WO2019059231A1 - Dispositif d'énergie photovoltaïque - Google Patents

Dispositif d'énergie photovoltaïque Download PDF

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WO2019059231A1
WO2019059231A1 PCT/JP2018/034656 JP2018034656W WO2019059231A1 WO 2019059231 A1 WO2019059231 A1 WO 2019059231A1 JP 2018034656 W JP2018034656 W JP 2018034656W WO 2019059231 A1 WO2019059231 A1 WO 2019059231A1
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layer
photoelectric conversion
group
electrode
conversion layer
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PCT/JP2018/034656
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English (en)
Japanese (ja)
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憲二郎 福田
隆夫 染谷
シャオミン シュー
ソンジュン パク
北澤　大輔
山本　修平
悟 下村
伸博 渡辺
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東レ株式会社
国立研究開発法人理化学研究所
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Priority to JP2018553163A priority Critical patent/JPWO2019059231A1/ja
Publication of WO2019059231A1 publication Critical patent/WO2019059231A1/fr

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/80—Constructional details
    • H10K30/84—Layers having high charge carrier mobility
    • 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
    • Y02E10/549—Organic PV cells

Definitions

  • the present invention relates to a photovoltaic device.
  • the flexible electronic circuit which has the organic transistor produced as an experiment using the ultra-thin (1 micrometer) polymer foil as a base material is known (for example, refer nonpatent literature 1).
  • Flexible sheet devices have been proposed in which such flexible electronic circuits are combined with flexible sensors, photoelectric conversion devices such as photovoltaic elements, light emitting elements, secondary batteries, and the like.
  • This type of seat device utilizes lightweight and flexible features, and as a wearable device to be worn directly on clothing or body surface, monitors health indicators such as human body temperature, pulse rate, body water content, blood pressure, etc. Attempts to transmit or record data and use it for health care are attracting attention.
  • Wearable devices are required to be able to follow the movement of humans or animals, withstand bending during desorption, and be able to use them for a certain period of time without causing deterioration in performance and the like.
  • Kaltenbrunner et al. "An ultra-lightweight design for impermissible plastic electronics", Nature, 2013, volume 499, number 7459, p. 458-463
  • a photoelectric conversion device mounted on such a flexible device is required to have characteristics that are less likely to cause breakage or performance deterioration at the time of bending deformation or the like.
  • An object of the present invention is to obtain a photovoltaic device that is compatible with such a flexible device and that can achieve both flexibility and durability.
  • a photovoltaic device comprising: a disposed substrate, wherein the photoelectric conversion layer includes a polymer having a structure represented by the following general formula (1), and at least one of the substrates is a fluorine It is a photovoltaic device having a multilayer structure including a resin layer and a paraxylylene polymer layer.
  • R 1 represents an alkoxycarbonyl group in which the alkyl moiety is a linear alkyl or an alkanoyl group in which the alkyl moiety is a linear alkyl, and these are substituted as long as they maintain a linear structure
  • R 2 s may be the same or different and each represents a heteroaryl group which may be substituted
  • X represents a hydrogen atom or a halogen atom
  • Y represents a sulfur atom (S) or an oxygen atom Represents (O)
  • n represents a degree of polymerization, and represents an integer of 2 or more and 1,000 or less.
  • the photoelectric conversion layer 3 contains a conjugated polymer having a structure represented by the following general formula (1).
  • R 1 represents an alkoxycarbonyl group in which the alkyl moiety is a linear alkyl group or an alkanoyl group in which the alkyl moiety is a linear alkyl group, and these are substituted as long as they maintain a linear structure It does not matter.
  • R 1 having a carbonyl group at the 2-position of the thieno [3,4-b] thiophene skeleton in the above general formula (1), the HOMO level of the conjugated polymer can be deepened, and the electron donor When used as an organic material, it is possible to increase the open circuit voltage of the photovoltaic device.
  • the linear alkyl group can improve the packing property of the copolymer as compared to the branched alkyl group, and thus can improve the carrier mobility of the conjugated polymer.
  • R 2 s may be the same or different and each represents a heteroaryl group which may be substituted.
  • the planarity of the copolymer can be enhanced and the carrier mobility of the conjugated polymer can be enhanced.
  • the alkoxycarbonyl group represented by R 1 represents an alkyl group via an ester bond. Further, the alkanoyl group represented by R 1 represents an alkyl group via a ketone group.
