JP2007287532A - Dye-sensitized solar cell and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dye-sensitized solar cell which can improve the transmission factor of a facing electrode substrate and prevent deterioration in the photoelectric conversion efficiency of the dye-sensitized solar cell, while assuring low electric resistance of the facing electrode substrate with low cost, and to provide a manufacturing method for the same. <P>SOLUTION: A dye-sensitized solar cell 1 has an electrolyte 4 sealed between a photoelectrode substrate 2 with a porous semiconductor electrode film 7 which absorbs and supports a sensitizing dye and a facing electrode substrate 3. The facing electrode substrate 3 includes a facing substrate member 8 made of a transparent resin, many corrosion-resistant metal wire material pieces 11, and a conductive catalyst material film 12 for cladding each of those corrosion-resistant metal wire material pieces 11. Many corrosion-resistant metal wire material pieces 11 cladded with the conductive catalyst material film 12 are arranged so that they are separated from each other at a fixed interval and are extended in parallel and along the facing substrate member 8, wherein a part of each corrosion-resistant metal wire material piece 11 is embedded into the facing substrate member 8. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dye-sensitized solar cell and a method for producing the same, and in particular, an electrolyte is sealed between a photoelectrode substrate having a porous semiconductor electrode film that adsorbs or carries a sensitizing dye and a counter electrode substrate. The present invention relates to a dye-sensitized solar cell and a method for manufacturing the same.

  In recent years, from the viewpoint of environmental problems, solar cells that convert light energy into electrical energy have attracted attention. In particular, dye-sensitized solar cells have attracted attention because they can reduce manufacturing costs. Conventional dye-sensitized solar cells were poor in practicality due to low photoelectric conversion efficiency. Recently, a large amount of dye is adsorbed by making the semiconductor electrode porous to increase the surface area. In addition, a technique for improving photoelectric conversion efficiency has been developed (for example, see Patent Document 1).

  As schematically shown in FIG. 6, a dye-sensitized solar cell using such a technique includes a photoelectrode substrate 102, a counter electrode substrate 103, and an electrolytic solution 104 enclosed therebetween. A dye-sensitized solar cell 101 is known.

  The photoelectrode substrate 102 of the dye-sensitized solar cell 101 includes a substrate member 105, a transparent electrode film 106 formed on the surface of the substrate member 105, and titanium oxide formed on the transparent electrode film 106. The porous semiconductor electrode film 107 is formed, and the dye is adsorbed on the porous semiconductor electrode film 107. The porous semiconductor electrode film 107 is formed by applying a suspension containing semiconductor particles on the transparent electrode film 106, drying it, and baking it.

  On the other hand, the counter electrode substrate 103 of the dye-sensitized solar cell 101 is coated on the counter substrate member 108, the conductive material film 110 formed on the counter substrate member 108, and the conductive material film 110. It is comprised from the electroconductive catalyst material film | membrane 112 which consists of catalysts, such as platinum (for example, refer patent document 2).

  The substrate member 105 and the counter substrate member 108 are disposed so that the conductive catalyst material film 112 and the porous semiconductor electrode film 107 are opposed to each other with a predetermined interval therebetween. The conductive catalyst material film 112 and the porous semiconductor electrode film An electrolyte solution 104 is enclosed between 107 to form a dye-sensitized solar cell 101.

  In this dye-sensitized solar cell 101, when light is incident from the photoelectrode substrate 102 side, the sensitizing dye adsorbed on the surface of the porous semiconductor electrode film 107 is excited by absorbing light in the visible region. Electrons generated by excitation of the sensitizing dye move through the porous semiconductor electrode film 107 and reach the transparent electrode film 106. The electrons that have moved to the transparent electrode film 106 move to the conductive material film 110 via an external circuit that conducts the transparent electrode film 106 and the conductive material film 110 (not shown). The electrons that have moved to the conductive material film 110 move to the electrolyte solution 104 through the conductive catalyst material film 112, and are carried from the counter electrode substrate 103 side to the photoelectrode substrate 102 side by ions in the electrolyte solution 104. Returning to the sensitizing dye of the porous semiconductor electrode film 107. Electric energy is extracted by repeating such an action.

