CN111925129A - Prevent blue light, high transmissivity coating front bezel and prevent blue light solar module - Google Patents
Prevent blue light, high transmissivity coating front bezel and prevent blue light solar module Download PDFInfo
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- 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
- C03C17/3417—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 all coatings being oxide coatings
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- 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
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0216—Coatings
- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
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- 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
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Abstract
The invention provides a blue light prevention high-transmittance film coating front plate which comprises float glass, wherein a first film structure is arranged on the float glass, the first film structure comprises a plurality of high-refractive-index film layers and at least one low-refractive-index film layer, and a film coating material used by the high-refractive-index film layers is Nb2O5The coating material used by the low refractive index film layer is SiO2. The invention also provides a blue light prevention solar cell module which comprises a front plate, an adhesive film for packaging, a solar cell chip, a photovoltaic junction box and an aluminum alloy auxiliary frame; the front plate adopts the blue light prevention and high transmittance coated front plate, and the first film structure phase of the blue light prevention and high transmittance coated front plateAnd the float glass is positioned at a position close to one side of the solar cell chip. This prevent blue light solar module is in whole sunlight spectral range, and sunshine passes through and is up to more than 90%, and this prevent blue light solar module colour of making is dense, and does not have the colour difference, and multi-angle, wide-angle observation, and the colour can be realized stably.
Description
Technical Field
The invention relates to a front plate used for a solar cell module, in particular to a blue light-proof high-transmittance film-coated front plate.
The invention also relates to a blue light prevention solar cell module.
Background
Solar energy is a clean energy, and with the deep research on the application of solar energy, the Building Integrated Photovoltaic (BIPV) technology is gradually mature. The traditional solar cell module has a single black-gray color system in appearance, and the application of colored solar cell modules is gradually accepted and popularized by people along with the requirements and improvement of building aesthetics and decoration individuation, and colored glass or colored plastic substrates are widely applied to occasions such as special buildings.
In the existing colored solar cell module, the blue solar cell module is better matched with a building, so that the application range is wider, and the popularization of the solar cell module with the blue decorative effect shows a popular trend.
Visible light plays an important role in stimulating the formation and realization of human visual functions. However, excessive light exposure can cause damage to the retina, resulting in impaired visual function and even blindness. With the progressive research on the mechanism of retinal photodamage, it is found that blue light (440nm-500nm) in visible light has high sensitivity and strong penetrating power on the retina, and is closely related to age-related macular degeneration with increasing incidence rate.
(1) The body-painted glass is used as a front plate for packaging the components. The glass body is colored, and the glass body is used as a front plate for packaging instead of the original ultra-white float glass, so that the colored solar cell module is packaged and manufactured. The method is mainly used for doping colored particles in the glass by adopting a Chemical Vapor Deposition (CVD) method in the production of float glass so as to enable the glass to present color. The doped particles are mainly particles containing metal components, so that the absorption of sunlight is high, the sunlight penetration rate is reduced, and the doped particles are used on the front plate of the solar cell module, so that the power generation efficiency of the solar cell module is greatly reduced.
(2) The dyed adhesive film is used to replace the colorless adhesive film used in the traditional component packaging. Replacing the colorless adhesive film for packaging the original solar module with a dyed adhesive film or adding a dyed adhesive film layer on the colorless adhesive film layer for packaging to obtain the colored solar cell module. The method is similar to the method (1), and the electricity generation efficiency of the solar cell module is influenced due to the fact that the dyed adhesive film absorbs sunlight heavily and has poor transmission.
Disclosure of Invention
The invention aims to solve the technical problem of providing a blue light-proof high-transmittance film-coated front plate with good blue light-proof effect and high sunlight transmittance.
The invention also aims to solve the technical problem of providing a blue light prevention solar cell module.
In order to solve the technical problem, the invention provides a blue light-proof high-transmittance film coating front plate, which comprises float glass;
the float glass is provided with a first film structure, the first film structure comprises a plurality of high-refractive-index film layers and at least one low-refractive-index film layer, and the coating material used by the high-refractive-index film layers is Nb2O5The coating material used by the low refractive index film layer is SiO2The high refractive index film layers and the low refractive index film layers are distributed at intervals in sequence, and the film layers closest to and farthest from the surface of the float glass are the high refractive index film layers.
As the optimization of the blue-light-proof high-transmittance film coating front plate, the first film structure comprises three high-refractive-index film layers and two low-refractive-index film layers, namely a first high-refractive-index film layer, a second low-refractive-index film layer, a third high-refractive-index film layer, a fourth low-refractive-index film layer and a fifth high-refractive-index film layer;
the thickness of the first high-refractive-index film layer is 21.78 nm-27.89 nm;
the thickness of the second low-refractive-index film layer is 75.30 nm-93.29 nm;
the thickness of the third high refractive index film layer is 43.50 nm-55.79 nm;
the thickness of the fourth low-refractive-index film layer is 75.31 nm-93.38 nm;
the thickness of the fifth high refractive index film layer is 21.70 nm-27.90 nm.
As the optimization of the anti-blue-light high-transmittance coating front plate, the thickness of the first high-refractive-index film layer is 24.03 nm;
the thickness of the second low-refractive-index film layer is 81.85 nm;
the thickness of the third high-refractive-index film layer is 48.08 nm;
the thickness of the fourth low-refractive-index film layer is 81.85 nm;
the thickness of the fifth high refractive index film layer is 24.03 nm.