  • the linear alkyl group for R 1 is, for example, a linear alkyl group such as propyl group, butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, decyl group, undecyl group and dodecyl group. It may be a saturated aliphatic hydrocarbon group, may be unsubstituted, or may be substituted as long as a linear structure is maintained.
  • keeping a linear structure means that a side chain containing a carbon atom is not formed even when the linear alkyl group is substituted by a substituent.
  • the substituent substituted to the linear alkyl group may be further substituted.
  • substituents when substituted while maintaining a linear structure include alkoxy group, thioalkoxy group and halogen.
  • the number of carbon atoms of the linear alkyl group is preferably 4 or more and 10 or less, and more preferably 7 or more and 9 or less, in order to achieve sufficient solubility of the conjugated polymer and carrier mobility.
  • halogen has an effect of improving the aggregation state of a conjugated polymer, and fluorine having a small atomic radius is preferably used.
  • the heteroaryl group represented by R 2 is, for example, an atom other than carbon such as thienyl group, furyl group, pyrrolyl group, imidazolyl group, pyrazolyl group, oxazolyl group, pyridyl group, pyrazyl group, pyrimidyl group, thienothienyl group, etc.
  • the hetero aromatic ring group which it has is shown.
  • the carbon number of the heteroaryl group used for R 2 is preferably 2 or more and 6 or less in order to maintain carrier mobility, and in order to suppress twist with the benzodithiophene skeleton to improve packing properties, the 5-membered member having a small molecular size
  • the thienyl group or furyl group which is a ring structure is particularly preferably used.
  • the substituent on the heteroaryl group is preferably an alkyl group or an alkoxy group having 6 to 10 carbon atoms in order to achieve both solubility of the conjugated polymer and carrier mobility, and these are linear And may be branched.
  • X represents a hydrogen atom or a halogen atom.
  • the halogen is any of fluorine, chlorine, bromine and iodine.
  • fluorine having a small atomic radius is particularly preferably used.
  • Y represents a sulfur atom (S) or an oxygen atom (O), and among these, a sulfur atom (S) is preferable.
  • n shows a polymerization degree and represents an integer of 2 or more and 1,000 or less.
  • the carrier mobility of the conjugated polymer can be enhanced, and an effective carrier path can be formed in the bulk heterojunction thin film, so that the photoelectric conversion efficiency can be enhanced.
  • n is less than 100 for ease of synthesis.
  • the degree of polymerization can be determined from the weight average molecular weight.
  • the weight average molecular weight can be determined using GPC (gel permeation chromatography) and converted to a polystyrene standard sample.
  • the direction of the thieno [3,4-b] thiophene skeleton in the conjugated polymer may be random or regioregular.
  • the photoelectric conversion layer preferably further contains an electron accepting organic material (n-type organic semiconductor).
  • an electron accepting organic material for example, 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA), 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA), 3,4, 9,10-Perylenetetracarboxylic bisbenzimidazole (PTCBI), N, N'-dioctyl-3,4,9,10-naphthyltetracarboxydiimide (PTCDI-C8H), 2- (4-biphenylyl) -5- Oxazole derivatives such as (4-t-butylphenyl) -1,3,4-oxadiazole (PBD), 2,5-di (1-naphthyl) -1,3,4-oxadiazole (BND), 3- (4-Biphenylyl) -4-phenyl-5- (4-t-butylphen
  • Electron-donating organic materials are required to have many properties such as narrow band gap, high carrier mobility, solubility in organic solvents, and compatibility with electron-accepting materials represented by fullerene derivatives.
  • the conjugated polymer having the structure represented by (1) can satisfy all of these characteristics, and can be preferably used as an electron donating organic material in the photoelectric conversion layer 3 of the photovoltaic device.
  • conjugated polymer having a structure represented by the above general formula (1) examples include the following structures.
  • n shows an integer of 2 or more and 1,000 or less.
  • a conjugated polymer having a structure represented by the general formula (1) contains a plurality of structural units in which the combination of R 1 , R 2 and X in the structure represented by the general formula (1) is different. It does not matter.
  • a conjugated polymer for example, a conjugated polymer having the following structure is mentioned.
  • the numbers attached to the repeating units enclosed in parentheses represent the ratio of the repeating units.
  • n represents an integer of 2 or more and 1,000 or less.
  • the conjugated polymer having the structure represented by the above general formula (1) may be a copolymer further containing a divalent conjugated linking group.
  • the divalent conjugated linking group is preferably 20% by weight or less based on the entire conjugated polymer in order to maintain the carrier mobility of the conjugated polymer, and more preferably 10% by weight or less.
