CN103771725A - Novel multifunctional energy-saving glass film-coating structure and preparation method thereof - Google Patents
Novel multifunctional energy-saving glass film-coating structure and preparation method thereof Download PDFInfo
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- CN103771725A CN103771725A CN201210405334.8A CN201210405334A CN103771725A CN 103771725 A CN103771725 A CN 103771725A CN 201210405334 A CN201210405334 A CN 201210405334A CN 103771725 A CN103771725 A CN 103771725A
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Abstract
The invention provides a novel multifunctional energy-saving glass film-coating structure. The novel multifunctional energy-saving glass film-coating structure comprises an energy-saving light-adjustment layer arranged at a side of glass facing toward the outdoor space and a low-radiation layer (Low-E layer) arranged at a side of the glass facing toward the indoor space; and the low-radiation layer is provided with an anti-reflection layer. The invention provides the novel multifunctional energy-saving glass film-coating structure realizing energy saving at a high/low temperature in the outdoor space, and its preparation method and use.
Description
Technical field
The present invention relates to a kind of Multifunction energy-saving glass coating structure and preparation method, specifically refer to and have high temperature light modulation, the multiple glazing coating structure of low temperature heat insulation function, belongs to novel inorganic energy-saving material field.
Background technology
China's construction unit area energy consumption is 3 to 4 times of developed country.Building energy consumption accounts for the nearly 1/3 of energy overall consumption, not only causes the huge waste of the energy, is also the emphasis rich and influential family of greenhouse gas emission.Thermosteresis major part for building and heating refrigeration air-conditioner concentrates on the opening parts such as window and body of wall, the buildings outer walls such as roof.To the outer wall of buildings particularly window part carry out the intelligent photo-thermal comprehensive regulation of low-carbon (LC), develop energy-efficient comfortable New Generation of Intelligent Energy Saving Windows, meet national strategy demand, there is important scientific value and application prospect, will make huge contribution to China's energy-saving and emission-reduction.The Energy Saving Windows of domestic and international market is mainly Low-E glass at present, and feature is to utilize coating structure control to realize static photo-thermal to regulate.But this adjusting is not with seasonal variation or artificially need and change, cannot meet the demand of China's regional two-ways regulation cold in winter and hot in summer.Intelligent type energy saving glass can according to season environment or occupant need to carry out at any time photo-thermal regulation and control, reach energy-conservation comfortable object cool in summer and warm in winter.In various types of intelligent type energy saving glass, utilize the thermochromism energy-saving glass of material phase transformation characteristic research and development, simple in structure have outstanding advantages such as automatic photo-thermal two-ways regulation, is described as energy-conservation comfortable " window of dream " of future generation.
This thermochromic material, take vanadium dioxide material as representative, mainly utilizes its reversible transformation characteristic: be elevated to after transformation temperature in temperature, vanadium dioxide changes Tetragonal into by monoclinic phase within the utmost point short period of time.Follow phase transformation, vanadium dioxide infrared transmission is changed to low transmission by high transmission, but visible light permeability keeps substantially constant simultaneously, thereby can not cause obvious visually-clear to change.Meanwhile, hypovanadic oxide-based thermochromism glass is also that current structure is the simplest, the cheapest intelligent power saving glass of cost form, and transformation temperature can regulate by suitable technique and Composition Control, and application prospect is rather wide.
In the time of high temperature, vanadium dioxide is metallic state, the high reflection of region of ultra-red, not only can shield infrared solar radiation (effect wave band: 1 μ m < λ < 2.5 μ m), can effectively block (the effect wave band: 2 μ m < λ < 50 μ m), play adiabatic effect of the radiative transfer by window between indoor and outdoor simultaneously.But (as winter) at low temperatures, vanadium dioxide is semi-conductor state, region of ultra-red is transparent, the solar radiation of full spectrum all can enter indoor, contribute to the lifting of room temp, but meanwhile, the thermal radiation exchange between indoor and outdoor also can be undertaken by window, this can cause scattering and disappearing of indoor heat, is unfavorable for indoor heat insulating.
