WO2013099479A1 - 積層体及びこれを用いた有機ｅｌ素子、窓、太陽電池モジュール - Google Patents

積層体及びこれを用いた有機ｅｌ素子、窓、太陽電池モジュール Download PDF

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Publication number
WO2013099479A1
WO2013099479A1 PCT/JP2012/080120 JP2012080120W WO2013099479A1 WO 2013099479 A1 WO2013099479 A1 WO 2013099479A1 JP 2012080120 W JP2012080120 W JP 2012080120W WO 2013099479 A1 WO2013099479 A1 WO 2013099479A1
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Prior art keywords
glass
resin
laminate
oxide glass
organic
Prior art date
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Ceased
Application number
PCT/JP2012/080120
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English (en)
French (fr)
Japanese (ja)
Inventor
沢井　裕一
内藤　孝
拓也 青柳
正 藤枝
元 村上
博史 吉田
雅彦 荻野
宮内　昭浩
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Hitachi Ltd
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Hitachi Ltd
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Priority to US14/369,056 priority Critical patent/US20150020879A1/en
Priority to CN201280064588.6A priority patent/CN104039547B/zh
Publication of WO2013099479A1 publication Critical patent/WO2013099479A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/122—Silica-free oxide glass compositions containing oxides of As, Sb, Bi, Mo, W, V, Te as glass formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/80—Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells
    • H10F19/804—Materials of encapsulations
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/841—Self-supporting sealing arrangements
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31507—Of polycarbonate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31623—Next to polyamide or polyimide

Definitions

  • the present invention relates to a laminate, an organic EL element using the same, a window, and a solar cell module.
  • a laminated body of glass, oxide or nitride and an organic polymer is formed on an organic polymer film such as polyesters or polyamides by a method such as sputtering, vapor deposition, CVD or sol-gel method.
  • an organic polymer film such as polyesters or polyamides by a method such as sputtering, vapor deposition, CVD or sol-gel method.
  • Patent Document 1 a gas barrier in which a barrier layer composed of a metal or an inorganic compound and an organic layer composed of an organic compound are sequentially laminated on at least one surface of a polymer film, and the barrier layer is formed using a vacuum evaporation method.
  • a sex laminate is disclosed.
  • An object of the present invention is to improve gas barrier properties.
  • the present invention provides a laminate comprising a substrate containing a resin or rubber, and an oxide glass formed on at least one surface of the substrate, wherein the oxide glass is the base It is characterized in that it softens and flows below the softening temperature of the material and is adhered to the substrate.
  • gas barrier properties can be improved.
  • DTA curve of glass Process image of forming an oxide layer on a polyimide film. SEM image of the laminate interface. The organic EL element structure schematic diagram used by experiment. Change in luminance of organic EL elements using various gas barrier films. Image of resin window. AA cross section of resin window. Process schematic drawing of the resin window. Permeability of oxide glass layer. Solar cell module structure.
  • the present invention relates to a gas barrier laminate, which is a laminate in which an oxide glass is continuously formed in layers on at least one surface of a substrate containing a resin or rubber (hereinafter referred to as a resin etc.).
  • the object glass is characterized in that it softens and flows at a temperature equal to or lower than the temperature of the resin or the like and is adhered to the resin or the like.
  • this oxide glass contains Ag and at least two of Te, P, and V. This is because the softening point of a glass containing at least two of Te, P and V and Ag is generally low.
  • gas barrier properties can be provided by forming an oxide glass layer on at least one side. Even when the base material has a thickness, the present invention can be applied, and in short, the oxide glass layer may be formed on the surface that blocks the passage of gas.
  • the laminate of the present invention particles of an oxide glass containing at least two of Te, P, and V and Ag are placed on a substrate containing a resin or the like, and then the softening point of the glass or more and the softening point or less of the resin or the like
  • the laminate is heated at a temperature to soften (melt) the glass particles and coat the substrate.
  • oxide glass having a composition containing two or more of Te, P, and V and Ag the softening point can be lowered without using elements harmful to the environment such as Pb and Bi. It is.