  • the following structures are mentioned as an example of a preferable bivalent conjugation type coupling group.
  • a structure composed of a thieno [3,4-b] thiophene skeleton and a benzo [1,2-b: 4,5-b '] dithiophene skeleton is preferable in order to maintain the carrier mobility of the conjugated polymer.
  • R 3 to R 53 may be the same or different and are selected from hydrogen, an alkyl group, an alkoxy group, an alkoxycarbonyl group, an alkylthioester group, an alkanoyl group, an aryl group, a heteroaryl group and a halogen.
  • the conjugated polymer having the structure represented by the general formula (1) is, for example, Y. Liang, D .; Feng, Y. Wu, S. -T. Tsai, G. Li, C.I. Ray, L. Yu, "Journal of the American Chemical Society", 2009, 131, 7792, or F. Yu et al. He, W. Wang, W. Chen, T .; Xu, S. B. Darling, J.M. Strzalka, Y. Liu, L .; It can synthesize
  • the photoelectric conversion layer 3 may have a plurality of photoelectric conversion layers.
  • the photoelectric conversion layer 3 is a layer further having a layer made of thin film single crystal silicon, thin film polycrystalline silicon, thin film microcrystalline silicon, amorphous silicon, perovskite type compounds, other inorganic semiconductor materials, and dye materials. May be
  • the thickness of the photoelectric conversion layer containing a conjugated polymer having a structure represented by the above general formula (1) is usually 50 nm to 500 nm.
  • the photoelectric converting layer 3 may contain p-type organic-semiconductor material other than the conjugated polymer which has a structure represented by the said General formula (1).
  • p-type organic semiconductor materials include fused aromatic hydrocarbons such as pentacenes, rubrenes and thiophenes, porphyrins, phthalocyanines, diamine derivatives, and amine derivatives such as TPD.
  • the electrodes are disposed on both sides of the photoelectric conversion layer 3.
  • one of the electrodes is referred to as a “first electrode” (symbol 2 in FIG. 1), and the other is referred to as a “second It is called “electrode” (symbol 4 in FIG. 1).
  • “disposed on both sides” is not necessarily limited to the aspect arrange
  • the embodiment in which the hole transport layer and the electron transport layer described later are present is included.
  • the “first electrode” is an electrode having such a light transmitting property, even if the first electrode 2 and the second electrode 4 are both electrodes having a light transmitting property.
  • the electrodes may be the same or even the same electrode, and in such a sense, "first" and “second” are merely designations for convenience.
  • the first electrode 2 has visible light transparency.
  • the average value of the total light transmittance of the first electrode 2 in the visible light band is preferably 60% or more, and more preferably 70% or more.
  • the first electrode 2 may have light scattering properties in the range in which the total light transmittance satisfies these values.
  • the first electrode 2 is, for example, a transparent electrode layer.
  • the first electrode 2 may be formed of metal oxide such as indium tin oxide (ITO), nickel oxide, tin oxide, indium oxide, indium-zirconium oxide (IZO), titanium oxide, zinc oxide, etc. Good.
  • the first electrode 2 may be a thin film made of aluminum or silver to have a light transmitting property, a light transmitting organic conductive material such as PEDOT (polyethylenedioxythiophene): PSS (polystyrene sulfonate), or A combination thereof or a thin line of aluminum, gold, silver, copper or the like may be combined with the configuration auxiliary electrode.
  • PEDOT polyethylenedioxythiophene
  • PSS polystyrene sulfonate
  • the first electrode 2 may be a metal mesh layer in which a metal having a mesh structure as an electrode is held by a translucent material.
  • the mesh structure may be made of silver, gold, copper or the like.
  • the first electrode 2 may be a metal nanowire layer in which a metal nanowire as an electrode is held by a translucent material.
  • the electrode portion may not have translucency, and a portion formed of a translucent material transmits light by transmitting light.
  • the first electrode 2 may be translucent as a whole.
  • the first electrode 2 may be formed of a translucent conductive polymer.
  • the second electrode 4 may not necessarily have translucency when it is to be a back electrode layer in a solar cell.
  • the second electrode 4 can be a metal film of gold, silver, aluminum or the like.
  • it may have translucency according to a use etc., In that case, it can be an electrode similar to said 1st electrode.
  • Another layer can be interposed between the photoelectric conversion layer 3 and the first electrode 2 or the second electrode 4 as needed for the purpose of improving efficiency, preventing short circuit, and the like.
  • a hole transport layer and an electron transport layer are typical.
