CN113471316B - Solar black backboard with high infrared reflectivity - Google Patents

Solar black backboard with high infrared reflectivity Download PDF

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Publication number
CN113471316B
CN113471316B CN202110689632.3A CN202110689632A CN113471316B CN 113471316 B CN113471316 B CN 113471316B CN 202110689632 A CN202110689632 A CN 202110689632A CN 113471316 B CN113471316 B CN 113471316B
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layer
parts
solar
black
adhesive layer
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CN113471316A (en
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蔡书义
焦华
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Zhejiang Sinopoly Materials Co ltd
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Zhejiang Sinopoly Materials Co ltd
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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
    • H01L31/049—Protective back sheets
    • 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
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/056—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means the light-reflecting means being of the back surface reflector [BSR] type
    • 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
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • 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
    • 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
    • Y02E10/52—PV systems with concentrators
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention relates to the technical field of solar back plates, in particular to a solar black back plate with high infrared reflectivity. The solar black backboard with the high infrared reflectivity comprises a weather-resistant layer, an adhesive layer, a PET substrate layer and a functional layer which are sequentially arranged, wherein the functional layer is adjacent to an EVA adhesive layer of a solar cell; the functional layer is prepared from the following raw materials in parts by weight: 20-30 parts of orthoyttrium manganate powder, 10-15 parts of nano titanium dioxide, 40-60 parts of epoxy resin, 15-20 parts of black pigment, 1-3 parts of dispersing agent and 8-10 parts of solvent. The solar black backboard has good reflectivity, and can improve the utilization rate of solar energy and the power generation efficiency. Meanwhile, through tests, the solar black backboard with the functional layer has low water vapor transmittance, so that the solar backboard has good water resistance.

Description

Solar black backboard with high infrared reflectivity
Technical Field
The invention relates to the technical field of solar back plates, in particular to a solar black back plate with high infrared reflectivity.
Background
Solar modules are devices that directly or intermittently convert solar energy into electrical energy by absorbing sunlight, either through the photoelectric or photochemical effects. The existing crystalline silicon solar component mainly comprises toughened glass, EVA, battery pieces, a back plate and a junction box, wherein the back plate is mainly used for protecting solar elements and preventing water vapor, oxygen, corrosive substances and the like from damaging the battery pieces and the like in the component.
The traditional solar backboard is mostly white, sunlight required by the battery piece can be reflected onto the battery piece, and unnecessary near infrared light can be reflected out of the solar module, so that the utilization rate of the sunlight and the power generation efficiency of the solar module can be improved. However, the color difference between the white back plate and the battery piece is large, and the overall appearance of the solar module is affected. A black back sheet has appeared later, which can effectively improve the appearance problems of the white back sheet, but the existing black back sheet can absorb almost all visible light, and has extremely strong absorption capacity for near infrared light, resulting in greatly increasing the temperature of the solar module.
Temperature is a major factor affecting the photoelectric conversion efficiency of solar modules, and is mainly expressed in: the short-circuit current increases slowly with increasing temperature; the open circuit voltage drops linearly with increasing temperature, and the voltage per cell is reduced by 2mV for every 1 deg.c rise in the range of 20-100 deg.c. The conversion efficiency of the battery plate is reduced by 0.35 percent when the temperature of the battery plate is increased by 1 ℃. Based on this, it is necessary to reduce the temperature of the black back sheet solar module.
The application number 201810422995.9 discloses a light-transmitting solar module and a preparation method thereof, wherein a backboard of the solar module is provided with an infrared barrier layer comprising a reflection coating and a doped metal oxide coating, the reflection coating is any one of a silver coating and a copper sulfide coating, and the doped metal oxide coating is any one of a boron-doped zinc oxide coating and an aluminum-doped zinc oxide coating; meanwhile, a light-transmitting wire slot is formed in the thin film solar cell. Although the patent can avoid the problem that the visible light transmittance or the photoelectric conversion rate is greatly reduced due to blocking of the infrared light in the prior art, the reflection efficiency of the infrared light is required to be further improved.
CN201410659733.6 discloses a high-efficiency color-giving solar cell backboard and a preparation method thereof, wherein the solar cell backboard comprises a substrate layer, a fluorocarbon layer and a sol layer. The sol layer is arranged between one fluorocarbon layer and the substrate layer, so that on one hand, the permeation of water vapor can be prevented, and the ageing performance of the solar backboard is improved; on the other hand, the sol layer has better adsorption force, so that the fluorocarbon layer of the outer layer is not easy to fall off; and the fluorocarbon layer is solidified and formed on the substrate layer, so that the process difficulty of the solar cell backboard can be reduced, the production quality and the production efficiency of the solar cell backboard are improved, and the reflection efficiency of the solar cell backboard on infrared rays is required to be further improved.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a solar black backboard with high infrared reflectivity, which has better reflectivity, and can improve the utilization rate of solar energy and the power generation efficiency. .