  • the base material such as resin can be coated with the glass once melted, so the density of the glass can be increased to improve the gas barrier properties of the laminate.
  • the substrate can be coated only by softening the glass particles, so that the substrate can be thickly coated if it is softened in a state where a large amount of glass particles are deposited. Also by this, the gas barrier properties of the laminate can be further improved.
  • the thickness of the oxide layer of the laminate is sprayed or printed.
  • the film thickness is about 500 nm to 50 ⁇ m corresponding to the film thickness of
  • the thickness of the oxide layer when the paste is applied is about 50 ⁇ m to 300 ⁇ m, which corresponds to the film thickness when applied.
  • a resin or the like which does not decompose during heating is used.
  • the difference between the glass transition temperatures of the amorphous resin and the oxide glass is preferably within about 100 ° C.
  • the difference between the melting point of the crystalline resin and the glass transition temperature of the oxide glass is preferably 100 ° C. or less. If the softening point of the glass is lower than that of a resin or the like and the temperature difference is large, it is possible to soften only the glass and form a laminate without degenerating the resin or the like.
  • the resin or the like may be decomposed during heating. Even in this case, if the softening point of the glass is sufficiently low, the resin or the like in the portion in contact with the glass melts at the time of softening the glass and adheres to the glass, whereby the adhesion can be enhanced. However, adjustment is necessary so as not to make the heating time too long.
  • the resin synthetic resins such as thermosetting resins and thermoplastic resins are mainly used.
  • gum the elastic material which has an organic molecule like a natural rubber or a synthetic rubber as a main component is used. In either case of resin and rubber, any resin may be used as long as it is difficult to be decomposed in a temperature range near the softening temperature of glass.
  • the oxide glass in the laminate at least containing the Ag 2 O and V 2 O 5 and TeO 2, the total content of Ag 2 O and V 2 O 5 and TeO 2 is 75 wt% or more It is good.
  • Ag 2 O and TeO 2 are components that contribute to lowering the softening point, and the softening point of the glass of the present invention roughly corresponds to the content of Ag 2 O and TeO 2 .
  • V 2 O 5 suppresses the precipitation of metal Ag from Ag 2 O in glass and contributes to the improvement of the thermal stability of the glass. With such a composition range, the softening point of the glass (the peak temperature of the second endothermic peak in the temperature raising process in DTA) can be lowered to 320 ° C. or lower, and sufficient thermal stability is ensured. be able to.
  • the oxide glass it is preferable to contain 10 to 60% by mass of Ag 2 O, 5 to 65% by mass of V 2 O 5 and 15 to 50% by mass of TeO 2 .
  • 10 to 60% by mass it indicates 10% by mass or more and 60% by mass or less. Since the deposition of the metal Ag from Ag 2 O is suppressed by the addition of V 2 O 5, with a softening point makes it possible to increase the Ag 2 O is more temperature reduction, chemical stability of the glass (e.g. , Moisture resistance) is improved. By setting it as such a composition range, moisture resistance better than the conventional low melting-point lead-free glass is securable.
  • the Ag 2 O content is more than 2.6 times the V 2 O 5 content, the softening point Ts does not become so low in temperature even if Ag 2 O is added, and the glass is easily crystallized. Therefore, the Ag 2 O content is preferably 2.6 times or less of the V 2 O 5 content.
  • the oxide glass contains 10 to 60% by mass of Ag 2 O, 5 to 65% by mass of V 2 O 5 and 15 to 50% by mass of TeO 2, and Ag 2 O and V 2 O
  • the total content rate of 5 and TeO 2 is 75% by mass or more, and the sum of the Ag 2 O content rate and the V 2 O 5 content rate is 40 to 80% by mass, the moisture resistance is particularly excellent.
  • the softening point of the glass in the composition range as described above can be made equal to or lower than the temperature at which the resin etc. decomposes, so the glass is softened and flowed by coating and heating on a substrate containing a high heat resistant resin etc. A dense and continuous film can be obtained, and a laminate having high gas barrier properties in which a resin and a glass are combined can be obtained.
