KR20120130436A - Solar cell with separator and method of the manufacturing of the same - Google Patents

Solar cell with separator and method of the manufacturing of the same Download PDF

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KR20120130436A
KR20120130436A KR1020110048354A KR20110048354A KR20120130436A KR 20120130436 A KR20120130436 A KR 20120130436A KR 1020110048354 A KR1020110048354 A KR 1020110048354A KR 20110048354 A KR20110048354 A KR 20110048354A KR 20120130436 A KR20120130436 A KR 20120130436A
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South Korea
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separator
solar cell
layer
substrate
electrolyte
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KR1020110048354A
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Korean (ko)
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박병은
Original Assignee
서울시립대학교 산학협력단
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Priority to KR1020110048354A priority Critical patent/KR20120130436A/en
Publication of KR20120130436A publication Critical patent/KR20120130436A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0224—Electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/542—Dye sensitized solar cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/549—Organic PV cells

Abstract

PURPOSE: A solar cell with a separator and a manufacturing method thereof are provided to allow electrons to smoothly flow in a lower electrode and an upper electrode by accelerate the oxidation and reduction reaction of iodine comprising an electrolyte. CONSTITUTION: An electrolyte layer(3) is arranged between an upper structure and a lower structure. The electrolyte layer includes a separator(31). The separator is made of a material which can easily pass and absorb the electrolyte. Zeolite is absorbed to or mixed with the separator. The lower structure includes a bottom electrode(2) which is formed on a substrate.

Description

Solar cell with separator and its manufacturing method {Solar cell with separator and method of the manufacturing of the same}

The present invention relates to a solar cell, and more particularly, to a solar cell having a separator that can be applied to a dye-sensitized solar cell to provide a higher photoelectric conversion efficiency and a method of manufacturing the same.

Recently, as interest in clean energy has increased, interest in generating power using solar light has also increased.

Devices that produce power using solar energy are commonly referred to as solar cells or solar cells. Solar cells can be broadly classified into silicon solar cells and dye-sensitized solar cells according to their operation methods.

Among these, dye-sensitized solar cells are attracting attention as next-generation solar cells because they can be manufactured at low cost, the materials used for manufacturing solar cells are environmentally friendly, and CO 2 emission is low during the manufacturing of solar cells. .

However, in the case of dye-sensitized solar cells, only the light of the wavelength absorbed by the dye molecule is used for photoelectric conversion. The dye-based solar cell uses silicon because the dye molecule shows a significantly lower absorption at the red wavelength than the absorption spectrum of the general silicon. There is a disadvantage that the photoelectric conversion efficiency is lower than the battery.

Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a solar cell having a separator and a method of manufacturing the same, which can improve photoelectric conversion efficiency of a dye-sensitized solar cell.

Another object of the present invention is to provide a solar cell having a separator and a method of manufacturing the same, which are flexible, more environmentally friendly, and can significantly lower manufacturing costs.

A solar cell having a separator according to the first aspect of the present invention for realizing the above object has a lower structure and an upper structure, an electrolyte layer between the lower structure and the upper structure, the electrolyte layer is an electrolyte The separator is made of a material that is easily absorbed or passed through, and the separator is characterized in that the zeolite is mixed or adsorbed.

In addition, the lower structure is characterized by comprising a first substrate and a lower electrode formed on the substrate.

In addition, the first substrate is characterized in that the paper or the organic substrate.

In addition, the lower electrode is characterized in that the conductive organic material.

In addition, the lower electrode is characterized in that the mixture of a conductive organic material and a conductive inorganic material.

In addition, the separator is characterized in that consisting of paper.

In addition, the separator is characterized in that consisting of a woven or non-woven fabric.

In addition, the separator is characterized in that the dye is further adsorbed.

In addition, the metal nanoparticles or carbon nanoparticles are further adsorbed on the separator.

