WO2006035698A1 - Concentrateur en feuille et feuille de cellule solaire utilisant ce concentrateur - Google Patents

Concentrateur en feuille et feuille de cellule solaire utilisant ce concentrateur Download PDF

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Publication number
WO2006035698A1
WO2006035698A1 PCT/JP2005/017608 JP2005017608W WO2006035698A1 WO 2006035698 A1 WO2006035698 A1 WO 2006035698A1 JP 2005017608 W JP2005017608 W JP 2005017608W WO 2006035698 A1 WO2006035698 A1 WO 2006035698A1
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WIPO (PCT)
Prior art keywords
layer
sheet
solar cell
light
light receiving
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Application number
PCT/JP2005/017608
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English (en)
Japanese (ja)
Inventor
Toshiya Nishibayashi
Original Assignee
Dueller Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Dueller Corporation filed Critical Dueller Corporation
Priority to JP2006537711A priority Critical patent/JP4155361B2/ja
Publication of WO2006035698A1 publication Critical patent/WO2006035698A1/fr

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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
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
    • 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
    • H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
    • 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

Definitions

  • the present invention relates to a condensing sheet for a solar cell and a solar cell sheet using the same.
  • the present invention since the present invention has a function of confining light, the multilayer plastic foam sheet that can be suitably used for condensing light rays such as sunlight, a manufacturing method thereof, a solar cell device using the multilayer sheet, and It relates to its usage.
  • the development of solar cell elements with high power generation efficiency includes the development of single crystal silicon type, compound (Group 3-5, Group 2-6, etc.) semiconductor type solar cells, etc. As a cost reduction method, development of amorphous silicon solar cells is underway.
  • Patent Documents 4, 5, 6, and 7 disclose examples of concentrators that collect light using reflection and total reflection by a prism having a triangular cross section.
  • Patent Documents 4, 5, 6, and 7 disclose examples of concentrators that collect light using reflection and total reflection by a prism having a triangular cross section.
  • there are restrictions on the angle of light rays that enter the prism and there are also problems with the magnification and manufacturing cost.
  • Patent Document 8 discloses a sheet in which small prisms, semi-cylindrical or hemispherical protrusions are arranged on the surface of a sheet.
  • Patent Document 9 discloses a prism-like structure between the solar cell element and the surface sheet, and has a function of confining the reflected light of the solar cell element force in this portion.
  • these condensing methods have low condensing magnification, and it is not expected to reduce the area of the solar cell element, which is a merit of the concentrating type.
  • Patent Documents 10 and 11 disclose the idea of reliably condensing light by making the prism shape a wedge shape. However, it is considered difficult to realize due to difficulties in manufacturing methods and installation methods.
  • Patent Document 10 a method of dispersing a resin having a different refractive index in a transparent resin has also been reported! (Patent Document 10), but it is expected that the concentrating efficiency of the light collecting efficiency is difficult.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2002-289897
  • Patent Document 2 JP 2002-289898 A
  • Patent Document 3 Japanese Unexamined Patent Application Publication No. 2004-214470
  • Patent Document 4 JP 54-018762 A
  • Patent Document 5 Japanese Patent Laid-Open No. 06-275859
  • Patent Document 6 Japanese Patent Application Laid-Open No. 07-122771
  • Patent Document 7 JP 2004-047752 A
  • Patent Document 8 JP 2000-031515 A
  • Patent Document 9 JP 2000-323734 A
  • Patent Document 10 Japanese Patent Laid-Open No. 10-221528
  • Patent Document 11 Japanese Patent Laid-Open No. 10-335689 Disclosure of the invention
  • the above-described conventional concentrating solar cells have problems such as the limitation of the condensing magnification, difficulty in following the sun beam, and restrictions on the installation space. There is a problem to develop a concentrating solar cell sheet that has good productivity and is suitable as a solar cell.
  • the sheet-like light collector for solar cell according to the present invention is an intermediate layer of a light guide sheet formed by sandwiching a light guide layer made of a high refractive index material between a light receiving layer made of a low refractive index material force and an intermediate layer. It is characterized by laminating an irregular reflection layer on the side and providing a daylighting part in part.
  • the irregular reflection layer 14 is preferably made of a resin (transparent or translucent) containing a large number of bubbles.
  • the irregular reflection layer 14 is preferably formed by gas foam extrusion.
  • the light receiving layer 11, the light guide layer 12, the intermediate layer 13 and the irregular reflection layer 14 are preferably made of a thermoplastic resin and integrally formed by coextrusion.
  • the sheet-shaped concentrator 10 according to the present invention preferably further has the following configuration.
  • the surface of the light receiving layer 11 has irregularities having a light confinement effect.
