohms per square and that of the stack with a ZnO 129-based sublayer.
- the 1.0 nm zinc oxide ZnO 129 was measured at 5.0 ohms per square.
- the resistance per square of the stack with an underlayer of zinc oxide ZnO 129 of 5.0 nm was measured at 2.8 ohms per square and that of the stack with an underlayer.
- the 1.0 nm ZnO 129 based zinc oxide layer was measured at 2.9 ohms per square.
- a silicon-zirconium nitride dielectric sublayer SixNyZrz 127 with a physical thickness of 22.0 nm to 19.1 nm, deposited from a silicon-zirconium target containing 73 atomic% of silicon and 27 atomic% of zirconium in an atmosphere at 45% nitrogen on the total nitrogen and argon and under a pressure of 1, 5.10 3 mbar;
- a zinc-based oxide sublayer ZnO, 129 of variable physical thickness, from 1.0 nm to 6.0 nm, deposited from a ceramic target consisting of 49 atomic% of zinc and 49 atomic% oxygen and doped with 2% aluminum, in an argon atmosphere and under a pressure of 2.10 3 mbar; a functional metallic layer 140 based on silver, and even here precisely in silver, with a physical thickness of 12.0 nm, deposited from a metallic target in silver, in an argon atmosphere and under a pressure of 2.10 3 mbar; - an oxide overblocking layer based on titanium TiO x 150 which is located on the functional layer 140, with a physical thickness of 0.7 nm, deposited from a target in titanium dioxide in an atmosphere at 5% oxygen out of the total oxygen and argon and under a pressure of 2.10 3 mbar;
- a zinc-based oxide overcoat ZnO 161 with a physical thickness of 5 nm, deposited from a ceramic target consisting of 49 atomic% zinc and 49 atomic% oxygen and doped with aluminum at 2%, in an argon atmosphere and under a pressure of 2.10 3 mbar;
- the table in FIG. 5 summarizes the thicknesses of the layers 127, 129 and 165 of the five examples of this second series. All these examples were the subject of the same laser treatment as before, then were mounted in triple glazing in a structure of the type of that illustrated in FIG. 4. For these examples, this is a configuration: 4-16 (Ar 90%) - 4-16 (Ar 90%) - 4, that is to say it consists of three sheets of transparent glass of 4 mm, each making a substrate 10, 20, 30, separated two by two by an intermediate gas layer 15, 25 to 90% argon and 10% air, each 16 mm thick, the whole being held together by a frame structure 90.
- the two outer substrates 10, 30 of this triple glazing are each coated on its inner face 11, 29 facing the intermediate gas layer 15, 25, with an insulating coating 14, 26 consisting of the functional single-layer stack described. above: the functional monolayer stacks are thus on faces called "face 2 and" face 5).
- the central substrate 20 of this triple glazing the one whose two faces 19, 21 are in contact respectively with the intermediate gas sheets 15 and 25, is not coated with any coating on any of these faces.
- the last line of the table of figure 5, as well as figure 6 illustrate the evolution, on the y-axis in figure 6, of the solar factor, g, in percent, as a function of the thickness, ti29, in nanometers of the sub- oxide layer based on zinc ZnO 129 on the abscissa, this solar factor being measured immediately after the laser treatment of the two substrates 10, 30, then their integration to form the triple glazing.
- the solar factor is thus improved when the zinc oxide ZnO 129 sublayer is between 0.3 and 5.0 nm.
- the solar factor is particularly favorable for a thickness of this zinc oxide ZnO 129 sublayer between 1.0 and 3.0 nm, or even between 1.5 and 2.4 nm.
- the solar factor of triple glazing rose to 58.7%; or a gain of + 0.4 solar factor by reducing the thickness of the zinc-based oxide ZnO 129 sublayer from 5.0 nm to 1.0 nm.