This prevent blue light, high transmissivity coating film front bezel has following technological effect:
1. the number of the coating layers is reduced, and the number of the coating layers is only 5.
2. The magnetron sputtering coating method can be used for large-area batch coating, and the production cost is reduced.
3. The film system provided by the blue-light-proof high-transmittance film coating front plate is symmetrical and regular, the film thickness of each film is basically equivalent, the film is thin, the structure of the film system is stable, the production control is easy, the production cost is reduced, and the production beat is improved.
4. The blue light prevention effect is good, high reflection and low transmission (high reflectivity and low transmission rate) are realized in a harmful blue light wavelength range (400nm-440nm), and the light transmission is higher in a beneficial blue light wavelength range (480nm-500 nm).
5.Nb2O5Has excellent optical constant and higher refractive index than other common high refractive index materials such as TiO2Or Ti3O5And the like, the sputtering is easy, the sputtering rate is high, the film deposition efficiency is high, and the optical performance of the prepared film layer is good. The coating time is saved, the production takt is improved, and the productivity is increased.
6. The solar power generation window (printing opacity electricity generation curtain) that makes except the basic function of window, can realize the sunshine electricity generation, and is visual, and avoids the human eye to receive blue light pollution, and the power generation window that makes is the thick, bright-colored blue of colour, and the multi-angle is observed and is presented same kind of colour, and color stability is good.
Preferably, the float glass is provided with an AS/AF film on the surface of the side facing away from the first film structure.
The AS/AF film enables the blue light-proof high-transmittance coated front plate to have the functions of scratch resistance, wear resistance, pollution resistance, easy cleaning, fingerprint resistance and the like. The surface is prevented from being polluted or damaged, the frequency of manually cleaning the outer surface of the solar cell module is reduced, and the labor and the financial resources are saved.
Preferably, a second film structure is arranged between the float glass and the AS/AF film, the second film structure also comprises four high-refractive-index film layers and four low-refractive-index film layers, and the coating material used by the high-refractive-index film layers is Nb2O5The coating material used by the low refractive index film layer is SiO2；
The sixth high refractive index film layer, the seventh low refractive index film layer, the eighth high refractive index film layer, the ninth low refractive index film layer, the tenth high refractive index film layer, the eleventh low refractive index film layer, the twelfth high refractive index film layer and the thirteenth low refractive index film layer are arranged in sequence from the float glass to the outside;
the thickness of the sixth high-refractive-index film layer is 12.61 nm;
the thickness of the seventh low-refractive-index film layer is 39.72 nm;
the thickness of the eighth high-refractive-index film layer is 30.25 nm;
the ninth low-refractive-index film layer is 99.36nm thick;
the thickness of the tenth high-refractive-index film layer is 12.37 nm;
the thickness of the eleventh low-refractive-index film layer is 18.23 nm;
the thickness of the twelfth high-refractive-index film layer is 23.98 nm;
the thickness of the thirteenth low refractive index film layer was 105.70 nm.
This prevent blue light, high transmissivity coating film front bezel has plated the second membrane structure at glass surface, and the reflectivity of about 4% on glass surface has been eliminated to the second membrane structure, has improved the sunlight transmissivity once more, and then has improved solar module's generating efficiency.
Preferably, the surface of the float glass far away from the first film structure is a rough matte surface, and an AS/AF film is arranged on the matte surface.
The anti-blue-light high-transmittance coated front plate has the functions of scratch resistance, wear resistance, stain resistance, easy cleaning, fingerprint resistance and the like. The surface is prevented from being polluted or damaged, and the like, and meanwhile, an AG anti-dazzle effect is formed because the outer surface of the float glass is made into a diffuse reflection matte surface, so that the surface specular reflection is eliminated, and the glass has better environment friendliness.
In order to solve the technical problem, the invention also provides a blue light prevention solar cell module which comprises a front plate, an adhesive film for packaging, a solar cell chip, a photovoltaic junction box and an aluminum alloy auxiliary frame; the front plate adopts the blue light prevention and high transmittance coated front plate, and the first film structure of the blue light prevention and high transmittance coated front plate is positioned at one side close to the solar cell chip relative to float glass.
Preferably, the solar cell chip is a light-transmitting solar cell chip or a light-impermeable solar cell chip.
This prevent blue light solar module is in whole sunlight spectral range, and sunshine passes through and is up to more than 90%, and this prevent blue light solar module colour of making is dense, and does not have the colour difference, and multi-angle, wide-angle observation, and the colour can be realized stably.
Drawings
Fig. 1 is a schematic structural diagram of a blue-light-proof high-transmittance film-coated front plate in the first embodiment.
Fig. 2 is a schematic structural diagram of a light-transmitting solar cell chip according to an embodiment.
FIG. 3 is a film structure diagram of a front plate of a blue-light-proof high-transmittance film coating in one embodiment.
FIG. 4 is a spectrum of a blue-blocking, high transmittance coated front plate of the first embodiment.
FIG. 5 is a chromaticity diagram of the front plate of the blue-blocking high transmittance coated film after the coating of the first embodiment.
