WO2016194193A1 - Matériau de conversion de longueur d'onde - Google Patents

Matériau de conversion de longueur d'onde Download PDF

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Publication number
WO2016194193A1
WO2016194193A1 PCT/JP2015/066176 JP2015066176W WO2016194193A1 WO 2016194193 A1 WO2016194193 A1 WO 2016194193A1 JP 2015066176 W JP2015066176 W JP 2015066176W WO 2016194193 A1 WO2016194193 A1 WO 2016194193A1
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WO
WIPO (PCT)
Prior art keywords
skeleton
wavelength conversion
conversion material
wavelength
solar cell
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PCT/JP2015/066176
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English (en)
Japanese (ja)
Inventor
荒谷　介和
広貴 佐久間
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株式会社日立製作所
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Priority to PCT/JP2015/066176 priority Critical patent/WO2016194193A1/fr
Priority to TW105116438A priority patent/TW201643202A/zh
Publication of WO2016194193A1 publication Critical patent/WO2016194193A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
    • 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
    • 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
    • H01L31/055—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to a wavelength conversion material for solar cells and a solar cell module using the same.
  • a silicon crystal solar cell module is generally a semiconductor element having a pn junction called a cell, which is a main component that directly contributes to power generation, and is electrically connected in series, and a cover glass that is a light-transmitting member on a light-receiving surface
  • a sealing material also called a filler
  • silicon crystal solar cells generally have low sensitivity to ultraviolet light. Therefore, attempts have been made to increase the conversion efficiency by increasing the light in the wavelength region with high sensitivity by converting the light in the ultraviolet region into the wavelength in the visible region or the near infrared region.
  • Patent Documents 1 and 2, etc. have tried to increase the conversion efficiency by increasing the light in the wavelength region with high sensitivity by converting the light in the ultraviolet region of the sunlight spectrum to the visible region using a fluorescent material. It is made in.
  • the output improvement effect of the solar cell obtained by laminating layers containing wavelength conversion materials as described in Patent Documents 1 and 2 has not been sufficient. This is because the efficiency of converting light in a wavelength region with low sensitivity of conversion efficiency of solar cells into light with high sensitivity was low.
  • the subject of this invention is providing the wavelength conversion material for solar cells which can convert efficiently the light of the wavelength of less than 500 nm in which the sensitivity of a solar cell is relatively low into the light of 500 nm or more with the high sensitivity of a solar cell. is there.
  • the material (A) having an absorption wavelength peak of less than 500 nm and the material (B) having an emission wavelength peak of 500 nm or more are converted into a material (A).
  • the present invention has been completed by finding that the above-mentioned problems can be solved by making it exist so that it is possible to emit light by energy transfer from (1).
  • a solar cell wavelength conversion material comprising a material (A) having an absorption wavelength peak of less than 500 nm and a material (B) having an emission wavelength peak of 500 nm or more, The said wavelength conversion material which exists so that material (B) can be light-emitted by the energy transfer from material (A).
  • the wavelength conversion material according to (1) wherein a site contributing to energy transfer in the material (A) and a site contributing to light emission in the material (B) are bonded via a chemical bond or a linker.
  • the wavelength conversion material according to (2), wherein a site contributing to light emission in the material (B) is located at the end of the wavelength conversion material.
  • the site contributing to energy transfer in the material (A) is a carbazole skeleton, triallylamine skeleton, phenanthroline skeleton, biphenyl skeleton, benzothiophene skeleton, benzofuran skeleton, triphenylene skeleton, metal quinolinol complex, anthracene skeleton, pentacene skeleton, fluorene
  • the portion contributing to light emission in the material (B) includes at least one selected from a coumarin skeleton, a quinacridone skeleton, an anthracene skeleton, a carbazole skeleton, a rubrene skeleton, an Ir complex, and a pyran skeleton.
  • the wavelength conversion material according to any one of 7). (9) a solar battery cell; A sealing layer containing the wavelength conversion material according to any one of (1) to (8), provided on the light-receiving surface side of the solar battery cell; A solar cell module.
  • wavelength conversion material for a solar cell of the present invention light having a wavelength of less than 500 nm, which is relatively low in sensitivity of the solar cell, can be efficiently converted into light having a sensitivity of 500 nm or more.