The solar cell having a separator according to the second aspect of the present invention has a lower structure and an upper structure, an electrolyte layer is provided between the lower structure and the upper structure, and the electrolyte layer is configured with a separator. The separator is a first layer made of a material that is easily absorbed or passed through an electrolyte, a third layer made of a material that is easily absorbed or passed through an electrolyte, and between the first layer and the third layer. In addition, it is characterized by comprising a second layer made of a material containing a zeolite.

In addition, the lower structure is characterized by comprising a first substrate and a lower electrode formed on the substrate.

In addition, the first substrate is characterized in that the paper or the organic substrate.

In addition, the lower electrode is characterized in that the conductive organic material.

In addition, the lower electrode is characterized in that the mixture of a conductive organic material and a conductive inorganic material.

In addition, the first layer or the third layer is characterized in that consisting of paper.

In addition, the first layer or the third layer is characterized in that consisting of a woven or non-woven fabric.

In addition, the dye is further adsorbed on the first layer or the second layer.

In addition, the metal nanoparticles or carbon nanoparticles are further adsorbed to the second layer.

The solar cell having a separator according to the third aspect of the present invention has a lower structure and an upper structure, an electrolyte layer is provided between the lower structure and the upper structure, and the electrolyte layer is configured with a separator. The lower structure may include a lower substrate, a lower electrode formed on the lower substrate, and a porous layer formed on the lower electrode.

In addition, the porous layer is characterized in that composed of a material containing a zeolite.

In addition, the porous layer is characterized in that it further comprises a metal nanoparticles or carbon nanoparticles.

In addition, the porous layer is characterized in that it comprises a mixture of zeolite powder and conductive organic material.

A solar cell having a separator according to a fourth aspect of the present invention has a lower structure and an upper structure, an electrolyte layer is provided between the lower structure and the upper structure, and the electrolyte layer is configured with a separator. The lower structure includes a lower substrate and a lower electrode formed under the lower substrate, and zeolite is mixed or adsorbed on the lower substrate.

In addition, the metal nanoparticles or carbon nanoparticles are further mixed or adsorbed on the lower substrate.

A solar cell having a separator according to a fifth aspect of the present invention has a lower structure and an upper structure, an electrolyte layer is provided between the lower structure and the upper structure, and the electrolyte layer is configured with a separator. The lower structure includes a lower substrate, and a mixture of a conductive organic material and zeolite is adsorbed to the lower substrate.

According to a sixth aspect of the present invention, there is provided a method of manufacturing a solar cell having a separator, including: forming a lower structure, forming an upper sphere structure, and preparing a separator for easily absorbing or passing an electrolyte. Adsorbing the zeolite to the separator, combining the lower structure and the upper structure with the separator interposed therebetween, and injecting and sealing the electrolyte in the upper and lower sides of the separator. .

In addition, the separator is characterized in that it further comprises the step of adsorbing metal nanoparticles or carbon nanoparticles.

In addition, the separator is characterized in that it further comprises the step of adsorbing the dye.

According to a seventh aspect of the present invention, there is provided a method of manufacturing a solar cell having a separator, including forming a lower structure, forming an upper sphere structure, forming a separator, and having the separator interposed therebetween. And an upper structure, and a step of injecting and sealing an electrolyte on the upper and lower sides of the separator, wherein the forming of the separator comprises: forming a first layer for easily absorbing or passing the electrolyte; And forming a second layer including zeolite powder on the first layer, and forming a third layer on the second layer to easily absorb or pass the electrolyte.

The forming of the lower structure may include preparing a first substrate and forming a lower electrode on the first substrate, wherein the lower electrode may be a conductive organic solution or a mixed solution of a conductive organic material and a conductive inorganic material. Forming a lower electrode layer on the first substrate using a, it is characterized in that the solvent is evaporated by applying heat to the lower electrode layer.

The forming of the substructure may include preparing a first substrate, preparing a conductive organic solution, adsorbing the organic solution to the first substrate, and applying heat to the first substrate to evaporate the organic solvent. It is characterized by comprising a.

In addition, it characterized in that it further comprises the step of mixing the conductive inorganic powder to the conductive organic solution.

