EP2534109A1 - Verfahren zur herstellung einer strukturierten tco-schutzschicht - Google Patents
Verfahren zur herstellung einer strukturierten tco-schutzschichtInfo
- Publication number
- EP2534109A1 EP2534109A1 EP11702457A EP11702457A EP2534109A1 EP 2534109 A1 EP2534109 A1 EP 2534109A1 EP 11702457 A EP11702457 A EP 11702457A EP 11702457 A EP11702457 A EP 11702457A EP 2534109 A1 EP2534109 A1 EP 2534109A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- tco
- glass substrate
- glass
- cover layer
- 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- Withdrawn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
- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 239000011253 protective coating Substances 0.000 title 1
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 239000011521 glass Substances 0.000 claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 238000005530 etching Methods 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 238000004544 sputter deposition Methods 0.000 claims description 9
- 239000010409 thin film Substances 0.000 claims description 9
- 238000005229 chemical vapour deposition Methods 0.000 claims description 6
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 6
- 238000005240 physical vapour deposition Methods 0.000 claims description 6
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 6
- 229910001887 tin oxide Inorganic materials 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 229910006404 SnO 2 Inorganic materials 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910003437 indium oxide Inorganic materials 0.000 claims description 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000005361 soda-lime glass Substances 0.000 claims description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000005388 borosilicate glass Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000005357 flat glass Substances 0.000 claims description 2
- 239000005329 float glass Substances 0.000 claims description 2
- 235000019253 formic acid Nutrition 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims 1
- 229910052787 antimony Inorganic materials 0.000 claims 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 8
- 229910052581 Si3N4 Inorganic materials 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 82
- 238000000151 deposition Methods 0.000 description 12
- 230000008021 deposition Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 8
- 239000010408 film Substances 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229910052711 selenium Inorganic materials 0.000 description 3
- 239000011669 selenium Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000005391 art glass Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- CJOBVZJTOIVNNF-UHFFFAOYSA-N cadmium sulfide Chemical compound [Cd]=S CJOBVZJTOIVNNF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- HVMJUDPAXRRVQO-UHFFFAOYSA-N copper indium Chemical compound [Cu].[In] HVMJUDPAXRRVQO-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3429—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating
- C03C17/3435—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials at least one of the coatings being a non-oxide coating comprising 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
-
- 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
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
- H10F71/138—Manufacture of transparent electrodes, e.g. transparent conductive oxides [TCO] or indium tin oxide [ITO] electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
- H10F77/169—Thin semiconductor films on metallic or insulating substrates
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
- H10F77/169—Thin semiconductor films on metallic or insulating substrates
- H10F77/1694—Thin semiconductor films on metallic or insulating substrates the films including Group I-III-VI materials, e.g. CIS or CIGS
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
- H10F77/169—Thin semiconductor films on metallic or insulating substrates
- H10F77/1696—Thin semiconductor films on metallic or insulating substrates the films including Group II-VI materials, e.g. CdTe or CdS
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/20—Electrodes
- H10F77/244—Electrodes made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/30—Coatings
- H10F77/306—Coatings for devices having potential barriers
- H10F77/311—Coatings for devices having potential barriers for photovoltaic cells
- H10F77/315—Coatings for devices having potential barriers for photovoltaic cells the coatings being antireflective or having enhancing optical properties
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/541—CuInSe2 material PV cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
Definitions
- the invention relates to a method for producing a structured TCO protective layer, to a substrate having a structured TCO protective layer and to its use in solar cells and / or displays.
- TCOs Transparent Conductive Oxides
- OLEDs organic light-emitting diodes
- Important key figures in the characterization of TCOs are the highest possible optical transparency and a high electrical conductivity. These properties make TCOs particularly interesting as transparent electrodes for solar modules and, together with the back electrode, buffer layers, antireflection layers and the actual photoactive semiconductors form the basic structure of the solar cell.
- Photovoltaic layer systems for the direct conversion of solar radiation into electrical energy are known.
- the materials and the arrangement of the layers are coordinated so that incident radiation from one or more semiconducting layers with the highest possible radiation yield is converted directly into electrical current.
- Photovoltaic and extensive coating systems are called solar cells.