In order to achieve the above purpose, the present invention provides the following technical solutions:
the solar black backboard with the high infrared reflectivity comprises a weather-resistant layer, an adhesive layer, a PET substrate layer and a functional layer which are sequentially arranged, wherein the functional layer is adjacent to an EVA adhesive layer of a solar cell; the functional layer is prepared from the following raw materials in parts by weight: 20-30 parts of orthoyttrium manganate powder, 10-15 parts of nano titanium dioxide, 40-60 parts of epoxy resin, 15-20 parts of black pigment, 1-3 parts of dispersing agent and 8-10 parts of solvent.
Preferably, the weather-proof layer is a polyethylene terephthalate layer or a polyvinylidene fluoride layer, and the thickness of the weather-proof layer is 0.07-0.08mm.
Preferably, the bonding layer is an epoxy resin adhesive layer or an acrylic resin adhesive layer, and the thickness of the bonding layer is 0.02-0.04mm.
Preferably, the thickness of the PET substrate layer is 0.25-0.5mm.
Preferably, the average particle size of the yttrium orthomanganate powder is 80-160nm; the average grain diameter of the nano titanium dioxide is 200-240nm; the average particle size of the black pigment is 400-700nm; the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 2:1.
preferably, the dispersant is selected from one or more of fatty acid esters, phthalic acid esters and fatty acid amides.
Preferably, the solvent is selected from one or more of butanone, cyclohexanone, methyl isobutyl ketone and ethyl acetate.
The invention also provides a method for the solar black backboard with high infrared reflectivity, which comprises the following steps:
(1) Weighing the raw materials of the functional layer according to the weight part ratio, putting the raw materials into a reaction kettle for mixing, stirring at 7500rpm for 3-6 hours at 250-300 ℃, and fully mixing and dispersing;
(2) Coating the obtained dispersion on the surface of the PET substrate layer, and drying and curing for 10-15min at 80-100 ℃;
(3) Coating the adhesive layer on the other surface of the PET substrate layer, and drying and curing for 10-15min at 80-100 ℃;
(4) And (3) adhering the weather-resistant layer on the adhesive layer, and drying and curing for 2-4d at room temperature to obtain the solar black backboard with high infrared reflectivity.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the functional layer is prepared by the screened orthoyttrium manganate powder and the nano titanium dioxide, so that the solar black backboard has good reflectivity, and can reflect the absorbed visible light and near infrared light to the silicon crystal solar cell, thereby improving the solar energy utilization rate; meanwhile, near infrared light which cannot be absorbed by the silicon crystal solar cell can be reflected to the outside of the solar module, so that the temperature rise caused by the fact that the black backboard absorbs light with partial wavelength is avoided, and the power generation efficiency is further improved. Meanwhile, through tests, the solar black backboard with the functional layer has low water vapor transmittance, so that the solar backboard has good water resistance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
1. a weather resistant layer; 2. a bonding layer; 3. a PET substrate layer; 4. functional layer.
Detailed Description
The following description of the embodiments of the present invention will be apparent from, and is intended to provide a thorough description of, the embodiments of the present invention, and not a complete description of, the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Example 1
The utility model provides a solar energy black backplate that infrared reflectivity is high, includes weather resistant layer 1, tie coat 2, PET substrate layer 3 and functional layer 4 that set gradually, wherein: the weather-resistant layer 1 is a polyethylene terephthalate layer, and the thickness of the weather-resistant layer is 0.07mm; the bonding layer 2 is an epoxy resin adhesive layer, and the thickness of the bonding layer is 0.02mm; the thickness of the PET substrate layer 3 is 0.25mm; the functional layer 4 is adjacent to an EVA adhesive layer of the solar cell, and the thickness of the EVA adhesive layer is 0.15mm;
the functional layer 4 is prepared from the following raw materials in parts by weight: 20 parts of yttrium orthomanganate powder, 10 parts of nano titanium dioxide, 40 parts of epoxy resin, 15 parts of black pigment, 1 part of dispersing agent and 8 parts of solvent;
in the embodiment, the average particle size of the yttrium orthomanganate powder is 80nm; the average grain diameter of the nano titanium dioxide is 200nm; the average particle size of the black pigment cobalt black is 400nm; the dispersing agent is phthalate; the solvent is butanone.