  • the method for producing the oxide glass of the present invention is not particularly limited, but the raw material in which the respective oxides serving as the raw material are mixed and mixed is put into a platinum crucible and raised to 5-10 ° C./min with an electric furnace. It can be manufactured by heating to 900 to 950 ° C. at a heating rate and holding for several hours. It is desirable to stir in order to obtain uniform glass during holding. When taking out the crucible from the electric furnace, it is preferable to pour it onto a graphite mold or stainless steel plate which has been heated to about 150 ° C. in advance to prevent moisture adsorption on the oxide glass surface.
  • the resin or rubber in the present invention is not particularly limited, and may be crystalline or amorphous, and may be used in combination of several types instead of one type.
  • the heat resistant temperature of the resin or rubber is preferably as high as possible.
  • the laminate of the present invention can also be used in electric and electronic parts, organic EL elements, organic thin film solar cells, organic transistors and the like.
  • glasses having various compositions were produced, and the softening point and moisture resistance of the glasses were investigated.
  • Each starting material powder was mixed in the mass ratio shown in Table 1 and placed in a platinum crucible.
  • the ratio of Ag 2 O in the raw material using alumina crucible in the case of more than 40 wt%.
  • mixing in consideration of avoiding excessive moisture absorption to the raw material powder, mixing was performed in a crucible using a metal spoon.
  • the crucible containing the raw material mixed powder was placed in a glass melting furnace, and was heated and melted. The temperature was raised at a temperature rising rate of 10 ° C./min, and the molten glass was maintained at a set temperature (700 to 900 ° C.) for 1 hour while stirring. Thereafter, the crucible was taken out of the glass melting furnace, and the glass was cast into a graphite mold which had been preheated to 150 ° C. Next, the casted glass was transferred to a strain removing furnace which had been previously heated to a strain removing temperature, and after holding strain for 1 hour, the strain was removed and cooled to room temperature at a rate of 1 ° C./min. The glass cooled to room temperature was crushed to prepare a glass powder having the composition shown in the table.
  • the softening point Ts was measured by differential thermal analysis (DTA) for each of the glass powders obtained above.
  • the DTA measurement was carried out at a temperature rising rate of 5 ° C./min in the atmosphere with the mass of the reference sample ( ⁇ -alumina) and the measurement sample of 650 mg respectively, and the peak temperature of the second endothermic peak was determined as the softening point Ts 1).
  • the results are shown in Table 1.
  • the laminated body was produced in the following procedures using the glass obtained in Example 1. From the glass prepared in Example 1, SPL-15 having the lowest softening point is pulverized and pulverized to an average particle size of 0.5 ⁇ m or less, and then a resin binder and a solvent are mixed to form a slurry for spray spraying. Made. Nitrocellulose was used as the resin binder and butyl carbitol acetate was used as the solvent.
  • the process image which forms an oxide layer on a polyimide film is shown in FIG.
  • the slurry obtained above is spray-deposited on a polyimide film 1 with a thickness of 12 ⁇ m by spray 3, heated to 250 ° C. in an oven and held for 10 minutes, and then naturally cooled to form oxide glass on polyimide film 1.
  • Layer 2 was formed. The thickness of the oxide glass layer 2 was 1.2 ⁇ m.
  • an inorganic material deposition layer was formed on a PET film and a PET film by vacuum evaporation to form an SiOx film (x is 2 or less) by 50 nm deposition, and used as a gas permeability evaluation sample.
  • the oxygen permeability and the water vapor permeability of the obtained laminated film were evaluated.
  • the measurement results are shown in Table 2.
  • the oxygen permeability and the water vapor permeability of the laminate of the present invention were below the measurement limit of the device.
  • the gas barrier property is greatly improved by forming the SiOx vapor deposition film on the PET substrate, but it is measured that a trace amount of gas is transmitted. It showed from the result. This is because the thickness of the inorganic material layer such as SiOx is thin.
  • the laminate of the present invention is obtained by firing a thick film sprayed and the thickness of the oxide layer is as large as 1.2 ⁇ m, so that it was shown to exhibit excellent gas barrier properties.