In addition, it characterized in that it further comprises the step of mixing the zeolite powder in the conductive organic solution.

In addition, the second layer is characterized in that it further comprises the step of adsorbing metal nanoparticles or carbon nanoparticles.

In addition, the step of adsorbing the dye to the second layer or the third layer is characterized in that it is configured to further comprise.

According to an eighth aspect of the present invention, there is provided a method of manufacturing a solar cell having a separator, including forming a lower structure, forming a top sphere structure, forming a separator, and having the separator interposed therebetween. And an upper structure, and a step of injecting and sealing an electrolyte into the upper and lower sides of the separator, wherein the forming of the lower structure comprises preparing a lower substrate, and lowering the lower substrate. Forming an electrode, and adsorbing zeolite on the lower substrate.

In addition, it characterized in that it further comprises the step of adsorbing metal nanoparticles or carbon nanoparticles on the lower substrate.

According to a ninth aspect of the present invention, there is provided a method of manufacturing a solar cell having a separator, forming a lower structure, forming an upper sphere structure, forming a separator, and having the separator interposed therebetween. And combining the upper structure, and injecting and sealing the electrolyte on the upper and lower sides of the separator, wherein the forming the lower structure comprises preparing a lower substrate, and mixing the conductive organic material and the zeolite powder. To form a mixed solution, adsorbing the mixed solution to the lower substrate, and applying heat to the lower substrate to evaporate the solvent.

In addition, it characterized in that it further comprises the step of mixing the metal nanoparticles or carbon nanoparticles in the mixed solution.

According to the present invention having the above-described configuration, a separator is provided in the electrolyte layer of the dye-sensitized solar cell. The separator promotes oxidation and reduction reactions of the iodine constituting the electrolyte to facilitate the flow of electrons to the lower electrode and the upper electrode.

In addition, the solar cell according to the present invention uses a paper or an organic substrate instead of a conventional semiconductor substrate. Therefore, it is not necessary to use an expensive semiconductor substrate, which can significantly lower the manufacturing price.

1 is a view for explaining the basic concept of the present invention, which is a cross-sectional view showing the structure of a general dye-sensitized solar cell.
2 is a cross-sectional view showing the structure of a solar cell according to the first embodiment of the present invention.
3 is a cross-sectional view showing the structure of a solar cell according to a second embodiment of the present invention.
4 is a cross-sectional view showing the structure of a solar cell according to a third embodiment of the present invention.
5 is a cross-sectional view showing the structure of a solar cell according to a fourth embodiment of the present invention.
6 is a cross-sectional view showing the structure of a solar cell according to a fifth embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the embodiments described below exemplarily illustrate one preferred embodiment of the present invention, and examples of such embodiments are not intended to limit the scope of the present invention. It will be readily understood by those skilled in the art that the present invention can be practiced in various ways without departing from the spirit.

First, the basic concept of the present invention will be described.

1 is a cross-sectional view showing the structure of a general dye-sensitized solar cell.

In the dye-sensitized solar cell, a lower structure and an upper structure are formed with an electrolyte layer 3 interposed therebetween.

The lower structure includes a lower substrate 1 made of, for example, glass, and a lower electrode 2 formed on the lower substrate 1. The lower electrode 2 is made of platinum Pt, for example.

The upper structure includes, for example, an upper substrate 6 made of glass or the like, an upper electrode 5 formed on the upper substrate 6 and a porous layer 4 made of, for example, TiO 2 . The upper electrode 5 is made of, for example, a transparent electrode such as SnO 2 , and for example, ruthenium (Ru) dye is adsorbed to the porous layer 4.

In the solar cell having the above structure, when external light is incident through the upper electrode 5, the incident light is transmitted to the porous layer 4 through the upper substrate 6 and the upper electrode 5. When external light is transmitted in this way, dye molecules adsorbed on the porous layer 4 are excited. In this excited state, electrons are injected from the dyes into the porous layer 4, and the electrons thus injected are diffused from the porous layer 4 to the upper electrode 5.