- Solar cells contain semiconductor material in all cases. Solar cells that require carrier substrates to provide sufficient mechanical strength are referred to as thin film solar cells. Due to the physical properties and the technological handleability, thin film systems with amorphous, micromorphous or polycrystalline silicon, cadmium telluride (CdTe), gallium arsenide (GaAs) or copper indium (gallium) sulfur / selenium (CI (G) S) are particularly suitable for solar cells.
- Known carrier substrates for thin-film solar cells contain inorganic glass, polymers or metal alloys and can be designed as rigid plates or flexible films depending on layer thickness and material properties. Due to the widely available carrier substrates and a simple monolithic integration, large-area arrangements of thin-film solar cells can be produced inexpensively.
- CI (G) S thin-film solar cells require a buffer layer between the typically p-type CI (G) S absorber and the typical n-type front electrode, which typically comprises zinc oxide (ZnO).
- the buffer layer can cause an electronic adjustment between absorber material and front electrode.
- the buffer layer contains, for example, a cadmium-sulfur compound.
- a back electrode with, for example, molybdenum is deposited directly on carrier substrates.
- An electrical circuit of several solar cells is referred to as a photovoltaic or solar module.
- the circuit of solar cells is permanently protected from environmental influences in known weather-stable structures.
- low-iron soda-lime glasses and adhesion-promoting polymer films are connected to the solar cells to form a weather-resistant photovoltaic module.
- the photovoltaic modules can be connected via junction boxes in a circuit of several photovoltaic modules.
- the circuit of photovoltaic modules is connected via known power electronics with the public utility network or a self-sufficient electrical power supply.
- TCO transparent conductive oxides
- sputtering a deposition, such as sputtering, at high temperatures.
- the high temperatures cause costly heated sputtering equipment and expensive process control.
- One possible solution to this problem is deposition at room temperature followed by heating at higher temperatures.
- EP 1 056 136 B1 discloses a substrate for a solar cell comprising at least a glass plate, a first and second base coating film and a conductive film.
- the first base coat film contains at least one of tin oxide, titanium oxide, indium oxide or zinc oxide.
- US2008 / 0314442 Al discloses a transparent substrate with an optically transparent electrode consisting of at least two layers.
- the first transparent, electrically conductive layer contains a non-doped mineral oxide, such as tin oxide.
- the second transparent, electrically conductive layer in contrast, contains a doped mineral oxide.
- US 2009/0084439 A1 discloses a solar cell with TCO layers.
- the solar cell includes a structure of a substrate, buffer layer, a first TCO layer, a plurality of silicon layers, a second TCO layer and an anti-reflection layer.
- TCO layer is provided with a transparent and conductive protective layer, which allows higher process conditions.
- the Protective layer preferably contains amorphous and later in the process crystalline silicon.
- US 2007/0029186 Al discloses a method for producing a coated glass substrate.
- the method comprises depositing a TCO film at room temperature on a glass substrate and depositing a protective layer on the TCO film.
- the coated glass substrate is then heated.
- the object of the invention is to provide a method for the production of a TCO-coated substrate, which permits a defined TCO deposition (transparent conductive oxide) at low temperatures and subsequent TCO surface structuring without a significant decrease in the electrical conductivity.
- the object of the present invention is achieved according fiction, by a method for producing a coated and reflection-reduced substrate according to the independent claim 1. Preferred embodiments will become apparent from the dependent claims.
- the object of the invention is further achieved by a coated substrate and its use according to further independent claims.
- the inventive method for producing a coated substrate comprises in a first step, the deposition of a TCO layer in a layer thickness of 100 nm to 1000 nm on a glass substrate.
- the TCO layer is preferably applied to the glass substrate by CVD (chemical vapor deposition), CLD (chemical liquid deposition) and / or PVD (physical vapor deposition).
- the TCO layer is particularly preferably applied by sputtering and / or magnetron sputtering on the glass substrate.
- the application is preferably carried out at room temperature and the glass substrate is preferably not further heated except by the coating process.
- an inert cover layer containing at least one of the compounds A1 2 0 3 , Si0 2 , Si 3 N 4 and or mixtures thereof, with a Average layer thickness of 0.5 nm to 5 nm.