Example 2
The utility model provides a solar energy black backplate that infrared reflectivity is high, includes weather resistant layer 1, tie coat 2, PET substrate layer 3 and functional layer 4 that set gradually, wherein: the weather-resistant layer 1 is a polyethylene terephthalate layer, and the thickness of the weather-resistant layer is 0.075mm; the bonding layer 2 is an epoxy resin adhesive layer, and the thickness of the bonding layer is 0.03mm; the thickness of the PET substrate layer 3 is 0.3mm; the functional layer 4 is adjacent to the EVA adhesive layer of the solar cell, and the thickness of the functional layer is 0.15mm;
the functional layer 4 is prepared from the following raw materials in parts by weight: 25 parts of yttrium orthomanganate powder, 12.5 parts of nano titanium dioxide, 50 parts of epoxy resin, 17.5 parts of black pigment, 2 parts of dispersing agent and 9 parts of solvent;
wherein the average particle size of the yttrium orthomanganate powder is 120nm; the average grain diameter of the nano titanium dioxide is 200nm; the average particle size of the black pigment cobalt black is 400nm; the dispersing agent is fatty acid amide; the solvent is butanone.
Example 3
The utility model provides a solar energy black backplate that infrared reflectivity is high, includes weather resistant layer 1, tie coat 2, PET substrate layer 3 and functional layer 4 that set gradually, wherein: the weather-resistant layer 1 is a polyvinylidene fluoride layer, and the thickness of the weather-resistant layer is 0.08mm; the bonding layer 2 is an acrylic resin adhesive layer, and the thickness of the bonding layer is 0.02mm; the thickness of the PET substrate layer 3 is 0.5mm; the functional layer 4 is adjacent to the EVA adhesive layer of the solar cell, and the thickness of the functional layer is 0.15mm;
the functional layer 4 is prepared from the following raw materials in parts by weight: 30 parts of yttrium orthomanganate powder, 15 parts of nano titanium dioxide, 60 parts of epoxy resin, 20 parts of black pigment cobalt black, 3 parts of dispersing agent and 10 parts of solvent;
wherein, the average grain diameter of the yttrium orthomanganate powder is 160nm; the average particle diameter of the nano titanium dioxide is 240nm; the average particle diameter of the black pigment is 700nm; the dispersing agent is fatty acid ester; the solvent is butanone.
Example 4
The utility model provides a solar energy black backplate that infrared reflectivity is high, includes weather resistant layer 1, tie coat 2, PET substrate layer 3 and functional layer 4 that set gradually, wherein: the weather-resistant layer 1 is a polyvinylidene fluoride layer, and the thickness of the weather-resistant layer is 0.07mm; the bonding layer 2 is an acrylic resin adhesive layer, and the thickness of the bonding layer is 0.04mm; the thickness of the PET substrate layer 3 is 0.4mm; the functional layer 4 is adjacent to the EVA adhesive layer of the solar cell, and the thickness of the functional layer is 0.15mm;
the functional layer 4 is prepared from the following raw materials in parts by weight: 20 parts of yttrium orthomanganate powder, 10 parts of nano titanium dioxide, 45 parts of epoxy resin, 18 parts of black pigment cobalt black, 1.5 parts of dispersing agent and 8.5 parts of solvent;
wherein, the average grain diameter of the yttrium orthomanganate powder is 90nm; the average grain diameter of the nano titanium dioxide is 220nm; the average particle diameter of the black pigment is 450nm; the dispersing agent is phthalate; the solvent is cyclohexanone.
Comparative example 1
The only difference from example 2 is that: 25 parts of yttrium orthomanganate powder and 6.25 parts of nano titanium dioxide, namely the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 4:1.
comparative example 2
The only difference from example 2 is that: 25 parts of yttrium orthomanganate powder and 10 parts of nano titanium dioxide, namely the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 2.5:1.
comparative example 3
The only difference from example 2 is that: 25 parts of yttrium orthomanganate powder and 25 parts of nano titanium dioxide, namely the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 1:1.
comparative example 4
The only difference from example 2 is that: 25 parts of yttrium orthomanganate powder and 62.5 parts of nano titanium dioxide, namely the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 1:2.5.
comparative example 5
The only difference from example 2 is that: 25 parts of yttrium orthomanganate powder and 100 parts of nano titanium dioxide, namely the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 1:4.
comparative example 6
The only difference from example 2 is that: the orthoyttrium manganate powder is absent.
Comparative example 7
The only difference from example 2 is that: the nano titanium dioxide is absent.
Investigation example 1: reflectivity of
The solar black back sheets prepared in example 2 and comparative examples 1 to 7 were measured for reflectance in a wavelength range of 400 to 2500nm, respectively, with reference to the test standard of IEC-62805-2, and the measurement results are shown in table 1 below.
TABLE 1 reflectivity (%) of the solar black back sheet of the present invention in the wavelength range of 400-2500nm
In sunlight, the light with the wavelength of 400-1600nm accounts for about 90%, the silicon crystal solar cell mainly absorbs the light with the wavelength of 40-1100nm, the light with the wavelength of 380-780nm is visible light, and the light with the wavelength of 780-2500nm is near infrared light.