JP-T-5-504023 (first page, FIG. 1) JP 2002-298936 A (paragraph number 0018)

  In such a conventional dye-sensitized solar cell 101, the counter substrate member 108 is used to reduce the cost by reducing the amount of expensive catalyst such as platinum used in the conductive catalyst material film 112 of the counter electrode substrate 103. A conductive material film 110 made of a corrosion-resistant conductive material (for example, a metal oxide such as tin oxide or indium tin oxide (hereinafter referred to as “ITO”) known as a conductive oxide) is formed thereon, A thin conductive catalyst material film 112 made of a catalyst such as platinum is coated on the conductive material film 110.

  In addition, it is desired that light can be incident not only from the photoelectrode substrate 102 side but also from the counter electrode substrate 103 side, so that a so-called see-through type solar cell that is substantially transparent as a whole is manufactured. Even if the counter substrate member 108 of the counter electrode substrate 103 is formed of a transparent material and the conductive material film 110 is formed of transparent ITO in order to manufacture such a so-called see-through solar cell, the conductive material Since the conductive catalyst material film 112 coated on the film 110 is made of a metal such as platinum that hardly transmits light, it is necessary to transmit light by a method such as thinning the conductive catalyst material film 112.

  However, if the conductive catalyst material film 112 is made too thin, there is a problem that the catalytic ability of the counter electrode substrate 103 is lowered and the photoelectric conversion efficiency is lowered. That is, there is a problem that the photoelectric conversion efficiency decreases as the conductive catalyst material film 112 is made thinner in order to improve the transmittance of the counter electrode substrate 103.

  Even when a transparent conductive material film 110 made of ITO or the like is used for the counter electrode substrate 103, there is a problem that the counter electrode substrate 103 is expensive and has high electric resistance.

  Furthermore, the connection of the conductive material film 110 to an external circuit (not shown) that conducts the transparent electrode film 106 and the conductive material film 110 is complicated.

  Therefore, in view of such a conventional problem, the present invention can improve the transmittance of the counter electrode substrate and prevent a decrease in photoelectric conversion efficiency of the dye-sensitized solar cell. It is an object of the present invention to provide a dye-sensitized solar cell having a low electric resistance of an electrode substrate and capable of being easily and inexpensively manufactured and a method for manufacturing the same.

  As a result of diligent research to solve the above problems, the present inventor has found that a dye in which an electrolyte is enclosed between a photoelectrode substrate having a porous semiconductor electrode film that adsorbs or carries a sensitizing dye and a counter electrode substrate In the counter electrode substrate of the sensitized solar cell, the transmittance of the counter electrode substrate can be improved by arranging the corrosion-resistant metal wire covered with the conductive catalyst material film so as to extend along the counter substrate member. In addition, the present inventors have found that a dye-sensitized solar cell having a low electrical resistance of the counter electrode substrate can be produced inexpensively and easily while preventing a decrease in photoelectric conversion efficiency of the dye-sensitized solar cell. The invention has been completed.

  That is, the dye-sensitized solar cell according to the present invention is a dye-sensitized solar cell in which an electrolyte is sealed between a photoelectrode substrate having a porous semiconductor electrode film that adsorbs or carries a sensitizing dye and a counter electrode substrate. In the battery, the counter electrode substrate includes a counter substrate member, a corrosion-resistant metal wire, and a conductive catalyst material film, and the corrosion-resistant metal wire is covered with the conductive catalyst material film and arranged along the counter substrate member. It is characterized by.

  In this dye-sensitized solar cell, it is preferable that a part of the corrosion-resistant metal wire is embedded in the counter substrate member. Moreover, it is preferable that a corrosion-resistant metal wire consists of a some corrosion-resistant metal wire piece, and these some corrosion-resistant metal wire pieces are arrange | positioned mutually spaced apart by predetermined spacing. In this case, it is preferable that the plurality of corrosion-resistant metal wire pieces are arranged substantially parallel to each other. The corrosion-resistant metal wire is preferably a wire made of titanium, and the conductive catalyst material film is preferably a film made of platinum.

  Further, the method for producing a dye-sensitized solar cell according to the present invention comprises a step of preparing a photoelectrode substrate provided with a porous semiconductor electrode film that adsorbs or carries a sensitizing dye, and a corrosion-resistant metal wire as a conductive catalyst material film. And a step of producing a counter electrode substrate by placing the corrosion-resistant metal wire coated with the conductive catalyst material film so as to extend along the counter substrate member, and the photoelectrode substrate and the counter electrode substrate are opposed to each other. And a step of encapsulating an electrolyte between them.