  • the hole transport layer As the hole transport layer, conductive polymers such as polythiophene polymers, poly-p-phenylene vinylene polymers, polyfluorene polymers, phthalocyanine derivatives (H 2 Pc, CuPc, ZnPc, etc.), porphyrin derivatives
  • the layer contains polystyrene sulfonate (PSS) in polyethylenedioxythiophene (PEDOT) which is a polythiophene-based polymer or PEDOT.
  • PSS polystyrene sulfonate
  • PEDOT polyethylenedioxythiophene
  • the electron transport layer examples include zinc oxide, electron accepting organic materials (NTCDA, PTCDA, PTCDI-C8H, oxazole derivative, triazole derivative, phenanthroline derivative, phosphine oxide derivative, fullerene compound, CNT, CN-PPV, etc.)
  • NTCDA electron accepting organic materials
  • PTCDA PTCDA
  • PTCDI-C8H oxazole derivative
  • oxazole derivative triazole derivative
  • phenanthroline derivative phenanthroline derivative
  • phosphine oxide derivative fullerene compound
  • CNT CNT, CN-PPV, etc.
  • a layer comprising a material exhibiting n-type semiconductor properties is preferred.
  • the substrate is a layer disposed on one or both of the outside of the first electrode 2 and the second electrode 4 to reinforce and protect the photoelectric conversion layer 3 and the like.
  • At least one of the substrates disposed on one or both of the outer sides of the first and second electrodes has a multilayer structure including a fluororesin layer and a paraxylylene polymer layer. If the difference in strain applied to the two electrode layers is large when the photovoltaic device mounted on the flexible device is deformed, one electrode layer to which a larger strain is applied is extremely easily broken than the other electrode layer. Become.
  • the base material has such a multilayer structure
  • the fluorocarbon resin layer mainly has gas barrier properties
  • the para-xylylene polymer layer has a function to suppress the correlation peeling between the fluorocarbon resin layer and its lower layer Therefore, both moisture resistance and flexibility can be achieved, and a solar cell having practical durability can be realized.
  • the fluorocarbon resin layer is a layer essentially composed of a fluorocarbon resin, and more specifically, means a layer containing 50% by weight or more, more preferably 80% by weight or more of a fluorocarbon resin.
  • a fluorine resin is a synthetic resin obtained by polymerizing an olefin containing fluorine.
  • fluorinated polyethylene such as polytetrafluoroethylene (PTFE, trade name: Teflon (registered trademark)
  • PVDF polydifluoroethylene
  • the thickness of the fluorine resin layer is usually 50 nm to 1 ⁇ m.
  • the paraxylylene polymer layer is a layer essentially composed of the paraxylylene polymer, and more specifically, means a layer containing 50% by weight or more, more preferably 80% by weight or more of the paraxylylene polymer.
  • polyparaxylylene for example, trade name: Parylene (R)
  • the thickness of the paraxylylene polymer layer is usually 500 nm to 5 ⁇ m.
  • the base material may further include a layer other than the fluorocarbon resin layer and the paraxylylene polymer layer, but from the viewpoint of securing the flexibility of the photovoltaic device, it is preferable not to include other layers.
  • the “multilayer structure” is not limited to a structure in which the fluoroplastic layer and the paraxylylene polymer layer are necessarily laminated in contact with each other, as long as both layers are provided, other layers may be interposed between the layers or outside of both layers. It also includes the structures contained in.
  • the order of formation of the fluorocarbon resin layer and the paraxylylene polymer layer is not particularly limited, but it is preferable to form the fluorocarbon resin layer and the paraxylylene polymer layer in this order on the second electrode 4.
  • the base materials needs to have translucency in order to introduce light into the photovoltaic element. That is, according to the description of the above-mentioned electrodes, the base material on the first electrode 2 side (referred to as “first base material” for convenience) (symbol 1 in FIG. 1) needs to have translucency is there.
  • first base material rubber materials such as acrylic rubber, silicone rubber, butadiene rubber, styrene butadiene rubber, isoprene rubber, chloroprene rubber, nitrile rubber, ethylene propylene rubber, urethane rubber, ETFE, PVF, etc.
  • Soft fluorocarbon resin materials such as polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride and polyvinyl alcohol, soft polyolefin copolymers such as EVA and EMA, polystyrenes, AS resins, ABS resins, foams of these, polycarbonates, Cured resins such as condensation polymerization resin such as polyamide and polyester, phenol resin, melamine resin, urea resin, epoxy resin such as SU-8, acrylic resin, methacrylic resin, unsaturated polyester resin, xylylene polymer Material, cycloalkyl polyolefin material, a polycarbonate material, a methacrylic resin material, polyimide material, various photoresist materials and the like.
  • polyolefins such as polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride and polyvinyl alcohol
  • soft polyolefin copolymers such as EVA and EMA
