JP6267035B2 - Built-in structure of dye-sensitized solar cell and slat for power generation blind - Google Patents

Description

  The present invention relates to a built-in structure of a dye-sensitized solar cell and a slat for a power generation blind.

  In recent years, solar cells have attracted attention as clean energy power generation devices that replace fossil fuels, and development of silicon-based solar cells, dye-sensitized solar cells, organic thin-film solar cells, and the like is underway. In particular, since dye-sensitized solar cells have high photoelectric conversion efficiency and are inexpensive and easily mass-produced, their structures and manufacturing methods have been widely studied. In addition, while cost reduction of solar cells is actively performed all over the world, dye-sensitized solar cells are expected as next-generation solar cells.

  The dye-sensitized solar cell as described above is generally configured to include a photoelectrode, a counter electrode, and an electrolytic solution or an electrolyte layer. The photoelectrode includes at least a transparent conductive layer, a semiconductor layer, and a dye. It is common to comprise. In such a dye-sensitized solar cell, for example, when light is irradiated to the photoelectrode side, the dye adsorbed on the semiconductor layer absorbs light, and the electrons in the dye molecule are excited, and the electrons are converted into semiconductors. Passed to. Then, electrons generated on the photoelectrode side move to the counter electrode side through the external circuit, and the electrons return to the photoelectrode side through the electrolyte. By repeating such a process, electric energy is generated.

  In the background as described above, in recent years, it has been proposed to apply a dye-sensitized solar cell to a blind for awning (see, for example, Non-Patent Document 1). However, Non-Patent Document 1 does not disclose a specific configuration when the dye-sensitized solar cell is applied to the blind.

  Further, a structure in which a plurality of dye-sensitized solar cells are arranged on a blind blade (slat) has been proposed (see, for example, Patent Document 1). According to the technique described in Patent Document 1, a plurality of dye-sensitized solar cells 101 are mounted side by side on the surface of a blind slat 100 as shown in the schematic diagrams of FIGS. Although not shown here, each of the plurality of dye-sensitized solar cells 101 is electrically connected by connection.

  However, in the structure disclosed in Patent Document 1, the current generated in the dye-sensitized solar cell needs to flow in the longitudinal direction of the slats in the conductive substrate provided in the dye-sensitized solar cell. When the resistance value of the conductive substrate is high or when the slats are long in the longitudinal direction, there is a problem that the resistance loss of the current increases and the power generation performance decreases. In addition, as disclosed in Patent Document 1, when the dye-sensitized solar cell is arranged on the slat in an exposed state, it is suitable for practical use from the viewpoint of not only power generation performance but also durability and aesthetics. The situation was hard to say.

JP 2007-113365 A

NEDO Report (New Energy and Industrial Technology Development Organization); http: // www. nedo. go. jp / content / 100507018. pdf

  The present invention has been made in view of the above problems, and can generate power with a member having the same shape as that provided in a conventionally used facility, and has excellent power generation performance and durability. An object is to provide a built-in structure of a dye-sensitized solar cell excellent in aesthetic characteristics and a slat for a power generation blind to which this built-in structure is applied.

The invention according to claim 1 is a dye-sensitized solar cell built-in structure, and includes a dye-sensitized solar cell having at least a photoelectrode and a counter electrode provided to face the photoelectrode. , it has a structure that interposed between the pair of substrates, the inner surface side of the pair of substrates are a conductive layer having conductivity, the photoelectrode, a conductive resin substrate In addition, a semiconductor layer and a dye are laminated in this order, and the counter electrode is formed by laminating a catalyst layer on a metal foil, and the conductive layer and the conductive layer provided on one of the pair of base materials. by and the sex resin substrate is connected, the conductive layer and the front Kihikariden poles are electrically connected, the conductive layer provided in the other of the pair of the base materials and said metal foil by being surface connected, and the conductive layer and the counter electrode is electrically connected Iruko The features.

According to the present invention, the dye-sensitized solar cell has a structure inserted between a pair of base materials, and a photoelectrode or a counter electrode is connected to a conductive layer provided on at least one of the pair of base materials. With this configuration, it is possible to generate power with light using a member having the same shape as that provided in an existing facility. In addition, a conductive layer is arranged on the inner surface side of the substrate, and the electrode provided in the dye-sensitized solar cell is connected to the conductive layer, so that the current generated in the dye-sensitized solar cell is supplied to the outside through the conductive layer. The resistance when generated is reduced and the power generation performance is improved.
Furthermore, by having a structure in which the dye-sensitized solar cell is interposed between the pair of substrates, the periphery of the dye-sensitized solar cell and further the dye-sensitized solar cell is sealed with the pair of substrates. Since it can stop, durability with respect to a wind and rain, an installation atmosphere, etc. improves. In addition, since the dye-sensitized solar cell is covered with a pair of base materials, it has excellent aesthetic characteristics.
Furthermore, in particular, the contact resistance between the conductive layer and the conductive layer in the counter electrode of the dye-sensitized solar cell is made of a metal foil, so that the contact resistance with the conductive layer is reduced, so that the power generation performance described above is improved. This effect can be obtained more remarkably. Moreover, by using a conductive resin substrate or a metal foil for each electrode, the total film thickness of the dye-sensitized solar cell is reduced, and the aesthetic characteristics when applied to blinds, awnings and the like are improved.

  The invention according to claim 2 is the built-in structure of the dye-sensitized solar cell according to claim 1, wherein at least a part of the base material in contact with the photoelectrode side of the pair of base materials. Further, an opening for light transmission is formed.

  According to the present invention, the opening is formed in at least a part of the base material in contact with the photoelectrode side. For example, even when the pair of base materials are made of a light-shielding film or the like, Since light can be efficiently incident on the photoelectrode of the solar cell, it is possible to achieve both excellent power generation performance and aesthetic characteristics.

  The invention described in claim 3 is the structure for incorporating the dye-sensitized solar cell described in claim 2, wherein a transparent substrate covering the opening is provided.

  According to the present invention, since a transparent substrate covering the opening is provided on the base material, the dye-sensitized solar cell can be reliably sealed between the pair of base materials, and thus has excellent durability. Can be secured.

  The invention according to claim 4 is the built-in structure of the dye-sensitized solar cell according to any one of claims 1 to 3, wherein the sheet resistance of the conductive layer is applied to the conductive layer. The sheet resistance of the photoelectrode or the counter electrode to be connected is smaller.

  According to the present invention, the sheet resistance of the conductive layer is configured to be smaller than the sheet resistance of the photoelectrode or the counter electrode connected to the conductive layer, so that the current generated in the dye-sensitized solar cell is the conductive layer. As a result, the resistance when being supplied to the outside through the power is more effectively reduced, and the power generation performance is further improved.