- the deposition is carried out as described above, preferably by sputtering, while the inert cover layer is formed starting from distributed over the surface crystallization centers. These crystallization centers are formed by local clusters (clusters) of the inert cover layer. From these local clusters, the inert topcoat grows on top of the TCO layer.
- the inert top layer is applied only to an average layer thickness of 0.5 nm to 5 nm, the inert top layer is not homogeneously distributed over the entire TCO layer, but forms areas with a layer thickness of 0.5 nm to 5 nm and Areas outside the clusters that have no or less than 0.5 nm inert cladding.
- the coated substrate is heated and / or tempered at 550 ° C to 800 ° C and then etched in an acid. The etching is carried out by spraying and / or immersion, the substrate is preferably completely immersed in the acid.
- the inert overcoat is not removed or removed prior to etching.
- the heating and / or tempering is preferably carried out for 30 seconds to 240 seconds.
- the term annealing describes in the context of the invention, a heating or holding at a constant temperature.
- the heating is preferably carried out in an oxygen-containing atmosphere having at least 10 vol.% O 2 , preferably at least 15 vol.% 0 2 .
- the deposition of the TCO layer and / or the inert outer layer preferably takes place by means of PVD (physical vapor deposition) or CVD (chemical vapor deposition), more preferably by sputtering and particularly preferably by sputtering and / or magnetron sputtering.
- the deposition is preferably carried out at room temperature.
- the inert outer layer is preferably deposited in a layer thickness of 1 nm to 4 nm.
- the etching is preferably carried out with an inorganic and / or organic acid, more preferably HF, H 2 SiF 6 , (Si0 2 ) m * nH 2 0, HCl, H 2 S0 4 , H 3 P0 4 , HN0 3 , CF 3 COOH , CCl 3 COOH, HCOOH, CH 3 COOH and / or mixtures thereof.
- the invention further includes a coated substrate.
- the coated substrate preferably contains glass or polymer.
- a TCO layer is applied with a layer thickness of 100 nm to 1000 nm.
- a diffusion barrier layer of Si 3 N 4 , Si0 2 and / or A1 2 0 3 with a thickness of 30 nm to 100 nm is preferably applied.
- the TCO layer is provided on the side facing away from the substrate with an inert cover layer containing A1 2 0 3 , Si0 2 , Si 3 N 4 and / or mixtures thereof, with an average layer thickness of 0.5 nm to 5 nm.
- the inert overcoat preferably covers 20% to 80% of the surface of the TCO layer.
- the term "covered” refers to areas of the inert cover layer with layer thicknesses of> 0.5 nm.
- the inert cover layer protects both the TCO layer from oxidation during manufacture and acts through the sequence of areas with inert cover layer and areas without an inert cover layer on the surface of the TCO layer, simultaneously as an antireflection layer.
- the TCO layer preferably contains tin-doped indium oxide ( ⁇ ), aluminum-doped zinc oxide (AZO), fluorine-doped tin oxide (FTO, SnO 2 : F), antimony-doped tin oxide (ATO, SnO 2 : Sb), aluminum, zinc, Indium, gallium, silver, gold, tin, tungsten, copper, cadmium, niobium, strontium, silicon, zinc, selenium and / or mixtures or alloys thereof.
- ⁇ tin-doped indium oxide
- AZO aluminum-doped zinc oxide
- FTO, SnO 2 : F fluorine-doped tin oxide
- ATO, SnO 2 : Sb antimony-doped tin oxide
- the inert outer layer preferably has an average layer thickness of 2 nm to 4 nm.
- the inert outer layer preferably contains silicon, carbon, germanium, Si 3 N 4 and / or mixtures thereof.
- the substrate preferably contains flat glass (float glass), quartz glass, borosilicate glass, soda-lime glass and / or composites thereof.
- the TCO layer preferably has a sheet resistance of ⁇ 20 ⁇ / square, preferably ⁇ 15 ⁇ / square, more preferably ⁇ 10 ⁇ / square.
- the invention further includes the use of the coated substrate in solar cells and / or displays, preferably thin-film solar cells as contact electrodes with high optical transparency and electrical conductivity.
- FIG. 2 shows a cross section of a substrate according to the invention.
