KR20120005782A - Dye sensitized solar cell comprising counter electrode having mesoporous carbon electrode deposited on transparent substrate and preparation method thereof - Google Patents

Abstract

PURPOSE: A dye sensitive solar cell including a counter electrode with a mesoporous carbon electrode on a transparent substrate and a manufacturing method thereof are provided to obtain high photoelectric conversion efficiency by using mesoporous carbon catalyst with a large pore. CONSTITUTION: A counter electrode(20) includes a mesoporous carbon electrode(25) formed on a transparent substrate(21). The mesoporous carbon electrode is formed by using an aligned mesoporous carbon electrode catalyst. The mesoporous carbon electrode catalyst has an amorphous carbon wall. The mesoporous carbon electrode provides a catalyst reaction unit for a reduction of a tri-iodide. An operation electrode is made of dye absorbed in a nano oxide layer formed on the transparent substrate.

Description

Dye-sensitized solar cell comprising a counter electrode with mesoporous carbon electrode formed on a transparent substrate and a method for manufacturing the same

The present invention relates to a dye-sensitized solar cell including a counter electrode having a mesoporous carbon electrode formed on a transparent substrate, and a method of manufacturing the same. More specifically, the platinum layer is expensive in a counter electrode of a conventional dye-sensitized solar cell. By forming a mesoporous carbon electrode with a mesoporous carbon catalyst having a large pore aligned in place, the manufacturing cost can be reduced, and the photoelectric conversion efficiency of the dye-sensitized solar cell can be comparable with that of the conventional dye-sensitized solar cell. It relates to a dye-sensitized solar cell and a manufacturing method thereof.

Recently, the importance of developing the next generation of clean energy is increasing due to serious environmental pollution and depletion of fossil energy. Among them, the solar cell is a device that directly converts solar energy into electrical energy, and is expected to be an energy source capable of solving future energy problems due to its low pollution, infinite resources, and a semi-permanent lifetime.

The solar cells are classified by materials into inorganic solar cells, dye-sensitized solar cells, and organic solar cells.

Single crystal silicon is mainly used as an inorganic solar cell, and such single crystal silicon-based solar cell has an advantage of being manufactured as a thin-film solar cell, but has a problem of high cost and low stability.

Dye-sensitized solar cells, unlike conventional silicon solar cells by pn junctions, transfer photosensitive dye molecules capable of absorbing visible light to generate electron-hole pairs, and generated electrons. A photoelectrochemical solar cell using a transition metal oxide as a main component material. Dye-sensitized solar cells can withstand long-term exposure to light and heat, compared to conventional silicon-based solar cells, and can produce energy inexpensively and easily.

As a representative example of dye-sensitized solar cells known so far, there are those published by Gratzel et al. (S. Patent Nos. 4,927,721 and 5,350,644). The dye-sensitized solar cell proposed by Gratzel et al. Consists of a semiconductor electrode composed of nanoparticle titanium dioxide (TiO ₂ ) coated with dye molecules, a counter electrode coated with platinum or carbon, and an electrolyte solution filled between these electrodes. have. This photoelectrochemical solar cell has attracted attention due to the low manufacturing cost per power compared to the conventional silicon solar cell. The dye-sensitized solar cell technology developed by Gratzel has proved to be promising as an inexpensive alternative to expensive silicon solar cells.

As described above, the dye-sensitized solar cell has the advantage that the manufacturing cost is lower than that of the conventional silicon solar cell, and the transparent electrode is applicable to the glass wall or the glass greenhouse of the building's outer wall, but the photoelectric conversion efficiency is low, so the practical application is limited. This is the situation.