In sum, this area lacks a kind of multifunction energy-saving glass coating structure that can reach energy-saving effect under outdoor high and low temperature state.Therefore, this area is in the urgent need to developing a kind of multifunction energy-saving glass coating structure that can reach energy-saving effect under outdoor high and low temperature state.
Summary of the invention
The first object of the present invention is to obtain a kind of multifunction energy-saving glass coating structure that can reach energy-saving effect under outdoor high and low temperature state.
The second object of the present invention is to obtain a kind of preparation method of the multifunction energy-saving glass coating structure that can reach energy-saving effect under outdoor high and low temperature state.
The 3rd object of the present invention is to obtain a kind of multifunction energy-saving glass that can reach energy-saving effect under outdoor high and low temperature state.
The 4th object of the present invention is to obtain a kind of multifunction energy-saving glasswork that can reach energy-saving effect under outdoor high and low temperature state.
The 5th object of the present invention is to obtain a kind of purposes of the multifunction energy-saving glass coating structure that can reach energy-saving effect under outdoor high and low temperature state.
In a first aspect of the present invention, a kind of Multifunction energy-saving glass coating structure is provided, wherein, described glass coating structure comprises:
Be located at the energy-saving dimming layer of glass towards an outdoor side;
Be located at the low radiating layer (Low-E layer) of glass towards an indoor side,
On wherein said low radiating layer, be also provided with anti-reflection layer.
In a specific embodiment of the present invention, described low radiating layer is preferably AZO, GZO; Described anti-reflection layer is preferably SiO
2, TiO
2layer or its combination.
The thickness of described anti-reflection layer can be between 20-200nm, preferably between 50-150nm.
In a specific embodiment of the present invention, described low radiating layer is selected from Al doping ZnO (AZO), Ga doping ZnO (GZO), Ag doping ZnO, the multilayered structure that FTO, ITO, ATO or Ag and transparent oxide form.
In a specific embodiment of the present invention, described energy-saving dimming layer is vanadium oxide thermocolour film or vanadium oxide Quito layer thermocolour membrane structure.
In an embodiment, the vanadium dioxide thermo film of employing or hypovanadic oxide-based multilayer thermocolour film (for example TiO
2/ VO
2/ TiO
2, ZnO/VO
2/ TiO
2, TiO
2/ VO
2, VO
2/ TiO
2deng) be single-phase polycrystalline film, thus good photo-thermal regulating power there is.
In an embodiment, in described vanadium oxide thermocolour film or vanadium oxide Quito layer thermocolour membrane structure doped with one or more elements; Described doped element is selected from one or more in tungsten, molybdenum, niobium, chromium, titanium, aluminium, tantalum, manganese, fluorine, nitrogen and hydrogen.
In a specific embodiment of the present invention, described energy-saving dimming layer thickness be 50-400 nanometer,
Described low radiating layer film thickness be 50-450 nanometer,
The thickness range of anti-reflection layer is 10-200 nanometer.
Preferably, the Thickness Design of described energy-saving dimming layer, low radiating layer film, anti-reflection layer is respectively (75～350nm), 300～450nm, 50～150nm with respect to glass, thereby reaches the effect of the radiant ratio that reduces its low-temperature phase.
In a specific embodiment of the present invention, the visible light transmissivity of described glass coating structure is 75%-80%, and far infrared reflectivity is not less than 80% under wavelength 2.5um.
In the present invention, if without illustrating, the bioassay standard of described " visible light transmissivity " and " far infrared reflectivity " is according to GB standard.
The second object of the present invention is to provide a kind of preparation method of glass coating structure of the present invention, it is characterized in that, comprises the steps:
Employing magnetron sputtering method deposits low radiating layer (Low-E layer) glass towards an indoor side, at the energy-saving dimming layer towards an outdoor side;
At the upper magnetron sputtering method deposition anti-reflection layer that adopts of described low radiating layer (Low-E layer).
In an embodiment, comprise the steps:
1), for example, under optimal temperature condition (200～300 ℃), adopt magnetron sputtering method in transparent substrate, to deposit Low-E film, hypovanadic oxide-based multilayer film;
2) under room temperature condition, adopt magnetron sputtering method deposition SiO
2, TiO
2on anti-reflection layer, the described accurate optical computing of each layer of process, thickness is controlled.