  • the area of the light receiving layer 11 is preferably at least twice the area of the daylighting portion 15. More preferably, it is 5 times or more. When it is less than twice, the cost advantage of the sheet-shaped concentrator cannot be obtained, so the value of using the sheet-shaped concentrator 10 is lost.
  • an antifouling layer is formed on the surface of the light receiving layer 11.
  • the antifouling layer has a photoactive catalyst.
  • this sheet-shaped concentrator and a solar cell disposed so that the light receiving surface faces the daylighting portion, it can be used as a solar cell sheet.
  • FIG. 1 is a schematic explanatory view showing a solar cell sheet using a sheet-like concentrator in one embodiment of the present invention.
  • FIG. 2 is a schematic explanatory diagram showing light reflection at a bubble interface.
  • FIG. 3 is a schematic explanatory diagram of an experiment of Example 1.
  • FIG. 4 is a schematic explanatory diagram of the experiment of Example 2 (without black drawing paper 40).
  • FIG. 5 is a schematic explanatory diagram of the experiment of Example 2 (with black drawing paper 40).
  • the light that has entered the interface at a shallow angle of a predetermined critical angle or more is: Cannot go outside the light guide sheet.
  • the sunlight that first enters the light guide sheet also enters at a deep angle below this critical angle, a large amount of sunlight escapes through the light guide sheet.
  • the present inventor has come up with a method of providing an irregular reflection layer on the surface of the light guide sheet opposite to the side on which sunlight is incident.
  • This irregular reflection layer changes the reflection angle of the light that has passed through the light guide sheet, thereby increasing the probability that the reflected light re-enters the light guide sheet at a shallow angle that is equal to or greater than the critical angle.
  • all the light that is about to go out of the light guide sheet is returned to the light guide sheet, and most of the force is confined in the light guide sheet. That is, the light collection efficiency can be greatly increased.
  • the irregular reflection layer may be a simple total reflection surface such as a mirror surface or a metal surface with a fine force and a scratch (scratched line), but a transparent resin layer containing many bubbles. Is also effective. As shown in Fig. 2, by utilizing the fact that the light reflected by the spherical interface of the bubble 20 is reflected at an angle different from the approach angle, it is possible to re-enter the light guide layer at a shallow angle, For this reason, it discovered that the condensing of light and accumulation
  • the laminated sheet of the present invention As a coextruded sheet, loss of light absorption due to an adhesive or the like on the laminated surface does not occur. Light scattered outside the system is allowed because it was reflected at an angle below the critical angle by scattering reflection at the bubble interface of the diffuse reflection layer.
  • the foamed sheet layer according to the present invention desirably has 80% or more of the bubbles contained in the sheet having a bubble diameter in the range of 0.1 to 50 m. As a result, good reflection characteristics can be obtained. Furthermore, it is preferable that 80% or more of the bubbles contained in the sheet have a bubble diameter in the range of 0.4 to 20 m. If the bubble diameter is too large, an optical interference effect or the like is caused, and sufficient reflection cannot be obtained. Conversely, if the bubble diameter is too large, the area that is reflected in the direction perpendicular to the sheet increases, which is not preferable.
  • the foamed sheet layer according to the present invention desirably has a porosity in the range of 20 to 80%.
  • the porosity corresponds to the density of bubbles contained in the foamed sheet, and can be determined from the force sheet representing the gas phase occupation ratio of the sheet, the density of the resin used, and the sheet volume.
  • the porosity of the sheet is further preferably 50 to 70%. This is because the theoretical maximum porosity is about 70% in order to maintain the spherical shape of the bubble, and if it exceeds this, the bubble collapses and good reflection characteristics can be obtained. It is not possible.
  • the light guide layer based on the high refractive index resin in the present invention and the light receiving layer and intermediate layer based on the low refractive index resin laminated on both sides thereof are the light guide layer, the light receiving layer, and the light receiving layer. Since it is possible to prevent light that has entered at the interface of the intermediate layer at an angle greater than the critical angle from leaking out from the high refractive index layer, the light can be confined in the light guide layer.
  • the light guide layer, the light receiving layer, and the intermediate layer are more preferable because the critical angle can be reduced as the difference in refractive index increases.
  • the main thermoplastic resin constituting the diffuse reflection layer having foaming is preferably a resin having a high melt tension in order to promote fine foaming. Therefore, the melt flow rate (measured according to ASTM D1238-98) showing the fluidity in the molten state is preferably 0.5 to 44 g / 10 min. A 10 minute thermoplastic resin is more preferred.
  • the fluidity of thermoplastic resin can be determined according to the measurement conditions (temperature, load, etc.) for various polymers described in ASTM D1238-98.
  • thermoplastic resin polycarbonate, styrene-based resin, polyetherol, polyurethane, polyphenylene sulfide, polyesteramide, polyetherester, polychlorinated butyl, modified polyphenylene ether, polyarylate, polysulfone, polyimide, polyetherimide, polyamideimide, and these
  • the force which can mention the copolymer which makes this a main component, these mixtures, etc. is not limited to these.