Up to now, the efficiency improvement of dye-sensitized solar cells has been made mainly by research and development on photoelectrode and electrolyte. In particular, research on photoelectrodes has been actively conducted. The research and development on photoelectrodes includes development of low-cost, high-efficiency dyes, optimization of photochemical properties of titanium oxide layers (such as crystal structure and morphology), and prevention of charge recombination. It can be divided into

Research on counter electrodes has recently begun, for example, Hauch and Georg have stacked platinum catalyst layers on conductive glass substrates and compared their efficiencies in various ways (A. Hauch and A. Georg, Electrochimica Acta 46, 3457, 2001). ). They deposit platinum catalyst layers of varying thickness on conductive glass substrates using DC magnetron sputtering, electron beam evaporation, and thermal decomposition, and use electrolyte / electrodes using alternating current impedance analysis. The electron transfer resistance at the interface was measured. As a result, the electron transfer from the I ^- ion to the platinum layer was found to determine the reaction rate at the interface of the counter electrode of the dye-sensitized solar cell.

The counter electrode of conventional dye-sensitized solar cell as described above was prepared by depositing a platinum catalyst layer, and the manufacturing cost increases, and the case of forming a platinum catalyst layer on the counter electrode I ^- / I ₃ ^- platinum is dissolved into the redox electrolyte There is a problem.

Recently a variety of carbon materials having a high surface area that can be substituted for the platinum catalyst in the counter electrode of the dye-sensitized solar cell, the open bar ((a) A. Kay, M. Gr, Sol. Energy Mater. Sol. Cells 1996 , 44, 99; (b) K. Imoto, K. Takahashi, T. Yamaguchi, T. Komura, J. Nakamura, K. Murata, Sol Energy Mater Sol Cells 2003, 79, 459;... (c) TN Murakami, S. Ito, Q. Wang, MK Nazeeruddin, T. Bessho, I. Cesar, P. Liska, RH Bakar, P. Comte,. P. Pechy, M. Gr, J. Electrochem Soc. 2006, 153, A2255.)

However, the micropores that are not aligned in the carbon materials are not easy to impregnate the redox electrolyte, so the carbon material must be deposited to a thickness of several tens of micrometers in order to perform the catalytic role. There was a problem of low efficiency.

The present inventors have repeatedly studied to improve the photoelectric conversion efficiency of dye-sensitized solar cells and to reduce manufacturing costs, and as a result, well-aligned mesoporous carbon having large pores in the counter electrode of the dye-sensitized solar cell. Dye-sensitized solar cell having a carbon electrode formed using an electrode catalyst can exhibit photoelectric conversion efficiency comparable to a dye-sensitized solar cell including a counter electrode having a conventional platinum catalyst layer and can reduce manufacturing cost. The battery and its manufacturing method have been developed to complete the present invention.

An object of the present invention is to provide a dye-sensitized solar cell and a method for manufacturing the same that can exhibit excellent photoelectric conversion efficiency and lower the manufacturing cost.

It is another object of the present invention to provide a counter electrode of a dye-sensitized solar cell in which a carbon electrode is formed using aligned mesoporous carbon having large pores that can replace the counter electrode on which a conventional platinum catalyst layer is formed. It is to provide.

In order to achieve the above object, the present invention provides a dye-sensitized solar cell comprising a working electrode and a counter electrode, the counter electrode comprises a mesoporous carbon electrode formed on a transparent substrate. To provide.

In addition, the present invention comprises the steps of preparing a counter electrode by forming a mesoporous carbon electrode on the transparent substrate on which the transparent conductive oxide layer is formed (step 1); Forming a nano oxide layer on a transparent substrate on which the transparent conductive oxide layer is formed and adsorbing a dye to prepare a working electrode (step 2); And it provides a method of manufacturing a dye-sensitized solar cell comprising a step (step 3) of injecting an electrolyte after bonding the counter electrode prepared in step 1 and the working electrode prepared in step 2 facing each other.

In one embodiment of the invention, the mesoporous carbon electrode can be formed using an ordered mesoporous carbon electrode catalyst having a structure of interconnecting pores of 4 to 22 nm, the mesoporous carbon electrode catalyst is amorphous It is preferable to have a carbon wall of.

In one embodiment of the present invention, the working electrode may be an electrode prepared by adsorbing a ruthenium-based dye on the nano oxide layer formed on a transparent substrate.