In an embodiment, a kind of Multifunction energy-saving glass coating structure of the present invention is made up of a, b two portions glass coating structure, wherein a comprises glass substrate (1), it is characterized in that: on substrate (1), deposit successively Low-E layer Al doping ZnO (AZO), Ga doping ZnO (GZO), Ag doping ZnO, FTO, ITO, ATO etc.) and be positioned at anti-reflection layer (for example SiO on Low-E film
2, TiO
2deng); B comprises glass substrate (2), it is characterized in that: for example, at substrate (2) upper deposition vanadium dioxide thermo film or hypovanadic oxide-based multilayer thermocolour membrane structure (TiO
2/ VO
2/ TiO
2, ZnO/VO
2/ TiO
2, TiO
2/ VO
2, VO
2/ TiO
2deng).
A third aspect of the present invention provides a kind of energy-conservation coated glass of multifunction energy-saving glass coating structure of the present invention, it is characterized in that,
Described glass is layer glass or multiple glazing;
And described low radiating layer A is positioned near indoor one side, or between layer glass;
Described light modulation layer B is positioned near outdoor one side, or between layer glass.
In an embodiment, described low radiating layer A is positioned near indoor one side, or between layer glass, is mainly used to ir radiation in reflection room, keeps room temp; Described light modulation layer B is positioned near outdoor one side, or between layer glass, is mainly used in the outer sunlight heat of surge chamber and how much indoorly enters, and reaches energy-conservation object.
A fourth aspect of the present invention provides a kind of goods containing glass coating structure of the present invention.
A fifth aspect of the present invention provides the application of a kind of anti-reflection layer in glass coating structure of the present invention, for improving its visible light transmissivity.
Accompanying drawing explanation
Fig. 1 is thin film layer Multifunction energy-saving coated glass structural representation outside;
Fig. 2 is Multifunction energy-saving coated glass structure pictorial diagram;
Fig. 3 is that in glass substrate, Low-E layer (AZO) sees through reflection spectrum at mid and far infrared;
Fig. 4 is Low-E layer (AZO) and compound anti-reflection layer (SiO in glass substrate
2) after ultraviolet-visible-near-infrared transmission and reflected light spectrogram;
Fig. 5 is the ultraviolet-visible-near-infrared transmission spectrogram under corresponding thin film layer Multifunction energy-saving coated glass structure high/low temperature condition outside.
Fig. 6 is that thin film layer is at interior Multifunction energy-saving coated glass structural representation;
Fig. 7 is the ultraviolet-visible-near-infrared transmission spectrogram of corresponding thin film layer under interior Multifunction energy-saving coated glass structure high/low temperature condition.
Embodiment
The inventor, through extensive and deep research, by improving preparation technology, has obtained a kind of multifunction energy-saving glass coating structure that can reach energy-saving effect under outdoor high and low temperature state.Complete on this basis the present invention.
Technical conceive of the present invention is as follows:
Contriver thinks that, under the prerequisite of guarantee vanadium dioxide film thermochromic properties, the radiant ratio that reduces its low-temperature phase is to improve the key of hypovanadic oxide-based intelligent power saving glass properties.Study and show by experiment according to above-mentioned direction contriver, common transparent conductive film (TCO) is according to the thickness of deposition, can show different high reflectances in far infrared region, if designing suitable thickness makes it to act on window glass with vanadium dioxide film simultaneously, can reduce vanadium dioxide film low-temp radiating rate, thereby be expected to solve the problem of intelligent power saving glass heat-insulating.