On the other hand, electrons are provided from the electrolyte for dye molecules which have lost electrons. The electrolyte consists of, for example, iodine, which is oxidized to triiodide while providing electrons to the dye. The triiodide that has lost electrons is diffused to the surface of the anode, i.e., the lower electrode 2, receives electrons flowing through the external circuit, and is reduced back to iodine, and the reduced iodine is again reduced to the cathode, that is, the upper electrode 5 The diffusion moves to the side.

In the dye-sensitized solar cell described above, in order to increase the photoelectric conversion efficiency, it is necessary to supply sufficient electrons to the dye adsorbed to the porous layer 4. In addition, this requires a smooth supply of electrons to the electrolyte that provides electrons to the dye, that is, triiodide.

In the present invention, a separator is provided inside the electrolyte layer (3). This separator contains zeolite. Zeolite is a three-dimensional inorganic polymer in which silicon (Si) and aluminum (Al) are connected through four cross-linked oxygen, respectively, and have negative charge characteristics as aluminum bonds with four oxygens. Therefore, the zeolite layer easily binds to the upper triiodide, i.e., cation, from which electrons have been deprived of the dye, thereby providing electrons to the cations smoothly, and acting as a crosslinking agent that absorbs electrons from the lower electrolyte.

Therefore, when the partition wall is formed inside the electrolyte layer, preferably in the middle portion, using zeolite, the flow of electrons from the lower electrode 2 to the upper electrode 5 is smooth, thereby improving the photoelectric conversion efficiency of the solar cell. Will be.

2 is a cross-sectional view showing the structure of a solar cell according to a first embodiment of the present invention for realizing the above concept. In FIG. 1, the separator 31 is provided in the electrolyte layer 3 into which the electrolyte is injected. This separator 31 is made of paper, for example. Here, the paper includes any paper made from pulp as a main raw material, and a material containing such paper, such as a material in which a heat resistant material such as ceramic or silicon has penetrated the paper. As the separator 31, a fiber material such as woven fabric or nonwoven fabric can be used.

Zeolite is adsorbed to the separator 31. In addition, in a preferred embodiment, the zeolite powder is mixed with a conductive adhesive or the like and then coated on the upper side or the lower side of the separator 31 to form a zeolite layer. In addition, the zeolite may preferably include metal nanoparticles such as gold, silver, copper, or carbon nanoparticles.

Since the other parts are substantially the same as in Fig. 1, the same parts are given the same reference numerals, and detailed description thereof will be omitted.

In this embodiment, the separator 31 acts as a virtual electrode while the iodine and the triiodide are disposed adjacent to the separator 31 provided in the middle of the electrolyte layer 3. . That is, the separator 31 acts as an anode for the upper electrode 5 and a cathode for the lower electrode 2.

In addition, the zeolite adsorbed on the separator 31 oxidizes and reduces the reaction between iodine and triiodide around the separator 31 by facilitating electron transfer between the electrolytes present above and below the separator 31. This will happen. That is, the triiodide diffused and moved downward from the upper electrode 5 is reduced to iodine by taking electrons from the zeolite of the separator 31 or lower iodine, and the iodine diffused and moved upward from the lower electrode 2. In the separator 31, the electrons are lost to the zeolite or the upper iodide and then oxidized to triiodide.

The reduced and oxidized iodine and triiodide are then diffused and moved toward the upper electrode 5 and the lower electrode 2.

Therefore, in this embodiment, the oxidation-reduction reaction between iodine and triiodide in the electrolyte layer 3 is smoothly performed, and thus the electron supply to the dye is very active. That is, the movement of electrons from the lower electrode 2 to the upper electrode 5 becomes very active, thereby increasing the amount of current output from the solar cell.

In the case of manufacturing the solar cell according to the present embodiment, first, a lower structure composed of the lower substrate 1 and the lower electrode 2 is formed in the same manner as in the conventional method. In the same manner as in the conventional method, an upper structure including the upper substrate 6 and the upper electrode 5 porous layer 4 is formed, and then dye is adsorbed onto the porous layer 4.