In one embodiment of the present invention, the dye-sensitized solar cell may be prepared including a liquid electrolyte or a semi-solid electrolyte.

The present invention relates to a dye-sensitized solar cell including a counter electrode having a conventional platinum catalyst layer formed by forming a carbon electrode using a well-aligned mesoporous carbon electrode catalyst having large pores on a counter electrode of a dye-sensitized solar cell. The present invention can provide a dye-sensitized solar cell and a method for manufacturing the same, which can exhibit a photoelectric conversion efficiency comparable to a battery and can lower manufacturing costs.

1 is a view schematically showing the principle of the generation of current by the reduction reaction of tri- iodide (I ₃ ⁻ ) between the counter electrode and the working electrode of the dye-sensitized solar cell.
FIG. 2 is a schematic diagram showing easy dispersibility and reduction of I ₃ ⁻ ions of an aligned mesoporous carbon electrocatalyst having large pores forming a mesoporous carbon electrode in the present invention.
3 is a view schematically showing a counter electrode of a dye-sensitized solar cell according to the present invention.
4 is a view schematically showing the working electrode of the dye-sensitized solar cell according to the present invention.
5 is a side cross-sectional view showing a sealed state by coupling a counter electrode and a working electrode according to an embodiment of the present invention.
6 is a photograph taken with a high resolution transmission electron micrograph of the aligned mesoporous carbon electrode catalyst prepared in Example 1 of the present invention.
7 is a graph showing the results of measuring the current density-voltage characteristics of the dye-sensitized solar cells prepared in Example 1 and Comparative Examples 1 to 3 in Test Example 1 of the present invention.
8 is a graph showing the results of measuring the current density-voltage characteristics of the dye-sensitized solar cells prepared in Example 2 and Comparative Examples 4 to 6 in Test Example 1 of the present invention.
1, 21: transparent substrate 2, 22: transparent conductive oxide layer
3, 23: border layer 4: dye-adsorbed nano oxide layer
5: junction 10: working electrode
20 counter electrode 25 mesoporous carbon electrode
40: Dye-Sensitized Solar Cell

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

The present invention provides a dye-sensitized solar cell comprising a working electrode and a counter electrode, wherein the counter electrode includes a mesoporous carbon electrode formed on a transparent substrate.

1 is a view schematically showing the principle of the generation of current by the reduction reaction of tri- iodide (I ₃ ⁻ ) between the counter electrode and the working electrode of the dye-sensitized solar cell. As shown in FIG. 1, the oxidized dye at the working electrode receives electrons from I ⁻ ions and I ₃ ⁻ ions are reduced to I ⁻ ions at the counter electrode.

In the present invention, a counter electrode including a mesoporous carbon electrode formed on a transparent substrate is used as a counter electrode of a dye-sensitized solar cell, and the mesoporous carbon electrode formed on the transparent substrate improves the reduction reaction of I ₃ ^- ions. The photoelectric conversion efficiency of the dye-sensitized solar cell can be improved.

In the present invention, an ordered mesoporous carbon electrocatalyst having large pores is used as a material capable of forming a mesoporous carbon electrode and improving the reduction reaction of I ₃ ^- ions. do.

FIG. 2 is a schematic diagram showing the easy dispersibility of an ordered mesoporous carbon electrocatalyst with large pores forming a mesoporous carbon electrode and the reduction of I ₃ ⁻ ions.

The aligned mesoporous carbon electrocatalyst having the large pores has a structure in which the pores of 4 to 22 nm are interconnected, and an amorphous carbon wall is preferably used.

The mesoporous carbon electrocatalyst has a structure in which the pores are interconnected to facilitate the dispersion of redox species, and has an amorphous carbon wall to provide a catalytic reaction portion for the reduction reaction of I ₃ ^- ions, thereby providing a dye of the present invention. It is possible to improve the reduction reaction of I ₃ ^- ions at the counter electrode of the sensitized solar cell.

In one embodiment of the present invention, the working electrode may be an electrode prepared by dye is adsorbed on the nano-oxide layer formed on the transparent substrate, the transparent substrate may be a glass substrate or a transparent plastic substrate, As the dye, ruthenium-based dyes may be used.