Fig. 6 shows a CIE L a b color model in the first embodiment.
Fig. 7 is a schematic structural diagram of a blue light prevention solar cell module according to an embodiment.
Fig. 8 is a schematic structural diagram of a blue light prevention solar cell module in the third embodiment.
Fig. 9 is a schematic structural diagram of a blue light prevention solar cell module in the fourth embodiment.
Fig. 10 is a partial schematic view of a blue-light-proof solar cell module according to the fifth embodiment.
Fig. 11 is a partial schematic view of a blue-light-proof solar cell module according to the fifth embodiment.
FIG. 12 is a single-sided reflectance spectrum of an untreated surface of the ultra-white glass of example five.
FIG. 13 is a comparison spectrum of single-sided reflectance of the ultra-white glass of example V after being single-sided uncoated and AR coated.
FIG. 14 is a partial schematic view of a blue-light-blocking solar cell module according to a sixth embodiment.
FIG. 15 is a partial schematic view of a blue-light resistant solar cell module according to a seventh embodiment.
Detailed Description
Example one
As shown in figure 1, the blue-light-proof high-transmittance coated front plate 3 comprises float glass, a first film structure is arranged on the float glass and comprises three high-refractive-index film layers and two low-refractive-index film layers, and a coating material used by the high-refractive-index film layers is Nb2O5The coating material used for the low refractive index film layer is SiO2The three high refractive index film layers and the two low refractive index film layers are sequentially distributed at intervals, and the film layers closest to and farthest from the surface of the float glass are the high refractive index film layers.
The first film structure comprises three high-refractive-index film layers and two low-refractive-index film layers, and the first high-refractive-index film layer 32a, the second low-refractive-index film layer 32b, the third high-refractive-index film layer 32c, the fourth low-refractive-index film layer 32d and the fifth high-refractive-index film layer 32e are arranged from the surface of the float glass to the outer side.
The thickness of the first high refractive index film layer 32a is 24.03 nm;
the thickness of the second low refractive index film layer 32b is 81.85 nm;
the thickness of the third high refractive index film layer 32c is 48.08 nm;
the thickness of the fourth low refractive index film layer 32d is 81.85 nm;
the thickness of the fifth high refractive index film layer 32e was 24.03 nm.
This prevent blue light solar module, including front bezel, for the encapsulation glued membrane, solar cell chip, photovoltaic terminal box and aluminum alloy attach the frame, the front bezel adopts foretell prevent blue light, high transmissivity coating film front bezel, prevent that the first membrane structure of blue light, high transmissivity coating film front bezel is in near solar cell chip one side position relative float glass.
The preparation process of the blue-light-proof solar cell module comprises the following steps:
step a) preparing a light-transmitting solar cell chip.
As shown in fig. 2, a light-transmitting chip 1(3.2mm thick, glass-based cigs thin-film solar cell chip) provided by german corporation for use in a solar cell chip has a black region 12 as a cell chip region and a blank region 11 as an array light-transmitting region without a chip (the size or shape of the blank region 11 can be adjusted to adjust the degree of light transmission of the chip by adjusting the degree of closeness of the array).
And b) preparing a coated front plate with blue light resistance and high sunlight transmittance.
Cleaning and drying the float glass to be coated, wherein the substrate used in the embodiment is tempered ultra-white float glass (n is 1.52) with the thickness of 5 mm;
the vacuum coating equipment is vacuumized, the magnetron sputtering coating equipment is used in the embodiment, and the vacuum degree of the sputtering chamber is pumped to at least 8.0 multiplied by 10-3Pa or higher;
and mounting the cleaned and dried substrate to be coated on the substrate frame, and entering the cavity to be coated along with the substrate frame.
The following film systems were used in this example: SubH (24.03nm) L (81.85nm) H (48.08nm) L (81.85nm) H (24.03nm) | Air. (Sub is a substrate) and Air is an Air side);
wherein H is a high refractive index material, and Nb is used2O5(niobium pentoxide); l is a low refractive index material, and SiO is used2(silica); air is the emergent medium Air.
As shown in FIG. 3, the blue light-proof film system structure of the blue light-proof high-transmittance coated front plate 3 is a regular and symmetrical structure, the production is easy to control, and the film system stability is good.
The coating of the blue-light-proof high-transmittance coating front plate 3 is finished, the vacuum is broken, and the coated substrate is taken out and subjected to data detection.
The transmittance and reflectance spectra of the substrate are shown in fig. 4. After the coating, the substrate has better blue light prevention effect than that of the prior art, realizes high reflection and low transmission (high reflectivity and low transmission rate) in a harmful blue light wavelength range (400nm-440nm), and has higher transmission in a beneficial blue light wavelength range (480nm-500 nm); in the whole sunlight spectrum range, the sunlight can penetrate more than 90 percent.
Fig. 5 is a chromaticity diagram of the substrate after film coating, and when the incident angle AOI is 0 °, 10 °, 20 °, 30 °, 40 °, 50 °, 60 °, the color distribution is basically concentrated, so that the same color is ensured to be observed at multiple angles, and the color stability is good. The relative color values of the coated substrate are as follows:
the upper surface is the relevant color value of the coated substrate. From the above table, it can be known that the color saturation C (ab) is quite high, which ensures that the solar cell module packaged in the later period has thick color and bright color, and ensures that the solar cell module prepared by the method has thicker appearance color and brighter color than the colored solar cell module prepared by the prior art. And the AOI has small color difference under various angles. As can be seen from b, the color is quite blue (b reflects the degree of blue and yellow of the substrate after coating, positive values represent more yellow, and negative values represent more blue.), and the difference of b is small at each incident angle.
