JP2001357898A - Electrode for pigment-sensitized solar battery and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrode for a pigment-sensitized solar battery capable of enhancing photoelectric conversion efficiency. SOLUTION: This electrode for a pigment-sensitized solar battery is formed by coating a surface of a conductive transparent base material 1 with sol to provide particle films 2 thereon and causing pigment 3 to be adsorbed on or bound to surfaces of the particle films 2. On the surface of the base material 1, the particle films 2 and conductive films 4 with higher conductivity than the base material 1 are respectively provided in electrical contact with the base material 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode used in a dye-sensitized solar cell for converting energy of sunlight or artificial light into electric energy, and a method of manufacturing the same.

[0002]

2. Description of the Related Art As a kind of solar cell, a dye-sensitized solar cell has been well known. And B. O'Reg
an and M. 1991 report by Glazel (Na
(Ture, 353, 737), dye-sensitized solar cells have been subjected to additional tests and improvements around the world, and in Japan, a patent sensitized using a dye from the Ministry of International Trade and Industry's Industrial Technology Institute (JP-A-10-92477). Etc. are known.

The electrodes of these dye-sensitized solar cells are made of a transparent conductive glass coated with a fluorine-doped tin oxide film, and a metal oxide such as titanium oxide is formed on the surface of the conductive transparent substrate. Is applied by a method such as a doctor blade method, and is fired at a temperature of about 500 ° C. to form a particle film.

In order to improve the photoelectric conversion efficiency,
There is a report that this electrode is immersed in an aqueous solution of titanium tetrachloride for treatment. The reason why the photoelectric conversion efficiency is improved by performing the titanium tetrachloride treatment in this way is considered to be that the surface of the particle film is modified. The theory that the surface modification of the particle film improves the photoelectric conversion efficiency is attributed to the increase in the amount of dye adsorbed, and the area of the interface between the particles of the particles forming the sol-coated particle film is increased. There is a theory that this is the effect of suppressing the internal resistance in the particle film (the effect of expanding interparticle necking), but which one is the controlling factor varies depending on the report.

[0005] Dyes used for dye sensitization of electrodes include:
For example, Ru (4,4'-dicarboxil-2-2'-bipyridine) ₂ (NC
Although Ru complexes such as S) ₂ are often used, the above-mentioned patent in Japanese Patent Application Laid-Open No. Hei 10-92477 discloses that this dye is replaced with an organic dye in consideration of the recyclability of the electrode.

As a counter electrode of the above-mentioned electrode, it is common to use a transparent conductive glass similar to that described above, on which platinum is vapor-deposited. It is also possible to attach carbon by painting and use it.

Further, as an electrolyte in which these electrodes are immersed, for example, a solution obtained by dissolving tetrapropylammonium iodide and iodine in a mixed solution of ethylene carbonate and acetonitrile is generally used. Some have been reported to be solidified.

[0008] The dye-sensitized solar cell having the above structure is
Compared to PN junction type semiconductor solar cells, which are general solar cells, use of materials that require less energy for manufacturing, such as not requiring a vacuum for manufacturing, and are also concerned about depletion of resources such as silicon It has attracted attention as a new solar cell that can be manufactured at low cost without the need to perform it.

[0009]

However, the photoelectric conversion efficiency of the dye-sensitized solar cell cannot be said to be sufficient for practical use, and at present it is required to further improve the photoelectric conversion efficiency. .

The present invention has been made in view of the above points, and has as its object to provide an electrode for a dye-sensitized solar cell capable of improving photoelectric conversion efficiency and a method for producing the same.

[0011]

According to a first aspect of the present invention, there is provided an electrode for a dye-sensitized solar cell, wherein a sol is coated on the surface of a conductive transparent substrate, and a particle film is provided. In a dye-sensitized solar cell electrode formed by adsorbing or bonding a dye to the surface of a transparent substrate, the particle film, and a conductive film having higher conductivity than the transparent substrate, respectively, the transparent substrate It is characterized by being provided in an electrically contacted state.

Further, the invention according to claim 2 is characterized in that, in claim 1, the conductive film is a metal film.

According to a third aspect of the present invention, in the first or second aspect, the conductive film has a shape longer toward the current collector.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the particle film and the conductive film are provided alternately along the surface of the transparent substrate, and are provided between adjacent conductive films. The width of the particle film is 10 μm or more and 10 mm or less.