  • an acrylic resin or methacrylic resin include, for example, acrylic acid ester or methacrylic acid ester homopolymer or acrylic acid ester or metatalic acid ester of 50% by weight or more. And copolymers with one or more vinyl monomers In particular, a copolymer of 50% by weight or more of a methacrylic acid ester and one or more other types of butyl monomers is preferred. Preferred is a copolymer comprising 50% by weight or less of alkyl ester and 49% by weight or less of at least one vinyl monomer copolymerizable with at least one of methacrylic acid alkyl ester and allylic acid alkyl ester. The amount of the alkyl acrylate ester contained in the copolymer is preferably 0.1% by weight to 40% by weight, more preferably 1% by weight to 15% by weight. The above acrylic resin or methacrylic resin may be used alone or in combination.
  • acrylate esters examples include methyl acrylate, ethyl acrylate, butyl acrylate, cyclohexyl acrylate, acrylic acid phenyl, benzyl acrylate, and 2-ethylhexyl acrylate. And 2-hydroxyethyl acrylate and the like, and methyl acrylate and ethyl acrylate are particularly preferable.
  • ester of methacrylate examples include methyl methacrylate, ethyl acetate, butyl methacrylate, cyclohexyl methacrylate, phenyl methacrylate, benzyl methacrylate, 2-ethylhexyl methacrylate, and methacrylic acid 2 —Hydroxyethyl and the like can be mentioned, and in particular, methyl methacrylate and ethyl acetate are preferable.
  • Examples of other copolymerizable butyl monomers include acrylic acid and methacrylic acid esters such as unsaturated acids such as acrylic acid and methacrylic acid, styrene, ⁇ -methylstyrene, talari-tolyl, Examples thereof include meta-tallow-tolyl, maleic anhydride, phenol maleimide, cyclohexyl maleimide and the like.
  • the weight average molecular weight (Mw) of the acrylic resin or methacrylic resin is preferably 40,000 to 400,000, more preferably 60,000 to 300,000. If the Mw is too small, the resulting foamed sheet layer may have insufficient mechanical strength. If the Mw is too large, the melt viscosity may increase and the extrusion performance may decrease.
  • the above-mentioned acrylic resin or methacrylic resin may contain a rubbery polymer.
  • a rubber-like polymer By blending a rubber-like polymer with acrylic resin or methacrylic resin, the viscosity and toughness of resin can be improved, and a foam sheet with good impact resistance can be obtained.
  • the thermoplastic resin in the present invention includes a range that does not impair the optical characteristics of the sheet-like light collector.
  • a crystallization nucleating agent preferably in the range of 3% by weight or less
  • a crystallization accelerator preferably in the range of 3% by weight or less
  • a cell nucleating agent preferably in the range of 3% by weight or less
  • an antioxidant preferably in the range of 3% by weight or less
  • a processing aid preferably in the range of 3% by weight or less
  • a plasticizer a processing aid
  • an antistatic agent Various additives such as impact aids, foaming agents, fillers, matting agents, mold release agents, flame retardants, UV absorbers, UV inhibitors, pigments, dyes, lubricants, and optical brighteners are formulated.
  • inorganic fine particles that function as a bubbling nucleating agent are preferably those capable of forming pores with themselves as nuclei, such as calcium carbonate, magnesium carbonate, zinc carbonate, titanium oxide (anatase type, rutile). Type), zinc oxide, barium sulfate, zinc sulfide, basic tin carbonate, titanium mica, antimony oxide, magnesium oxide, calcium phosphate, silica, alumina, my strength, talc, kaolin, and the like.
  • it is particularly preferable to use calcium carbonate and barium sulfate which have low absorption in the visible light range of 400 to 700 nm. If there is absorption in the visible light region, there may be a problem that the luminance decreases.
  • Examples of the gas dissolved in the thermoplastic resin in the extruder in order to form bubbles in the sheet include carbon dioxide, nitrogen, butane, helium, and argon. Of these, carbon dioxide and nitrogen, which have low gas permeability and are inexpensive and can be handled safely, may be used alone or in combination.
  • An antifouling layer can be provided on the surface of the light receiving layer of the present invention.
  • Antifouling layer is Rf- (OC F)-
  • the run coupling agent power be obtained.
  • the antifouling layer is formed of such a material, dirt on the outermost surface of the sheet becomes difficult to adhere, and even if it adheres, it can be easily washed away.
  • a photoactive substance having a photocatalytic action can be used on the outermost surface of the light collecting sheet of the present invention.
  • the dust attached to the surface of the antifouling layer is decomposed by the action of light to destroy the adhesiveness and washed with rain and moisture! It makes it easy to keep the surface clean by pouring.