In one embodiment of the present invention, the nano oxide layer may be formed by applying a coating composition containing titanium dioxide.

In the present invention, the working electrode can be used as a working electrode generally used in dye-sensitized solar cells manufactured by a method other than the above-described method.

In the dye-sensitized solar cell according to the present invention, the electrolyte may be a liquid electrolyte or a semi-solid electrolyte impregnated with a liquid electrolyte in a three-dimensional polymer gel matrix. The liquid electrolyte or semi-solid electrolyte may be used without limitation, a liquid electrolyte or a semi-solid electrolyte commonly known in the art.

In addition, the present invention comprises the steps of preparing a counter electrode by forming a mesoporous carbon electrode on the transparent substrate on which the transparent conductive oxide layer is formed (step 1); Forming a nano oxide layer on a transparent substrate on which the transparent conductive oxide layer is formed and adsorbing a dye to prepare a working electrode (step 2); And it provides a method of manufacturing a dye-sensitized solar cell comprising a step (step 3) of injecting an electrolyte after bonding the counter electrode prepared in step 1 and the working electrode prepared in step 2 facing each other.

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

First, a counter electrode is manufactured by forming a mesoporous carbon electrode on the transparent substrate on which the transparent conductive oxide layer is formed (step 1).

3 is a view schematically showing a counter electrode of a dye-sensitized solar cell according to the present invention.

Referring to FIG. 3, after the transparent conductive oxide layer 22 is deposited on a transparent substrate 21 such as a glass substrate or a transparent plastic substrate, a mesoporous carbon electrode 25 is formed thereon to form the counter electrode 20. It can manufacture.

The transparent conductive oxide layer 22 may be tin oxide (FTO), indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc oxide (IZTO), aluminum zinc oxide (AZO), or indium tin doped with fluorine. Oxide-silver-indium tin oxide (ITO-Ag-ITO), indium zinc oxide-silver-indium zinc oxide (IZO-Ag-IZO), indium zinc tin oxide-silver-indium zinc tin oxide (IZTO-Ag-IZTO) Aluminum zinc oxide-silver-aluminum zinc oxide (AZO-Ag-AZO) may be deposited on the transparent substrate 21.

The mesoporous carbon electrode 25 has a structure in which pores of 4 to 22 nm are interconnected as described above, and may be formed using an aligned mesoporous carbon electrode catalyst having large pores having an amorphous carbon wall. have.

Next, a nano oxide layer is formed on a transparent substrate on which the transparent conductive oxide layer is formed, and dye is adsorbed to prepare a working electrode (step 2).

4 is a view schematically showing the working electrode of the dye-sensitized solar cell according to the present invention.

Referring to FIG. 4, the operating electrode 10 may be manufactured by forming the nanooxide layer 4 on which the dye is adsorbed on the transparent substrate 1 on which the transparent conductive oxide layer 2 is formed, as described in step 1. Can be. More specifically, after coating the coating composition comprising titanium dioxide on the transparent substrate 1 having the transparent conductive oxide layer 2 to form a nano oxide layer, the substrate is immersed in a solution containing ruthenium dye In this way, the working electrode 10 may be manufactured by adsorbing a dye onto the nanooxide layer.

Finally, the counter electrode manufactured in Step 1 and the working electrode prepared in Step 2 are bonded to each other, and then the electrolyte is injected to prepare the dye-sensitized solar cell of the present invention (Step 3).

In one embodiment of the present invention, after the counter electrode 20 and the working electrode 10 are joined to face each other, after forming a fine hole in the counter electrode 20 or the working electrode 10 to inject the electrolyte solution, Dye-sensitized solar cell 40 can be manufactured by sealing the said hole using a polymeric resin.

When manufacturing the dye-sensitized solar cell of the present invention according to the above-described method can exhibit a photoelectric conversion efficiency comparable to the dye-sensitized solar cell comprising a counter electrode formed with a conventional platinum catalyst layer, replacing the platinum catalyst layer The manufacturing cost can be reduced by using a carbon electrode using an aligned mesoporous carbon electrode catalyst having large pores. This effect is explained in more detail below.