Technique means of the present invention comprises:
The present invention intends adopting in glass substrate and prepares respectively TCO film as height reflection Low-E layer, and hypovanadic oxide-based multilayer film are as light modulation layer, finally synthesize multifunctional intellectual energy-saving glass structure.Wherein, the anti-layer of described height comprises Low-E film (the Al doping ZnO (AZO) that is positioned at transparent substrate one side, Ga doping ZnO (GZO), Ag doping ZnO, FTO, ITO, ATO etc.) and be positioned at anti-reflection film (for example SiO on Low-E film
2, TiO
2deng); Described light modulation layer comprises the vanadium dioxide thermo film or hypovanadic oxide-based multilayer thermocolour membrane structure (for example TiO that are positioned at transparent substrate one side
2/ VO
2/ TiO
2, ZnO/VO
2/ TiO
2, TiO
2/ VO
2, VO
2/ TiO
2deng).Total can realize and regulate the sun to obtain hot merit energy in summer, has heat insulation function, and can keep higher transmitance in visible region in winter.At present, similar structures there is not yet report in all kinds of documents at home and abroad.
More specifically, adopt multifunction double-layer intelligent power saving glass structure.This energy-saving glass coating structure adds gas cloud by layer glass and combines.Every layer of one side of described double glazing is coated with respectively multilayer function film A and B, and A is low radiation (Low-E) layer, and B is light modulation layer.Design the energy-saving glass of different structure according to the position of A, the two-layer relative glass of B.Described A layer comprises Low-E film (the Al doping ZnO (AZO) that is positioned at transparent substrate one side, Ga doping ZnO (GZO), Ag doping ZnO, FTO, ITO, ATO etc.) and be positioned at anti-reflection film (for example SiO on Low-E film
2, TiO
2deng); Described B layer comprises the vanadium dioxide thermo film or hypovanadic oxide-based multilayer thermocolour membrane structure (for example TiO that are positioned at transparent substrate one side
2/ VO
2/ TiO
2, ZnO/VO
2/ TiO
2, TiO
2/ VO
2, VO
2/ TiO
2deng).Described Low-E layer film thickness is 100-300 nanometer, determines the film thickness of anti-reflection layer and Low-E layer according to related optical constant calculations.Preparation method's technique disclosed by the invention is simple, the hypovanadic oxide-based energy-saving glass coating structure of gained is in having and automatically regulating summer sunlight to obtain thermal property, improve indoor heat preservation property in winter, be conducive to Energy Saving Windows to multi-functional, high-intelligentization future development.
Below describe in detail to various aspects of the present invention:
Multifunction energy-saving glass coating structure
In a first aspect of the present invention, a kind of Multifunction energy-saving glass coating structure is provided, wherein, described glass coating structure comprises:
Be located at the energy-saving dimming layer of glass towards an outdoor side;
Be located at the low radiating layer (Low-E layer) of glass towards an indoor side,
On wherein said low radiating layer, be also provided with anti-reflection layer.
The present invention utilizes transparent conductive oxide (TCO) thin-film material, regulates and controls by the growth structure to TCO film and thickness, obtains visible light transmissivity high, and at the low Low-E thin film layer of far infrared region range of radiation rate.
The present invention is directed to the problem that how to improve device visible light transmissivity, adopt anti-reflection layer (for example SiO
2, TiO
2deng) in not changing the low radiation characteristic of Low-E layer, can make visible light transmissivity improve nearly 10%, there is the effect that protection Low-E layer is not affected by the external environment simultaneously, extend its work-ing life.
In a specific embodiment of the present invention, the visible light transmissivity of described glass coating structure is 75%-80%, and far infrared reflectivity is not less than 80% under wavelength 2.5um.
In the present invention, if without illustrating, the bioassay standard of described " visible light transmissivity " and " far infrared reflectivity " is according to GB standard.
More specifically, the present invention is directed to the shortcomings that vanadium dioxide single thin film exists, as low in visible light transmissivity, dimming behavior is weak etc., adopts the mode of multi-layer compound film, optimizes the dimming behavior of vanadium dioxide film.
In a specific embodiment of the present invention, described energy-saving dimming layer thickness be 50-400 nanometer,
Described low radiating layer film thickness be 50-450 nanometer,
The thickness range of anti-reflection layer is 10-200 nanometer.
Preferably, the Thickness Design of described energy-saving dimming layer, low radiating layer film, anti-reflection layer is respectively (75～350nm), 300～450nm, 50～150nm with respect to glass, thereby reaches the effect of the radiant ratio that reduces its low-temperature phase.