Remarking: CIE L a b pattern: in 1931, an international standard color expression standard was developed, especially for international color association (iso) colors, because the color standards are too many to be unified. The color system has no relationship to the printing apparatus or the equipment. L a b represents the full white to full black (as reflected by the L values) of the brightness (luminence) from one vertical axis, two horizontally extending planes represent colors, one of which is red to green (as reflected by the a values), and the other of which represents blue to yellow (as reflected by the b values), with reference to fig. 6.
And c) packaging the blue-light-proof solar cell module.
As shown in fig. 7, a glass-based copper indium gallium selenide thin-film solar cell chip used in the blue-light prevention solar cell module; the packaging adhesive film 2 is a photovoltaic PVB adhesive film (other thicknesses or other packaging adhesive films such as PU, SGP, POE, EVA and the like) with the thickness of 1.14 mm; the tempered ultra-white float glass 31 and the first film structure 32 jointly form the blue-light-proof high-transmittance film-coated front plate 3;
the photovoltaic junction box 4 is a split junction box (the photovoltaic junction box 4 can also be an integrated photovoltaic junction box, a side-connected photovoltaic junction box, a pen-type photovoltaic junction box, a back-connected photovoltaic junction box and the like); and finally installing the photovoltaic junction box 4 and the aluminum alloy auxiliary frame 5 for installation, and installing after the components are subjected to lamination, kettle pressure, EL, IV and other detection OK.
Step d) laminating the assembly.
The specific lamination process parameters are as follows:
as shown in the above table, the process parameters of the laminated light-transmitting solar cell module were used. The assembly was pre-pressed into a laminator according to the above table procedure.
Step e) the assembly kettle pressure.
The specific autoclave process parameters are as follows:
| temperature (. degree.C.) | Time (min) | Pressure (MPa) | Time (min) |
| 20 | / | / | / |
| 45 | 20 | 0.4 | 25 |
| 70 | 20 | 0.8 | 25 |
| 100 | 25 | 1 | 20 |
| 130 | 30 | 1.2 | 25 |
| 130 | 60 | 1.2 | 40 |
| 100 | 30 | 1.2 | 40 |
| 50 | 35 | 1.2 | 40 |
| 30 | 10 | 1.2 | 15 |
And (3) putting the laminated assembly on a kettle pressure workpiece rack, putting the assembly into a kettle pressure autoclave, performing kettle pressure according to the process parameters, and trimming the PVB adhesive film on the edge of the assembly after kettle pressure.
Step f) IV and EL detection (detection and analysis of power, voltage, current, thermal imaging defects and the like).
Step g) attaching the frame 5, and knotting the structural adhesive (two-component silicone structural adhesive).
And h) mounting the photovoltaic junction box 4.
And i) after the structural adhesive is cured OK, boxing, packaging and warehousing the assembly.
Example two
The blue-light-proof high-transmittance film coating front plate 3 comprises float glass, wherein a first film structure is arranged on the float glass and comprises three high-refractive-index film layers and two low-refractive-index film layers, and a film coating material used by the high-refractive-index film layers is Nb2O5The coating material used for the low refractive index film layer is SiO2The three high refractive index film layers and the two low refractive index film layers are sequentially distributed at intervals, and the film layers closest to and farthest from the surface of the float glass are the high refractive index film layers.
The first film structure comprises three high-refractive-index film layers and two low-refractive-index film layers, and the first high-refractive-index film layer 32a, the second low-refractive-index film layer 32b, the third high-refractive-index film layer 32c, the fourth low-refractive-index film layer 32d and the fifth high-refractive-index film layer 32e are arranged from the surface of the float glass to the outer side.
The thickness of the first high refractive index film layer 32a is 21.78 nm;
the thickness of the second low refractive index film layer 32b is 75.30 nm;
the thickness of the third high refractive index film layer 32c is 43.50 nm;
the thickness of the fourth low refractive index film layer 32d is 75.31 nm;
the thickness of the fifth high refractive index film layer 32e was 21.70 nm.
This prevent blue light solar module, including front bezel, for the encapsulation glued membrane, solar cell chip, photovoltaic terminal box and aluminum alloy attach the frame, the front bezel adopts foretell prevent blue light, high transmissivity coating film front bezel, prevent that the first membrane structure of blue light, high transmissivity coating film front bezel is in near solar cell chip one side position relative float glass.
The preparation process of the blue-light-proof solar cell module comprises the following steps:
step a) preparing a light-transmitting solar cell chip.
The solar cell chip is a light-transmitting chip (3.2mm thick, glass-based CIGS thin-film solar cell chip) provided by Germany, the black area 12 is a chip area with a cell, and the blank area 11 is an array light-transmitting area without a chip (the size or shape of the blank area 11 can be adjusted to adjust the light-transmitting degree of the chip by adjusting the closeness degree of the array).