Hereinafter, preferred examples are provided to aid the understanding of the present invention, but the following examples are merely for exemplifying the present invention, and it will be apparent to those skilled in the art that various changes and modifications can be made within the scope and spirit of the present invention. It is natural that such variations and modifications fall within the scope of the appended claims.

< Example >

Example  One

(1) A transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed was prepared. Applying a coating composition comprising titanium dioxide on the transparent conductive oxide layer of the substrate by a doctor blade method, and heat-treated at 500 ℃ for 30 minutes, so that the contact and filling between nano-sized metal oxide is made to about 8 ㎛ A thick nano oxide layer was formed. Subsequently, a coating composition including titanium dioxide was applied to the upper portion of the nano oxide layer by the same method, and heat-treated at a temperature of 500 ° C. for 30 minutes to form a nano oxide layer having a thickness of about 15 μm. A dye solution in which 0.2 mM ruthenium dithiocyanate 2,2'-bipyridyl-4,4'-dicarboxylate and 0.2 mM lithium phosphate (Li ₃ PO ₄ ) was dissolved in ethanol was prepared. The substrate having the nano-oxide layer formed thereon was supported for 24 hours and then dried to adsorb dyes and phosphate ions onto the nano-sized metal oxide to prepare a working electrode.

(2) A transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed was prepared. A counter electrode was prepared by dropping a solution in which an aligned mesoporous carbon electrode catalyst having 22 nm pores was dissolved on the transparent conductive oxide layer of the substrate, followed by heat treatment at 450 ° C. for 30 minutes to form a mesoporous carbon electrode. It was.

(3) After the nano-oxide layer of the working electrode and the mesoporous carbon electrode of the counter electrode are opposed to each other, a thermoplastic polymer layer having a thickness of about 60 μm made of SURLYN (manufactured by Du Pont) is formed, and then 130 ° C. It was put in the oven of and maintained for 2 minutes to attach the two electrodes were sealed. Next, by forming a fine hole penetrating the working electrode and the counter electrode and injecting the electrolyte solution into the space between the two electrodes through the hole, and then again sealed the outside of the hole with an adhesive to the dye-sensitized solar cell of the present invention Prepared. Here, the electrolyte solution is 0.1M LiI, 0.05MI ₂ , 0.5M 4-tert-butylpyridine in a 3-Methoxypropionitrile solvent and 0.6M 1 as an ionic liquid. -Ethyl-1-methylpyrrolidinium iodide (1-Ethyl-1-methylpyrrolidinium iodide) was prepared by melting.

Comparative example  One

A dye-sensitized solar cell was prepared in the same manner as in Example 1 except that a carbon electrode was formed on a transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed by forming a counter electrode using Vulcan XC 72 carbon black. Prepared.

Comparative example  2

Example 1 except that a carbon electrode was formed using a CMK-3 carbon, which is a medium-porous carbon material, by using a silica mold on a transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed. In the same manner to prepare a dye-sensitized solar cell.

Comparative example  3

Dyeing was performed in the same manner as in Example 1 except that the counter electrode was formed by thermal evaporation of platinum hexachloride (H ₂ PtCl ₆ ) on a transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed. A sensitized solar cell was prepared.

Example  2

A dye-sensitized solar cell was prepared in the same manner as in Example 1 except that an organic-inorganic composite gel electrolyte in which silica particles were mixed with an imidazole-based ionic liquid was applied.

Comparative example  4

A dye-sensitized solar cell was prepared in the same manner as in Example 2 except that a carbon electrode was formed on a transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed using a counter electrode. Prepared.

Comparative example  5

Example 2 except that a carbon electrode was formed using a CMK-3 carbon, a medium-porous carbon material, using a silica mold on a transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed. In the same manner to prepare a dye-sensitized solar cell.