- FIG. 1 shows a cross section of the coated substrate according to the prior art.
- a substrate (1) of glass or polymer is a TCO layer (2).
- the TCO layer (2) is covered by a closed inert cover layer (3).
- FIG. 2 shows a cross section of the inventive substrate.
- a substrate (1) of glass or polymer is a TCO layer (2).
- the TCO layer (2) is covered by an unclosed inert cover layer (3).
- the areas without or only with a small layer thickness of the inert cover layer (4) are accessible for etching processes with acid or base and act together with the inert cover layer (3) as an antireflection layer.
- the invention will be explained in more detail below with reference to an example and a comparative example.
- a coated glass substrate (A) according to the invention and a glass substrate (B) according to the prior art were produced.
- the deposition was carried out by sputtering as described for example in US2007 / 0029186 AI.
- the coated glass substrate (A) according to the invention had the following layer structure: glass (3 mm / (l) / Si 3 N 4 (50 nm / diffusion barrier layer) / aluminum-doped zinc oxide (1000 nm) (2) / Si 3 N 4 (2 nm) (3)
- the prior art glass substrate (B) had the following layer structure: glass (3 mm) (1) / Si 3 N 4 (50 nm) / aluminum-doped zinc oxide (1000 nm).
- Both glass substrates (A) and (B) were heated in air for 75 s at 650 ° C.
- the cooled glass substrates (A) and (B) were then immersed in 0.5% by weight of HCl for 75 s and
- the sheet resistance R v before and R N after heating and acid treatment were measured, and the absorbance and haze after acid treatment were determined Table 1 shown.
- Table 1 sheet resistance R v before and R N after heating, absorption and haze of the inventive glass substrate (A) and the glass substrate (B) according to the prior art.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Physical Vapour Deposition (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP11702457A EP2534109A1 (de) | 2010-02-10 | 2011-02-08 | Verfahren zur herstellung einer strukturierten tco-schutzschicht |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10153198A EP2354107A1 (de) | 2010-02-10 | 2010-02-10 | Verfahren zur Herstellung einer strukturierten TCO-Schutzschicht |
| PCT/EP2011/051772 WO2011098434A1 (de) | 2010-02-10 | 2011-02-08 | Verfahren zur herstellung einer strukturierten tco-schutzschicht |
| EP11702457A EP2534109A1 (de) | 2010-02-10 | 2011-02-08 | Verfahren zur herstellung einer strukturierten tco-schutzschicht |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2534109A1 true EP2534109A1 (de) | 2012-12-19 |
Family
ID=42270250
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10153198A Withdrawn EP2354107A1 (de) | 2010-02-10 | 2010-02-10 | Verfahren zur Herstellung einer strukturierten TCO-Schutzschicht |
| EP11702457A Withdrawn EP2534109A1 (de) | 2010-02-10 | 2011-02-08 | Verfahren zur herstellung einer strukturierten tco-schutzschicht |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10153198A Withdrawn EP2354107A1 (de) | 2010-02-10 | 2010-02-10 | Verfahren zur Herstellung einer strukturierten TCO-Schutzschicht |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120295087A1 (de) |
| EP (2) | EP2354107A1 (de) |
| JP (1) | JP2013522147A (de) |
| KR (1) | KR20120125269A (de) |
| CN (1) | CN102741189A (de) |
| WO (1) | WO2011098434A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8916805B2 (en) * | 2010-01-12 | 2014-12-23 | Lg Chem, Ltd. | Heating glass and manufacturing method thereof |
| CN103183480A (zh) * | 2011-12-28 | 2013-07-03 | 上海北玻玻璃技术工业有限公司 | Azo镀膜玻璃的制备方法 |