And b) preparing a coated front plate with blue light resistance and high sunlight transmittance.
Cleaning and drying float glass to be coated, wherein the used substrate is a blank glass substrate with the refractive index n of 1.50-2.20 at the position of 550nm, and the thickness d can be 0.2-10 mm;
vacuum-pumping the vacuum coating equipment, using magnetron sputtering coating equipment, and pumping the vacuum degree of the sputtering chamber to at least 8.0 x 10- 3Pa or higher;
and mounting the cleaned and dried substrate to be coated on the substrate frame, and entering the cavity to be coated along with the substrate frame.
The following film systems were used for introducing the film-forming film system and vacuum deposition: sub | H (21.78nm) L (75.30nm) H (43.50nm) L ((75.31nm) H ((21.70nm) | Air. (Sub is substrate);
wherein H is a high refractive index material, and Nb is used2O5(niobium pentoxide); l is a low refractive index material, and SiO is used2(silica); air is the emergent medium Air.
The blue light-proof film system structure used by the blue light-proof high-transmittance film coating front plate 3 is a regular symmetrical structure, the production is easy to control, and the film system stability is good.
The coating of the blue-light-proof high-transmittance coating front plate 3 is finished, the vacuum is broken, and the coated substrate is taken out and subjected to data detection.
After the coating, the substrate has better blue light prevention effect than that of the prior art, realizes high reflection and low transmission (high reflectivity and low transmission rate) in a harmful blue light wavelength range (400nm-440nm), and has higher transmission in a beneficial blue light wavelength range (480nm-500 nm); in the whole sunlight spectrum range, the sunlight can penetrate more than 90 percent.
And c) packaging the blue-light-proof solar cell module.
The glass-based copper indium gallium selenide thin-film solar cell chip is used for the blue-light-proof solar cell module; the packaging adhesive film 2 is a photovoltaic PVB adhesive film (other thicknesses or other packaging adhesive films such as PU, SGP, POE, EVA and the like) with the thickness of 1.14 mm; the tempered ultra-white float glass 31 and the first film structure 32 jointly form the blue-light-proof high-transmittance film-coated front plate 3;
the photovoltaic junction box 4 is a split junction box (the photovoltaic junction box 4 can also be an integrated photovoltaic junction box, a side-connected photovoltaic junction box, a pen-type photovoltaic junction box, a back-connected photovoltaic junction box and the like); and finally installing the photovoltaic junction box 4 and the aluminum alloy auxiliary frame 5 for installation, and installing after the components are subjected to lamination, kettle pressure, EL, IV and other detection OK.
Step d) laminating the assembly.
The specific lamination process parameters are as follows:
as shown in the above table, the process parameters of the laminated light-transmitting solar cell module were used. The assembly was pre-pressed into a laminator according to the above table procedure.
Step e) the assembly kettle pressure.
The specific autoclave process parameters are as follows:
| temperature (. degree.C.) | Time (min) | Pressure (MPa) | Time (min) |
| 15 | / | / | / |
| 40 | 15 | 0.3 | 20 |
| 60 | 15 | 0.5 | 20 |
| 90 | 20 | 0.8 | 15 |
| 120 | 25 | 0.8 | 20 |
| 120 | 50 | 0.8 | 30 |
| 90 | 20 | 0.8 | 30 |
| 40 | 30 | 0.8 | 30 |
| 25 | 6 | 0.8 | 10 |
And (3) putting the laminated assembly on a kettle pressure workpiece rack, putting the assembly into a kettle pressure autoclave, performing kettle pressure according to the process parameters, and trimming the PVB adhesive film on the edge of the assembly after kettle pressure.
Step f) IV and EL detection (detection and analysis of power, voltage, current, thermal imaging defects and the like).
Step g) attaching the frame 5, and knotting the structural adhesive (two-component silicone structural adhesive).
And h) mounting the photovoltaic junction box 4.
And i) after the structural adhesive is cured OK, boxing, packaging and warehousing the assembly.
EXAMPLE III
The blue-light-proof high-transmittance film coating front plate 3 comprises float glass, wherein a first film structure is arranged on the float glass and comprises three high-refractive-index film layers and two low-refractive-index film layers, and a film coating material used by the high-refractive-index film layers is Nb2O5The coating material used for the low refractive index film layer is SiO2The three high refractive index film layers and the two low refractive index film layers are sequentially distributed at intervals, and the film layers closest to and farthest from the surface of the float glass are the high refractive index film layers.
The first film structure comprises three high-refractive-index film layers and two low-refractive-index film layers, and the first high-refractive-index film layer 32a, the second low-refractive-index film layer 32b, the third high-refractive-index film layer 32c, the fourth low-refractive-index film layer 32d and the fifth high-refractive-index film layer 32e are arranged from the surface of the float glass to the outer side.
The thickness of the first high refractive index film layer 32a is 27.89 nm;
the thickness of the second low refractive index film layer 32b is 93.29 nm;
the thickness of the third high refractive index film layer 32c is 55.79 nm;
the thickness of the fourth low refractive index film layer 32d is 93.38 nm;
the thickness of the fifth high refractive index film layer 32e was 27.90 nm.