  • the present invention is a wavelength conversion material for solar cells comprising a material (A) having an absorption wavelength peak of less than 500 nm and a material (B) having an emission wavelength peak of 500 nm or more,
  • the present invention relates to the above-described wavelength conversion material (hereinafter, also referred to as the wavelength conversion material of the present invention) that exists so that the material (B) can emit light by energy transfer from the material (A).
  • the material (B) exists so that it can emit light by energy transfer from the material (A)” means that the material (A) absorbs sunlight and emits light from the material (A). There is a portion where the spectrum overlaps with the absorption spectrum of the material (B), and the material (B) is present in the vicinity of the material (A) within 100 nm.
  • the difference between the absorption wavelength peak and the emission wavelength peak is preferably 20 to 200 nm, more preferably 50 to 200 nm, and particularly preferably 100 to 150 nm.
  • the material (A) having an absorption wavelength peak of less than 500 nm is a material that absorbs light and moves the excited state energy formed thereby to the light emitting material. “Less than 500 nm” indicates, for example, 300 to 450 nm.
  • the material (A) preferably has an emission wavelength peak at 300 to 510 nm, more preferably 300 to 450 nm, particularly preferably 400 to 450 nm, from the viewpoint of efficiently generating energy transfer with respect to the material (B).
  • the material (A) preferably has an emission wavelength peak at 300 to 510 nm, more preferably 300 to 450 nm, and particularly preferably 300 to 400 nm from the viewpoint of efficiently generating energy transfer with respect to the material (B).
  • the material (A) include polycyclic aromatic materials (carbazole materials, fluorene materials, triallylamine materials, phenanthroline materials, biphenyl materials, benzothiophene materials, benzofuran materials, acridines. Materials, triphenylene materials, metal quinolinol complex materials, anthracene materials, pyrene materials and pentacene materials), metal complex materials, silyl materials, allylmethane materials, pyridine materials, imidazole materials, and perylene materials Those skilled in the art can appropriately select the material (A) in consideration of the absorption wavelength peak of the material (B) to be used and the preferable emission wavelength peak described above.
  • the carbazole skeleton, triallylamine skeleton, phenanthroline skeleton, biphenyl skeleton, benzothiophene skeleton, benzofuran skeleton, triphenylene skeleton, metal quinolinol complex, anthracene skeleton, and pentacene skeleton are particularly considered as sites that contribute to energy transfer. And those containing at least one selected from a fluorene skeleton, a pyrene skeleton and an acridine skeleton are preferable.
  • the material (B) having an emission wavelength peak of 500 nm or more receives the excitation energy from the material (A) that is an energy transfer material and emits light.
  • “500 nm or more” indicates, for example, 500 to 900 nm.
  • the material (B) preferably has an absorption wavelength peak at 300 to 500 nm, more preferably 300 to 450 nm, from the viewpoint of efficiently generating energy transfer with respect to the material (A).
  • the material (B) preferably has an absorption wavelength peak at 300 to 500 nm, more preferably 350 to 500 nm, from the viewpoint of efficiently generating energy transfer with respect to the material (A).
  • the material (B) include polycyclic aromatic materials (coumarin materials, quinacridone materials, anthracene materials, carbazole materials, pyran materials, and rubrene materials), Ir complexes, and oxadiazoles.
  • System material, Eu complex, Ru complex, Pt complex, etc., and those skilled in the art can appropriately select the material (A) in consideration of the emission wavelength peak of the material (A) to be used and the preferable absorption wavelength peak described above. It is possible to choose.
  • the site contributing to light emission includes at least one selected from a coumarin skeleton, a quinacridone skeleton, an anthracene skeleton, a carbazole skeleton, a rubrene skeleton, an Ir complex, and a pyran skeleton.
  • a site contributing to energy transfer in the material (A) and a site contributing to light emission in the material (B) are bonded via a chemical bond or a linker.
  • the material (B) can efficiently cause energy transfer from the material (A), and can be used as it is dispersed in the sealing layer.
  • part which contributes to light emission in material (B) is located in the terminal from a viewpoint of suppressing the efficiency reduction by aggregation of the light emission site
  • the linker is a polar group, particularly a carboxyl group and an amide group, and an alkyl group, from the viewpoint of reducing the overlap of the electron cloud of the site that absorbs light and the site that emits light and not losing the properties of each bundle after bonding. It is preferable that they are bonded via at least one selected from an aryl group, an ether group and a sulfide group.