  • FIGS. 3 (a) and 3 (b) are SEM images of the laminate of this example
  • FIG. 3 (c) is a film structure of a comparative example. While defects in the longitudinal direction of the oxide glass layer 2 are present in (c), such defects are not seen in this example. In (c), since the size of the defect with respect to the thickness of the film is about several tens to several hundreds of times, the gas barrier property is not perfect, and oxygen permeability of about 0.9 to 1.5 cc / m 2 / day is Have.
  • the oxide glass layer 2 contains V, Ag and Te having a low softening point, passes through the molten state and is dense, and therefore does not have a defect through which the gas passes.
  • the thickness of the oxide glass layer 2 of the laminate can be adjusted in any manner by the method of applying the slurry or paste, but the film thickness when spray-spraying the slurry is about 500 nm to 50 ⁇ m, and the paste is printed The film thickness is about 50 ⁇ m to 500 ⁇ m. Since the film thickness is overwhelmingly greater than that of the comparative example, and the film structure is compact, the gas barrier properties are remarkably good.
  • An organic EL device having a simple structure was produced using the laminate produced in Example 2. A part of the organic EL element used in this experiment is shown in FIG.
  • the metal cathode 5 / organic EL layer 6 (green) / ITO electrode layer 7 was laminated on the glass substrate 4.
  • the laminate 8 of the present invention cut into a size of 40 mm ⁇ 50 mm on an ITO electrode of an organic EL element (15 mm ⁇ 20 mm) in a glove box in an atmospheric pressure (0.1 MPa) nitrogen atmosphere with an adhesive
  • the organic EL element was sealed by sticking, and it was set as the EL element A.
  • organic EL elements sealed with the films of Comparative Examples 1 and 2 in Table 2 were referred to as EL elements B and C.
  • the organic EL devices were placed in humid air with a temperature of 50 ° C. and a relative humidity of 90%, connected to an AC power supply of 100 V and 400 Hz, and continuously lit to measure the luminance.
  • the result of measuring the time-dependent change of the luminance with the luminance immediately after the start of the experiment being 100% is shown in FIG. It was confirmed that the luminance reduction rate of the EL element A was 0 compared to the comparative EL elements B and C. That is, in order to improve the reliability of the organic EL element, it is understood that the laminate of the present example may be used as the film material for sealing.
  • FIG. 6 is a front view showing the resin window of this embodiment.
  • FIG. 7 is a cross-sectional view of the resin window taken along line AA 'of FIG.
  • the resin window of this example is composed of a polycarbonate substrate 9 and an oxide glass layer 10 provided on the outer surface.
  • the resin window according to the present example is manufactured in the following procedure. First, a polycarbonate resin window (100 mm ⁇ 100 mm ⁇ thickness 4 mm) is molded by injection molding. Next, as shown in FIG. 2, a slurry of oxide glass fine particles is spray-sprayed on a resin window and dried to form a fine particle layer of oxide glass. As the oxide glass, three kinds of SPL-12, SPL-15, and SPL-21 were used.
  • the fine particles of oxide glass are softened and allowed to flow to form one continuous oxide glass layer, but since the heat resistance temperature of polycarbonate is 180 ° C., the oxide glass fine particle layer and the resin window are electrically It can not heat at the same time in a furnace. In such a case, the oxide glass fine particle layer on the surface of the resin window is irradiated with a laser and heated to soften and flow the fine particles of the oxide glass without damaging the resin window, thereby continuously forming a single layer oxide glass Make a layer.
  • the oxide glass particle layer was irradiated with laser light at a power of 20 W and a scanning speed of 50 mm / s using the semiconductor laser 11 with a wavelength of 808 nm to form a continuous single oxide glass layer.
  • the thickness of each of the oxide glass films of SPL-12, SPL-15, and SPL-21 manufactured in this manner was 9 ⁇ m.
  • the process for producing the resin window as described above is shown in FIG.
  • the specific gravity of the produced resin window is almost equal to that of polycarbonate, and is 1.2 g / cm 3 .
  • the specific gravity of common window glass is 2.4 g / cm 3 , and the weight of the resin window is about half.