Comparative example  6

Dyeing was performed in the same manner as in Example 2 except that the counter electrode was formed by thermal evaporation of platinum hexachloride (H ₂ PtCl ₆ ) on a transparent glass substrate on which a fluorine-doped tin oxide transparent conductive oxide layer was formed. A sensitized solar cell was prepared.

Test Example

In order to evaluate the photoelectric conversion efficiency of the dye-sensitized solar cells prepared in Examples 1, 2 and Comparative Examples 1 to 6 by measuring the optical voltage and photocurrent by the following method to observe the photoelectric characteristics By using the current density (J _sc ), the voltage (V _oc ), and the filling factor (ff factor) obtained through this, the photoelectric conversion efficiency (η) was calculated by Equation 1 shown in Table 1 and Table 2 below. , Graphing the current density-voltage characteristics are shown in FIGS. 7 and 8.

At this time, a xenon lamp (Oriel) was used as the light source, and the solar condition (AM 1.5G) of the xenon lamp was corrected using a standard solar cell.

[Equation 1]

η (%) = (V _oc × J _sc × ff) / (P _ine )

In Equation 1, (P _ine ) represents 100 ㎽ / ㎠ (1 sun).

The values measured as above are shown in Table 1 below.

Pore size
(nm) BET surface area
(m ² .g ^-1 ) R _CT Ω.cm ² V _OC (V) J _SC (mA.cm ^-2 ) FF 侶 (%) Example 1 22 800 8.75 0.782 14.95 0.70 8.18 Comparative Example 1 - 250 50.09 0.770 14.90 0.59 6.77 Comparative Example 2 3 1400 56.13 0.772 14.57 0.60 6.75 Comparative Example 3 - - 4.75 0.783 15.48 0.73 8.85

Pore size
(nm) BET surface area
(m ² .g ^-1 ) R _CT Ω.cm ² V _OC (V) J _SC (mA.cm ^-2 ) FF 侶 (%) Example 2 22 800 8.75 0.748 7.78 0.62 3.61 Comparative Example 4 - 250 50.09 0.755 7.72 0.44 2.57 Comparative Example 5 3 1400 56.13 0.789 7.67 0.46 2.78 Comparative Example 6 - - 4.75 0.759 7.81 0.68 4.03

* The BET surface area is calculated by the nitrogen adsorption method.

Referring to Table 1, Comparative Examples 1 and 2, in which carbon electrodes are formed using different carbon materials on the counter electrode, form the carbon electrodes on the counter electrode using mesoporous carbon electrode catalysts aligned according to the present invention. Compared to Example 1, the charge transfer resistance (R _CT ) of the electrode was very high, and the charge transfer resistance (R _CT ) was slightly higher than that of Comparative Example 3 in which the platinum catalyst layer was formed on the counter electrode. Referring to FIG. 7, the charge transfer resistance (R _CT ) of Comparative Example 1 and Comparative Example 2, in which carbon electrodes are formed using different carbon materials, has a very high value and accordingly, a high filling coefficient according to the present invention. It can be seen that the photoelectric conversion efficiency is lower than that of Example 1 in which the carbon electrodes are formed on the counter electrode using the aligned mesoporous carbon electrode catalyst.

Referring to Table 1 and Figure 7, the dye-sensitized solar cell prepared according to the present invention in the dye-sensitized solar cells of Comparative Example 1 and Comparative Example 2 in which the carbon electrode is formed using a different carbon material on the counter electrode It can be seen that the photoelectric conversion efficiency is improved by about 21%, and the photoelectric conversion efficiency is almost equivalent to that of the dye-sensitized solar cell of Comparative Example 3 in which the platinum catalyst layer is formed on the counter electrode.

In addition, referring to Table 2 and FIG. 8 showing the photoelectric characteristics of Example 2 and Comparative Examples 4 to 6 to which a semi-solid electrolyte is applied, carbons using different carbon materials may be used similarly to the results examined in Tables 1 and 7 above. It can be seen that the photoelectric conversion efficiency was improved by about 30% compared to the dye-sensitized solar cells of Comparative Examples 4 and 5, which formed the electrodes, which easily penetrated the aligned mesoporous carbon electrode catalyst. Indicates that it can.