Invention of Claim 5 is a slat for electric power generation blinds, Comprising: It has the built-in structure of the dye-sensitized solar cell as described in any one of Claims 1-4. And

  According to the present invention, since it is a slat for power generation blinds to which the built-in structure of the dye-sensitized solar cell having the above-described structure is applied, it has excellent power generation performance as well as excellent durability and aesthetic characteristics.

According to the built-in structure of the dye-sensitized solar cell according to the present invention, the following effects can be obtained by the above-described solving means.
That is, according to the present invention, the dye-sensitized solar cell has a structure interposed between a pair of base materials, and the photoelectrode or the counter electrode is provided on the conductive layer provided on at least one of the pair of base materials. Are connected, it becomes possible to perform power generation by light with a member having the same shape as that provided in an existing facility. In addition, since the electrode provided in the dye-sensitized solar cell is connected to the conductive layer disposed on the inner surface side of the substrate, the current generated in the dye-sensitized solar cell is supplied to the outside through the conductive layer. Resistance is reduced, and power generation performance is improved. Further, since the dye-sensitized solar cell is interposed between a pair of base materials, the dye-sensitized solar cell and further the periphery of the dye-sensitized solar cell is sealed with a pair of base materials Thus, the durability is improved and the aesthetic characteristics are also improved because the dye-sensitized solar cell is covered with a pair of base materials.
Therefore, by applying the above structure to a member provided in a conventionally used facility, it is possible to realize a built-in structure of a dye-sensitized solar cell that is excellent in power generation performance and excellent in durability and aesthetic characteristics. There is an effect.

  Moreover, according to the slat for power generation blinds according to the present invention, since it is a slat for power generation blinds to which the built-in structure of the dye-sensitized solar cell having the above-described configuration is applied, it has excellent power generation performance and durability and aesthetic characteristics. It is possible to construct a blind.

It is a figure explaining the built-in structure of the dye-sensitized solar cell which is one Embodiment of this invention, FIG.1 (a) is the perspective view which decomposed | disassembled one part, FIG.1 (b) is FIG. 1 in an assembly state. It is AA sectional drawing shown in (a). It is a figure explaining the example which applied this built-in structure to the slat for electric power generation blinds about the built-in structure of the dye-sensitized solar cell which is one Embodiment of this invention, and is shown to FIG. 1 (a), (b) It is a top view which shows the example which applied the incorporation structure of the dye-sensitized solar cell shown to the integration of the dye-sensitized solar cell to the elongate blind. It is a figure which shows the attachment structure of the conventional dye-sensitized photovoltaic cell, Fig.3 (a) is a perspective view, FIG.3 (b) is BB sectional drawing shown in Fig.3 (a).

  1 and 2 for an embodiment of a dye-sensitized solar cell built-in structure according to the present invention and a power generation blind slat to which the built-in structure is applied according to the present invention with reference to the drawings. The configuration will be described with reference to FIG. Note that the drawings used in the following description may show the characteristic parts in an enlarged manner for the sake of convenience in order to make the characteristics easy to understand. There is. In addition, the materials, dimensions, and the like exemplified in the following description are examples, and the present invention is not limited to them, and can be appropriately changed and implemented without changing the gist thereof.

<Dye-sensitized solar cell built-in structure (slat for power generation blinds)>
The dye-sensitized solar cell built-in structure A of this embodiment includes at least a photoelectrode 10 and a counter electrode provided to face the photoelectrode 10 as shown in FIGS. 20 has a structure in which a dye-sensitized solar cell 1 having a structure 20 is interposed between a pair of base materials 5 (5A, 5B). And the built-in structure A of the dye-sensitized solar cell of this embodiment is the inner surface 5b side of at least one of the pair of base materials 5A and 5B, both inner surfaces of the pair of base materials 5A and 5B in the illustrated example. Reference numeral 5b denotes a conductive layer 51 having conductivity. The conductive layer 51, the photoelectrode 10 and the counter electrode 20 are electrically connected to each other and are roughly configured. In the illustrated example, the conductive resin substrate 11 provided in the photoelectrode 10 and the conductive resin substrate 21 provided in the counter electrode 20 are provided on the inner surface 5b side of the pair of base materials 5A and 5B, respectively. The conductive layer 51 is electrically connected by connecting portions 6A and 6B.

  Moreover, in this embodiment, the group by which the dye-sensitized solar cell 1 inserted between a pair of base material 5A, 5B was provided in the peripheral part vicinity by planar view of a pair of base material 5A, 5B. It is sealed by the embedded sealing material 7. In the partially exploded perspective view of FIG. 1A, the built-in sealing material 7 is not shown for the sake of illustration.

  In addition, the dye-sensitized solar cell built-in structure A shown in FIGS. 1A and 1B has a dye-sensitized solar cell built-in structure A which is a short dye-sensitized solar cell for convenience of illustration. The battery cell 1 is shown in a state provided in one place. Here, as shown in FIG. 2, when the built-in structure A of the dye-sensitized solar cell is configured to be long, the pair of base materials 5A and 5B are configured to be long, and further dye-sensitized. The solar battery cell 1 can also be configured to be long. Alternatively, in the present embodiment, a plurality of short dye-sensitized solar cells 1 may be arranged between the pair of base materials 5A and 5B. In this case, each of the dye-sensitized solar cells 1 Can be electrically connected to each other by the conductive layer 51 provided on the pair of base materials 5A and 5B, so that the plurality of dye-sensitized solar cells 1 are not connected by wiring. , Electrical connection becomes possible.

The built-in structure A of the dye-sensitized solar cell according to the present embodiment has a shape similar to that of a conventional slat, for example, as shown in FIG. A blind can be formed using the built-in structure A of the dye-sensitized solar cell. Moreover, the built-in structure A of such a dye-sensitized solar cell can be used as a blind as in the prior art, so that photovoltaic power generation can be performed at a building or a window in a house where the installation is made. That's it. Further, the dye-sensitized solar cell built-in structure A of the present embodiment is used as a blind as shown in the illustrated example, for example, a roof of a vinyl house, a ceiling plate of a garage, a sunshade, an awning, a car Even when applied to a port, a wall surface of a building, etc., as in the above, photovoltaic power generation becomes possible while exhibiting normal functions.
Below, each structure which comprises the built-in structure A of a dye-sensitized solar cell is explained in full detail.