A kind of Multifunction energy-saving glass coating structure of the present invention and preparation method, its maximum advantage is based on inorganic oxide based film material cheaply, sull by different optical performance is compound, realize the multifunction of energy-saving glass, intelligentized feature, is conducive to the future development of Energy Saving Windows glass to low cost, high-performance, high intelligence.
glass
Herein, described " glass " comprises unorganic glass and is similar to the tabular transparent configuration of glass.
energy-saving dimming layer
Herein, described " energy-saving dimming layer " comprises vanadium oxide thermocolour film or vanadium oxide Quito layer thermocolour membrane structure.
In an embodiment, in described vanadium oxide thermocolour film or vanadium oxide Quito layer thermocolour membrane structure doped with one or more elements; Described doped element is selected from one or more in tungsten, molybdenum, niobium, chromium, titanium, aluminium, tantalum, manganese, fluorine, nitrogen and hydrogen.
In an embodiment, the vanadium dioxide thermo film of employing or hypovanadic oxide-based multilayer thermocolour film (for example TiO
2/ VO
2/ TiO
2, ZnO/VO
2/ TiO
2, TiO
2/ VO
2, VO
2/ TiO
2deng) be single-phase polycrystalline film, thus good photo-thermal regulating power there is.
Adopt TiO in preferred the present invention of the present invention
2with VO
2film carries out MULTILAYER COMPOSITE, is optimizing VO
2when dimming behavior, can also make full use of TiO
2photocatalysis performance, make glass outer surface there is self-cleaning function.For example, adopt TiO
2/ VO
2/ TiO
2, thickness is respectively 10 ± 2nm/70 ± 5nm/240 ± 20nm.
low radiating layer (Low-E layer)
Herein, described " low radiating layer (Low-E layer) " comprises transparent conductive oxide (Al doping ZnO (AZO), Ga doping ZnO (GZO), Ag doping ZnO, FTO, ITO, ATO, or the multilayered structure that forms of Ag and transparent oxide etc.
In a specific embodiment of the present invention, described low radiating layer is preferably AZO, GZO.
The thickness of described anti-reflection layer can be between 20-200nm, preferably between 50-150nm.
anti-reflection layer
Herein, described " anti-reflection layer " comprises SiO
2, TiO
2, Nb
2o
5, ZrO
2, Al
2o
3, SiN
x, AlN, etc., the transparent oxide material of refractive index n value between 1.5-2.5.
Described anti-reflection layer is preferably SiO
2, TiO
2layer or its combination.
The inventor finds, described anti-reflection layer (for example SiO
2, TiO
2deng) in not changing the low radiation characteristic of Low-E layer, can make visible light transmissivity improve nearly 10%, there is the effect that protection Low-E layer is not affected by the external environment simultaneously, extend its work-ing life.
preferred implementation
The object of this invention is to provide a kind of novel building multifunction energy-saving glass coating basic structure and preparation method.Formed by a, b two portions glass coating structure, wherein a comprises glass substrate (1), on substrate (1), deposit successively Low-E layer Al doping ZnO (AZO), Ga doping ZnO (GZO), Ag doping ZnO, FTO, ITO, ATO etc.) and be positioned at anti-reflection layer (for example SiO on Low-E film
2, TiO
2deng); B comprises glass substrate (2), it is characterized in that: for example, at substrate (2) upper deposition vanadium dioxide thermo film or hypovanadic oxide-based multilayer thermocolour membrane structure (TiO
2/ VO
2/ TiO
2, ZnO/VO
2/ TiO
2, TiO
2/ VO
2, VO
2/ TiO
2deng).
A structure of the present invention is as double glazing near indoor section, and Main Function, for reducing radiant ratio, plays the effect of low temperature insulation; B structure is as double glazing near outdoor section, and Main Function is warm for regulating the sun to obtain, and enters indoor solar radiation outside watch-keeping cubicle, and heat insulation effect reaches a high temperature.