  • Photoactive materials include TiO, ZnO, SrTiO, CdS, CaP, InP
  • a composition in which a metal such as e and Z or a metal oxide thereof is mixed can be used.
  • an uneven pattern may be transferred to the surface of the light receiving layer.
  • the pattern is transferred to a thermoplastic resin sheet on a casting roll having a fine pattern formed on the surface, or a foam sheet sheeted with a plain casting roll is used. And after winding up on a roll, it can carry out by the method of transferring a pattern to a sheet
  • the cross-section is a triangle, trapezoid, semicircular shape with an inclined surface such as a triangle or trapezoid, or an array of ridges, or pyramids.
  • convex or concave shapes such as a trapezoid with a truncated pyramid shape, a hemispherical shape such as a dome shape, or a hemispherical shape with a curvature.
  • the angle (vertical angle) between the opposing slopes in the array of recesses is particularly preferable to use.
  • the thickness of the entire sheet-like light collector according to the present invention is preferably 100 to 1000 m, more preferably 150 to 500 m. When the thickness is too small, it becomes difficult to ensure the flatness of the sheet, and the light collection efficiency is lowered when used as a sheet-like light collector. On the other hand, if the thickness is too large, lamination with a steel plate or the like becomes difficult.
  • the sheet-shaped concentrator according to the present invention may be formed by coextrusion, extrusion lamination, thermal lamination, coating, vapor deposition, or the like.
  • a laminated sheet by coextrusion is preferable.
  • Such a laminated sheet is formed by, for example, a polymer having a main extruder for a foam layer and a sub-extrusion machine for a non-foam layer in a feed block portion installed in a die hold portion or before entering the die. It can be formed by merging. Since this coextruded laminated sheet does not require an adhesive layer, it is advantageous for reflection characteristics and at the same time has good productivity.
  • the boundary between the intermediate layer and the irregular reflection layer is less affected, for example, there is no boundary between the foamed portion of the irregular reflection layer and the non-foamed portion of the intermediate layer. This can be advantageous particularly when used as a sheet-like concentrator.
  • the solar cell or solar cell element in the present invention means a device that generates power using the photovoltaic effect of a semiconductor, and is a silicon (single crystal, polycrystal, amorphous) solar cell.
  • Compound semiconductors Groups 3-5, 2-6, etc.
  • solar cells wet solar cells, dye-sensitized solar cells, organic semiconductor solar cells, and the like.
  • a sheet-shaped concentrator and a solar cell sheet using the same may be laminated on a steel plate.
  • the sheet-shaped concentrator laminated on this steel plate and the solar cell using the same can be used for building materials such as roofing materials and constituent materials for transportation equipment such as automobiles, buses and ships.
  • the sheet forming machine usable in the present invention is usually an extruder for melting the resin, a flat die for forming a sheet, a cast roll for cooling the sheet, a sheet take-up device, a sheet It consists of a take-off device.
  • Flat dies include multi-hold types that are stacked inside the die, which is preferred by T dies, and those that have a feed block device that is stacked just before the die.
  • Cast rolls usually have a temperature control function, and the temperature control method may be a combination of circulating cooling water, hot water, or oil, or an induction heating method.
  • the sheet take-up device may have a roll temperature control function following the cast roll, and is equipped with a surface treatment device such as a thickness measurement device, defect detection device, antistatic device, corona treatment and frame treatment. It is also possible.
  • the wrinkle removal device can also include a turret mechanism, a touch roll mechanism, a wrinkle changing mechanism, a tension control device, etc.
  • the casting apparatus usable in the present invention may include a vacuum chamber apparatus having a cross section along the curvature of the roll above the roll in the take-up apparatus following the cast roll or the cast roll.
  • This vacuum chamber apparatus is a box-shaped apparatus having a width matched to the sheet, and can be depressurized by exhausting air inside the chamber by a vacuum pump provided outside.
  • the chamber box has a sealing mechanism for maintaining a vacuum, and is composed of a plurality of rooms as required.
  • Such a vacuum chamber apparatus is preferably capable of reducing the pressure inside the chamber to 30 kPa or less in order to obtain a desired foamed sheet.
  • the seal mechanism attached to the chamber apparatus usable in the present invention includes an inlet seal on the inlet side, an outlet seal on the outlet side, and side seals arranged on both sides with respect to the flow direction of the sheet.
  • an inlet seal and outlet seal a labyrinth seal type, a contact roller type seal type, or the like can be adopted.
  • a side seal labyrinth seal type, contact guide type, etc. can be adopted. it can.
  • thermoplastic resin chip as a raw material that has been heated and Z or dried is subjected to foaming and extruding main extruder (A) for foaming and extruding, and foaming, respectively.
  • main extruder (A) Supplied to the sub-extruder (B) used for the light-receiving layer and intermediate layer not to be used, and further to the sub-extruder (C) for the light guide layer.