[Dye-sensitized solar cell]
As described above, the dye-sensitized solar cell 1 includes at least the photoelectrode 10 and the counter electrode 20 disposed to face the photoelectrode 10 so as to have a certain thickness dimension. Further, in FIGS. 1A and 1B, an electrolyte 30 is provided between the photoelectrode 10 and the counter electrode 20, and the electrolyte 30 is sealed with a cell sealing material 40.

(Photoelectrode)
As in the example shown in FIGS. 1A and 1B, the photoelectrode 10 is formed by laminating a conductive resin substrate 11, a semiconductor layer 12, and a dye 13 in this order. In the illustrated example, the conductive resin substrate 1 of the photoelectrode 10 is on the upper side and is disposed to face one of the base materials 5A. Further, the conductive resin substrate 11 in the illustrated example is configured by laminating a conductive material layer 11b on the surface of the transparent base material 11a, and is overlapped with the conductive layer 51 provided on the inner surface 5b side of one base material 5A. At the same time, the conductive material layer 11b is electrically connected to the conductive layer 51 by the connecting portion 6A.

  The conductive resin substrate 11 is a transparent member that becomes the substrate of the photoelectrode 10 and has conductivity, and is applicable to the manufacture and use of a photosensitized solar cell or the like in which the photoelectrode and the photoelectrode are used, And if it is comprised with the material transparent with respect to visible light, the material etc. will not be specifically limited. For example, it is preferable to use a film substrate made of a transparent conductive resin material as the conductive resin substrate 11 from the viewpoint of increasing the degree of freedom of installation in a place having a curved portion, an uneven portion, or the like. Examples of such a resin material include ITO (tin-doped indium oxide), FTO (fluorine-doped tin oxide), ATO (antimony-doped tin oxide), GZO (gallium-doped zinc oxide), and AZO (aluminum-doped zinc oxide). And a conductive material layer 11b formed on a transparent substrate 11a made of a resin such as PET, PEN, polycarbonate, or acrylic. In addition, as the conductive resin substrate 11, a metal or an alloy such as silver, copper, aluminum, iron, titanium, stainless steel, nickel, manganese, zinc or the like is used as a mesh to form a conductive material layer 11b. Examples thereof include a film formed on the transparent substrate 11a. By using such a resin material for the conductive resin substrate 11, it is possible to manufacture a dye-sensitized solar cell or the like using a light, thin and flexible photoelectrode.

  As described above, the conductive resin substrate 11 can have a configuration in which the conductive material layer 11b is laminated on the surface of the transparent base material 11a. In this case, as shown in FIG. In addition, the conductive material layer 11b and the conductive layer 51 can be electrically connected by connecting them with the connection portion 6A.

The semiconductor layer 12 constituting the photoelectrode 10 is formed on the conductive resin substrate 11, and the material thereof is not particularly limited. Conventionally, it can be used as a photoelectrode of a dye-sensitized solar cell capable of adsorbing the dye 13 described later. The semiconductor material used can be used without any limitation. As such a semiconductor material, for example, a porous material made of a metal oxide such as titanium oxide (TiO ₂ ), zinc oxide (ZnO), or strontium titanate (SrTiO ₃ ) can be used.

  When the semiconductor layer 12 is composed of metal oxide semiconductor fine particles, the semiconductor layer 12 may be formed by firing a known paste containing fine particles on the conductive resin substrate 11. Alternatively, the semiconductor layer 12 may be configured as a porous structure formed in a state in which the fine particles of the metal oxide semiconductor are bonded to each other by spraying the fine particles of the metal oxide semiconductor onto the conductive resin substrate 11 with a carrier gas. Examples of the method for forming the porous semiconductor layer 12 by spraying metal oxide semiconductor fine particles on the conductive resin substrate 11 as described above include an aerosol deposition method (AD method).

  Here, the primary particle diameter of the metal oxide semiconductor fine particles constituting the semiconductor layer 12 may vary in a suitable range depending on the method of forming the fine particles on the conductive resin substrate 11. 1 nm to 500 μm are preferable, 1 nm to 250 μm are more preferable, 5 nm to 100 μm are further preferable, and 10 nm to 10 μm are particularly preferable. In addition, as a method for obtaining the primary particle diameter of the metal oxide semiconductor fine particles, for example, a method of determining from the peak value of the volume average diameter distribution obtained by measurement using a laser diffraction particle size distribution measuring device, or SEM Examples include a method of measuring the dimension in the major axis direction of a plurality of fine particles by observation and then calculating an average value thereof. Of these, the primary particle diameter of the metal oxide semiconductor fine particles is preferably measured by SEM observation.

  The semiconductor layer 12 preferably has a porous structure. As described above, at least the surface of the semiconductor layer 12 has a porous structure, so that an area capable of adsorbing the dye 13 (described later) on the semiconductor layer 12 is increased, and the amount of the dye adsorbed can be increased. it can. Thereby, conversion efficiency improves and it becomes possible to obtain a high battery characteristic.

  The dye 13 is a layer made of a sensitizing dye that is formed so as to be adsorbed to the semiconductor layer 12 in the photoelectrode 10. The dye 13 is excited by the irradiated light and has an action of emitting electrons. The electrons emitted from the dye 13 are transferred to the semiconductor layer 12 having a wide band gap, and diffuse in the semiconductor layer 12 and smoothly move to the conductive resin substrate 11.

  The dye 13 constituting the photoelectrode 10 is preferably provided so as to be adsorbed to the semiconductor layer 12, and formed so that the surface of the semiconductor layer 12 (including the inner surface) is covered with the dye 13. Is preferred.

  As described above, examples of the dye 13 that emits electrons when irradiated with light include organic dyes such as a ruthenium complex, cyanine, and chlorophyll. Further, as the dye 13, a ruthenium complex is preferable because it has a wide absorption wavelength range, has a long lifetime of photoexcitation, and stabilizes electrons transferred to the semiconductor layer 12, more specifically, Cis-di (thiocyanato) -bis (2,2′-bipyridyl-4,4′-dicarboxylic acid) ruthenium (II) (sometimes referred to as N3), cis-di (thiocyanato) -bis (2,2 Bis-tetrabutylammonium salt of '-bipyridyl-4,4'-dicarboxylic acid) ruthenium (II) (sometimes called N719), tri (thiocyanato)-(4,4', 4 ''-tricarboxy- 2,2 ′: 6 ′, 2 ″ -terpyridine) ruthenium tris-tetrabutylammonium salt and the like are preferred.

(Counter electrode)
1A and 1B, the counter electrode 20 is configured by laminating a catalyst layer 22 on a conductive resin substrate 21, and in the illustrated example, the conductive resin of the counter electrode 20 is configured. The board | substrate 21 is made into the lower side and is arrange | positioned facing the other base material 5B. In addition, the conductive resin substrate 21 in the illustrated example is configured by laminating a conductive material layer 21b on the surface of the base material 21a, and is superimposed on the conductive layer 51 provided on the inner surface 5b side of the other base material 5B. The conductive material layer 21b is electrically connected to the conductive layer 51 by the connection part 6B.