| FR3018801A1 (fr) * | 2014-03-19 | 2015-09-25 | Saint Gobain | Substrat verrier a couche electroconductrice et rugosite diminuee |
| FR3018802A1 (fr) * | 2014-03-19 | 2015-09-25 | Saint Gobain | Substrat verrier a couche electroconductrice et tendance diminuee a la delamination |
| KR101539907B1 (ko) * | 2015-01-22 | 2015-08-06 | 성균관대학교산학협력단 | 패턴화된 태양전지용 유리기판 제조방법 및 이를 이용한 박막태양전지 |
| EP3133649A1 (de) * | 2015-08-18 | 2017-02-22 | Saint-Gobain Performance Plastics Corporation | Flexibler funktionalisierter film |
| US20190040523A1 (en) * | 2017-08-04 | 2019-02-07 | Vitro Flat Glass, LLC | Method of Decreasing Sheet Resistance in an Article Coated with a Transparent Conductive Oxide |
| DE102019203696B4 (de) * | 2019-03-19 | 2022-02-24 | Albert-Ludwigs-Universität Freiburg | Transparente Mehrschichtanordnung und Herstellungsverfahren |
| EP4474362A4 (de) | 2022-09-05 | 2025-06-25 | Samsung Electronics Co., Ltd. | Oberflächenbehandlungszusammensetzung und oberflächenbehandlungsverfahren damit |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63195149A (ja) * | 1987-02-10 | 1988-08-12 | Asahi Glass Co Ltd | 透明電導膜 |
| US6436541B1 (en) * | 1998-04-07 | 2002-08-20 | Ppg Industries Ohio, Inc. | Conductive antireflective coatings and methods of producing same |
| JP3227449B2 (ja) | 1999-05-28 | 2001-11-12 | 日本板硝子株式会社 | 光電変換装置用基板とその製造方法、およびこれを用いた光電変換装置 |
| FR2811316B1 (fr) * | 2000-07-06 | 2003-01-10 | Saint Gobain | Substrat texture transparent et procedes pour l'obtenir |
| JP3229610B2 (ja) * | 2000-08-07 | 2001-11-19 | 株式会社半導体エネルギー研究所 | Ito電極の作製方法 |
| US20070029186A1 (en) | 2005-08-02 | 2007-02-08 | Alexey Krasnov | Method of thermally tempering coated article with transparent conductive oxide (TCO) coating using inorganic protective layer during tempering and product made using same |
| FR2891269B1 (fr) | 2005-09-23 | 2007-11-09 | Saint Gobain | Substrat transparent muni d'une electrode |
| EP2114839A2 (de) * | 2007-01-15 | 2009-11-11 | Saint-Gobain Glass France | Glassubstrat, das mit schichten beschichtet ist, die eine verbesserte mechanische stärke aufweisen |
| DE102007024986A1 (de) | 2007-05-28 | 2008-12-04 | Forschungszentrum Jülich GmbH | Temperaturstabile TCO-Schicht, Verfahren zur Herstellung und Anwendung |
| TWI371112B (en) | 2007-10-02 | 2012-08-21 | Univ Chang Gung | Solar energy photoelectric conversion apparatus |
| JP2009242128A (ja) * | 2008-03-28 | 2009-10-22 | Asahi Glass Co Ltd | 透明導電ガラス基板およびその製造方法 |
| DE102008028141A1 (de) * | 2008-06-13 | 2009-12-17 | Audi Ag | Glasprodukt |
| US20110011828A1 (en) * | 2009-07-20 | 2011-01-20 | Applied Materials, Inc. | Organically modified etch chemistry for zno tco texturing |
-
2010
- 2010-02-10 EP EP10153198A patent/EP2354107A1/de not_active Withdrawn
-
2011
- 2011-02-08 US US13/513,184 patent/US20120295087A1/en not_active Abandoned
- 2011-02-08 CN CN2011800088464A patent/CN102741189A/zh active Pending
- 2011-02-08 WO PCT/EP2011/051772 patent/WO2011098434A1/de not_active Ceased
- 2011-02-08 JP JP2012552360A patent/JP2013522147A/ja active Pending
- 2011-02-08 EP EP11702457A patent/EP2534109A1/de not_active Withdrawn
- 2011-02-08 KR KR1020127020161A patent/KR20120125269A/ko not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011098434A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120125269A (ko) | 2012-11-14 |
| EP2354107A1 (de) | 2011-08-10 |
| WO2011098434A1 (de) | 2011-08-18 |
| JP2013522147A (ja) | 2013-06-13 |
| US20120295087A1 (en) | 2012-11-22 |
| CN102741189A (zh) | 2012-10-17 |
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