In addition, the upper and lower structures are coupled to each other with the separator 31 formed according to the above method, and the electrolyte is injected and sealed into the electrolyte layer 3 to complete the solar cell.

In addition, in one preferred embodiment of the present invention, dye is adsorbed together with the zeolite powder on the separator 31.

When the dye is adsorbed to the separator 31, external light that is not absorbed by the dye adsorbed to the porous layer 4 of the upper layer is absorbed by the dye adsorbed to the separator 31. As described above, the dye that absorbs the light generates electrons while being excited, and the generated electrons are transferred to the triiodide which is diffused and moved from the upper electrode 5 side to the lower side to reduce it to iodine. do,

And the dye which lost an electron in this way absorbs an electron from the iodine diffused and moved from the lower electrode 2 side to an upper side.

That is, in the present embodiment, the electrons transferred between the iodine under the separator 31 and the triiodine above the separator 31 are very smoothly formed by the dye adsorbed on the separator 31. That is, in the solar cell, the flow of electrons from the lower electrode 2 to the upper electrode 5 is smooth, thereby increasing the efficiency of the solar cell.

In addition, in the case of manufacturing the solar cell according to the present embodiment, a zeolite solution or powder is first mixed with a dye solution to prepare a mixed solution. In addition, the mixed solution is immersed for a predetermined time in a mixed solution, for example, for a predetermined time to sufficiently adsorb the mixed solution to the separator 31. The zeolite and the dye are adsorbed onto the separator 31 by adding a predetermined temperature or more to the separator 31 to evaporate the solution.

Other processes are substantially the same as the embodiment shown in FIG.

Of course, also in this embodiment, the metal nanoparticles or carbon nanoparticles may be preferably mixed with the zeolite.

3 is a cross-sectional view showing the structure of a solar cell according to a second embodiment of the present invention. In this embodiment, the separator 40 is provided in the middle part of the electrolyte layer 3, and the separator 40 has three laminated structures 41, 42, and 43. As shown in FIG.

In the present embodiment, the first and third layers 41 and 43 of the separator 40 are made of paper, woven or nonwoven fabric, and the like, and the second layer 42 is a zeolite layer. It consists of. This second layer 42 is formed by laminating zeolite powder. In this case, it is also preferable to form a mixture layer in which zeolite powder and metal nanoparticles or carbon nanoparticles are mixed as the second layer 42.

In the modified embodiment of FIG. 3, dye is adsorbed on the first layer 41 or the second layer 42.

In the present embodiment, the separator 40 provided in the electrolyte layer is formed by forming a zeolite layer of zeolite powder between the first and third layers 41 and 43 which are free to absorb and pass through the electrolyte, such as paper or nonwoven fabric. It is implemented as a zeolite layer.

In the present embodiment, it is possible to employ a zeolite powder in a stable and large amount compared to the embodiment of FIG. Accordingly, the supply of electrons by the zeolite and the diffusion movement of electrons through the electrolyte become more active, thereby realizing a solar cell having high photoelectric conversion efficiency.

4 is a cross-sectional view showing the structure of a solar cell according to a third embodiment of the present invention. In FIG. 4, paper is used as the lower substrate 61. The lower electrode 62 is formed on the lower substrate 61. As the lower electrode 62, a mixture of conductive organics, conductive organics and conductive inorganics is used in addition to the conductive metal.

In the case of forming the lower electrode 62 made of a conductive metal on the paper substrate 61, for example, a vacuum deposition method is used. In the case of using a conductive organic material or a mixture of conductive organic materials and conductive inorganic materials on the paper substrate 61, an inkjet method, a screen printing method, or a spin coating method is used.