  The conductive resin substrate 21 is a member that serves as a base for the counter electrode 20, and the material is not particularly limited as long as the conductive resin substrate 21 is made of a material that can be applied to manufacture and use of the dye-sensitized solar cell 1. From the viewpoint that both sides of the photoelectrode 10 and the counter electrode 20 can be received, as in the case of the photoelectrode 10 described above, it is made of a transparent member having conductivity and is transparent to visible light. Is preferred. Further, like the conductive resin substrate 11 provided in the photoelectrode 10, the conductive resin substrate 21 is made of a transparent conductive resin material from the viewpoint of increasing the degree of freedom of installation in a place having a curved portion or an uneven portion. It is preferable to use a film substrate such as, for example, a conductive material layer 21b made of ITO, FTO, ATO, GZO, or AZO formed on a substrate 21a made of a resin such as PET, PEN, polycarbonate, or acrylic. Is mentioned. In addition, as the conductive resin substrate 21, a metal or an alloy such as silver, copper, aluminum, iron, titanium, stainless steel, nickel, manganese, zinc or the like is used as a mesh to form a conductive material layer 21b. Examples thereof include a film formed on the base material 21a.

  By using the resin material as described above for the conductive resin substrate 21, it is possible to manufacture a dye-sensitized solar cell using a light, thin and flexible photoelectrode.

  Further, the conductive resin substrate 21 is not necessarily required to have transparency. For example, a metal such as iron, aluminum, stainless steel, copper, silver, titanium, platinum, gold, molybdenum, manganese, chromium, nickel, etc. Alternatively, the conductive material layer 21b made of an alloy is formed on a base material 23 made of a resin such as PET, PEN, polycarbonate, or acrylic, and the metal foil made of the metal material is replaced with the conductive resin substrate 21. Can also be used.

Here, as the base material 21a, for example, when the same material as the transparent base material 11a used for the photoelectrode 10 is used, the conductive resin substrate 21 and the conductive layer 51 are connected by the connecting portion 6B. Thus, these can be electrically connected. On the other hand, when a conductive material such as a metal foil is used for the base material 21a, the conductive resin substrate 21 and the conductive layer 51 are electrically connected without using the connection part 6B. That is, in this case, since the conductive resin substrate 21 and the conductive layer 51 are directly electrically connected, the contact resistance is reduced. Thereby, since the electric current generated in the dye-sensitized solar cell 1 can be efficiently sent to the outside, the effect of improving the power generation performance can be obtained more remarkably.
In addition, when using metal foil for the base material 21a of the conductive resin substrate 21 or when using metal foil instead of the conductive resin substrate 21, for example, a metal foil made of a metal material having a thickness of 300 μm is employed. be able to.

  The catalyst layer 22 is formed on the plate surface of the conductive resin substrate 21 by, for example, a sputtering method or a printing method. As the catalyst layer 22, a material having catalytic ability for a redox reaction of the electrolyte 30 described later is selected. For example, in addition to a metal catalyst such as gold (Au) or platinum (Pt), carbon nanotubes, graphite Examples thereof include conductive carbon such as (graphite) and conductive polymers such as polyaniline, polypyrrole, and polythiophene. Alternatively, the catalyst layer 22 may be formed by depositing a conductive ITO film or FTO film on the surface of the conductive resin substrate 21 and then depositing a metal catalyst such as Pt thereon. Is possible.

  The conductive resin substrate 21 and the catalyst layer 22 do not have to be transparent with respect to the light applied to the dye-sensitized solar cell. For example, from the viewpoint of ensuring the degree of freedom in the light irradiation direction, the conductive resin substrate 21 and the catalyst layer 22 are transparent. Preferably there is.

(Electrolytes)
The electrolyte 30 is filled in a space surrounded by the cell sealing material 40 between the photoelectrode 10 and the counter electrode 20. In the dye-sensitized solar cell 1, the electrolyte 30 is made of a substance including a redox pair that causes a redox reaction for continuously flowing electricity. Examples of such a redox pair include iodine redox. Examples of the electrolyte 30 containing iodine redox include non-aqueous solvents such as acetonitrile and propionitrile, or ionic liquids such as dimethylpropylimidazolium iodide and butylmethylimidazolium iodide, and lithium iodide and iodine. A solution in which is mixed is used. Further, the electrolyte 30 may contain other additives such as a filler and a thickener within a range not departing from the gist of the present invention.

The concentration of the redox couple in the electrolyte 30 is not particularly limited. However, when the electrolyte 30 is a liquid electrolyte, it is preferably 0.1 to 10 mol / L, more preferably 0.2 to 2 mol / L. It is. Moreover, the preferable range of the iodine concentration in the case of adding iodine to the solvent of the electrolyte 30 is 0.01 to 1 mol / L.
Further, the electrolyte 30 may contain a conventionally known conductive polymer.

  In the present embodiment, a semi-solid (gel) or solid material may be used for the electrolyte 30 instead of the liquid electrolyte. As such an electrolyte 30, for example, a gelling agent or a thickening agent may be added to the electrolytic solution, and the solvent may be removed as necessary, so that the electrolytic solution is gelled or solidified. Thus, instead of the liquid electrolyte, the gel-like or solid electrolyte 30 is used, so that the electrolytic solution can be obtained from the dye-sensitized solar cell 1, and thus the built-in structure A of the dye-sensitized solar cell. The risk of leakage is eliminated.

(Cell sealing material)
The cell sealing material 40 is preferably a member that can hold the electrolyte 30 inside the battery cell. As such a cell sealing material 40, what consists of synthetic resins, such as a conventionally well-known thermoplastic resin, a thermosetting resin, and an ultraviolet curable resin, can be applied, for example.

[Built-in structure]
As described above, the dye-sensitized solar cell built-in structure A of the present embodiment has a pair of dye-sensitized solar cells 1 having the above-described configuration as shown in FIGS. 1 (a) and 1 (b). It has a structure inserted between the materials 5A and 5B. The built-in structure A of the dye-sensitized solar cell has a conductive layer 51 having conductivity on at least one inner surface 5b side of the pair of base materials 5A and 5B. The conductive layer 51 and the photoelectrode 10 and the counter electrode 20 are electrically connected.