As can be seen from table 1, when the weight ratio of the yttrium orthomanganate powder to the nano-titania is 2:1, the solar black backboard has excellent reflection effect, so that visible light and near infrared light which can be absorbed by the silicon crystal solar cell can be reflected to the cell sheet, and the solar energy utilization rate is improved; meanwhile, near infrared light which cannot be absorbed by the silicon crystal solar cell can be reflected to the outside of the solar module, so that the temperature rise caused by the fact that the black backboard absorbs light with partial wavelength is avoided, and the power generation efficiency is further improved.
Investigation example 2: water vapor transmission rate
Referring to the test method of GB/T21529-2008, the water vapor transmission rates of the solar back sheets of example 2 and comparative examples 1-7 were measured, and the measurement results are shown in Table 2 below.
TABLE 2 Water vapor Transmission Rate (g/m) of the solar Black Back sheet of the invention 2 .24h)
Group of Example 2 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5 Comparative example 6 Comparative example 7
Water vapor transmission rate 1.7 2.0 2.3 1.8 2.2 2.6 4.4 3.9
As can be seen from table 2, the water vapor transmittance of example 2 is significantly lower than that of comparative examples 6 and 7, which indicates that the solar black back sheet of the present invention has low water vapor transmittance and good water resistance.
In addition, the solar back plate can meet the conventional requirements when other performances (such as peeling force with EVA) are tested.
In summary, the solar black backboard has excellent reflection effect, and can improve the utilization rate and the power generation efficiency of solar energy; meanwhile, the paint also has better water resistance.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (5)

1. The solar black backboard with the high infrared reflectivity is characterized by comprising a weather-resistant layer, an adhesive layer, a PET substrate layer and a functional layer which are sequentially arranged, wherein the functional layer is adjacent to an EVA adhesive layer of a solar cell; the functional layer is prepared from the following raw materials in parts by weight: 20-30 parts of orthoyttrium manganate powder, 10-15 parts of nano titanium dioxide, 40-60 parts of epoxy resin, 15-20 parts of black pigment, 1-3 parts of dispersing agent and 8-10 parts of solvent;
the average grain diameter of the yttrium orthomanganate powder is 120nm; the average grain diameter of the nano titanium dioxide is 200nm; the average particle size of the black pigment cobalt black is 400nm; the dispersing agent is fatty acid amide; the solvent is butanone; the weight ratio of the yttrium orthomanganate powder to the nano titanium dioxide is 2:1.
2. the solar black back sheet with high infrared reflectivity according to claim 1, wherein the weather-resistant layer is a polyethylene terephthalate layer or a polyvinylidene fluoride layer, and the thickness of the weather-resistant layer is 0.07-0.08mm.
3. The solar black back sheet with high infrared reflectivity according to claim 1, wherein the adhesive layer is an epoxy adhesive layer or an acrylic adhesive layer, and the thickness of the adhesive layer is 0.02-0.04mm.
4. The high infrared reflectance solar black back sheet according to claim 1, wherein the thickness of the PET substrate layer is 0.25 to 0.5mm.
5. A method for preparing the solar black backboard with high infrared reflectivity, which is characterized by comprising the following steps:
(1) Weighing the raw materials of the functional layer according to the weight part ratio, putting the raw materials into a reaction kettle for mixing, stirring at 7500rpm for 3-6 hours at 250-300 ℃, and fully mixing and dispersing;
(2) Coating the obtained dispersion on the surface of the PET substrate layer, and drying and curing for 10-15min at 80-100 ℃;
(3) Coating the adhesive layer on the other surface of the PET substrate layer, and drying and curing for 10-15min at 80-100 ℃;
(4) And (3) adhering the weather-resistant layer on the adhesive layer, and drying and curing for 2-4d at room temperature to obtain the solar black backboard with high infrared reflectivity.
CN202110689632.3A 2021-06-22 2021-06-22 Solar black backboard with high infrared reflectivity Active CN113471316B (en)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
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CN107792885A (en) * 2017-10-24 2018-03-13 武汉科技大学 Orthogonal mangaic acid yttrium powder body of high infrared reflection rate based on molten-salt growth method and preparation method thereof
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Publication number Priority date Publication date Assignee Title
CN204441301U (en) * 2015-02-06 2015-07-01 苏州中来光伏新材股份有限公司 A kind of black high reverse--bias functional form solar cell backboard and assembly thereof
CN107792885A (en) * 2017-10-24 2018-03-13 武汉科技大学 Orthogonal mangaic acid yttrium powder body of high infrared reflection rate based on molten-salt growth method and preparation method thereof
CN109713069A (en) * 2018-12-21 2019-05-03 苏州赛伍应用技术股份有限公司 A kind of black high reflection solar cell backboard and preparation method thereof
CN111732847A (en) * 2020-06-10 2020-10-02 苏州福斯特光伏材料有限公司 Black high-reflection composition, coating, pellet and solar cell back sheet

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Title
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