  • the linker has the following structure: Or at least one selected from the group consisting of:
  • the wavy line is a site that contributes to energy transfer in the material (A), a site that contributes to light emission in the material (B), or a binding site with a structure contained in another linker, and Ar is substituted.
  • n is an integer of 1 to 10.
  • the aromatic hydrocarbon group include monocyclic, bicyclic, and tricyclic aromatic hydrocarbon groups such as phenyl and naphthyl.
  • the site contributing to energy transfer in the material (A) and the site contributing to light emission in the material (B) are bonded via a chemical bond or a linker, in the material (A)
  • the molar ratio between the site contributing to energy transfer and the site contributing to light emission in the material (B) can be appropriately determined from the viewpoint of the ease of energy transfer and the difficulty of concentration quenching.
  • the ratio is preferably 100: 1, more preferably 5: 1 to 100: 1, and particularly preferably 5: 1 to 80: 1.
  • the wavelength conversion material of the present invention is encapsulated in resin particles from the viewpoint of efficiently generating energy transfer.
  • the dispersibility of the wavelength conversion material is improved, and the incident sunlight can be efficiently introduced into the solar battery cell without being scattered.
  • a commonly used method can be used without any particular limitation.
  • it can be prepared by preparing a mixture of the monomer compound constituting the wavelength conversion material and the resin particles and polymerizing the mixture.
  • a resin particle containing the wavelength conversion material can be obtained by preparing a mixture containing the wavelength conversion material and the vinyl compound and polymerizing the vinyl compound using a radical polymerization initiator.
  • the usage-amount of a radical polymerization initiator can be suitably selected according to the kind of vinyl compound, the refractive index of the resin particle formed, etc., and is used by the usage-amount normally used.
  • the wavelength conversion material is included in the resin particles, the content of the wavelength conversion material in the resin particles is 1 to 50 parts by mass with respect to 100 parts by mass of the resin particles from the viewpoint of efficiently generating energy transfer.
  • the amount is preferably 1 to 10 parts by mass.
  • the material (A) When the wavelength conversion material is encapsulated in the resin particle without bonding the site contributing to energy transfer in the material (A) and the site contributing to light emission in the material (B) via a chemical bond or a linker, the material (A) can be determined as appropriate from the viewpoint of efficiently performing energy transfer and not causing concentration quenching. Is preferably ⁇ 100: 1, more preferably 5: 1 to 100: 1, and particularly preferably 50: 1 to 100: 1.
  • the monomer compound constituting the resin particles is not particularly limited, but is preferably a vinyl compound from the viewpoint of suppressing light scattering.
  • the vinyl compound is not particularly limited as long as it is a compound having at least one ethylenically unsaturated bond, and an acrylic monomer, a methacrylic monomer, an acrylic oligomer, which can be converted into a vinyl resin, particularly an acrylic resin or a methacrylic resin, upon polymerization reaction, A methacryl oligomer or the like can be used without particular limitation.
  • the vinyl compound it is preferable to use at least one selected from alkyl acrylates and alkyl methacrylates, and at least one selected from methyl acrylate, methyl methacrylate, ethyl acrylate, and ethyl methacrylate is used. It is more preferable.
  • radical polymerization initiator a commonly used radical polymerization initiator can be used without any particular limitation.
  • a peroxide etc. are mentioned preferably.
  • the present invention also relates to a solar cell module.
  • the solar cell module of this invention has a photovoltaic cell and the sealing layer provided in the light-receiving surface side of the photovoltaic cell and containing the said wavelength conversion material.
  • FIG. 1 is a schematic cross-sectional view showing an example of a solar cell module.
  • a protective layer 2 is provided on the light receiving surface of the solar cell 1
  • a back film 3 is provided on the back surface side.
  • a sealing layer 4 is provided between the protective layer 2 and the solar battery cell 1.
  • the sealing layer 4 includes a wavelength conversion material.
  • a back surface sealing layer 5 is provided between the back film 3 and the solar battery cell 1. If the sealing layer 5 for back surfaces can seal the photovoltaic cell 1, it will not be specifically limited.
  • the sealing layer may contain a dispersion medium resin in addition to the wavelength conversion material.