In addition, an organic substrate may be used as the lower substrate 61. The organic materials usable here include polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyetheretherketone (PEEK), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polychlorinated Vinyl (PVC), Polyethylene (PE), Ethylene Copolymer, Polypropylene (PP), Propylene Copolymer, Poly (4-methyl-1-pentene) (TPX), Polyarylate (PAR), Polyacetal (POM) , Polyphenylene oxide (PPO), polysulfone (PSF), polyphenylene sulfide (PPS), polyvinylidene chloride (PVDC), polyvinyl acetate (PVAC), polyvinyl alcohol (PVAL), polyvinyl acetal, polystyrene (PS), AS resin, ABS resin, polymethyl methacrylate (PMMA), fluorine resin, phenol resin (PF), melamine resin (MF), urea resin (UF), unsaturated polyester (UP), epoxy resin ( EP), diallyl phthalate resin (DAP), polyurethane (PUR), polyamide (PA), silicone resin (SI) or mixtures and compounds thereof. Available.

In the case of using an organic material as the lower substrate 61, a conductive organic material, or a mixture of conductive organic materials and conductive inorganic materials is preferably used as the lower electrode 62.

The electrolyte layer 3 is provided with a separator 60. The separator 50 may be of any structure mentioned in the above embodiment.

In addition, since the other parts are substantially the same as the above-described embodiment, the same parts are given the same reference numerals, and detailed description thereof will be omitted.

5 is a cross-sectional view showing the structure of a solar cell according to a fourth embodiment of the present invention.

In FIG. 5, in the embodiment of FIG. 4, the porous layer 63 is formed on the lower electrode 62. The porous layer 63 is composed of zeolite or a mixture of zeolites and metal nanoparticles or carbon nanoparticles.

In another variation, the porous layer 63 is composed of a mixture of zeolite and conductive organic material, or a mixture of zeolite and conductive organic material and metal nanoparticles or carbon nanoparticles. At this time, the conductive organic material is used to stably bond the zeolite powder or the like onto the lower electrode 62. That is, in the case of forming the porous layer 63 using such a mixture, the zeolite powder or zeolite solution is mixed with the conductive organic solution, and then the ink layer or the screen printing method is used to form the porous layer on the lower electrode 62. 63), and then the porous layer 63 can be easily formed through a method of evaporating the solvent by applying heat below a predetermined temperature.

In the present embodiment, when the electrolyte is injected into the electrolyte layer 3, the electrolyte is adsorbed to the porous layer 63. That is, the contact area of zeolite or zeolite powder with electrolyte becomes very large. This in turn provides the effect of greatly increasing the contact area between the lower electrode layer 12 and the electrolyte.

Therefore, when the porous layer 63 including the zeolite is formed on the lower electrode layer 12, the triiodide having a positive charge is very quickly and smoothly coupled to the zeolite having a negative charge, and the lower electrode is connected to the triiodide. By supplying a large amount of electrons from (62), the reduction reaction of triiodide is made very quickly. As a result, this facilitates the flow of electrons from the lower electrode 62 to the upper electrode layer 5, thereby greatly improving the photoelectric conversion efficiency of the solar cell.

Since the other parts are the same as in the above-described embodiment, the same reference numerals are assigned to substantially the same parts, and detailed description thereof will be omitted.

6 is a cross-sectional view showing the structure of a solar cell according to a fifth embodiment of the present invention.

In the present embodiment, the lower substrate 61 is made of paper, and the lower electrode 62 is formed below the lower substrate 61. The lower substrate 61 adsorbs zeolite or a mixture of zeolite and metal nanoparticles or carbon nanoparticles.

In this embodiment, the lower substrate 61 is provided above the lower electrode 62. Therefore, when the electrolyte is injected into the electrolyte layer 3, the electrolyte is adsorbed to the lower substrate 61.

Also in this embodiment, the powder of zeolite or the like adsorbed on the lower substrate 61 increases the contact area between the lower electrode 62 and the electrolyte so that electrons can be easily provided to the electrolyte.

The embodiment according to the present invention has been described above. However, the present invention is not limited to the above-described embodiments and can be implemented in various modifications without departing from the technical spirit of the present invention.