The preparation method of glass coating structure
The second object of the present invention is to provide a kind of preparation method of glass coating structure of the present invention, and it comprises the steps:
Employing magnetron sputtering method deposits low radiating layer (Low-E layer) glass towards an indoor side, at the energy-saving dimming layer towards an outdoor side;
At the upper magnetron sputtering method deposition anti-reflection layer that adopts of described low radiating layer (Low-E layer).
In an embodiment, comprise the steps:
1), for example, under optimal temperature condition (200～300 ℃), adopt magnetron sputtering method in transparent substrate, to deposit Low-E film, hypovanadic oxide-based multilayer film;
2) under room temperature condition, adopt magnetron sputtering method deposition SiO
2, TiO
2on anti-reflection layer, the described accurate optical computing of each layer of process, thickness is controlled.
The energy-conservation coated glass of multifunction energy-saving glass coating structure
A third aspect of the present invention provides a kind of energy-conservation coated glass of multifunction energy-saving glass coating structure of the present invention, wherein,
Described glass is layer glass or multiple glazing;
And described low radiating layer A is positioned near indoor one side, or between layer glass;
Described light modulation layer B is positioned near outdoor one side, or between layer glass.
In an embodiment, described low radiating layer A is positioned near indoor one side, or between layer glass, is mainly used to ir radiation in reflection room, keeps room temp; Described light modulation layer B is positioned near outdoor one side, or between layer glass, is mainly used in the outer sunlight heat of surge chamber and how much indoorly enters, and reaches energy-conservation object.
As no specific instructions, various raw material of the present invention all can obtain by commercially available; Or prepare according to the ordinary method of this area.Unless otherwise defined or described herein, the familiar same meaning of all specialties used herein and scientific words and those skilled in the art.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Other aspects of the present invention, due to disclosure herein, are apparent to those skilled in the art.
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.The experimental technique of unreceipted actual conditions in the following example, measures according to national standard conventionally.If there is no corresponding national standard, carry out according to general international standard, normal condition or the condition of advising according to manufacturer.Unless otherwise indicated, otherwise all umbers are weight part, and all per-cents are weight percentage, and described polymericular weight is number-average molecular weight.
Unless otherwise defined or described herein, the familiar same meaning of all specialties used herein and scientific words and those skilled in the art.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.
Selecting the ZnO film (AZO) of Al doping is low radiating layer, and general molecular formula is Al
xzn
1-xo, (0.01<x<0.04), thickness 300～450nm; Select SiO
2film is anti-reflection layer, thickness 50～150nm; Selecting hypovanadic oxide-based multilayer thermocolour film is energy-saving dimming layer, and multi-layer film structure is TiO
2/ VO
2/ TiO
2, thickness is respectively 10nm/70nm/240nm.
Described multifunction energy-saving glass coating structure is made up of a, b two portions glass coating structure, wherein a comprises glass substrate (1), deposits successively Low-E layer Al doping ZnO (AZO) and be positioned at the anti-reflection layer SiO on Low-E film on substrate (1)
2; B comprises glass substrate (2), at the hypovanadic oxide-based multilayer thermocolour membrane structure TiO of the upper deposition of substrate (2)
2/ VO
2/ TiO
2.
Concrete technology step is as follows:
1) preparation of low radiating layer: substrate is selected silica glass (1), cleans through acetone, ethanol and deionized water standard ultrasound.Adopt multifunctional magnetic control sputtering system, take the ZnO of doped with Al (2%) as target, back end vacuum is 3 × 10
-5pa, depositing temperature is 250 ° of C, Ar airshed 40 is marked condition milliliter per minute (sccm), deposit thickness～375nm;
2), on AZO film, adopt SiO
2(purity 99.99%) pottery is target, the SiO that under room temperature condition, deposit thickness is 90nm
2anti-reflection layer;
3) preparation of energy-saving dimming layer: substrate is selected silica glass (2), cleans through acetone, ethanol and deionized water standard ultrasound.Adopt multifunctional magnetic control sputtering system, with TiO
2(purity 99.99%) is target, and back end vacuum is 3 × 10
-5pa, depositing temperature is 400 ° of C, Ar airshed 40sccm, successively depositing Ti O
2film and VO
2film, be respectively～10nm of deposit thickness and～70nm; At VO
2on film, with TiO
2(purity 99.99%) is target, Ar airshed 40sccm, the TiO of the about 240nm of deposit thickness under room temperature condition
2film;
4) by two silica glass substrate combination encapsulation after difference deposit film, thin film layer outside, forms a kind of Multifunction energy-saving glass coating structure.Wherein, in low radiating layer faced chamber, energy-saving dimming aspect is to outdoor.