  • the dispersion medium resin include acrylic resin, polycarbonate resin, polystyrene resin, polyolefin resin, polyvinyl chloride resin, polyether sulfone resin, polyarylate resin, polyvinyl acetal resin, epoxy resin, silicone resin, fluorine Examples thereof include resins and copolymers thereof.
  • the dispersion medium resin may be used alone or in combination of two or more. From the viewpoint of durability and versatility, those having a structural unit derived from methyl (meth) acrylate are more preferred.
  • copolymer resin examples include (meth) acrylate-styrene copolymer, ethylene-vinyl acetate copolymer (hereinafter abbreviated as “EVA”), and the like.
  • EVA is preferable in terms of moisture resistance, cost, and versatility
  • (meth) acrylic ester resin is preferable in terms of durability and surface hardness.
  • the combined use of EVA and (meth) acrylic ester resin is more preferable from the viewpoint of combining the advantages of both.
  • the wavelength conversion material in which the site contributing to energy transfer in the material (A) and the site contributing to light emission in the material (B) are bonded via a chemical bond or a linker is dispersed as it is in the dispersion medium resin.
  • the weight ratio between the wavelength conversion material and the dispersion medium resin can be appropriately determined from the viewpoint of efficiently performing energy transfer and not causing concentration quenching, and is preferably from 1: 2 to 1: 100, for example. More preferably, the ratio is 1: 2 to 1:10.
  • the weight ratio between the dispersion medium resin and the resin particles can be appropriately determined from the viewpoint of maintaining the film strength and moisture permeability.
  • it is preferably 1: 1 to 70: 1, preferably 1: 1 to 60: 1, particularly preferably 1: 1 to 10: 1, and 1: 1 to 5: 1 is more particularly preferable.
  • the sealing layer may contain an ultraviolet absorber in addition to the wavelength conversion material and the dispersion medium resin.
  • ultraviolet absorber as used herein means one having an absorption wavelength peak at 300 to 450 nm and not corresponding to the material (A). More preferably, the content of the ultraviolet absorber in the sealing layer substantially does not contain the ultraviolet absorber.
  • the content of the ultraviolet absorber in the sealing layer is preferably less than 0.05 parts by weight and less than 0.001 parts by weight with respect to 100 parts by weight of the dispersion medium resin. Is more preferable, and it is particularly preferable that substantially no UV absorber is contained. Thereby, since the calorific value by the relaxation process from ultraviolet absorption is suppressed and the temperature rise of a cell is suppressed, the electric power generation efficiency of a solar cell module can be improved.
  • the sealing layer is a coupling agent, a plasticizer, a flame retardant, an antioxidant, a light stabilizer, a rust inhibitor, a processing aid, as long as the effects of the present invention are not impaired.
  • You may contain other additives, such as an agent and a coloring agent.
  • the total amount of the other additives is usually 10 parts by mass or less, preferably 1 part by mass or less, with respect to 100 parts by mass of the wavelength conversion material.
  • the sealing layer can be manufactured using a known technique. For example, at least the wavelength conversion material and, if necessary, the dispersion medium resin, and if necessary, a method of melt-kneading other additives to form a sheet, or varnishing the resin and adding the wavelength conversion material Then, it is possible to use a method such as applying to a sheet and removing the solvent. Specifically, for example, two release sheets are opposed to each other through a spacer, and the melt-kneaded composition is applied to a gap formed between the two release sheets, and hot pressed from both sides. A sheet can be formed.
  • the thickness of the sealing layer is preferably 10 to 1000 ⁇ m, and more preferably 400 to 650 ⁇ m.
  • Example 1 Similar to the structure shown in FIG. 1, a solar cell module of Example 1 was fabricated using the following materials. Tempered glass was used as the protective layer 2. As a dispersion medium resin for the sealing layer 4, ethylene-vinyl acetate resin (EVA) was used.
  • EVA ethylene-vinyl acetate resin
  • Formula (1) as an energy transfer material of the wavelength conversion material The material represented by is used.
  • the peak wavelength of light absorption of this material is 420 nm, and the emission peak wavelength of this material is 506 nm.
  • the formula (2) The material represented by is used as the light emitting material of the wavelength conversion material.
  • the peak wavelength of light absorption of this material is 485 nm, and the peak wavelength of light emission is 600 nm.