(A pair of base materials)
The pair of base materials 5A and 5B described in the present embodiment can be made of, for example, a film-like transparent resin material and the like, and function as a support substrate or a housing in the built-in structure A of the dye-sensitized solar cell. To do. Further, the pair of base materials 5A and 5B is provided in an existing facility exemplified by blind slats, roofs of vinyl houses, garage ceilings, sunshades, awnings, carports, building walls, and the like. By being configured as a plate-like member similar to the above, the built-in structure A of the dye-sensitized solar cell can be applied to each of the above locations.

  As a material which makes a pair of base materials 5A and 5B, the same thing as the existing member to which the built-in structure A of a dye-sensitized solar cell as illustrated above is applied can be used, for example, transparent Thus, a resin material having heat resistance, weather resistance, etc. can be used without any limitation. As such a material, for example, in addition to the film-like transparent resin material described above, opaque resin materials such as vinyl chloride, and metals such as aluminum, stainless steel, nickel, magnesium, manganese, gold, silver, copper, and titanium thin plate Various materials such as boards and trees can be exemplified.

  In the built-in structure A of the dye-sensitized solar cell exemplified in this embodiment, as shown in FIGS. 1A and 1B, the pair of base materials 5A and 5B is in contact with the photoelectrode 10 side. An opening 52 for light transmission is formed in the vicinity of the approximate center of the one base material 5A. In addition, in the long dye D-sensitized solar cell built-in structure A shown in FIG. 2, an opening 52 that is elongated in the longitudinal direction is formed in the vicinity of the center in the width direction of one base material 5A. Is provided.

Thus, by forming the opening 52 in at least a part of the base material (one base material 5A) in contact with the photoelectrode 10 side, for example, the pair of base materials 5A and 5B is made of a light-shielding film or a metal. Even in the case of a plate or the like, light can be efficiently incident on the photoelectrode 10. Thereby, even if it is a case where the built-in structure A of a dye-sensitized solar cell is applied to a light shielding member, while being able to maintain the outstanding electric power generation performance, the outstanding aesthetic property is also acquired.
When the pair of base materials 5A and 5B is made of a transparent material, the opening 52 is not essential, but there is no particular problem even if the opening 52 is provided.

Furthermore, in this embodiment, as shown in FIG.1 (b), it is more preferable that the transparent substrate 53 which covers the opening part 52 is provided on one base material 5A. In the illustrated example, a transparent substrate 53 is provided on the outer surface 5a side of one base material 5A, and this transparent substrate 53 is formed on one substrate by a sealing dam portion 54 made of a thermoplastic resin or a thermosetting resin. It is fixed on the material 5A.
Thus, since the transparent substrate 53 covering the opening 52 is provided, the dye-sensitized solar cell 1 can be reliably sealed between the pair of base materials 5A and 5B. Can be secured. In the partially exploded perspective view of FIG. 1A, the sealing weir portion 54 and the transparent substrate 53 are not shown for convenience of illustration.

  In the present embodiment, a conductive material is provided on the inner surface 5b side of one of the pair of base materials 5A and 5B, on the inner surface 5b side of both the pair of base materials 5A and 5B in the example shown in FIGS. A conductive layer 51 made of is provided. As described above, the conductive layer 51 is electrically connected to each electrode of the dye-sensitized solar cell 1 so that the current generated in the dye-sensitized solar cell 1 can be transmitted to the outside. For example, in the built-in structure A of the long dye-sensitized solar cell shown in FIG. 2, the current can be taken out from any position in the long direction.

  The material used for the conductive layer 51 is not particularly limited as long as it is a metal material having high conductivity and low sheet resistance. For example, a metal material made of titanium or the like is sputtered. Can be formed by depositing on the inner surfaces 5b of the pair of substrates 5A, 5B.

  In the present embodiment, the sheet resistance of the conductive layer 51 is smaller than the sheet resistance of the photoelectrode 10 or the counter electrode 20 connected to the conductive layer 51, that is, the sheet resistance of the conductive resin substrate 11 or the conductive resin substrate 21. It is preferable. Thus, by setting the sheet resistance of the conductive layer 51 to be smaller than the sheet resistance of the conductive resin substrate 11 or the conductive resin substrate 21, the current generated in the dye-sensitized solar cell 1 can be converted into the conductive layer 51. As a result, the resistance when being supplied to the outside through the power can be more effectively reduced, and the power generation performance can be further improved.

For example, in the case where the pair of base materials 5A and 5B is made of a conductive material such as a metal material, since each base material itself has conductivity, the dye is provided without providing the conductive layer 51. It may be possible to collect current from the sensitized solar cell 1. As such a case, for example, the dye-sensitized solar cell built-in structure A according to the present invention is applied to a blind slat, and the slat is made of a metal material. A case where no coating is applied to the inner surface side to be sandwiched is mentioned. However, even when the pair of base materials 5A and 5B is made of a metal material, by providing a conductive layer made of a conductive material having high conductivity and low sheet resistance on the inner surface 5b side, the base material body As compared with the case where current collection is performed by imparting electrical conductivity to the metal, the resistance is reduced, and the power generation performance is remarkably improved.
In addition, when the pair of base materials 5A and 5B is made of a metal material having no transparency, it is essential to provide the opening 52 described above.

(Connection section)
In the built-in structure A of the dye-sensitized solar cell of the present embodiment, as in the example shown in FIGS. 1A and 1B, the electrical connection of the photoelectrode 10 and the counter electrode 20 to the conductive layer 51 is performed. Are connected to the conductive material layer 11b provided in the conductive resin substrate 11 and the conductive material layer 21b provided in the conductive resin substrate 21 and the conductive layer 51 via the connection portions 6A and 6B, respectively. Is going on. On the other hand, in the present embodiment, as described above, when the base material 21a provided on the counter electrode 20 is made of a conductive material such as a metal foil, an electric power is directly connected between the counter electrode 20 and the conductive layer 51. Since a general connection is achieved, the connection part 6B becomes unnecessary.

  As the connection parts 6A and 6B as described above, wires conventionally used in this field can be employed.

  In the present embodiment, the current generated in the dye-sensitized solar cell 1 is obtained by connecting the conductive resin substrate 11 and the conductive resin substrate 21 and the conductive layer 51 with the connection portions 6A and 6B, respectively. The resistance at the time of sending out is further reduced, and the effect of further improving the power generation performance can be obtained.

  Moreover, in this embodiment, even if it is a case where each base material with which the photoelectrode 10 and the counter electrode 20 are provided is a base material which does not have electroconductivity, said connection part 6A, 6B is used as a photoelectrode. 10 and the counter electrode 20 and the conductive layer 51 are appropriately wired, so that the current generated in the dye-sensitized solar cell 1 can be reliably transferred to the conductive layer 51.