The multifunction energy-saving glass coating structure preparing, its structure for by indoor to outdoor be respectively SiO
2/ AZO/ silica glass/air/silica glass/TiO
2/ VO
2/ TiO
2, schematic diagram is referring to accompanying drawing 1.
This energy-saving glass coating structure of visual inspection has the good transparency, referring to accompanying drawing 2.
Low-E layer AZO film has good visible light transmissivity (75%-80%) and far infrared reflectivity (wavelength 2.5um, reflectivity can reach more than 80%), as shown in Figure 3.
SiO
2antireflection layer is crossed and is composed and reflect as shown in spectrogram anti-reflection layer SiO as accompanying drawing 4 optical lens the visible ray antireflective effect of this structure
2in not changing the low radiation characteristic of Low-E layer, can make visible ray (corresponding wavelength 380～780nm) scope transmitance improve nearly 10%, there is the effect that protection Low-E layer is not affected by the external environment simultaneously, extend its work-ing life.
This energy-conservation coating structure is at height, dimming behavior under cold condition as shown in Figure 5, transmitted spectrum when high temperature (85 ℃) is black dotted lines in figure, transmitted spectrum when low temperature (25 ℃) is solid black lines in figure, contrast solar spectrum and visible spectrum, can find out that this energy-conservation coating structure has higher visible light transmissivity (peak value～48%), there is obvious sunlight regulating power, and before and after phase transformation, visible light transmissivity remains unchanged substantially, total can realize and regulate the sun to obtain hot merit energy in summer, there is heat insulation function in winter, thereby reach energy-saving effect cool in summer and warm in winter.
Selecting the ZnO film (AZO) of Al doping is low radiating layer, and general molecular formula is Al
xzn
1-xo, (0.01<x<0.04), thickness 300～450nm; Select SiO
2film is anti-reflection layer, thickness 50～150nm; Selecting hypovanadic oxide-based multilayer thermocolour film is energy-saving dimming layer, and multi-layer film structure is TiO
2/ VO
2/ TiO
2, thickness is respectively 10nm/70nm/240nm.
Described multifunction energy-saving glass coating structure is made up of a, b two portions glass coating structure, wherein a comprises glass substrate (1), deposits successively Low-E layer Al doping ZnO (AZO) and be positioned at the anti-reflection layer SiO on Low-E film on substrate (1)
2; B comprises glass substrate (2), at the hypovanadic oxide-based multilayer thermocolour membrane structure TiO of the upper deposition of substrate (2)
2/ VO
2/ TiO
2.
Concrete technology step is as follows:
(1) preparation of low radiating layer: substrate is selected silica glass (1), cleans through acetone, ethanol and deionized water standard ultrasound.Adopt multifunctional magnetic control sputtering system, take the ZnO of doped with Al (2%) as target, back end vacuum is 3 × 10
-5pa, depositing temperature is 250 ° of C, Ar airshed 40 is marked condition milliliter per minute (sccm), deposit thickness～375nm;
(2), on AZO film, adopt SiO
2(purity 99.99%) pottery is target, the SiO that under room temperature condition, deposit thickness is 90nm
2anti-reflection layer;
(3) preparation of energy-saving dimming layer: substrate is selected silica glass (2), cleans through acetone, ethanol and deionized water standard ultrasound.Adopt multifunctional magnetic control sputtering system, with TiO
2(purity 99.99%) is target, and back end vacuum is 3 × 10
-5pa, depositing temperature is 400 ° of C, Ar airshed 40sccm, successively depositing Ti O
2film and VO
2film, be respectively～10nm of deposit thickness and～70nm; At VO
2on film, with TiO
2(purity 99.99%) is target, Ar airshed 40sccm, the TiO of the about 240nm of deposit thickness under room temperature condition
2film;
(4) by two silica glass substrate combination encapsulation after difference deposit film, thin film layer, inner, forms a kind of Multifunction energy-saving glass coating structure.Wherein low radiating layer is near indoor, and energy-saving dimming layer is near outdoor.