According to a fifth aspect of the present invention, in any one of the first to third aspects, the particle film and the conductive film are provided alternately along the surface of the transparent substrate, and are provided between adjacent particle films. The width of the conductive film is 1 μm or more and 1 mm or less.

According to a sixth aspect of the present invention, there is provided a method for producing an electrode for a dye-sensitized solar cell, wherein a sol is coated on the surface of a conductive transparent substrate to form a particle film, and the surface of the particle film is provided with a dye. In producing a dye-sensitized solar cell electrode formed by adsorbing or binding to, a sol is coated on the surface of a transparent substrate to form a particle film, and after a part of the particle film is removed, a transparent film is formed. The method is characterized in that a conductive film having higher conductivity than the base material is coated on the surface of the transparent base material at the removed portion.

According to a seventh aspect of the present invention, there is provided a method for producing an electrode for a dye-sensitized solar cell, wherein a sol is coated on the surface of a conductive transparent substrate to form a particle film, and the dye film is provided on the surface of the particle film. In manufacturing a dye-sensitized solar cell electrode formed by adsorbing or bonding a sol, a part of the surface of the transparent substrate is coated with a sol by a screen printing method to form a particle film, and the particle film is formed. The method is characterized in that a conductive film having higher conductivity than the transparent base material is coated on the surface of the transparent base material in a portion not provided.

[0018]

Embodiments of the present invention will be described below.

In the present invention, as the transparent base material having conductivity, any material having conductivity and transparency can be employed. It is preferable that the surface of a transparent glass plate is coated with a tin-based oxide or the like, in view of having a high level of property. Tin-based oxides include indium / tin composite oxide (ITO) and antimony / tin composite oxide (AT
O), fluorine-doped tin oxide, etc., and glass coated with fluorine-doped tin oxide is particularly preferred because conductivity is not reduced even by heat of several hundred degrees Celsius, and it is not a harmful substance. Glass coated with ITO is preferred from the viewpoint of low cost.

In the present invention, as the sol used for producing the particle film 2, a sol in which particles (powder) as a solid component are dispersed in a solvent can be used. As this solvent, an organic solvent or water may be used alone,
A mixture of an organic solvent and water may be used. As the solid particles to be dispersed, any material that does not react with or hardly react with the dye adsorbing liquid or the electrolyte constituting the battery and that can inject electrons from the dye should be used. For example, metal oxide particles can be used. Specifically, for example, titania, antimony / tin composite oxide (ATO), tin oxide, zinc oxide and the like can be used alone,
Also, two or more of these can be used as a composite or a mixture. Among these, it is particularly preferable to use particles of titania or a mixture of tin oxide and zinc oxide from the viewpoint that the photoelectric conversion efficiency of the battery is high.
Although the particle size of the particles can be set arbitrarily, the smaller the particle size of the particles is, the better, because the surface area of the particle film is increased to increase the amount of dye adsorbed. However, if the particles are too small, it may be difficult to coat the sol, and it may be difficult to form a particle film. Therefore, the particle size is preferably set in the range of 5 to 100 nm.

In order to further increase the photoelectric conversion efficiency by utilizing light scattering inside the particle film, particles having a particle diameter of 1 μm or more that scatter light may be added to the sol. Also, it has been reported that adding a metal oxide having a different particle size and a different band gap energy to this sol increases the current and voltage taken out of the battery,
Such an additive may be added to a sol that forms a particle film on the electrode of the present invention. Further, an organic polymer such as polyethylene glycol may be added to the sol to control the porosity of the particle membrane. This organic polymer is oxidized and decomposed into carbon dioxide and the like by baking at a temperature of several hundred degrees Celsius after coating the sol, thereby increasing the porosity of the particle film. As a result, the photoelectric conversion of the dye-sensitized solar cell The conversion efficiency can be improved.

As a method for preparing the sol, any method may be used as long as the particles can be substantially uniformly dispersed in the solvent. For example, the particles are calcined in air or an inert gas. Thus, a sol in which particles are dispersed in a solution can be prepared by mixing the crystallized particles with a solvent and stirring the mixture with a stirrer such as a paint shaker. Also, the particles before crystallization are mixed with a solvent and stirred with a stirrer such as a paint shaker to disperse the particles in the solution, and then the particles in the solution are crystallized in an autoclave. May be prepared. Here, in order to increase the transparency or increase the surface area of the particle film formed by coating the sol, a method of autoclaving the particles in the solution and crystallizing the particles is preferable. When a particle film formed by coating is produced at low cost, it is preferable to adopt a method of dispersing particles crystallized by firing in air or an inert gas in a solvent.