This prevent blue light solar module, including front bezel, for the encapsulation glued membrane, solar cell chip, photovoltaic terminal box and aluminum alloy attach the frame, the front bezel adopts foretell prevent blue light, high transmissivity coating film front bezel, prevent that the first membrane structure of blue light, high transmissivity coating film front bezel is in near solar cell chip one side position relative float glass.
The preparation process of the blue-light-proof solar cell module comprises the following steps:
step a) preparing a light-transmitting solar cell chip.
The solar cell chip is a light-transmitting chip (3.2mm thick, glass-based CIGS thin-film solar cell chip) provided by Germany, the black area 12 is a chip area with a cell, and the blank area 11 is an array light-transmitting area without a chip (the size or shape of the blank area 11 can be adjusted to adjust the light-transmitting degree of the chip by adjusting the closeness degree of the array).
And b) preparing a coated front plate with blue light resistance and high sunlight transmittance.
Cleaning and drying float glass to be coated, wherein the used substrate is a blank glass substrate with the refractive index n of 1.50-2.20 at the position of 550nm, and the thickness d can be 0.2-10 mm;
vacuum-pumping the vacuum coating equipment, using magnetron sputtering coating equipment, and pumping the vacuum degree of the sputtering chamber to at least 8.0 x 10- 3Pa or higher;
and mounting the cleaned and dried substrate to be coated on the substrate frame, and entering the cavity to be coated along with the substrate frame.
The following film systems were used for introducing the film-forming film system and vacuum deposition: SubH (27.89nm) L (93.29nm) H (55.79nm) L (93.38nm) H (27.90nm) | Air. (Sub is a substrate);
wherein H is a high refractive index material, and Nb is used2O5(niobium pentoxide); l is a low refractive index material, and SiO is used2(silica); air is the emergent medium Air.
The blue light-proof film system structure used by the blue light-proof high-transmittance film coating front plate 3 is a regular symmetrical structure, the production is easy to control, and the film system stability is good.
The coating of the blue-light-proof high-transmittance coating front plate 3 is finished, the vacuum is broken, and the coated substrate is taken out and subjected to data detection.
After the coating, the substrate has better blue light prevention effect than that of the prior art, realizes high reflection and low transmission (high reflectivity and low transmission rate) in a harmful blue light wavelength range (400nm-440nm), and has higher transmission in a beneficial blue light wavelength range (480nm-500 nm); in the whole sunlight spectrum range, the sunlight can penetrate more than 90 percent.
And c) packaging the blue-light-proof solar cell module.
As shown in fig. 8, this embodiment: the blue-light-proof solar cell module uses a light-transmitting chip (3.2mm thick, glass-based copper indium gallium selenide thin-film solar cell chip); 2, a packaging adhesive film, wherein a photovoltaic-grade PVB adhesive film with the thickness of 1.14mm is used in the embodiment, and other thicknesses or other packaging adhesive films can be used, such as PU, SGP, POE, EVA and the like; 31 is tempered ultra-white float glass; 32 is a first membrane structure; the tempered ultra-white float glass and the first film structure jointly form the blue-light-proof high-transmittance film-coated front plate 3; 6, ultra-white toughened glass (used as a back plate for packaging the solar cell; the thickness of the back plate is 5mm in the embodiment); 4 is a photovoltaic junction box; 5 is an aluminum alloy auxiliary frame for installation.
Step d) laminating the assembly.
The specific lamination process parameters are as follows:
as shown in the above table, the process parameters of the laminated light-transmitting solar cell module were used. The assembly was pre-pressed into a laminator according to the above table procedure.
Step e) the assembly kettle pressure.
The specific autoclave process parameters are as follows:
| temperature (. degree.C.) | Time (min) | Pressure (MPa) | Time (min) |
| 25 | / | / | / |
| 55 | 25 | 0.54 | 30 |
| 75 | 25 | 1.0 | 35 |
| 110 | 30 | 1.2 | 30 |
| 140 | 35 | 1.6 | 30 |
| 140 | 70 | 1.6 | 50 |
| 110 | 40 | 1.6 | 50 |
| 60 | 45 | 1.6 | 50 |
| 40 | 15 | 1.6 | 20 |
And (3) putting the laminated assembly on a kettle pressure workpiece rack, putting the assembly into a kettle pressure autoclave, performing kettle pressure according to the process parameters, and trimming the PVB adhesive film on the edge of the assembly after kettle pressure.
Step f) IV and EL detection (detection and analysis of power, voltage, current, thermal imaging defects and the like).
Step g) attaching the frame 5, and knotting the structural adhesive (two-component silicone structural adhesive).
And h) mounting the photovoltaic junction box 4.
And i) after the structural adhesive is cured OK, boxing, packaging and warehousing the assembly.
Example four
As shown in fig. 9
The present embodiment is different from the first embodiment only in that: the blue light-proof high-transmittance film coating front plate 3 also comprises an AS/AF film;
the float glass is provided with an AS/AF film on the surface of the side remote from the first film structure. The AS/AF film layer is formed by vacuum coating method, and the AS/AF material is subjected to ultra-high vacuum condition (about 8.0 × 10-3Pa or higher) to form a film
(or higher) deposition rate to form a dense AS/AF film on 1; or by other means, for example, directly spraying an AS/AF solution on the outer surface of the float glass to form an AS/AF film layer, and the AS/AF film, the float glass and the first film structure jointly form the blue-light-proof high-transmittance coated front plate 33.