The multifunction energy-saving glass coating structure preparing, its structure for by indoor to outdoor be respectively SiO
2/ AZO/ silica glass/air/silica glass/TiO
2/ VO
2/ TiO
2, schematic diagram is referring to accompanying drawing 6.
This energy-conservation coating structure is at height, dimming behavior under cold condition as shown in Figure 7, transmitted spectrum when high temperature (85 ℃) is black dotted lines in figure, transmitted spectrum when low temperature (25 ℃) is solid black lines in figure, contrast solar spectrum and visible spectrum, can find out that this energy-conservation coating structure has higher visible light transmissivity (peak value～46%), there is obvious sunlight regulating power, and before and after phase transformation, visible light transmissivity remains unchanged substantially, total can realize and regulate the sun to obtain hot merit energy in summer, there is heat insulation function in winter, thereby reach energy-saving effect cool in summer and warm in winter.
The foregoing is only preferred embodiment of the present invention, not in order to limit essence technology contents scope of the present invention, essence technology contents of the present invention is to be broadly defined in the claim scope of application, any technology entity or method that other people complete, if defined identical with the claim scope of application, also or a kind of change of equivalence, be all covered by among this claim scope being regarded as.
All documents of mentioning in the present invention are all quoted as a reference in this application, are just quoted separately as a reference as each piece of document.In addition should be understood that, after having read foregoing of the present invention, those skilled in the art can make various changes or modifications the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. a multifunction energy-saving glass coating structure, wherein, described glass coating structure comprises:
Be located at the energy-saving dimming layer of glass towards an outdoor side;
Be located at the low radiating layer (Low-E layer) of glass towards an indoor side,
On wherein said low radiating layer, be also provided with anti-reflection layer.
2. glass coating structure as claimed in claim 1, is characterized in that,
Described low radiating layer is preferably one or more multilayered structures that form in AZO (Al doping ZnO), GZO (Ga doping ZnO), Ag doping ZnO, FTO, ITO, ATO or Ag and transparent oxide;
Described anti-reflection layer is preferably SiO
2, TiO
2layer or its combination; Preferred, the thickness of described anti-reflection layer can be between 20-200nm, preferably between 50-150nm.
3. glass coating structure as claimed in claim 1, is characterized in that, described low radiating layer is AZO (Al doping ZnO), GZO (Ga doping ZnO) or its combination.
4. glass coating structure as claimed in claim 1, is characterized in that, described energy-saving dimming layer is vanadium oxide thermocolour film or vanadium oxide Quito layer thermocolour membrane structure.
5. glass coating structure as claimed in claim 1, is characterized in that,
Described energy-saving dimming layer thickness be 50-400 nanometer,
Described low radiating layer film thickness be 50-450 nanometer or
The thickness range of anti-reflection layer is 10-200 nanometer.
6. glass coating structure as claimed in claim 1, is characterized in that, the visible light transmissivity of described glass coating structure is 75%-80%, and far infrared reflectivity is not less than 80% under wavelength 2.5um.
7. a preparation method for glass coating structure as claimed in claim 1, is characterized in that, comprises the steps:
Employing magnetron sputtering method deposits low radiating layer (Low-E layer) glass towards an indoor side, at the energy-saving dimming layer towards an outdoor side;
At the upper magnetron sputtering method deposition anti-reflection layer that adopts of described low radiating layer (Low-E layer).
8. an energy-conservation coated glass that contains multifunction energy-saving glass coating structure as claimed in claim 1, is characterized in that,
Described glass is layer glass or multiple glazing;
And described low radiating layer A is positioned near indoor one side, or between layer glass;
Described light modulation layer B is positioned near outdoor one side, or between layer glass.
9. goods that contain glass coating structure as claimed in claim 1.
10. anti-reflection layer is in an application for glass coating structure as claimed in claim 1, for improving its visible light transmissivity.
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