  • polyimide materials and epoxy resins are preferably used in view of transparency, heat resistance, surface smoothness and the like.
  • the said base material can also be used as the 1st base material 1.
  • the aspect of the second base material 5 is not particularly limited, and the translucency can be selected according to the application The thing which it does not have can be used.
  • the material of the second base 5 is not particularly limited, and various resin materials and the like can be used depending on the application.
  • the base having the above-described multilayer structure is not used as the first base 1, the base having the multilayer structure is used as the second base 5.
  • the second base material 5 does not necessarily have to have translucency.
  • the first substrate 1 is formed on a glass substrate, and then the first electrode 2, photoelectric It can produce by peeling between a glass substrate and a 1st base material, after forming into a film one by one the conversion layer 3, the 2nd electrode 4, and the 2nd base material 5.
  • FIG. 1 the first substrate 1 is formed on a glass substrate, and then the first electrode 2, photoelectric It can produce by peeling between a glass substrate and a 1st base material, after forming into a film one by one the conversion layer 3, the 2nd electrode 4, and the 2nd base material 5.
  • Example 1 On a glass substrate coated with a fluorine polymer (Novec 2700, 3M), a polyimide precursor (Mitsui Chemical Co., Ltd.) was spin-coated and cured under nitrogen at 270 ° C. for 2 hours to form a 1 ⁇ m thick polyimide layer. Then, an epoxy layer (SU-8 3005, MicroChem Corporation) was spin coated to form a 500 nm thick film as a smooth layer. The laminate of the polyimide layer / epoxy layer corresponds to the first substrate. An ITO layer (first electrode) with a thickness of 100 nm was formed thereon by sputtering.
  • a fluorine polymer Novec 2700, 3M
  • a polyimide precursor Mitsubishi Chemical Co., Ltd.
  • an epoxy layer SU-8 3005, MicroChem Corporation
  • a solution of zinc acetate (0.5 g) and ethanolamine (0.14 ml) in 2-methoxyethanol (5 ml) is spin-coated on the ITO layer, cured in air at 180 ° C. for 30 minutes, and 30 nm thick An electron transport layer of zinc oxide was formed. Furthermore, spin-coating a solution in which a compound PBDTTT-OFT represented by the following formula and PC71BM are mixed at a weight ratio of 1: 1.2 and dissolved in chlorobenzene (containing 2% by volume of 1,8-diiodooctane) It was then dried in vacuum for 30 minutes to form a photoelectric conversion layer with a thickness of about 110 nm.
  • the compound PBDTTT-OFT represented by the following formula is a compound in which the alkyl group portion of R 1 in the above general formula (1) is a linear alkyl.
  • PEDOT: PSS solution was spin-coated on the photoelectric conversion layer and dried at 80 ° C. under nitrogen for 5 minutes to form a hole transport layer of PEDOT: PSS with a thickness of 10 nm.
  • silver with a thickness of 100 nm was formed in a high vacuum (about 10 ⁇ 4 Pa) by a resistance heating evaporation method (second electrode).
  • a polytetrafluoroethylene layer is formed by spin-coating polytetrafluoroethylene (Teflon (registered trademark) 1600, DuPont) to a thickness of 360 nm and curing for 30 minutes at 100 ° C.
  • paraxylylene (diX-SR, manufactured by Third Chemical Co., Ltd.) was deposited to a thickness of 1 ⁇ m by the CVD method.
  • This laminate composed of polytetrafluoroethylene / paraxylylene corresponds to the second base material.
  • the positive electrode and the negative electrode of the photovoltaic device thus manufactured are connected to a 2400 series source meter manufactured by Keithley, and simulated sunlight from the ITO layer side in the atmosphere (Pexcel Technologies PEC-L11, spectrum shape: The sample was irradiated with AM 1.5, intensity: 100 mW / cm 2 ), and current-voltage characteristics were measured. At this time, Jsc was 17.2 A / cm 2 , Voc was 0.79 V, and FF was 0.69, and the photoelectric conversion efficiency calculated from these values was 9.4%. Moreover, when this photovoltaic device was heated in the atmosphere at 100 ° C. for 5 minutes, the photoelectric conversion efficiency did not decrease.
  • Comparative Example 1 A solar cell device was produced in the same manner as in Example 1 except that a compound PBDTTT-EFT represented by the following formula was used instead of PBDTTT-OFT, and the current-voltage characteristics were measured.
  • the compound PBDTTT-EFT represented by the following formula is a compound in which the alkyl group portion of R 1 in the general formula (1) is a branched alkyl.
  • Comparative Example 2 A solar cell device was produced in the same manner as in Example 1 except that the second base material was only paraxylylene (diX-SR, manufactured by THIRD CHEMICAL CO., LTD., Thickness: 1 ⁇ m) (that is, it did not contain a fluorine resin layer). .
  • this solar cell device was heated at 100 ° C. for 5 minutes in the atmosphere, the photoelectric conversion efficiency dropped to about 93% of the initial value.