  • the main extruder (A) is supplied with gas, preferably under supercritical conditions, by a gas supply device placed outside the apparatus. Inside the main extruder (A), the molten thermoplastic resin and gas are sufficiently mixed, and the gas is dissolved in the thermoplastic resin and extruded.
  • the sheet discharged from the T-die is landed on a casting roll and cooled. At this time, the sheet is usually a transparent uniform sheet. After cooling to a predetermined temperature on the casting roll, the sheet is introduced into the take-up roll following the casting roll. Next, the sheet is exposed to a vacuum state by a vacuum chamber provided on the take-up roll. Then, the sheet generates fine foam and changes to a pure white sheet. Then, this sheet is wound up into a roll shape by a winder.
  • the laminated sheet according to the present invention can be produced by a method including a step of foaming by extruding a thermoplastic resin in which a gas is dissolved.
  • a non-foamed or foamed sheet that is foamed without using the vacuum chamber may be passed through the vacuum chamber.
  • the present invention provides a step of sheeting a molten polymer of thermoplastic resin in which a gas is dissolved in an unfoamed state, by exposing the sheet to a vacuum under a temperature condition of 50 to 200 ° C, thereby causing bubbles.
  • a method for producing a foam sheet Such manufacturing method The method is suitable for the production of the foamed sheet or laminated sheet according to the present invention, and the above steps are preferably continuous.
  • the temperature condition is more preferably 70 to 120 ° C.
  • sheeting in a non-foamed state means that the gas is dissolved in the molten resin polymer, but the sheet is formed in a state without foaming when discharged from the die portion. This can be done by reducing the amount of gas to be dissolved and controlling the Z or discharge conditions. Since the non-foamed sheet has a gas dissolved in the polymer, it can be easily foamed by applying a stimulus such as reduced pressure to the sheet.
  • the bubble generation state can be easily controlled by adjusting the conditions such as the temperature and reduced pressure of the sheet, so that the bubble size and the number of bubbles can be easily optimized. Liked in terms of.
  • the foamed sheet of the present invention can be obtained by using a sheeting device and a vacuum chamber device following gas supply extrusion. Therefore, it is possible to produce a sheet excellent in reflection characteristics, workability, and surface smoothness in-line with high productivity.
  • the laminated sheet according to the present invention can be suitably used as a sheet-shaped concentrator and a solar cell sheet using the same.
  • Optical acrylic resin (Sumitomo Chemical Co., Ltd. Sumipex MGSS) heated in advance at 120 ° C for 4 hours is used as a raw material, and this is the first stage with 35mm and L / D of 34.
  • Single-screw extruder, 50mm for the second stage, L / D 28 is supplied to the tandem extruder of the single-screw extruder, and supercritical conditions from the high-pressure gas supply device installed outside the extruder
  • the carbon dioxide gas was supplied to the nozzle provided in the cylinder part of the melt-compression part of the first stage extruder at 38 ° C and 15 MPa, which was dissolved and mixed in the resin.
  • the carbon dioxide gas was supplied at a rate of 0.03 kg / h with respect to the discharge rate of the extruder of 14.3 kg / h.
  • the extrusion temperature at this time was 240 ° C for the first stage and 200 ° C for the second stage.
  • transparent sheet B as intermediate layer 13 Prepare 80mm width x 120mm length cut white sheet A as diffuse reflection layer 14 cut to 80mm width x 120mm length.
  • the four sheets are removed in the order of the light receiving layer 11, the light guide layer 12, the intermediate layer 13, and the irregular reflection layer 14 while moistening them with a small amount of water to eliminate the air between them.
  • the sheet-shaped concentrator 10 is produced by superimposing as described above. Cover both ends with aluminum foil 33, and fix with a clip. Due to the difference in length between the light receiving layer 11 and the light guide layer 12, a portion of the light guide layer 12 is covered with the light receiving layer 11. This portion becomes a daylighting part 15 for taking out light from the light guide layer 12.
  • the sheet-shaped concentrator 10 thus manufactured has the light receiving layer 11 on the upper side, a part including the daylighting part 15 projects outside the dark room 34, and the remaining part is in the dark room 34. Arrange them as follows. Illuminate the dark room 34 with Rogen Light 35. At this time, a solar cell element (NIPPON TETECH Solar Panel SPM01 Single Crystal Silicon Type 33mm X 62mm) 32 is placed in the dark room 34 at the same height as the sheet.
  • a solar cell element 31 of the same type as that in the dark room 34 is arranged so that its light receiving surface faces the daylighting unit 15.
  • the halogen lamp 35 is turned on, and the short-circuit current and the open-circuit voltage of the solar cell element 32 in the dark room 34 and the solar cell element 31 outside the dark room 34 are displayed. To calculate the power.