Next, the production of the electrode for a dye-sensitized solar cell according to the present invention will be described. First, a conductive transparent substrate 1 produced by coating a transparent conductive film 11 such as a tin-based oxide on the surface of a transparent glass 10 is used, and the surface of the conductive transparent substrate 1 is coated with a sol. FIG. 1
As shown in (a), a particle film 2 in which particles 2a are stacked is formed. As a method of coating the transparent substrate 1 with the sol, any conventional method such as a gravure coating method, a spin coating method, a doctor blade method, a dip coating method, and a screen printing method can be adopted. The thickness of the particle film 2 is preferably set to 2 μm or more, and the sol application amount is preferably adjusted in consideration of this. If the film thickness of the particle film 2 is smaller than 2 μm, the photoelectric conversion efficiency may be reduced. Particle membrane 2
The upper limit of the film thickness may be such that the adhesion to the transparent substrate 1 is not reduced, and may be set to, for example, 20 μm. After forming the particle film 2 in this manner, the transparent substrate 1
In order to enhance the adhesion between the particles and the particle film 2, baking may be performed as necessary.

After forming the particle film 2 in which the particles 2a are stacked as described above, a metal oxide film such as titania or silica may be formed on the surface of the particles 2a of the particle film 2. The formation of the metal oxide film is described in JP-A-11-171.
As disclosed in Japanese Patent Publication No. 537, a metal fluoride solution or a complex fluoride solution is brought into contact with the particle
This can be performed by depositing a metal oxide film on the surface of a.

As described above, the particle film 2 is formed on the surface of the transparent substrate 1.
When forming the particle film 2 by coating the sol with a doctor blade method or the like, the conductive film 4 is formed because the particle film 2 is also formed at the portion where the conductive film 4 is formed. The particle film 2 at the site is removed. Any method of partially removing the particle film 2 may be used as long as the method can remove the particle film 2 without lowering the light transmittance and conductivity of the transparent substrate 1. For example, it may be removed by cutting with a sharp object such as a blade of a cutter, or may be removed by irradiating a laser beam, or the particle film 2 in a portion to be left.
May be masked and dissolved and removed by a chemical method such as etching with an acid. The method of removing with a sharp object is preferable because it can be carried out simply and at low cost.

When the particle film 2 on the surface of the transparent substrate 1 is formed by the screen printing method, the particle film 2 can be formed on a part of the surface of the transparent substrate 1 by partially coating the sol. Therefore, as shown in FIG. 2, the particle film 2 is not formed at the portion where the conductive film 4 is formed.

Next, the transparent substrate 1 is coated with the conductive film 4. As the conductive film 4, a material having higher conductivity than the transparent conductive film 11 of the transparent substrate 1 is used. For example, a metal film such as gold can be used. When the conductive film 4 is formed on the entire surface including the surface of the particle film 2 in coating the conductive film 4, the electrolyte does not reach the particle film 2 when assembling the dye-sensitized solar cell. It is necessary to prevent the entire surface of the film 2 from being covered. FIG.
As shown in (b), the conductive film 4 is preferably formed on the surface of the transparent substrate 1 only at the portion where the particle film 2 is not formed, but the photoelectric conversion efficiency of the dye-sensitized solar cell is reduced. The conductive film 4 is also provided on the surface of the particle film 2 as long as it does not decrease.
May be coated. The coat of the conductive film 4 is
For example, it can be performed by depositing a metal while the surface of the particle film 2 is masked. The thickness of the conductive film 4 is not particularly limited, but may be 0.2 μm
A range of about 5 μm is preferable.