(Built-in sealing material)
In the built-in structure A of the dye-sensitized solar cell of the present embodiment, as shown in FIGS. 1A and 1B, the dye-sensitized solar cell is provided in the vicinity of the peripheral edge in a plan view of the pair of base materials 5A and 5B. And the built-in sealing material 7 inserted between a pair of base materials 5A and 5B is provided. The built-in structure A of the dye-sensitized solar cell is configured such that the dye-sensitized solar cell 1 can be sealed between the pair of base materials 5A and 5B by providing such a built-in sealing material 7. Has been.

  As the material of the built-in sealing material 7, the same material as the cell sealing material 40 used for sealing the electrolyte 30 in the dye-sensitized solar cell 1 can be used. For example, a conventionally known thermoplastic resin Or a synthetic resin such as a thermosetting resin or an ultraviolet curable resin can be applied.

[Production method]
When manufacturing the dye-sensitized solar cell 1 having the above-described configuration and the built-in structure A of the dye-sensitized solar cell, for example, the following method can be used.

First, by using the AD method described above, the semiconductor layer 12 is formed by laminating TiO ₂ on the conductive resin substrate 11, and then the dye 13 is further adsorbed on the semiconductor layer 12 by a conventional method. The photoelectrode 10 is produced.
Moreover, the counter electrode 20 is produced by laminating platinum (Pt) on the conductive resin substrate 21 and forming the catalyst layer 22 on the conductive resin substrate 21 by a sputtering method.
Thereafter, the electrolyte 30 is disposed between the photoelectrode 10 and the catalyst layer 22 formed on the conductive resin substrate 21 and sealed with the cell sealing material 40, thereby the dye-sensitized solar cell 1. Manufacturing.

Further, a conductive layer 51 having conductivity is formed by laminating a metal material on one surface of a pair of base materials 5A and 5B made of a transparent resin material or the like.
Then, the dye-sensitized solar cell is formed such that the outer surface 5a of the other base material 5B is on the lower side and the conductive resin substrate 21 provided in the counter electrode 20 is superimposed on the inner surface 5b, that is, on the conductive layer 51. Cell 1 is placed and connected. Thereafter, one base material 5A is overlaid so as to connect the conductive layer 51 on the conductive resin substrate 11 provided in the photoelectrode 10 of the dye-sensitized solar cell 1, and fixed and sealed by the built-in sealing portion 7. Stop.
In addition, the connection part 6A, 6B for connecting the conductive resin board | substrate 11, the conductive resin board | substrate 21, and each conductive layer 51 is attached as needed.

  By the method exemplified above, the dye-sensitized solar cell 1 has a structure inserted between the pair of base materials 5A and 5B, and the inner surface 5b side of the pair of base materials 5A and 5B is conductive. And manufacturing the built-in structure A of the dye-sensitized solar cell according to this embodiment, in which the conductive layer 51 is electrically connected to the photoelectrode 10 and the counter electrode 20. it can.

[Use of dye-sensitized solar cell built-in structure]
The built-in structure A of the dye-sensitized solar cell having the above-described configuration can be easily applied to a member provided in a conventionally used facility by being configured to be long as in the example shown in FIG. become. In this case, from the viewpoint of power generation efficiency by light, it is mainly applied to a member in an environment exposed to sunlight or illumination light. As such a member, for example, a blind slat, a roof portion of a vinyl house, etc. Garage ceilings, sunshades, awnings, carports, building walls and the like. On the other hand, the dye-sensitized solar cell 1 can exhibit sufficient performance even under circumstances that are inherently disadvantageous for power generation, such as a place or a wall that is shaded by sunlight, and thus, a dye-sensitized solar cell. The application target of the cell built-in structure A is diverse.

  Here, when the built-in structure A of a long dye-sensitized solar cell as shown in FIG. 2 is applied to, for example, a blind installed near a window of a building or a house, a plurality of slats (dyes Sunlight is applied to the built-in structure A) of the sensitized solar cell to obtain a light shielding effect by the slat, and at the same time, photovoltaic power generation is performed by the dye-sensitized solar cell 1 incorporated in the slat. And the electric current which generate | occur | produced in the dye-sensitized solar cell 1 is taken out outside through the conductive layer 51 inside a slat, resistance is reduced, and efficient current collection is attained.

The reason why the resistance when taking out the current generated in the dye-sensitized solar cell 1 is reduced by applying the built-in structure A of the dye-sensitized solar cell according to the present invention is as follows. Can be considered.
First, the conductive resin substrate 21 provided in each of the counter electrodes 20 is connected to the conductive layer 51 in a plane to increase the contact area and sufficiently reduce the contact resistance.
In addition, in the built-in structure A of the dye-sensitized solar cell that is long, the conductive resin substrate 21 and each conductive layer 51 are connected in a plane, so that in many places on this connection surface, Another example is that the current generated in the dye-sensitized solar cell 1 is transferred.

Moreover, by setting the sheet resistance of the conductive layer 51 to be lower than the sheet resistance of the conductive resin substrate 11 and the conductive resin substrate 21, the resistance between them can be further reduced, and the power generation performance is further improved.
Furthermore, by having the structure in which the dye-sensitized solar cell 1 is interposed between the pair of base materials 5A and 5B, the periphery of the dye-sensitized solar cell 1 is sealed with the pair of base materials 5A and 5B. As a result, durability against wind and rain, installation atmosphere, etc. is improved.

  In addition, the dye-sensitized solar cell built-in structure A according to the present invention has the dye-sensitized solar cell 1 sandwiched between the pair of base materials 5A and 5B, and the peripheral portion is the built-in sealing material 7. Since it is sealed, it is double sealed together with the sealing structure of the dye-sensitized solar cell 1 itself, and high durability is obtained.

  Moreover, when the built-in structure A of the dye-sensitized solar cell according to the present invention is applied to the blind which is a light-shielding member, the dye-sensitized solar cell 1 is covered by the pair of base materials 5A and 5B and is visually recognized from the outside. Since it is in a state where it cannot be performed or only the photoelectrode 10 is visible from the opening 52, an effect of improving the aesthetic characteristics can be obtained.

  In the present embodiment, for example, instead of the dye-sensitized solar cell 1 described above, even when a configuration in which an organic thin-film solar cell is interposed between a pair of base materials is employed, as described above. In addition, the power generation performance is improved and the durability and aesthetic characteristics are also improved.