  • Transparent layer B cut to 80mm width x 120mm length as light receiving layer 11 ', transparent sheet C cut to 80mm width x 120mm length as light guide layer 12', transparent layer 13 'as transparent layer 13' Prepare light sheet B cut to 80mm width x 80mm length, and white sheet A cut to 80mm width x 80mm length as diffuse reflection layer 14 '.
  • the four sheets are respectively wetted with a small amount of water in the order of the light receiving layer 11 ', the light guiding layer 12', the intermediate layer 13 ', and the reflection layer 14'.
  • the collector 10 ' is made by overlapping so as to exclude the air between the two. Cover both ends with aluminum foil 33, and fix with a clip. Due to the difference in length between the light guide layer 12 ′ and the intermediate layer 13 ′, a part of the light guide layer 12 ′ is not covered with the intermediate layer 13 ′. This part becomes the daylighting part 15 ′.
  • a solar cell element 31 of the same type as that used in Example 1 is arranged so that its light receiving surface faces the daylighting portion 15 ′. Place the sheet concentrator 10 'so that the light-receiving layer 11' is on top, measure the short-circuit current and open-circuit voltage of the solar cell element, and calculate the power.
  • the sheet-shaped concentrator of the present invention and the solar cell sheet using the same are because of its light condensing property, caloric property, low cost, etc. It can be applied to solar cell building materials, solar cell transport equipment, etc., but the scope of application is not limited to these! /.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Optical Elements Other Than Lenses (AREA)

Abstract

Une cellule solaire de concentration conventionnelle rencontre des problèmes d’agrandissement de concentration limité, de difficulté de suivi de rayon du soleil, d’espace d’installation restreint et autres. L'invention porte sur une feuille de cellule solaire de concentration convenant à la cellule solaire et présentant une bonne productivité en résolvant les problèmes. Une couche de réflexion diffuse (14) est formée sur la couche intermédiaire (13) d’une feuille conductrice de lumière formée en prenant en sandwich une couche conductrice de lumière (12) composée d’une substance à fort indice de réfraction entre une couche de réception de lumière (11) constituée d’une substance à faible indice de réfraction et la couche intermédiaire (13), et une pièce d’éclairage (15) est obtenue en retirant partiellement la couche de réception de lumière (11) ou la couche intermédiaire (13). La couche de réflexion diffuse (14) est formée de préférence de résine transparente englobant de multiples bulles. La couche de réflexion diffuse (14) est formée de préférence par extrusion par soufflage de gaz. La couche de réception de lumière (11), la couche conductrice de lumière (12), la couche intermédiaire (13) et la couche de réflexion diffuse (14) sont composées de préférence de résine thermoplastique et moulées intégralement par co-extrusion.
PCT/JP2005/017608 2004-09-27 2005-09-26 Concentrateur en feuille et feuille de cellule solaire utilisant ce concentrateur WO2006035698A1 (fr)

Priority Applications (1)

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JP2006537711A JP4155361B2 (ja) 2004-09-27 2005-09-26 シート状集光器及びこれを用いた太陽電池シート

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Application Number Priority Date Filing Date Title
JP2004-279889 2004-09-27
JP2004279889 2004-09-27

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JP2009034904A (ja) * 2007-08-01 2009-02-19 Japan Gore Tex Inc 微細凹凸表面を有する表面加工基板の製造方法
WO2010012474A2 (fr) * 2008-07-30 2010-02-04 Concentrix Solar Gmbh Dispositif photovoltaïque de conversion directe d'énergie solaire en énergie électrique
WO2010027944A2 (fr) * 2008-09-02 2010-03-11 Qualcomm Mems Technologies, Inc. Dispositif de collecte de lumière à caractéristiques de déviation de lumière prismatique
US20100116319A1 (en) * 2008-11-12 2010-05-13 Abengoa Solar New Technologies, S.A. Light collection and concentration system