Here, the particle film 2 and the conductive film 4 are each formed in an elongated rectangular shape, and a plurality of the particle films 2 and the conductive film 4 are arranged in the width direction (transverse direction) in the transparent substrate. 1 are provided alternately along the surface. The size of each particle film 2 provided between the adjacent conductive films 4 is preferably as small as possible because the power generation efficiency increases. However, if the width dimension (dimension in the lateral direction) of each particle film 2 becomes too small, the lower limit of the width dimension of the conductive film 4 is limited, so that the ratio of the area of the particle film 2 to the electrode area decreases. hand,
The photoelectric conversion efficiency decreases. For these reasons, the particle membrane 2
Is preferably 10 μm or more and 10 mm or less, and more preferably 100 μm or more and 5 mm or less.

Also, the smaller the size of each conductive film 4 provided between the adjacent particle films 2, the larger the size of the entire particle film 2 and the larger the opening area to the incident light. Is preferred. However, when the width dimension (dimension in the lateral direction) of the conductive film 4 becomes too small, the conductive film 4 is coated and coated.
Is difficult to form. For these reasons, the width dimension of the conductive film 4 is preferably 1 μm or more and 1 mm or less, and more preferably 1 μm or more and 100 μm or less. Here, as shown in FIG. 3 to be described later, when forming a current collector 12 connected to the conductive film 4 on the surface of the electrode, the conductive film 4 is formed so as to have a longer shape toward the current collector 12. Preferably, it is formed. The current collector 12 is connected to a conducting wire to serve as a pad for outputting the generated electricity to the outside.
By forming it to have a long shape toward 2, the generated electricity can move efficiently and the photoelectric conversion efficiency can be increased.

After the particle film 2 and the conductive film 4 are respectively provided on the surface of the conductive transparent substrate 1 in a state of being in electrical contact with the transparent substrate 1, as shown in FIG. By adsorbing or binding the dye 3 to the surface of the particle film 2 as described above, an electrode for a dye-sensitized solar cell can be obtained. As the dye 3, any one used for a dye-sensitized solar cell can be used, and for example, a ruthenium complex or the like can be used. The adsorption and binding of the dye can be performed by immersing the dye in a dye adsorption solution in which the dye is dissolved. The dye is adsorbed and bound to the surface of the conductive film 4 in addition to the surface of the particle film 2. No problem.

In this electrode, since a part of the surface of the transparent substrate 1 having conductivity is covered with the conductive film 4 instead of the particle film 2, the photoelectric conversion efficiency is higher than that of the conventional dye-sensitized solar cell. Can be increased. The reason why the photoelectric conversion efficiency can be improved in this way is that the transparent conductive film 11 of the transparent base material 1 having insufficient resistance
Is sufficiently low to compensate for the incident light, so that the diffused reflection of light occurs at the end of the particle film 2 and the incident light can be used more effectively. It is possible, but not evident, that more effective diffuse reflection occurs inside the particle film 2 at the contacting part.

[0032]

The present invention will be specifically described below with reference to examples.

(Example 1) The surface of a transparent glass plate 10
40 m formed by providing a transparent conductive film 11 made of a TO film
Using a transparent base material 1 having a size of mx 35 mm x thickness of 1.1 mm and having conductivity, it was sufficiently washed and dried. Then, a titanium oxide sol “TiNan” manufactured by Solaronix is applied to the surface of the transparent substrate 1.
oxide-T is gravure coated by 20mm x 20mm
Was coated so as to have a thickness of 5 μm. Next, this is dried at room temperature and then dried in air at a temperature of 500 ° C. for 1 hour.
By firing for a time, a particle film 2 made of titanium oxide particles was formed on the surface of the transparent substrate 1 (see FIG. 1A).

Next, a cut was made using a commercially available cutter knife so that the particle film 2 was formed into four rectangles of 5 mm × 20 mm, and the particle film 2 at the cut portion was removed. The width of the cut portion was 0.1 mm, and SEM observation of the cross section after the test confirmed that only the particle film 2 was removed from the cut, and the transparent conductive film 11 was not removed.

Next, the surface of the particle film 2 and the surface of the transparent substrate 1 are masked, and a vacuum deposition of gold is performed to form a conductive film 4 on the surface of the transparent substrate 1 at the cuts between the particle films 2. (See FIG. 2B). The thickness of the conductive film 4 was 4 μm, and the width of the conductive film 4 between adjacent particle films 2 was 0.1 mm. Further, as shown in FIG. 3, the conductive film 4 is formed on the surface of one end of the transparent substrate 1 in addition to the portion between the adjacent particle films 2. Current collecting portion 12 with conductive film 4 formed on the surface of the portion.
Is formed.