<Effect>
As described above, the dye-sensitized solar cell built-in structure A according to the present invention has a structure in which the dye-sensitized solar cell 1 is interposed between the pair of base materials 5A and 5B. In addition, since the photoelectrode 10 or the counter electrode 20 is connected to the conductive layer 51 provided on at least one of the pair of base materials 5A and 5B, the light having a shape similar to that provided in an existing facility is used. It becomes possible to generate electricity by. Moreover, since it is the structure which connects the electrode with which the dye-sensitized solar cell 1 is equipped to the conductive layer 51 arrange | positioned at the inner surface 5b side of base material 5A, 5B, the electric current which generate | occur | produced in the dye-sensitized solar cell 1 is a conductive layer. Resistance when supplied to the outside through 51 is reduced, and power generation performance is improved. Further, since the dye-sensitized solar cell 1 is interposed between the pair of base materials 5A and 5B, the dye-sensitized solar cell 1 and the periphery of the dye-sensitized solar cell 1 are paired with a pair of bases. It can be sealed with the materials 5A and 5B, the durability is improved, and the aesthetic characteristics are also improved because the dye-sensitized solar cell 1 is covered with the pair of base materials 5A and 5B.

  Therefore, according to the present invention, a member provided in a conventionally used facility, such as a blind slat, a roof of a vinyl house or a ceiling plate of a garage, or a sunshade, awning, carport, a building wall, etc. By applying the above structure, there is an effect that the built-in structure A of the dye-sensitized solar cell which is excellent in power generation performance and excellent in durability and aesthetic characteristics can be realized.

  Moreover, according to the slat for power generation blinds according to the present invention, since the built-in structure A of the dye-sensitized solar cell having the above-described configuration is applied, the blind having excellent power generation performance and durability and aesthetic characteristics. There is an effect that can be configured.

  Next, the present invention will be described in detail by the following examples, but the present invention is not limited only to these examples.

[Example 1]
In Example 1, a photoelectrode and a counter electrode were produced under the following conditions and procedures, a dye-sensitized solar cell in which an electrolyte was filled between these electrodes was produced, and a conductive layer was formed on one side. A pair of base materials thus prepared was prepared, and a dye-sensitized solar cell built-in structure in which a dye-sensitized solar cell was interposed between the pair of base materials was manufactured. In this example, a blind incorporating a dye-sensitized solar cell was manufactured as an example to which the built-in structure of the dye-sensitized solar cell according to the present invention can be applied.

(Production of photoelectrode)
First, a film material (sheet resistance: 15 Ω / □) made of ITO (tin-doped indium oxide) -PEN (polyethylene naphthalate) having a size of 15 mm × 214 mm is prepared as a conductive resin substrate. The titanium oxide particles were sprayed to form a semiconductor layer. At this time, as film formation conditions in the AD method, nitrogen was used as the carrier gas, the gas flow rate was 1 L / min, the temperature was 25 ° C., and the pressure in the film formation chamber was 100 Pa. At this time, a mixed powder obtained by mixing anatase TiO ₂ particles having an average particle diameter of about 20 nm and about 200 nm at a weight ratio of 50:50 was used as the titanium oxide particles.
The semiconductor layer is formed in a size of 9 mm × 210 mm on the conductive resin substrate, and one of the four corners is set to 4 mm in the lateral width direction from one of the four corners of the conductive resin substrate. They were formed with an interval of 2 mm in the longitudinal direction. The film thickness of the semiconductor layer was adjusted to 8 μm.

  Next, the substrate on which the semiconductor layer is formed is immersed in a dye solution in which a sensitizing dye N719 is dissolved in a 1: 1 mixture of acetonitrile and tert-butanol at a concentration of 0.3 mM for 20 hours. A photoelectrode was produced by adsorbing a sensitizing dye to the surface of the semiconductor layer.

(Preparation of counter electrode)
First, as in the case of the photoelectrode, a film material (sheet resistance: 15Ω / □) made of ITO-PEN of 15 mm × 214 mm was prepared as a conductive resin substrate.
Then, a catalyst layer was formed on one side of the conductive resin substrate by depositing platinum (Pt) using a sputtering method, and a counter electrode was produced. At this time, the thickness of the catalyst layer was adjusted to 30 nm.

(Assembly and production of dye-sensitized solar cells)
The photoelectrode and the counter electrode produced by the above method were assembled in the following procedure to produce a dye-sensitized solar cell.
First, on the semiconductor layer side of the conductive resin substrate forming the photoelectrode, a cell sealing material having a width of 2 mm made of an olefin-based thermoplastic resin is maintained on the peripheral edge of the semiconductor layer on the substrate in order to maintain the distance between the electrodes. It was formed in the thickness required for Under the present circumstances, the hole for electrolyte solution (electrolyte) injection | pouring was formed in a part of side surface of a cell sealing material.

Next, the counter electrode is overlaid so that the cell sealing material is covered so that the catalyst layer faces the photoelectrode side, and then the cell sealing material is heated and cured to perform heat sealing. It was.
Next, after injecting the electrolyte solution from the electrolyte injection hole formed in the cell sealing material and filling the inside, by applying an olefin-based thermoplastic resin to the hole and heat-curing, I plugged the hole. At this time, an electrolytic solution obtained by dissolving 0.05M iodine and 1.0M 1,3-dimethyl-2-propylimidazolium iodide in γ-butyrolactone was used as the electrolytic solution.
A dye-sensitized solar cell was produced by the method described above.

(Blind: Production of a pair of base materials)
First, by cutting out an aluminum thin plate, two substrates constituting an aluminum blind (slat: 25 mm × 240 mm) similar to a commercially available one were produced. Here, in general, a commercially available aluminum blind does not exhibit conductivity because the surface is coated with an insulating resin material.
In addition, a 9 mm × 210 mm cutout (opening) having the same area as the semiconductor layer (sensitizing dye) formed on the photoelectrode was formed on one of the substrates. This opening was formed from one of the four corners of the substrate with an interval of 8 mm in the width direction and 15 mm in the longitudinal direction.

  Next, a sputtering method is used on the entire surface of one side of each of the base material in which the opening is formed (upper one base material) and the base material without the opening (lower base material). By depositing titanium, a conductive layer (sheet resistance: <1Ω / □) was formed.

(Assembly and production of dye-sensitized solar cell built-in structure)
The blind which is an example of the built-in structure of a dye-sensitized solar cell was produced by interposing a dye-sensitized solar cell between a pair of base materials produced by the above method according to the following procedure.
First, a built-in sealing material having a width of 2 mm made of an olefin-based thermoplastic resin was formed on the conductive layer side of one base material (blind) in which an opening was formed so as to be substantially along the peripheral edge. At this time, the built-in sealing material was formed from one of the four corners of one base material with no gap in the width direction and 10 mm in the longitudinal direction.