JP2010525582A (ja) * 2007-05-01 2010-07-22 モーガン ソーラー インコーポレーテッド 導光ソーラーパネルおよびその製造方法
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JP2010219205A (ja) * 2009-03-16 2010-09-30 Furukawa Electric Co Ltd:The 太陽電池ユニット及び太陽電池ユニットの製造方法
WO2010137695A1 (fr) * 2009-05-29 2010-12-02 株式会社クラレ Feuille à lentille de fresnel pour capter la lumière solaire et son procédé de conception
JP2011020360A (ja) * 2009-07-16 2011-02-03 Konica Minolta Holdings Inc 微細な凹凸パターンを有するフィルム構造体の形成方法、微細な凹凸パターンを有するフィルム構造体、太陽エネルギー収集用プリズムシート及び立体視ディスプレイ用光学フィルム
JP2011029273A (ja) * 2009-07-22 2011-02-10 Mitsubishi Electric Corp 太陽電池モジュール
US8169688B2 (en) 2004-09-27 2012-05-01 Qualcomm Mems Technologies, Inc. System and method of reducing color shift in a display
US8358266B2 (en) 2008-09-02 2013-01-22 Qualcomm Mems Technologies, Inc. Light turning device with prismatic light turning features
CN102148277B (zh) * 2010-02-05 2013-03-13 胜华科技股份有限公司 太阳能控光模块
JP2014029450A (ja) * 2011-09-30 2014-02-13 Daikin Ind Ltd 集光フィルム、太陽電池モジュール、及び、転写モールド
US8693084B2 (en) 2008-03-07 2014-04-08 Qualcomm Mems Technologies, Inc. Interferometric modulator in transmission mode
US8736939B2 (en) 2011-11-04 2014-05-27 Qualcomm Mems Technologies, Inc. Matching layer thin-films for an electromechanical systems reflective display device
US8736949B2 (en) 2007-07-31 2014-05-27 Qualcomm Mems Technologies, Inc. Devices and methods for enhancing color shift of interferometric modulators
US8797628B2 (en) 2007-10-19 2014-08-05 Qualcomm Memstechnologies, Inc. Display with integrated photovoltaic device
US8941631B2 (en) 2007-11-16 2015-01-27 Qualcomm Mems Technologies, Inc. Simultaneous light collection and illumination on an active display
US8963159B2 (en) 2011-04-04 2015-02-24 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
US8964280B2 (en) 2006-06-30 2015-02-24 Qualcomm Mems Technologies, Inc. Method of manufacturing MEMS devices providing air gap control
US8971675B2 (en) 2006-01-13 2015-03-03 Qualcomm Mems Technologies, Inc. Interconnect structure for MEMS device
US8970939B2 (en) 2004-09-27 2015-03-03 Qualcomm Mems Technologies, Inc. Method and device for multistate interferometric light modulation
US8979349B2 (en) 2009-05-29 2015-03-17 Qualcomm Mems Technologies, Inc. Illumination devices and methods of fabrication thereof
US9001412B2 (en) 2004-09-27 2015-04-07 Qualcomm Mems Technologies, Inc. Electromechanical device with optical function separated from mechanical and electrical function
US9057872B2 (en) 2010-08-31 2015-06-16 Qualcomm Mems Technologies, Inc. Dielectric enhanced mirror for IMOD display
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US9134527B2 (en) 2011-04-04 2015-09-15 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
WO2015185855A1 (fr) * 2014-06-05 2015-12-10 Electricite De France Dispositif photovoltaïque et procédé de fabrication associé
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US8169688B2 (en) 2004-09-27 2012-05-01 Qualcomm Mems Technologies, Inc. System and method of reducing color shift in a display
US9001412B2 (en) 2004-09-27 2015-04-07 Qualcomm Mems Technologies, Inc. Electromechanical device with optical function separated from mechanical and electrical function
US8970939B2 (en) 2004-09-27 2015-03-03 Qualcomm Mems Technologies, Inc. Method and device for multistate interferometric light modulation
US8971675B2 (en) 2006-01-13 2015-03-03 Qualcomm Mems Technologies, Inc. Interconnect structure for MEMS device
US8964280B2 (en) 2006-06-30 2015-02-24 Qualcomm Mems Technologies, Inc. Method of manufacturing MEMS devices providing air gap control
JP2010525582A (ja) * 2007-05-01 2010-07-22 モーガン ソーラー インコーポレーテッド 導光ソーラーパネルおよびその製造方法
US8736949B2 (en) 2007-07-31 2014-05-27 Qualcomm Mems Technologies, Inc. Devices and methods for enhancing color shift of interferometric modulators
JP2009034904A (ja) * 2007-08-01 2009-02-19 Japan Gore Tex Inc 微細凹凸表面を有する表面加工基板の製造方法
US8797628B2 (en) 2007-10-19 2014-08-05 Qualcomm Memstechnologies, Inc. Display with integrated photovoltaic device
US8941631B2 (en) 2007-11-16 2015-01-27 Qualcomm Mems Technologies, Inc. Simultaneous light collection and illumination on an active display