1: lower substrate, 2: lower electrode,
3: electrolyte layer, 4: porous layer,
5: upper electrode, 6: upper substrate.

Claims (39)

Has a lower structure and a superstructure,
An electrolyte layer is provided between the lower structure and the upper structure,
The electrolyte layer is configured to include a separator made of a material that is easily absorbed or passed through the electrolyte,
The separator is a solar cell having a separator, characterized in that the zeolite is mixed or adsorbed. The method of claim 1,
The lower structure is a solar cell having a separator comprising a first substrate and a lower electrode formed on the substrate. The method of claim 2,
The first substrate is a solar cell having a separator, characterized in that the paper or organic substrate. The method of claim 2,
The lower electrode is a solar cell having a separator, characterized in that the conductive organic material. The method of claim 2,
The lower electrode is a solar cell having a separator, characterized in that a mixture of a conductive organic material and a conductive inorganic material. The method of claim 1,
The separator is a solar cell having a separator, characterized in that consisting of paper. The method of claim 1,
The separator is a solar cell having a separator, characterized in that consisting of woven or non-woven fabric. The method of claim 1,
A solar cell having a separator, characterized in that the dye is further adsorbed to the separator. The method of claim 1,
Solar cell provided with a separator, characterized in that the metal nanoparticles or carbon nanoparticles are further adsorbed to the separator. Has a lower structure and a superstructure,
An electrolyte layer is provided between the lower structure and the upper structure,
The electrolyte layer is configured with a separator,
The separator is formed between a first layer made of a material that is easily absorbed or passed through an electrolyte, a third layer made of a material that is easily absorbed or passed through an electrolyte, and between the first layer and the third layer. And a second layer made of a material containing zeolite. The method of claim 10,
The lower structure is a solar cell having a separator comprising a first substrate and a lower electrode formed on the substrate. The method of claim 11,
The first substrate is a solar cell having a separator, characterized in that the paper or organic substrate. The method of claim 11,
The lower electrode is a solar cell having a separator, characterized in that the conductive organic material. The method of claim 11,
The lower electrode is a solar cell having a separator, characterized in that a mixture of a conductive organic material and a conductive inorganic material. The method of claim 11,
The first layer or the third layer is a solar cell having a separator, characterized in that consisting of paper. The method of claim 11,
The first layer or the third layer is a solar cell having a separator, characterized in that consisting of a woven or non-woven fabric. The method of claim 11,
The solar cell with a separator, characterized in that the dye is further adsorbed to the first layer or the second layer. The method of claim 11,
The solar cell with a separator, characterized in that the metal nanoparticles or carbon nanoparticles are further adsorbed to the second layer. Has a lower structure and a superstructure,
An electrolyte layer is provided between the lower structure and the upper structure,
The electrolyte layer is configured with a separator,
The lower structure and the lower substrate,
A lower electrode formed on the lower substrate,
The solar cell having a separator, characterized in that comprising a porous layer formed on the lower electrode. 20. The method of claim 19,
The porous layer is a solar cell having a separator, characterized in that consisting of a material containing a zeolite. 21. The method of claim 20,
The porous layer is a solar cell having a separator, characterized in that further comprises a metal nanoparticles or carbon nanoparticles. 20. The method of claim 19,
The porous layer is a solar cell having a separator, characterized in that comprising a mixture of zeolite powder and conductive organic material. Has a lower structure and a superstructure,
An electrolyte layer is provided between the lower structure and the upper structure,
The electrolyte layer is configured with a separator,
The lower structure includes a lower substrate and a lower electrode formed under the lower substrate,
Zeolite is mixed or adsorbed on the lower substrate solar cell having a separator. 24. The method of claim 23,
The solar cell having a separator, characterized in that the metal nanoparticles or carbon nanoparticles are further mixed or adsorbed on the lower substrate. Has a lower structure and a superstructure,
An electrolyte layer is provided between the lower structure and the upper structure,
The electrolyte layer is configured with a separator,