Claims (17)

A dye-sensitized solar cell comprising a working electrode and a counter electrode,
The counter electrode is a dye-sensitized solar cell, characterized in that it comprises a mesoporous carbon electrode formed on a transparent substrate. The method of claim 1,
The mesoporous carbon electrode is a dye-sensitized solar cell, characterized in that formed using an ordered mesoporous carbon electrode catalyst having a structure of interconnecting pores of 4 to 22 nm. The method of claim 2,
The mesoporous carbon electrode catalyst is a dye-sensitized solar cell, characterized in that it has an amorphous carbon wall. The method of claim 1,
The mesoporous carbon electrode is a dye-sensitized solar cell, characterized in that to provide a catalytic reaction portion for the reduction reaction of tri iodide. The method of claim 1,
The working electrode is a dye-sensitized solar cell, characterized in that the electrode is prepared by the dye is adsorbed on the nano-oxide layer formed on a transparent substrate. The method of claim 1,
The dye-sensitized solar cell is a dye-sensitized solar cell, characterized in that it comprises a liquid electrolyte or a semi-solid electrolyte. Preparing a counter electrode by forming a mesoporous carbon electrode on the transparent substrate on which the transparent conductive oxide layer is formed (step 1);
Forming a nano oxide layer on a transparent substrate on which the transparent conductive oxide layer is formed and adsorbing a dye to prepare a working electrode (step 2); And
Injecting an electrolytic solution after bonding the counter electrode manufactured in step 1 and the working electrode prepared in step 2 to be bonded to each other (step 3);
Dye-sensitized solar cell manufacturing method comprising a. The method of claim 7, wherein
The mesoporous carbon electrode is a method of manufacturing a dye-sensitized solar cell, characterized in that formed using an aligned mesoporous carbon electrode catalyst having a structure of interconnecting pores of 4 to 22 nm. The method of claim 8,
The mesoporous carbon electrode catalyst has a method of manufacturing a dye-sensitized solar cell, characterized in that it has an amorphous carbon wall. The method of claim 7, wherein
The dye is a method for producing a dye-sensitized solar cell, characterized in that the ruthenium-based dye. The method of claim 7, wherein
The transparent conductive oxide layer is fluorine-doped tin oxide (FTO), indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), aluminum zinc oxide (AZO), indium tin oxide-silver Indium tin oxide (ITO-Ag-ITO), indium zinc oxide-silver-indium zinc oxide (IZO-Ag-IZO), indium zinc oxide-silver-indium zinc tin oxide (IZTO-Ag-IZTO) and aluminum zinc Method of manufacturing a dye-sensitized solar cell, characterized in that formed of a transparent conductive oxide selected from the group consisting of oxide-silver-aluminum zinc oxide (AZO-Ag-AZO). The method of claim 7, wherein
The transparent substrate is a glass substrate or a transparent plastic substrate manufacturing method of the dye-sensitized solar cell, characterized in that. The method of claim 7, wherein
The nano oxide layer is a method of manufacturing a dye-sensitized solar cell, characterized in that formed by applying a coating composition containing titanium dioxide. As a counter electrode of a dye-sensitized solar cell,
The counter electrode is a counter electrode of a dye-sensitized solar cell, characterized in that comprising a mesoporous carbon electrode formed on a transparent substrate. The method of claim 14,
The counter electrode is a counter electrode of a dye-sensitized solar cell, characterized in that further comprises the transparent conductive oxide layer deposited between the transparent substrate and the mesoporous carbon electrode. The method of claim 14,
The mesoporous carbon electrode is a counter electrode of a dye-sensitized solar cell, characterized in that formed using an aligned mesoporous carbon electrode catalyst having a structure of interconnecting pores of 4 to 22 nm. The method of claim 16,
The counter electrode of the dye-sensitized solar cell, characterized in that the mesoporous carbon electrode catalyst has an amorphous carbon wall.

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