  • wavelength conversion materials were included in the resin particles.
  • PMMA polymethyl methacrylate
  • the wavelength conversion material is encapsulated with the energy transfer material of the formula (1) and the light emitting material of the formula (2) using methyl methacrylate as a vinyl compound and a radical polymerization agent lauroyl peroxide. Resin particles were obtained.
  • the weight ratio of the energy transfer material of formula (1) used in the polymerization to the light emitting material of formula (2) was 99: 1.
  • the particles were kneaded with a dispersion medium resin to obtain a resin composition.
  • the weight ratio between the dispersion medium resin and the resin particles encapsulating the wavelength conversion material was 100: 2.
  • the sealing layer 4 was formed using the resin composition part obtained on the tempered glass which is a protective layer. The thickness was 0.6 mm.
  • the solar cell 1 was mounted thereon, and the back surface solar cell encapsulating sheet 5 and the back film 3 were laminated with a PEDT film to obtain a solar cell module of Example 1.
  • Comparative Example 1 A solar cell module of Comparative Example 1 was produced in the same manner as in Example 1 except that the wavelength conversion material was not used.
  • the maximum output of the solar cell modules of Example 1 and Comparative Example 1 was measured and compared.
  • the solar cell modules of Example 1 and Comparative Example 1 were installed close to each other, and the output was compared with outdoor natural light.
  • the maximum output of the solar cell module of Example 1 was 1.07 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 1 absorbed light with a wavelength of 500 nm or less and efficiently converted it into light with a wavelength of 500 nm or more.
  • Comparative Example 2 As the energy transfer material of the wavelength conversion material, the formula (3): A solar cell module of Comparative Example 2 was produced in the same manner as in Example 1 except that the material represented by The peak wavelength of light absorption of this material is 510 nm, and the peak wavelength of light emission is 523 nm.
  • the maximum output of the solar cell module of Comparative Example 2 was measured simultaneously with Comparative Example 1 as described above. As a result, the maximum output of the solar cell module of Comparative Example 2 was 0.95 times that of Comparative Example 1. This is because in the solar cell module of Comparative Example 2, the energy transfer material absorbed light having a solar cell conversion efficiency of 500 nm or higher.
  • Comparative Example 3 As the light emitting material of the wavelength conversion material, the formula (4): A solar cell module of Comparative Example 3 was produced in the same manner as in Example 1 except that the compound represented by The peak wavelength of light absorption of this material is 339 nm, and the peak wavelength of light emission is 450 nm.
  • the maximum output of the solar cell module of Comparative Example 3 was measured simultaneously with Comparative Example 1 as described above. As a result, the maximum output of the solar cell module of Comparative Example 3 was 0.98 times that of Comparative Example 1. This is because in the solar cell module of Comparative Example 3, the light emitting material emitted light having a wavelength of less than 500 nm, and the wavelength could not be sufficiently converted to a wavelength with high conversion efficiency of the solar cell.
  • Example 2 Formula (5) as a wavelength conversion material: A solar cell module of Example 2 was produced in the same manner as in Example 1 except that the material represented by the formula (where the ratio of n to m is 10: 1) was used. This material was synthesized by the following steps (1)-(2).
  • the compound of formula (5-1) (0.5 mmol) and the compound of formula (5-4) (0.5 mmol) were placed, and dehydrated toluene (10 ml) was added.
  • a toluene solution (0.2 ml) of V-601 (manufactured by Wako Pure Chemical Industries, Ltd.) was added, and the freeze degassing operation was repeated 5 times. It sealed in vacuum and stirred at 60 ° C. for 60 hours. After the reaction, it was dropped into acetone (500 ml) to obtain a precipitate. Further, reprecipitation with toluene-acetone was repeated twice to obtain the target compound of formula (5).
  • the peak wavelength of light absorption at the part of the Be complex that contributes to the energy transfer of this material is 420 nm. Moreover, the emission peak of this part is 506 nm. The peak wavelength of light absorption of the Ir complex portion that contributes to the light emission of this material is 485 nm. Moreover, the emission peak wavelength of this part is 600 nm. The ratio of n to m was set to 10: 1.
  • This material was kneaded with the dispersion medium resin as it was without being encapsulated in the resin particles to obtain a resin composition.