The blue light-proof solar cell module prepared by adopting the blue light-proof and high-transmittance coated front plate in the embodiment has the functions of scratch resistance, wear resistance, stain resistance, easy cleaning, fingerprint resistance and the like. Avoid the surface to be contaminated or damage etc. reduce the frequency of this preventing blue light solar module surface of manual cleaning, advantage such as use manpower sparingly and financial resources.
EXAMPLE five
As shown in fig. 10 to 11
The present embodiment is different from the fourth embodiment only in that: the blue-light-proof high-transmittance coated front plate 3 further comprises a second film structure 34.
A second film structure 34 is arranged between the float glass and the AS/AF film, the second film structure 34 also comprises four high-refractive-index film layers and four low-refractive-index film layers, and the coating material used by the high-refractive-index film layers is Nb2O5The coating material used by the low refractive index film layer is SiO2；
The sixth high refractive index film layer 34a, the seventh low refractive index film layer 34b, the eighth high refractive index film layer 34c, the ninth low refractive index film layer 34d, the tenth high refractive index film layer 34e, the eleventh low refractive index film layer 34f, the twelfth high refractive index film layer 34g and the thirteenth low refractive index film layer 34h are arranged in sequence from the float glass to the outside;
the thickness of the sixth high refractive index film layer 34a is 12.61 nm;
the thickness of the seventh low refractive index film layer 34b was 39.72 nm;
the eighth high refractive index film layer 34c has a thickness of 30.25 nm;
the ninth low refractive index film layer 34d has a thickness of 99.36 nm;
the tenth high refractive index film layer 34e has a thickness of 12.37 nm;
the thickness of the eleventh low refractive index film layer 34f is 18.23 nm;
the thickness of the twelfth high-refractive-index film layer 34g is 23.98 nm;
the thirteenth low refractive index film layer 34h was 105.70nm thick.
The second film structure 34 is prepared by a vacuum magnetron sputtering coating method; the AS/AF film, the float glass, the first film structure and the second film structure 34 jointly form the blue-light-proof high-transmittance coated front plate 3.
Because the outer surface of the float glass is plated with the second film structure 34; the reflectivity of about 4 percent of the surface of the glass is eliminated, the solar transmittance is improved again, and the power generation efficiency of the blue-light-proof solar cell module is further improved.
FIG. 12 shows a spectrum of single-sided reflectance of an untreated float glass surface, which is about 4% of that of a float glass surface. By plating the AR film on the glass surface, the solar transmittance can be effectively improved.
The comparison spectrum result of the single-sided reflectivity of the ultra-white glass after single-sided non-coating and AR coating is shown in FIG. 13, and the second film structure 34 is as follows: SubI H (12.61nm) L (39.72nm) H (30.25nm) L (99.36nm) H (12.37nm) L (18.23nm) H (23.98nm) L (105.70nm) | Air (the H material is Ti3O 5; and the L material is SiO 2).
EXAMPLE six
As shown in fig. 14
The present embodiment is different from the first embodiment only in that: the surface of the float glass of the blue-light-proof high-transmittance coated front plate 3, which is far away from the first film structure, is a rough matte surface, and the matte surface forms a rough surface, so that a matte anti-dazzle effect is achieved; the matte surface, the float glass and the first film structure jointly form the blue-light-proof high-transmittance film-coated front plate 3.
The float glass has a matte surface formed as follows:
(1) adopting solar ultra-white rolled glass;
(2) suede glass is adopted;
(3) adopting patterned glass;
(4) chemically etching the glass;
(5) adopting sand blasting glass on the surface; and so on.
The advantages of this embodiment are: because the diffuse reflection matte surface is manufactured, an AG anti-dazzle effect is formed, the surface mirror reflection is eliminated, and the environment friendliness is better.
EXAMPLE seven
As shown in fig. 15
The present embodiment differs from embodiment six only in that: the matte surface of the blue-light-proof high-transmittance coated front plate 3 is also provided with an AS/AF film layer.
The AS/AF material is subjected to an ultra-high vacuum condition (about 8.0X 10-3Pa or higher) to
(or higher) deposition rates to form a dense AS/AF film on 1, or by other means, such AS direct spraying of AS/AF lotion to form an AS/AF film layer on the matte surface; the matte surface is a rough surface formed on the outer surface of the float glass; the matte anti-dazzle effect is achieved; the AS/AF film layer, the matte surface, the float glass and the first film structure jointly form the blue-light-proof high-transmittance film-coated front plate 3.
The advantages of this embodiment: the prepared blue light-proof solar cell module has the functions of scratch resistance, wear resistance, stain resistance, easy cleaning, fingerprint resistance and the like. The surface is prevented from being polluted or damaged, the frequency of manually cleaning the outer surface of the blue-light-proof solar cell module is reduced, and the labor and the financial resources are saved; meanwhile, the outer surface of the glass is made into a diffuse-reflection matte surface, so that an AG anti-dazzle effect is formed, surface specular reflection is eliminated, and the glass is better in environment friendliness.