Subsequently, the conductive tape for connecting with the conductive layer formed in each base material was arranged on each of the conductive resin substrate on the photoelectrode side and the conductive resin substrate on the counter electrode side.
Next, the dye-sensitized solar cell was sandwiched between the pair of base materials so that one base material in which the opening was formed was on the photoelectrode side and the other base material was on the counter electrode side. Under the present circumstances, a pair of base material was arrange | positioned so that the electroconductive layer side might face a dye-sensitized solar cell, respectively. And the dye-sensitized solar cell pinched | interposed by a pair of base material was sealed by heat-hardening a built-in sealing material.

Next, a sealing weir portion having a width of 2 mm made of an olefin-based thermoplastic resin was formed on one base material on which the opening portion was formed so as to be substantially along the peripheral edge portion. At this time, the sealing weir portion was formed from one of the four corners of the one base member with a space of 10 mm in the longitudinal direction and no space in the width direction.
Next, a film made of PEN was placed on the sealing dam so as to cover the opening, and the opening was sealed with a PEN film by heat curing.
The blind of Example 1 which is an example of the built-in structure of the dye-sensitized solar cell concerning this invention was completed by the above procedures.

(Evaluation method)
The following evaluation test was performed on the blind to which the built-in structure of the dye-sensitized solar cell according to the present invention obtained by the above method was applied.
First, regarding the power generation performance of the blind produced in Example 1, using a solar simulator (manufactured by Mitsunaga Electric Mfg. Co., Ltd.), the power generation efficiency (photoelectric conversion efficiency) under pseudo-sunlight irradiation with a light intensity of 100 mW / cm ² is shown. Along with the measurement, the fill factor was measured. The measured values at this time are shown in Table 1 below.

  Also, regarding the aesthetics of the blind after completion, it is evaluated as “A” when the sealant portion and the counter electrode portion of the dye-sensitized solar cell cannot be visually confirmed, and when these can be confirmed, they are evaluated as “B”. The results are shown in Table 1 below.

[Example 2]
In Example 2, the dye-sensitized solar cell according to the present invention was performed in the same procedure as in Example 1 except that aluminum was deposited as a conductive layer on one side of a pair of base materials serving as blind slats. A blind, which is an example of the embedded structure, was manufactured and evaluated in the same manner. At this time, the film thickness of the conductive layer was adjusted so that the sheet resistance of the conductive layer was 3Ω / □.

[Comparative example]
In the comparative example, after a dye-sensitized solar cell was produced in the same manner as in Examples 1 and 2, this dye-sensitized solar cell was directly bonded to a commercially available aluminum blind slat using a double-sided tape. After manufacturing a blind by pasting it on, it was evaluated in the same manner. This aluminum blind does not exhibit conductivity because the surface is coated with an insulating resin material.

  The evaluation test results in Examples 1 and 2 and Comparative Example are shown in Table 1 below.

[Evaluation results]
As shown in the results of Table 1, in the blind to which the built-in structure of the dye-sensitized solar cell having the configuration according to the present invention is applied, the dye-sensitized solar cell is attached to the surface of the slat of the aluminum blind. It was revealed that the power generation efficiency was higher and the aesthetic appearance was superior compared to the comparative example, which was a simple configuration.

  Here, the fill factor shown in Table 1 is most affected by the electric resistance of the base material, but in Examples 1 and 2, it is clear from the sheet resistance of each base material (substrate) described above. Thus, since the electrical resistance of each base material is reduced, it is considered that the curve factor is improved and the power generation efficiency is good.

  On the other hand, in the comparative example, a dye-sensitized solar cell is attached to the surface of a commercially available long slat and the current flows in the slat long direction, so the distance from the power generation site to the current extraction position is large. Therefore, it is considered that the curve factor became very small and the power generation efficiency was lowered.

  The configurations and combinations thereof in the embodiments and examples described above are examples, and additions, omissions, substitutions, and other modifications of the configurations can be made without departing from the spirit of the present invention. . Moreover, this invention is not limited by each embodiment and each Example, It is limited only by a claim.

  The built-in structure of the dye-sensitized solar cell according to the present invention is a facility where a photovoltaic function can be obtained in addition to the existing function by incorporating the structure of the solar cell, such as blind slats, vinyl It can be widely applied to the roof of a house, a ceiling plate of a garage, a sunshade, an awning, a carport, a wall surface of a building, and the like.

A ... built-in structure of dye-sensitized solar cell (slat for power generation blind), 1 ... dye-sensitized solar cell, 5 ... pair of base materials, 5A ... one base material, 5B ... other base material), 5a ... outer surface, 5b ... inner surface, 51 ... conductive layer, 52 ... opening, 53 ... transparent substrate, 54 ... sealing weir, 10 ... photoelectrode, 11 ... conductive resin substrate (photoelectrode), 11a ... transparent base Material (photoelectrode), 11b ... conductive material layer (photoelectrode), 12 ... semiconductor layer, 13 ... dye, 20 ... counter electrode, 21 ... conductive resin substrate (counter electrode), 21a ... base material (counter electrode), 21b ... conductive material layer (counter electrode), 22 ... catalyst layer, 30 ... electrolyte, 40 ... cell sealing material, 6A, 6B ... connection part, 7 ... built-in sealing material.

Claims (5)

At least a dye-sensitized solar cell having a photoelectrode and a counter electrode provided opposite to the photoelectrode has a structure interposed between a pair of base materials,
The inner side of the pair of substrates are a conductive layer having conductivity,
The photoelectrode is formed by laminating a semiconductor layer and a dye in this order on a conductive resin substrate.
The counter electrode is formed by laminating a catalyst layer on a metal foil,
Wherein by said conductive resin substrate and the conductive layer provided on one of a pair of substrates are connected, and the conductive layer and before Kihikariden poles are electrically connected,
The conductive layer and the counter electrode are electrically connected by the surface connection between the conductive layer and the metal foil provided on the other of the pair of base materials. An embedded structure of a dye-sensitized solar cell.   2. The dye-sensitized solar cell according to claim 1, wherein an opening for light transmission is formed in at least a part of the base material in contact with the photoelectrode of the pair of base materials. Cell built-in structure.   The transparent structure which covers the said opening part is provided, The built-in structure of the dye-sensitized solar cell of Claim 2 characterized by the above-mentioned. 4. The dye enhancement according to claim 1, wherein the sheet resistance of the conductive layer is smaller than the sheet resistance of the photoelectrode or the counter electrode connected to the conductive layer. 5. Built-in structure of solar cell . A slat for a power generation blind, comprising the built-in structure of the dye-sensitized solar cell according to any one of claims 1 to 4 .

Images