  • the weight ratio of the wavelength conversion material and the dispersion medium resin was 99: 1.
  • the maximum output of the solar cell module of Example 2 was measured simultaneously with Comparative Example 1. As a result, the maximum output of the solar cell module of Example 2 was 1.07 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 2 absorbed light with a wavelength of 500 nm or less and efficiently converted it into light with a wavelength of 500 nm or more.
  • Example 3 As an energy transfer material of the wavelength conversion material, the formula (6): A solar cell module of Example 3 was produced in the same manner as Example 1 except that the material represented by The peak wavelength of light absorption of this material is 395 nm, and the peak wavelength of light emission is 425 nm.
  • the maximum output of the solar cell module of Example 3 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 3 was 1.09 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 3 more efficiently absorbs light having a wavelength of 500 nm or less and efficiently converts it into light having a wavelength of 500 nm or more.
  • Example 4 As a wavelength conversion material, the formula (7): A solar cell module of Example 4 was produced in the same manner as in Example 2 except that the material represented by the formula (where the ratio of n to m is 10: 1) was used. This material was synthesized as follows.
  • the peak wavelength of light absorption at the site contributing to the energy transfer of this material is 395 nm, and the peak wavelength of light emission at that site is 425 nm. Further, the peak wavelength of light absorption at the site contributing as the light emitting material is 485 nm, and the site of the emission peak at that site is 600 nm.
  • the ratio of n to m of this material was set to 10: 1.
  • the maximum output of the solar cell module of Example 4 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 4 was 1.1 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 4 more efficiently absorbs light having a wavelength of 500 nm or less and efficiently converts it into light having a wavelength of 500 nm or more.
  • Example 5 As a wavelength conversion material, the formula (8): Wherein n is about 6, R 1 is hydrogen, an alkyl group such as optionally substituted methyl, ethyl and propyl groups, R 2 is hydrogen, optionally substituted methyl, ethyl and A solar cell module of Example 5 was fabricated in the same manner as Example 2 except that a material such as a propyl group was used.
  • the peak wavelength of light absorption at the site contributing to the energy transfer of this material is 378 nm, and the peak wavelength of light emission at that site is 414 nm. Further, the peak wavelength of light absorption at the site contributing as the light emitting material is 485 nm, and the site of the emission peak at that site is 600 nm.
  • n is an integer and is set to about 6.
  • the maximum output of the solar cell module of Example 5 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 5 was 1.1 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 5 more efficiently absorbs light having a wavelength of 500 nm or less and efficiently converts it into light having a wavelength of 500 nm or more.
  • Example 6 As the energy transfer material of the wavelength conversion material, the formula (9): A solar cell module of Example 6 was produced in the same manner as in Example 1 except that the material represented by The peak wavelength of light absorption of this material is 370 nm, and the peak wavelength of light emission is 428 nm.
  • the maximum output of the solar cell module of Example 6 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 5 was 1.07 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 6 more efficiently absorbs light having a wavelength of 500 nm or less and efficiently converts it into light having a wavelength of 500 nm or more.
  • Example 7 As an energy transfer material of the wavelength conversion material, the formula (10): A solar cell module of Example 7 was produced in the same manner as Example 1 except that the material represented by The peak wavelength of light absorption of this material is 394 nm, and the peak wavelength of light emission is 408 nm.
  • the maximum output of the solar cell module of Example 7 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 5 was 1.07 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 7 more efficiently absorbs light with a wavelength of 500 nm or less and efficiently converts it into light with a wavelength of 500 nm or more.
  • Example 8 As the energy transfer material of the wavelength conversion material, the material represented by the formula (6) is used, and as the light emitting material of the wavelength conversion material, the formula (11): A solar cell module of Example 8 was produced in the same manner as Example 1 except that the material represented by The peak wavelength of light absorption of the material represented by Formula (6) is 395 nm, and the peak wavelength of light emission is 425 nm. The light absorption peak wavelength of the material represented by the formula (11) is 471 nm, and the light emission peak wavelength is 554 nm.
  • the maximum output of the solar cell module of Example 8 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 8 was 1.07 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 8 more efficiently absorbs light having a wavelength of 500 nm or less and efficiently converts it into light having a wavelength of 500 nm or more.