  In the step of producing the counter electrode substrate of the method for producing the dye-sensitized solar cell, after placing the corrosion-resistant metal wire coated with the conductive catalyst material film on the counter substrate member, pressurizing while heating, It is preferable that a part of the corrosion-resistant metal wire covered with the conductive catalyst material film is embedded in the counter substrate member. The corrosion-resistant metal wire is preferably a wire made of titanium, and the conductive catalyst material film is preferably a film made of platinum.

  ADVANTAGE OF THE INVENTION According to this invention, the transmittance | permeability of a counter electrode substrate can be improved, the fall of the photoelectric conversion efficiency of a dye-sensitized solar cell can be prevented, and the dye sensitization with the low electrical resistance of a counter electrode substrate is possible. Type solar cell can be manufactured inexpensively and easily.

  Hereinafter, embodiments of a dye-sensitized solar cell and a method for manufacturing the same according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 schematically shows an embodiment of a dye-sensitized solar cell according to the present invention. As shown in FIG. 1, the dye-sensitized solar cell 1 of the present embodiment includes a photoelectrode substrate 2, a counter electrode substrate 3, and an electrolyte 4 enclosed between them.

  The photoelectrode substrate 2 is formed on a transparent (light transmissive) substrate member 5, a transparent electrode film 6 formed on the surface of the substrate member 5, and the transparent electrode film 6, and absorbs a sensitizing dye. The porous semiconductor electrode film 7 is supported. The substrate member 5 is made of a transparent resin material such as acrylic, polyethylene terephthalate (PET), polyethylene naphthalene (PEN), polyolefin, polycarbonate (PC), or a transparent glass material. When the substrate member 5 is formed of a transparent resin material, it can be formed by injection molding, heat compression molding, extrusion molding, or the like.

  On the other hand, the counter electrode substrate 3 includes a transparent counter substrate member 8, a plurality of corrosion-resistant metal wire pieces 11, and a conductive catalyst material film 12. Each of the plurality of corrosion-resistant metal wire pieces 11 is covered with a conductive catalyst material film 12 and arranged substantially parallel to each other at a predetermined interval (substantially constant interval), with approximately half or more than half facing each other. Embedded in the substrate member 8.

  The counter substrate member 8 is formed of a transparent resin material such as acrylic, polyethylene terephthalate (PET), polyethylene naphthalene (PEN), polyolefin, polycarbonate (PC), and can be formed by injection molding, thermal compression molding, extrusion molding, or the like. it can.

  The corrosion-resistant metal wire rod 11 is made of a corrosion-resistant metal material such as titanium, tantalum, titanium alloy, or tantalum alloy, and is preferably made of titanium. The conductive catalyst material film 12 is made of a conductive catalyst material such as platinum, carbon or palladium, and is preferably made of platinum.

  As shown in FIGS. 2 and 3, in the counter electrode substrate 3 of the dye-sensitized solar cell of the present embodiment, each of the plurality of corrosion-resistant metal wire pieces 11 having a substantially circular cross section with a diameter of about 20 to 200 μm The conductive catalyst material film 12 is coated with a thickness of 5 to 30 nm, preferably 10 to 20 nm. These corrosion-resistant metal wire pieces 11 are arranged so as to be spaced apart from each other at a predetermined interval (50 to 100 μm, preferably 100 to 300 μm) and to extend substantially in parallel and along the counter substrate member 8. Alternatively, more than half of the portion is embedded in the counter substrate member 8. As described above, when about half of each of the corrosion-resistant metal wire pieces 11, in particular, more than half is embedded in the counter substrate member 8, the gap between the photoelectrode substrate 2 and the counter electrode substrate 3 can be filled with the electrolyte 4 without any gap. it can. That is, each of the corrosion-resistant metal wire pieces 11 is not embedded in the counter substrate member 8 but is simply placed on the counter substrate member 8. Although it is difficult for the electrolyte 4 to enter the gap with the counter substrate member 8, if about half or more than half of each corrosion-resistant metal wire piece 11 is embedded in the counter substrate member 8, such a gap is not formed. The gap between the electrode substrate 2 and the counter electrode substrate 3 can be filled with the electrolyte 4 without a gap. In addition, the space | interval (separation distance) of the corrosion-resistant metal wire piece 11 coat | covered with the electroconductive catalyst material film | membrane 12 can be suitably set in consideration of photoelectric conversion efficiency, and the diameter of the corrosion-resistant metal wire piece 11 and an electroconductive catalyst. The thickness of the material film 12 can be set as appropriate from the required transmittance. In addition, the cross-sectional shape of the corrosion-resistant metal wire piece 11 is not limited to a circle but may be a polygon.