Example eight
The present embodiment is different from the first embodiment only in that: the blue-light-proof solar cell module replaces a light-transmitting solar cell chip with a light-tight solar cell chip (such as solar cell chips of copper indium gallium selenide, gallium arsenide, cadmium telluride, monocrystalline silicon, polycrystalline silicon and the like), and is purely made into a blue solar cell module.
While only eight embodiments of the present invention have been described, it should be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit of the present invention, and these changes and modifications should be construed as falling within the scope of the present invention, such as the number of the gas injection holes 11a, the angle of the gas injection holes 11a biased to the lower side of the drill bit, and so on.
Claims (8)
1. A blue light-proof high-transmittance coated front plate comprises float glass and is characterized in that:
the float glass is provided with a first film knotThe structure comprises a first film structure and a second film structure, wherein the first film structure comprises a plurality of high-refractive-index film layers and at least one low-refractive-index film layer, and a coating material used by the high-refractive-index film layers is Nb2O5The coating material used by the low refractive index film layer is SiO2The high refractive index film layers and the low refractive index film layers are distributed at intervals in sequence, and the film layers closest to and farthest from the surface of the float glass are the high refractive index film layers.
2. The blue-light resistant, high-transmittance coated front sheet as claimed in claim 1, wherein:
the first film structure comprises three high-refractive-index film layers and two low-refractive-index film layers, namely a first high-refractive-index film layer, a second low-refractive-index film layer, a third high-refractive-index film layer, a fourth low-refractive-index film layer and a fifth high-refractive-index film layer;
the thickness of the first high-refractive-index film layer is 21.78 nm-27.89 nm;
the thickness of the second low-refractive-index film layer is 75.30 nm-93.29 nm;
the thickness of the third high refractive index film layer is 43.50 nm-55.79 nm;
the thickness of the fourth low-refractive-index film layer is 75.31 nm-93.38 nm;
the thickness of the fifth high refractive index film layer is 21.70 nm-27.90 nm.
3. The blue-light resistant, high-transmittance coated front sheet as claimed in claim 2, wherein:
the thickness of the first high-refractive-index film layer is 24.03 nm;
the thickness of the second low-refractive-index film layer is 81.85 nm;
the thickness of the third high-refractive-index film layer is 48.08 nm;
the thickness of the fourth low-refractive-index film layer is 81.85 nm;
the thickness of the fifth high refractive index film layer is 24.03 nm.
4. The blue-light resistant, high-transmittance coated front sheet as claimed in claim 1, wherein:
the float glass is provided with an AS/AF film on the surface of the side remote from the first film structure.
5. The anti-blue light, high transmittance coated front sheet according to claim 4, wherein:
a second film structure is arranged between the float glass and the AS/AF film, the second film structure also comprises four high-refractive-index film layers and four low-refractive-index film layers, and the coating material used by the high-refractive-index film layers is Nb2O5The coating material used by the low refractive index film layer is SiO2；
The sixth high refractive index film layer, the seventh low refractive index film layer, the eighth high refractive index film layer, the ninth low refractive index film layer, the tenth high refractive index film layer, the eleventh low refractive index film layer, the twelfth high refractive index film layer and the thirteenth low refractive index film layer are arranged in sequence from the float glass to the outside;
the thickness of the sixth high-refractive-index film layer is 12.61 nm;
the thickness of the seventh low-refractive-index film layer is 39.72 nm;
the thickness of the eighth high-refractive-index film layer is 30.25 nm;
the ninth low-refractive-index film layer is 99.36nm thick;
the thickness of the tenth high-refractive-index film layer is 12.37 nm;
the thickness of the eleventh low-refractive-index film layer is 18.23 nm;
the thickness of the twelfth high-refractive-index film layer is 23.98 nm;
the thickness of the thirteenth low refractive index film layer was 105.70 nm.
6. The anti-blue light, high transmittance coated front sheet according to claim 4, wherein:
the surface of the float glass, which is far away from the first film structure, is a rough matte surface, and an AS/AF film is arranged on the matte surface.
7. The utility model provides a prevent blue light solar module, includes that front bezel, encapsulation attach frame with glued membrane, solar cell chip, photovoltaic terminal box and aluminum alloy, characterized by: the front plate adopts the blue light-proof high-transmittance coated front plate as claimed in any one of claims 1 to 6, and the first film structure of the blue light-proof high-transmittance coated front plate is positioned at a position close to one side of a solar cell chip relative to float glass.
8. The blue-light resistant solar cell module as claimed in claim 7, wherein:
the solar cell chip is a light-transmitting solar cell chip or a light-tight solar cell chip.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112811828A (en) * | 2020-12-31 | 2021-05-18 | 安徽天柱绿色能源科技有限公司 | Gradient solar front plate, manufacturing method thereof and solar assembly packaging structure |
| CN114262162A (en) * | 2021-12-21 | 2022-04-01 | 夏能科技(北京)有限公司 | Design method of long-acting photovoltaic glass with decoration function |
| CN115241308A (en) * | 2022-08-04 | 2022-10-25 | 浙江晶科能源有限公司 | Float double-glass assembly |
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| CN114262162A (en) * | 2021-12-21 | 2022-04-01 | 夏能科技(北京)有限公司 | Design method of long-acting photovoltaic glass with decoration function |
| CN115241308A (en) * | 2022-08-04 | 2022-10-25 | 浙江晶科能源有限公司 | Float double-glass assembly |
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