  • transmittance was measured using a UV-visible spectrophotometer (U-4100 manufactured by Hitachi, Ltd.).
  • the measurement wavelength range was 240 to 2600 nm, and the scan speed was 300 nm / min.
  • FIG. 9 shows the measurement results of transmittance.
  • the transmittance in the 240 to 400 nm region of any oxide glass layer is almost zero, and has a very good ultraviolet blocking function.
  • the action of the oxide glass layer 10 blocks ultraviolet rays having a wavelength of 240 to 400 nm, and the resin material is protected from the ultraviolet rays.
  • the wavelength range of 280 to 400 nm of the solar spectral band has a large effect on each substance, and when polycarbonate alone is irradiated with sunlight, the bonding main chain is gradually cut from the surface, and the powdering phenomenon (choking) continues. It happens and progresses to the deep part.
  • the dissociation sensitivity wavelength (nm) of the C—C bond of polycarbonate is said to be 280 to 310, and by providing an oxide glass layer for blocking ultraviolet light in this wavelength range, a polycarbonate resin window can be realized.
  • the window of a building was described in this example, it is applicable also to the resin windows of the side of a car, the rear window, and the resin windows in various car bodies other than a car.
  • FIG. 10 The structure of a solar cell module using the resin window of Example 4 as a substitute for the front glass is shown in FIG.
  • Irregularities can be provided on the side of the resin window 12 on which sunlight is incident, and there is an effect of preventing reflection.
  • There is a nanoimprinting method etc. as a method of providing unevenness.
  • the resin window 12 is manufactured by the completely same manufacturing method as the resin window manufactured in Example 4, the base material is polycarbonate, and an oxide glass layer (SPL-15) having a thickness of 9 ⁇ m is provided on the outer surface thereof.
  • SPL-15 oxide glass layer
  • Polycarbonate was used as the substrate, but other transparent substrates such as acrylic, polyester, fluorinated polyethylene and the like that do not interfere with the incidence of sunlight may be used. These are also referred to as lightweight cover glasses.
  • the solar battery cell 14 various solar cell elements, such as a single crystal silicon solar cell, a polycrystalline silicon solar cell, a thin film compound semiconductor solar cell, and an amorphous silicon solar cell, can be used.
  • One or more of the solar cells 14 are disposed in the solar cell module, and in the case where a plurality of the solar cells 14 are disposed, they are electrically connected by an interconnector through an aluminum electrode 15 using vanadium-based glass.
  • the back sheet 16 may be a metal layer and a plastic film layer in order to have weather resistance, high insulation and strength.
  • a large number of solar cells 14 were connected in series, installed between the resin window 12 and the back sheet 16 and attached by the EVA sheet 17.
  • the outer peripheral part was fixed by the aluminum frame 13, and the solar cell module was produced.
  • the specific gravity of the resin window is about 1.2 g / cm 3, which is about half the weight of general glass with a specific gravity of 2.4 g / cm 3 .
  • a weight reduction of 40% could be achieved by using the resin window with the oxide glass layer according to this example. Accordingly, the cost of the gantry can be reduced by 34%, and the cost of construction can be further reduced.

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  • General Chemical & Material Sciences (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
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  • Photovoltaic Devices (AREA)
PCT/JP2012/080120 2011-12-26 2012-11-21 積層体及びこれを用いた有機ｅｌ素子、窓、太陽電池モジュール Ceased WO2013099479A1 (ja)

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US14/369,056 US20150020879A1 (en) 2011-12-26 2012-11-21 Laminate and organic el element, window, and solar battery module using same
CN201280064588.6A CN104039547B (zh) 2011-12-26 2012-11-21 层叠体及使用其的有机el元件、窗、太阳能电池组件

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JP2011282621A JP5732381B2 (ja) 2011-12-26 2011-12-26 積層体及びこれを用いた有機ｅｌ素子、窓、太陽電池モジュール

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JP5667970B2 (ja) 2011-12-26 2015-02-12 株式会社日立製作所 複合材料
JP5712123B2 (ja) 2011-12-26 2015-05-07 株式会社日立製作所 複合材料
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