  • Example 9 As the light emitting material of the wavelength converting material, (12): A solar cell module of Example 9 was produced in the same manner as Example 8 except that the material represented by The peak wavelength of light absorption of this material is 462 nm, and the peak wavelength of light emission is 577 nm.
  • the maximum output of the solar cell module of Example 9 was measured simultaneously with the solar cell module of Comparative Example 1. As a result, the maximum output of the solar cell module of Example 9 was 1.07 times that of the solar cell module of Comparative Example 1. This improvement in output is because the wavelength conversion material in the solar cell module of Example 9 more efficiently absorbs light having a wavelength of 500 nm or less and efficiently converts it into light having a wavelength of 500 nm or more.
  • the wavelength conversion material of the present invention can be used for a solar cell module.

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Abstract

L'invention concerne un matériau de conversion de longueur d'onde pour des batteries solaires qui peut convertir efficacement la lumière de longueurs d'onde inférieure ou égale à 500 nm, à laquelle la sensibilité d'une batterie solaire est relativement faible, en une lumière supérieure ou égale à 500 nm, à laquelle la sensibilité de la batterie solaire est élevée. Le matériau de conversion de longueur d'onde pour des batteries solaires comprend un matériau (A) ayant une crête de longueur d'onde d'absorption inférieure à 500 nm et un matériau (B) ayant une crête de longueur d'onde d'émission de lumière supérieure ou égale à 500 nm, le matériau (B) étant présent de manière à permettre à la lumière d'être émise en conséquence du transfert d'énergie à partir du matériau (A).
PCT/JP2015/066176 2015-06-04 2015-06-04 Matériau de conversion de longueur d'onde WO2016194193A1 (fr)

Priority Applications (2)

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PCT/JP2015/066176 WO2016194193A1 (fr) 2015-06-04 2015-06-04 Matériau de conversion de longueur d'onde
TW105116438A TW201643202A (zh) 2015-06-04 2016-05-26 波長轉換材料

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PCT/JP2015/066176 WO2016194193A1 (fr) 2015-06-04 2015-06-04 Matériau de conversion de longueur d'onde

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WO2016194193A1 true WO2016194193A1 (fr) 2016-12-08

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513794A (ja) * 1991-07-04 1993-01-22 Ricoh Co Ltd 蛍光増感型光電変換素子
JP2011222749A (ja) * 2010-04-09 2011-11-04 Hitachi Chem Co Ltd 波長変換型太陽電池封止材、これを用いた太陽電池モジュール及びこれらの製造方法
WO2013077323A1 (fr) * 2011-11-24 2013-05-30 シャープ株式会社 Corps de guide de lumière, module de cellules solaires, et dispositif de production d'énergie photovoltaïque
JP2013110356A (ja) * 2011-11-24 2013-06-06 Sharp Corp 太陽電池モジュール及び太陽光発電装置
JP2013149729A (ja) * 2012-01-18 2013-08-01 Fujifilm Corp 量子ドット構造体、波長変換素子および光電変換装置
JP2014156428A (ja) * 2013-02-15 2014-08-28 Univ Of Tokyo 抗体結合タンパク質
JP2015099807A (ja) * 2012-03-07 2015-05-28 シャープ株式会社 導光体、太陽電池モジュールおよび太陽光発電装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513794A (ja) * 1991-07-04 1993-01-22 Ricoh Co Ltd 蛍光増感型光電変換素子
JP2011222749A (ja) * 2010-04-09 2011-11-04 Hitachi Chem Co Ltd 波長変換型太陽電池封止材、これを用いた太陽電池モジュール及びこれらの製造方法
WO2013077323A1 (fr) * 2011-11-24 2013-05-30 シャープ株式会社 Corps de guide de lumière, module de cellules solaires, et dispositif de production d'énergie photovoltaïque
JP2013110356A (ja) * 2011-11-24 2013-06-06 Sharp Corp 太陽電池モジュール及び太陽光発電装置
JP2013149729A (ja) * 2012-01-18 2013-08-01 Fujifilm Corp 量子ドット構造体、波長変換素子および光電変換装置
JP2015099807A (ja) * 2012-03-07 2015-05-28 シャープ株式会社 導光体、太陽電池モジュールおよび太陽光発電装置
JP2014156428A (ja) * 2013-02-15 2014-08-28 Univ Of Tokyo 抗体結合タンパク質

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