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  • Photovoltaic Devices (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)

Abstract

L'invention concerne un dispositif d'énergie photovoltaïque qui peut atteindre un équilibre entre la souplesse et la durabilité appropriées pour une utilisation dans un dispositif souple. Le dispositif d'énergie photovoltaïque de la présente invention comprend : une couche de conversion photoélectrique ; des première et seconde électrodes disposées sur les deux côtés de la couche de conversion photoélectrique ; et des substrats disposés sur l'un des côtés externes des première et seconde électrodes ou sur les deux. La couche de conversion photoélectrique contient un polymère ayant la structure représentée par la formule générale (1), et au moins l'un des substrats a une structure multicouche comprenant une couche de résine fluorée et une couche de polymère de paraxylène.
PCT/JP2018/034656 2017-09-21 2018-09-19 Dispositif d'énergie photovoltaïque WO2019059231A1 (fr)

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WO2023190007A1 (fr) * 2022-03-28 2023-10-05 株式会社カネカ Cellule photovoltaïque à pérovskites flexible et son procédé de fabrication

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Publication number Priority date Publication date Assignee Title
WO2022224893A1 (fr) * 2021-04-21 2022-10-27 住友化学株式会社 Composition d'encre, et procédé de fabrication de celle-ci
WO2023190007A1 (fr) * 2022-03-28 2023-10-05 株式会社カネカ Cellule photovoltaïque à pérovskites flexible et son procédé de fabrication

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