  The dye-sensitized solar cell 1 having the above-described structure can be manufactured as follows.

  First, in a vacuum apparatus (not shown) into which argon gas and a small amount of oxygen gas are introduced (not shown), ITO is used as a target material, and sputtering is performed using plasma generated by high-frequency discharge, whereby the photoelectrode substrate 2 is transparent. A transparent electrode film 6 made of ITO is formed on the surface of the substrate member 5.

Next, a porous semiconductor electrode film 7 made of titanium dioxide (TiO ₂ ) or the like is formed on the transparent electrode film 6 thus formed. The porous semiconductor electrode film 7 can be formed by applying a suspension containing semiconductor particles on the transparent electrode film 6, drying the applied suspension, and firing the suspension. A sensitizing dye (for example, ruthenium complex) having a photoelectric conversion function is adsorbed and supported on the porous semiconductor electrode film 7 thus formed. The porous semiconductor electrode film 7 may be formed by zinc oxide or the like instead of titanium dioxide, or may be formed by an electrodeposition method or a hydrothermal treatment method instead of the firing method.

  Further, a corrosion-resistant metal wire such as a titanium wire is installed in the vacuum apparatus, and the conductive catalyst material film 12 is continuously formed on the corrosion-resistant metal wire while winding the corrosion-resistant metal wire with a reel. When the conductive catalyst material film 12 made of platinum is formed, platinum is used as a target material, and a sputtering process is performed using plasma generated by direct current discharge.

  Next, as shown in FIG. 4, a plurality of corrosion-resistant metal wire rods 11 covered with a conductive catalyst material film 12 are fixed on a resin-made counter substrate member 8 placed on a fixed lower mold 30. After being arranged so as to be separated from each other at an interval of approximately parallel and to extend along the counter substrate member 8, pressure is applied and heat is applied by the movable upper mold 32 as indicated by the arrow to thereby form a conductive catalyst material. A part of each of the plurality of corrosion-resistant metal wire pieces 11 covered with the film 12 is embedded in the counter substrate member 8.

  The conductive catalyst material film 12 of the counter electrode substrate 3 thus formed and the porous semiconductor electrode film 7 of the photoelectrode substrate 2 are arranged to face each other, and the conductive catalyst material film 12 and the porous semiconductor electrode film are arranged. The electrolyte 4 is sealed between the two and the dye-sensitized solar cell 1 of the present embodiment is completed (see FIG. 1). In addition, as the electrolyte 4, a redox electrolyte solution containing an oxidation-reduction pair such as an iodine-iodine compound or a bromine-bromine compound can be usually used. In addition to the liquid electrolyte, an electrolyte solidified with a gelling agent or a P-type semiconductor (CuI) may be used as the electrolyte 4.

In the dye-sensitized solar cell 1 formed in this way, when sunlight enters the photoelectrode substrate 2 from the outside, the sensitizing dye adsorbed and supported on the porous semiconductor film 7 is excited, and the sensitizing dye Transition from the ground state to the excited state. The excited electrons of the sensitizing dye are injected into the conduction band of TiO ₂ constituting the porous semiconductor electrode film 7, move to the transparent electrode film 6, and pass through an external circuit (not shown) from the transparent electrode film 6. Then, it moves to the corrosion-resistant metal wire piece 11 of the counter electrode substrate 3. The electrons that have moved to the corrosion-resistant metal wire piece 11 move to the electrolyte 4 side through the conductive catalyst material film 12 and are carried by the ions in the electrolyte 4 to return to the sensitizing dye. Electric energy is extracted by repeating such an action.

  In the above-described embodiment, the entire surface of the corrosion-resistant metal wire piece 11 is covered with the conductive catalyst material film 12, but the portion of the corrosion-resistant metal wire piece 11 that contacts the electrolyte 4 is the conductive catalyst material film 12. It only has to be covered.

  Hereinafter, examples of the dye-sensitized solar cell and the method for manufacturing the same according to the present invention will be described in detail.