Next, a ruthenium dye "Ruthenium 535" manufactured by Solaronix Co. was used as the dye 3, and 0.135 g of this was dissolved in 1 liter of ethanol to prepare a dye adsorption solution. The transparent substrate 1 on which the conductive film 4 was formed was immersed day and night to adsorb the dye 3 on the surface (see FIG. 1 (c)), and then washed with ethanol and dried at room temperature. Thus, an electrode for a dye-sensitized solar cell was obtained.

Example 2 The same conductive titanium oxide sol as in Example 1 was coated on the surface of the same transparent substrate 1 as in Example 1 to a thickness of 5 μm by screen printing, and dried and dried in the same manner as in Example 1. By firing, a particle film 2 was formed. At this time,
The particle membrane 2 has four rectangles of 5 mm × 20 mm each having a width of 0.1.
It was formed so as to be juxtaposed with a gap of mm (see FIG. 2). Thereafter, the conductive film 4 was formed and the dye 3 was adsorbed in the same manner as in Example 1 to obtain an electrode for a dye-sensitized solar cell.

Comparative Example 1 The same titanium oxide sol as in Example 1 was coated on the surface of the same transparent transparent substrate 1 as in Example 1 by a doctor blade method in the same manner as in Example 1. Drying and baking were performed in the same manner as in Example 1 to form a particle film 2. Next, Example 1 was performed without forming the conductive film 4.
The dye 3 was adsorbed in the same manner as described above to obtain an electrode for a dye-sensitized solar cell.

A dye-sensitized solar cell was assembled using the electrodes manufactured as described above. First, an electrolytic solution was prepared by mixing tetrapropylammonium iodide and iodine in a mixed solution of 80% by volume of ethylene carbonate and 20% by volume of acetonitrile, at 0.46 mol / liter and 0.06 mol / liter, respectively.
It was prepared by dissolving to a liter. Also, 30m
The center of a silicone rubber plate having a size of mx 30 mm x thickness 0.5 mm is left with a width of 5 mm, and a width of 20 mm x 20 mm
A frame-shaped spacer was produced by cutting out the window of the above. Further, a counter electrode was prepared. That is, 40 mm × 3
A 5 mm × 1.1 mm thick transparent glass plate with an ITO film was sufficiently washed and dried, and the surface of this glass plate was painted black with a 2B pencil to attach carbon to the surface of the ITO film to serve as a counter electrode.

A spacer is placed on each of the electrodes obtained in Examples 1 and 2 and Comparative Example 1 so that the particle film 2 and the conductive film 4 can be seen in the window. ,
Further, the dye-sensitized solar cell was assembled by placing it so that air did not enter therein, and fixing the electrode and the counter electrode with clips.

The dye-sensitized solar cell assembled as described above was placed under a fluorescent lamp ("SQ982F", 54W, manufactured by Matsushita Electric Works, Ltd.), and the open-circuit voltage and short-circuit current between the electrode and the counter electrode were measured. Table 1 shows the results.

[0042]

[Table 1]

As can be seen from Table 1, the short-circuit currents of Examples 1 and 2 are nearly 1.5 times larger than those of Comparative Example 1, indicating that the photoelectric conversion efficiency is improved. It is confirmed.

[0044]

As described above, the dye-sensitized solar cell electrode according to the first aspect of the present invention provides a particle film by coating sol on the surface of a conductive transparent substrate. In a dye-sensitized solar cell electrode formed by adsorbing or bonding a dye to the surface of a transparent substrate, the particle film, and a conductive film having higher conductivity than the transparent substrate, respectively, the transparent substrate It is characterized in that it is provided in an electrically contacting state, so that a part of the surface of the conductive transparent substrate is covered with a conductive film instead of a particle film, so that a conventional dye-sensitized solar cell Thus, the photoelectric conversion efficiency can be higher than that.

According to the second aspect of the present invention, since the conductive film is a metal film, a conductive film having high conductivity can be formed.
The photoelectric conversion efficiency can be improved.

According to the third aspect of the present invention, since the conductive film has a long shape toward the current collecting portion, the generated electricity can be efficiently transferred to the current collecting portion, and the photoelectric conversion efficiency is improved. Is what you can do.