US8693084B2 (en) 2008-03-07 2014-04-08 Qualcomm Mems Technologies, Inc. Interferometric modulator in transmission mode
WO2010012474A3 (fr) * 2008-07-30 2010-09-02 Concentrix Solar Gmbh Dispositif photovoltaïque de conversion directe d'énergie solaire en énergie électrique
WO2010012474A2 (fr) * 2008-07-30 2010-02-04 Concentrix Solar Gmbh Dispositif photovoltaïque de conversion directe d'énergie solaire en énergie électrique
DE102008035575B4 (de) * 2008-07-30 2016-08-11 Soitec Solar Gmbh Photovoltaik-Vorrichtung zur direkten Umwandlung von Sonnenenergie in elektrische Energie enthaltend eine zweistufige aus mehreren Elementen bestehende Konzentratoroptik
WO2010027944A2 (fr) * 2008-09-02 2010-03-11 Qualcomm Mems Technologies, Inc. Dispositif de collecte de lumière à caractéristiques de déviation de lumière prismatique
WO2010027944A3 (fr) * 2008-09-02 2010-12-16 Qualcomm Mems Technologies, Inc. Dispositif de collecte de lumière à caractéristiques de déviation de lumière prismatique
US8358266B2 (en) 2008-09-02 2013-01-22 Qualcomm Mems Technologies, Inc. Light turning device with prismatic light turning features
US8320045B2 (en) * 2008-11-12 2012-11-27 Abengoa Solar New Technologies, S.A. Light collection and concentration system
US20100116319A1 (en) * 2008-11-12 2010-05-13 Abengoa Solar New Technologies, S.A. Light collection and concentration system
JP2010212280A (ja) * 2009-03-06 2010-09-24 Sumitomo Electric Ind Ltd 太陽電池の導光構造、太陽電池ユニット及び太陽電池モジュール
JP2010219205A (ja) * 2009-03-16 2010-09-30 Furukawa Electric Co Ltd:The 太陽電池ユニット及び太陽電池ユニットの製造方法
US9158042B2 (en) 2009-05-29 2015-10-13 Kuraray Co., Ltd. Fresnel lens sheet for solar concentration and design method therefor
KR101330013B1 (ko) 2009-05-29 2013-11-18 가부시키가이샤 구라레 태양광 집광용 광학 시트 및 그 설계 방법
US9121979B2 (en) 2009-05-29 2015-09-01 Qualcomm Mems Technologies, Inc. Illumination devices and methods of fabrication thereof
JP5685186B2 (ja) * 2009-05-29 2015-03-18 株式会社クラレ 太陽光集光用光学シートの設計方法
JPWO2010137695A1 (ja) * 2009-05-29 2012-11-15 株式会社クラレ 太陽光集光用フレネルレンズシートおよびその設計方法
WO2010137695A1 (fr) * 2009-05-29 2010-12-02 株式会社クラレ Feuille à lentille de fresnel pour capter la lumière solaire et son procédé de conception
US8979349B2 (en) 2009-05-29 2015-03-17 Qualcomm Mems Technologies, Inc. Illumination devices and methods of fabrication thereof
JP2011020360A (ja) * 2009-07-16 2011-02-03 Konica Minolta Holdings Inc 微細な凹凸パターンを有するフィルム構造体の形成方法、微細な凹凸パターンを有するフィルム構造体、太陽エネルギー収集用プリズムシート及び立体視ディスプレイ用光学フィルム
JP2011029273A (ja) * 2009-07-22 2011-02-10 Mitsubishi Electric Corp 太陽電池モジュール
CN102148277B (zh) * 2010-02-05 2013-03-13 胜华科技股份有限公司 太阳能控光模块
US9057872B2 (en) 2010-08-31 2015-06-16 Qualcomm Mems Technologies, Inc. Dielectric enhanced mirror for IMOD display
US9134527B2 (en) 2011-04-04 2015-09-15 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
US8963159B2 (en) 2011-04-04 2015-02-24 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
JP2014029450A (ja) * 2011-09-30 2014-02-13 Daikin Ind Ltd 集光フィルム、太陽電池モジュール、及び、転写モールド
US10454411B2 (en) 2011-09-30 2019-10-22 Daikin Industries, Ltd. Light-condensing film, solar cell module, and transfer mold
US8736939B2 (en) 2011-11-04 2014-05-27 Qualcomm Mems Technologies, Inc. Matching layer thin-films for an electromechanical systems reflective display device
US9081188B2 (en) 2011-11-04 2015-07-14 Qualcomm Mems Technologies, Inc. Matching layer thin-films for an electromechanical systems reflective display device
JP2015149388A (ja) * 2014-02-06 2015-08-20 株式会社カネカ 太陽電池モジュールおよびその製造方法
WO2015185855A1 (fr) * 2014-06-05 2015-12-10 Electricite De France Dispositif photovoltaïque et procédé de fabrication associé
FR3022073A1 (fr) * 2014-06-05 2015-12-11 Electricite De France Dispositif photovoltaique a concentrateur fluorescent et procede de fabrication associe
CN106463560A (zh) * 2014-06-05 2017-02-22 法国电力公司 光伏器件及相关制造方法
CN106463560B (zh) * 2014-06-05 2019-10-18 法国电力公司 光伏器件及相关制造方法
US10770611B2 (en) 2014-06-05 2020-09-08 Electricite De France Photovoltaic device and associated fabrication method
JP2018007437A (ja) * 2016-07-04 2018-01-11 市川　雅英 コードレス送電システム

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