  First, a substrate member with ITO in which a transparent electrode film (ITO film) 6 made of ITO is formed on a substrate member 5 made of polyethylene naphthalate (PEN) (having a rectangular planar shape with a side length of 5 cm, A plate member having a thickness of 125 μm and an electric resistance value of 10Ω / □ was prepared. After applying a titania coating paste for low-temperature film formation to a thickness of 50 μm on the ITO film 6 of the substrate member with ITO, the film is heated at 150 ° C. for 5 minutes to have a thickness of 5 μm on the ITO film 6. A semiconductor electrode film 7 was formed, and then a ruthenium complex dye was adsorbed on the porous semiconductor electrode film 7. Thus, the photoelectrode substrate 2 in which the porous semiconductor electrode film 7 on which the sensitizing dye was adsorbed and supported was formed on the ITO film 6 was produced.

  In addition, a titanium wire having a diameter of 127 μm is installed as a corrosion-resistant metal wire in a vacuum apparatus using platinum as a target material, and the corrosion-resistant metal wire is wound with a reel and subjected to sputtering treatment with plasma generated by direct current discharge. Then, a conductive catalyst material film 12 made of platinum having a thickness of 50 nm was continuously formed on the corrosion-resistant metal wire. The ten corrosion-resistant metal wire pieces 11 covered with the conductive catalyst material film 12 in this way are separated from each other at equal intervals and substantially in parallel, and the opposing substrate member 8 (length of one side) made of polyethylene terephthalate (PET). Is placed on the counter substrate member 8 so as to extend along a plate-like member having a rectangular plane shape of 5 cm and a thickness of 125 μm. A part of each of the ten corrosion-resistant metal wire rods 11 covered with the film 12 was embedded in the counter substrate member 8. The sheet resistance of the conductive film as the counter electrode substrate 3 thus produced was 0.1Ω / □, and the transmittance was 79%.

  It arrange | positions so that the porous semiconductor electrode film 7 of the photoelectrode substrate 2 produced as mentioned above and the conductive catalyst material film 12 of the counter electrode substrate 3 may face each other, and the porous semiconductor electrode film 7 and the conductive catalyst material film 12 are arranged. Between them, a redox electrolyte solution was sealed as the electrolyte 4 to prepare the dye-sensitized solar cell 1 of the example.

The dye-sensitized solar cell 1 thus produced was irradiated with pseudo-sunlight having a light irradiation energy of 10 mW / cm ² using a solar simulator, and a battery characteristic test was performed. Further, as a comparative example, the same except that the counter electrode substrate 103 was used instead of the counter electrode substrate 3, that is, the conductive catalyst material film 112 made of platinum having a thickness of 50 nm was formed on the entire surface of the counter electrode substrate 103. A conventional dye-sensitized solar cell 101 shown in FIG. 6 was prepared so as to have the structure described above, and the same battery characteristic test was performed. The results are shown in FIG. FIG. 5 shows an experiment on current-voltage characteristics when the dye-sensitized solar cell 1 of the example and the dye-sensitized solar cell 101 of the comparative example are irradiated with light from the surface side (photoelectrode substrate side). The results are shown in comparison. In Table 1, Isc is a current (short-circuit current) flowing between both terminals when the output terminal of the dye-sensitized solar cell is short-circuited, and Voc is when the output terminal of the dye-sensitized solar cell is opened. Voltage between both terminals (open voltage); F. Is a value obtained by dividing the maximum output Pmax (= Imax · Vmax) by the product of the open circuit voltage Voc and the current density Jsc (short circuit current Isc per 1 cm ² ) (fill factor) FF = Pmax / Voc · Jsc ), Η represents a value (conversion efficiency) expressed as a percentage by multiplying 100 by a value obtained by dividing the maximum output Pmax by the irradiation light quantity (W) (per 1 cm ² ).