The lower structure includes a lower substrate, and the lower substrate is a solar cell having a separator, characterized in that the mixture of a conductive organic material and zeolite is adsorbed. Forming a substructure,
Forming a superficial structure,
Preparing a separator that easily absorbs or passes the electrolyte,
Adsorbing zeolite to the separator,
Coupling a lower structure and an upper structure with the separator interposed therebetween,
The method of manufacturing a solar cell having a separator, characterized in that it comprises a step of injecting and sealing the electrolyte on the upper and lower sides of the separator. The method of claim 26,
Method for manufacturing a solar cell with a separator characterized in that it further comprises the step of adsorbing metal nanoparticles or carbon nanoparticles to the separator. 28. The method of claim 27,
Method for manufacturing a solar cell having a separator characterized in that it further comprises the step of adsorbing the dye on the separator. Forming a substructure,
Forming a superficial structure,
Forming separators,
Coupling a lower structure and an upper structure with the separator interposed therebetween,
Injecting and sealing the electrolyte on the upper and lower sides of the separator, and configured
The separator forming step may include forming a first layer for easily absorbing or passing the electrolyte;
Forming a second layer comprising zeolite powder on the first layer,
Forming a third layer for easily absorbing or passing the electrolyte on the second layer, characterized in that it comprises a solar cell having a separator. 30. The method of claim 29,
The forming of the lower structure includes preparing a first substrate and forming a lower electrode on the first substrate,
The lower electrode is a solar panel having a separator, characterized in that the lower electrode layer is formed on the first substrate using a conductive organic solution or a mixed solution of conductive organic and conductive inorganic materials, and heat is applied to the lower electrode layer. Method for producing a battery. 30. The method of claim 29,
The forming of the substructure may include preparing a first substrate, preparing a conductive organic solution, adsorbing the organic solution to the first substrate, and applying heat to the first substrate to evaporate the organic solvent. Method for manufacturing a solar cell provided with a separator, characterized in that provided with. 32. The method of claim 31,
Method for manufacturing a solar cell having a separator characterized in that it further comprises the step of mixing a conductive inorganic powder to the conductive organic solution. 30. The method of claim 29,
Method for manufacturing a solar cell with a separator characterized in that it further comprises the step of mixing the zeolite powder in the conductive organic solution. 30. The method of claim 29,
The method of manufacturing a solar cell having a separator characterized in that it further comprises the step of adsorbing metal nanoparticles or carbon nanoparticles to the second layer. 30. The method of claim 29,
The method of manufacturing a solar cell with a separator characterized in that it further comprises the step of adsorbing a dye in the second layer or the third layer. Forming a substructure,
Forming a superficial structure,
Forming separators,
Coupling a lower structure and an upper structure with the separator interposed therebetween,
Injecting and sealing the electrolyte on the upper and lower sides of the separator, and configured
The lower structure forming step
Preparing a lower substrate;
Forming a lower electrode under the lower substrate;
And a step of adsorbing zeolite to the lower substrate. 37. The method of claim 36,
The method of manufacturing a solar cell having a separator characterized in that it further comprises the step of adsorbing metal nanoparticles or carbon nanoparticles on the lower substrate. Forming a substructure,
Forming a superficial structure,
Forming separators,
Coupling a lower structure and an upper structure with the separator interposed therebetween,
Injecting and sealing the electrolyte on the upper and lower sides of the separator, and configured
The lower structure forming step
Preparing a lower substrate;
Mixing the conductive organic material and the zeolite powder to form a mixed solution,
Adsorbing the mixed solution to a lower substrate;
The method of manufacturing a solar cell with a separator characterized in that it comprises a step of evaporating the solvent by applying heat to the lower substrate. The method of claim 38,
Method of manufacturing a solar cell with a separator characterized in that it further comprises the step of mixing the metal nanoparticles or carbon nanoparticles in the mixed solution.
KR1020110048354A 2011-05-23 2011-05-23 Solar cell with separator and method of the manufacturing of the same KR20120130436A (en)

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