- a zinc-based oxide sublayer ZnO 129 of variable physical thickness, from 1.0 nm to 6.0 nm, deposited from a ceramic target consisting of 49 atomic% zinc and 49 atomic% oxygen and doped with aluminum at 2%, in an argon atmosphere and under a pressure of 2.10 3 mbar;
- this is a configuration: 4-16 (Ar 90%) - 4, that is to say that it consists of two sheets of transparent glass of 4 mm, each forming a substrate 10, 30, separated by an intermediate gas layer 15 to 90% d argon and 10% air with a thickness of 16 mm, the whole being held together by a frame structure 90.
- the interior substrate 30 of this double glazing is coated on its interior face 29 facing the intermediate gas layer 15 with an insulating coating 14 consisting of the functional monolayer stack described above: the functional monolayer stack are thus opposite. say "face 3").
- the table in figure 7 summarizes the exact thickness of the layers 125, 127, 129 and 165, in nm, for the 6 examples of zinc-based oxide sublayer ZnO 129, with a physical thickness varying from 1 , 0 nm to 6.0 nm.
- the last line of the table in FIG. 7, as well as in FIG. 8 illustrate the change on the y-axis of the solar factor, g, in percent, as a function of the thickness, ti29, in nanometers of this sub-layer of oxide at zinc base ZnO 129 on the abscissa, this solar factor being measured immediately after the laser treatment of the two substrates 10, 30, then their integration to form the triple glazing.
- the solar factor drops from 58.1% for a glazing in which the stack comprises an underlayer of oxide based on zinc ZnO 129 of 6.0 nm to 58.9% for a glazing in which the stack comprises a sub-layer.
- the solar factor is thus improved when the zinc oxide ZnO 129 sublayer is between 0.3 and 5.0 nm.
- the solar factor is particularly favorable for a zinc-based oxide ZnO 129 underlayer thickness between 0.3 and 2.9 nm, or even between 0.5 and 2.4.
- a fourth series of examples was then produced on the basis of the second series of examples by modifying the deposition conditions of the zinc-based oxide sublayer ZnO 129: the deposition atmosphere of this layer has been tested with 0% oxygen (and 100% argon), 5% oxygen (and 95% argon) and 10% oxygen (and 90% argon).
- the resistance per square can be lower than expected when there is a lot of oxygen in the atmosphere for depositing the sublayer comprising zinc oxide ZnO 129; in particular when the content is much greater than 10%.
- the present invention is described in the foregoing by way of example. It is understood that a person skilled in the art is able to produce different variants of the invention without, however, departing from the scope of the patent as defined by the claims.
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Abstract
Description
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FR2006609A FR3111890B1 (fr) | 2020-06-24 | 2020-06-24 | Materiau comportant un empilement a sous-couche dielectrique fine d’oxide a base de zinc et procede de depot de ce materiau |
PCT/FR2021/051082 WO2021260296A1 (fr) | 2020-06-24 | 2021-06-16 | Materiau comportant un empilement a sous-couche dielectrique fine d'oxide a base de zinc et procede de depot de ce materiau |
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FR2728559B1 (fr) | 1994-12-23 | 1997-01-31 | Saint Gobain Vitrage | Substrats en verre revetus d'un empilement de couches minces a proprietes de reflexion dans l'infrarouge et/ou dans le domaine du rayonnement solaire |
FR2946639B1 (fr) | 2009-06-12 | 2011-07-15 | Saint Gobain | Procede de depot de couche mince et produit obtenu. |
FR3038597B1 (fr) * | 2015-07-08 | 2021-12-10 | Saint Gobain | Materiau muni d'un empilement a proprietes thermiques |
FR3054892A1 (fr) * | 2016-08-02 | 2018-02-09 | Saint Gobain | Substrat muni d'un empilement a proprietes thermiques comportant au moins une couche comprenant du nitrure de silicium-zirconium enrichi en zirconium, son utilisation et sa fabrication. |
US10287673B2 (en) * | 2017-03-07 | 2019-05-14 | Guardian Glass, LLC | Coated article having low-E coating with IR reflecting layer(S) and yttrium inclusive high index nitrided dielectric layer |
-
2020
- 2020-06-24 FR FR2006609A patent/FR3111890B1/fr active Active
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2021
- 2021-06-16 WO PCT/FR2021/051082 patent/WO2021260296A1/fr unknown
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