  As shown in FIG. 5 and Table 1, when light was irradiated from the surface side (photoelectrode substrate side) of the dye-sensitized solar cell 1 of the example and the dye-sensitized solar cell 101 of the comparative example, In the dye-sensitized solar cell 1 of the example, the short-circuit current is not so reduced as compared with the dye-sensitized solar cell 101 of the comparative example (in contrast to 0.752 mA in the comparative example, the example In the comparative example, the conversion factor does not decrease so much (3 in the comparative example). .39% compared to 2.63% in the example). On the other hand, when light is irradiated from the back side (counter electrode substrate side) of the dye-sensitized solar cell 1 of the example and the dye-sensitized solar cell 101 of the comparative example, the dye-sensitized solar cell of the comparative example In 101, since light is hardly transmitted, it does not generate electric power. However, in the dye-sensitized solar cell 1 of the example, since the plurality of corrosion-resistant metal wires 11 are arranged apart from each other, it is sufficient from the counter electrode substrate 3 side. It is possible to generate electricity by taking in light.

  A plurality of dye-sensitized solar cells each having a counter electrode substrate according to the present invention are connected in series, or a plurality of solar cell arrays connected in series are connected in parallel to form a dye-sensitized solar cell assembly. If desired, the desired electrical energy can be obtained. In addition, so-called see-through dye-sensitized solar cells can also be produced.

It is sectional drawing which shows typically embodiment of the dye-sensitized solar cell by this invention. It is sectional drawing which shows typically the counter electrode substrate of the dye-sensitized solar cell shown in FIG. It is a perspective view of the counter electrode substrate of the dye-sensitized solar cell shown in FIG. It is a figure explaining the manufacturing method of the counter electrode board | substrate of the dye-sensitized solar cell shown in FIG. It is a figure which compares and shows the experimental result about the electric current-voltage characteristic when light injects from the photoelectrode substrate side of the dye-sensitized solar cell of an Example and a comparative example. It is sectional drawing which shows the conventional dye-sensitized solar cell typically.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Dye-sensitized solar cell, 2 ... Photoelectrode substrate, 3 ... Counter electrode substrate, 4 ... Electrolyte, 5 ... Substrate member, 6 ... Transparent electrode film (ITO film), 7 ... Porous semiconductor electrode film, 8 ... Counter substrate member, 11 ... corrosion-resistant metal wire piece, 12 ... conductive catalyst material film

Claims (10)

In a dye-sensitized solar cell in which an electrolyte is sealed between a photoelectrode substrate having a porous semiconductor electrode film that adsorbs or carries a sensitizing dye and a counter electrode substrate, the counter electrode substrate includes a counter substrate member and A dye comprising: a corrosion-resistant metal wire and a conductive catalyst material film, wherein the corrosion-resistant metal wire is covered with the conductive catalyst material film and arranged so as to extend along the counter substrate member Sensitized solar cell. 2. The dye-sensitized solar cell according to claim 1, wherein a part of the corrosion-resistant metal wire is embedded in the counter substrate member. The said corrosion-resistant metal wire consists of several corrosion-resistant metal wire pieces, These several corrosion-resistant metal wire pieces are mutually arrange | positioned at predetermined intervals, It is characterized by the above-mentioned. Dye-sensitized solar cell. The dye-sensitized solar cell according to claim 3, wherein the plurality of corrosion-resistant metal wire pieces are arranged substantially parallel to each other. The dye-sensitized solar cell according to any one of claims 1 to 4, wherein the corrosion-resistant metal wire is a wire made of titanium. The dye-sensitized solar cell according to any one of claims 1 to 5, wherein the conductive catalyst material film is a film made of platinum. A step of preparing a photoelectrode substrate provided with a porous semiconductor electrode film that adsorbs or carries a sensitizing dye, a corrosion-resistant metal wire covered with a conductive catalyst material film, and a corrosion-resistant metal coated with the conductive catalyst material film A step of producing a counter electrode substrate by arranging the wire material so as to extend along the counter substrate member, and a step of arranging the photoelectrode substrate and the counter electrode substrate to face each other and enclosing an electrolyte therebetween. And a process for producing a dye-sensitized solar cell. In the step of manufacturing the counter electrode substrate, the corrosion-resistant metal wire coated with the conductive catalyst material film is disposed on the counter substrate member, and then coated with the conductive catalyst material film by applying pressure while heating. The method for producing a dye-sensitized solar cell according to claim 7, wherein a part of the corrosion-resistant metal wire thus formed is embedded in the counter substrate member. The method for producing a dye-sensitized solar cell according to claim 7 or 8, wherein the corrosion-resistant metal wire is a wire made of titanium. The method for producing a dye-sensitized solar cell according to any one of claims 7 to 9, wherein the conductive catalyst material film is a film made of platinum.

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