According to a fourth aspect of the present invention, the particle film and the conductive film are alternately provided along the surface of the transparent substrate, and the width of the particle film provided between the adjacent conductive films is 10 μm or more.
mm or less, the photoelectric conversion efficiency can be increased.

According to a fifth aspect of the present invention, the particle film and the conductive film are alternately provided along the surface of the transparent substrate, and the width of the conductive film provided between adjacent particle films is 1 μm to 1 mm.
Since the following characteristics are obtained, photoelectric conversion efficiency can be increased.

According to a sixth aspect of the present invention, there is provided a method for producing an electrode for a dye-sensitized solar cell, wherein a sol is coated on the surface of a conductive transparent substrate to form a particle film, and the dye film is formed on the surface of the particle film. In producing a dye-sensitized solar cell electrode formed by adsorbing or binding to, a sol is coated on the surface of a transparent substrate to form a particle film, and after a part of the particle film is removed, a transparent film is formed. Since the conductive film having a higher conductivity than the base material is coated on the surface of the transparent base material at the removed portion, the particle film and the conductive film are electrically connected to the transparent base material, respectively. They can be provided in contact with each other.

According to a seventh aspect of the present invention, there is provided a method for producing an electrode for a dye-sensitized solar cell, wherein a sol is coated on the surface of a conductive transparent substrate to form a particle film, and the surface of the particle film is provided with a dye. In manufacturing a dye-sensitized solar cell electrode formed by adsorbing or bonding a sol, a part of the surface of the transparent substrate is coated with a sol by a screen printing method to form a particle film, and the particle film is formed. Since the surface of the transparent substrate is coated with a conductive film having higher conductivity than that of the transparent substrate in a portion that is not present, the particle film and the conductive film are respectively electrically connected to the transparent substrate on the surface of the transparent substrate. It can be provided in a state where it is set.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention,
(A), (b), (c) are sectional views, respectively.

FIG. 2 is a sectional view showing another example of the embodiment of the present invention.

FIG. 3 is a plan view showing another example of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transparent base material 2 Particle film 3 Dye 4 Conductive film

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5F051 AA11 AA14 CB13 EA16 FA03 FA04 FA08 GA03 5H032 AA06 AS16 BB05 CC11 EE01 EE07 EE16 EE18 HH04

Claims (7)

[Claims] 1. A dye-sensitized solar cell electrode formed by coating a sol on a surface of a transparent base material having conductivity to form a particle film, and adsorbing or binding a dye to the surface of the particle film. A dye-sensitized solar cell, wherein the particle film and a conductive film having higher conductivity than the transparent substrate are provided on the surface of the substrate, respectively, in a state of being in electrical contact with the transparent substrate. Electrodes. 2. The electrode for a dye-sensitized solar cell according to claim 1, wherein the conductive film is a metal film. 3. The electrode for a dye-sensitized solar cell according to claim 1, wherein the conductive film has a shape that is longer toward the current collector. 4. The method according to claim 1, wherein the particle film and the conductive film are alternately provided along the surface of the transparent substrate, and the width of the particle film provided between the adjacent conductive films is 10 μm or more and 10 mm or less. The electrode for a dye-sensitized solar cell according to claim 1. 5. The method according to claim 1, wherein the particle film and the conductive film are provided alternately along the surface of the transparent substrate, and the width of the conductive film provided between the adjacent particle films is 1 μm or more and 1 mm or less. The electrode for a dye-sensitized solar cell according to claim 1. 6. A method for producing an electrode for a dye-sensitized solar cell formed by coating a sol on a surface of a transparent base material having conductivity, providing a particle film, and adsorbing or binding a dye to the surface of the particle film. In this case, the surface of the transparent substrate is coated with a sol to form a particle film, and after a part of the particle film is removed, a conductive film having higher conductivity than the transparent substrate is applied to the transparent substrate at the above-mentioned removed portion. A method for producing an electrode for a dye-sensitized solar cell, characterized by coating the surface of a dye. 7. A method for producing a dye-sensitized solar cell electrode formed by coating a sol on the surface of a conductive transparent substrate to form a particle film and adsorbing or binding a dye to the surface of the particle film. In doing so, a part of the surface of the transparent substrate is coated with a sol by a screen printing method to form a particle film, and a conductive film having higher conductivity than the transparent substrate is formed on a portion where the particle film is not formed. A method for producing an electrode for a dye-sensitized solar cell, comprising coating the surface.