KR101293466B1

KR101293466B1 - Dye Sensitized Solar Cell for applying a Reflection Film of Technical Type

Info

Publication number: KR101293466B1
Application number: KR1020110054399A
Authority: KR
Inventors: 김성진
Original assignee: 주식회사 상보
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2013-08-06
Also published as: KR20120135596A

Abstract

The present invention discloses a technique related to renewable energy. That is, the dye-sensitized solar cell to which the functional reflective film according to the embodiment of the present invention is applied includes titanium dioxide (TiO 2), PMMA (polymethyl methacrylate) and polyacrylate material having the same particle size of 5 μm to 30 μm. The light diffusion film formed evenly mixed reflects the lamp light source generated by the natural light or the solar simulator without any external loss as it is, thereby maximizing the light efficiency.
In addition, the present invention by selecting the dye-sensitized solar cell excellent in light efficiency through the experiment to evaluate the performance of the light diffusion film containing PMMA (polymethyl methacrylate) having the same particle size of 5㎛ 30㎛, It contributes to the manufacture, production and sales of these excellent dye-sensitized solar cells in large quantities, thereby contributing to further development of corporate profit-making and renewable energy-related industries.

Description

Dye Sensitized Solar Cell for applying a Reflection Film of Technical Type

The present invention relates to a technology related to renewable energy, and more particularly, to a dye-sensitized solar cell using a functional reflecting film that reflects a lamp light source generated by natural light or a solar simulator without external loss using a light diffusing film.

Until now, the development of solar cell technology around the world has been researched to improve conversion efficiency and lower power generation cost. Power generation costs tend to depend on market size and production technology, and conversion efficiency tends to depend on the development of new structures, materials, processes and theories.

Although the history of silicon solar cells goes back more than 50 years, although the theory of cell efficiency and solar cells has advanced rapidly in recent decades, the engineering needs to be solved to improve the quality of life of mankind recently announced by the American Academy of Engineering. Among the challenges, economically viable solar energy is on the rise.

As the technology of the solar cell is rapidly developed, the recognition of the limitation of the conversion efficiency becomes clear, and various solutions have been proposed accordingly. In this background, important technologies for overcoming the limit technology are closely related to nanotechnology, and research and development of solar cells using nanotechnology are centered around the world as an alternative to solve the next generation energy problem.

Global environmental problems and energy problems such as warming due to the large consumption of fossil fuels and air pollution are the most important tasks for humankind. Solar cells are transforming clean, infinite solar energy directly into the most efficient form of energy, so they are available anywhere on the planet and are expected to be the most fundamental solution to energy and the environment.

However, it is important to secure price competitiveness for widespread deployment of solar cells, but above all, to mass-produce product efficiency for cost and to distribute it to consumers or buyers in large quantities solves global environmental and energy problems. It would be a way to meet the purchasing needs of consumers or buyers.

Dye-sensitized solar cell applying the functional reflective film of the present invention was devised to solve the problems of the prior art, the first object of the present invention is titanium dioxide (TiO2), the same particle size of 5㎛ to 30㎛ This is to maximize light efficiency by reflecting the lamp light source generated by the natural light or the solar simulator without external loss by the light diffusing film formed by mixing PMMA (polymethyl methacrylate) and polyacrylate material.

In addition, a second object of the present invention is a dye-sensitized solar cell to which a functional reflective film is applied through an experiment for evaluating performance of a light diffusing film containing PMMA (polymethyl methacrylate) having the same particle size of 5 μm to 30 μm. By screening out, it contributes to the manufacture, production and sales of dye-sensitized solar cells with excellent light efficiency in large quantities, thereby contributing to the further development of corporate profit-making and renewable energy-related industries.

The present invention for achieving the above object includes the following configuration.

That is, in the dye-sensitized solar cell applying the functional reflective film provided with natural light or lamp light source according to an embodiment of the present invention: ITO (Indium Tin Oxide) or FTO (Fluorine-doped Tin Oxide) material on the light diffusion film Stacked first transparent electrodes; A second transparent electrode stacked on an indium tin oxide (ITO) or a fluorine-doped tin oxide (FTO) material on the transparent substrate; A nano oxide layer stacked on the first transparent electrode and adsorbing the dye injected through the second transparent electrode; A counter electrode which is opposite to the nano oxide layer and is formed when one selected from PT (platinum), CNT (carbon nanotube), graphene, carbon-based material, and conductive polymer material is stacked on the second transparent electrode; And an electrolyte layer formed as a selected one of the iodine redox liquid electrolyte and the polymer electrolyte is filled between the nano oxide layer and the counter electrode space, wherein the light diffusion film includes titanium dioxide (TiO 2) and 5 μm to It is prepared by mixing PMMA (polymethyl methacrylate) and polyacrylate having any one of the same particle size selected from 30㎛ in a weight ratio of 6: 0.5 to 1.5: 0.5 to 1.5, when transmitting natural light or lamp light It is characterized by having a light efficiency of 4 to 5ŋ%.

Dye-sensitized solar cell applying the functional reflecting film of the present invention is a light diffusion film formed by evenly mixing titanium dioxide (TiO2), PMMA (polymethyl methacrylate) and polyacrylate material having the same particle size of 5㎛ 30㎛ By reflecting the lamp light source generated by the natural light or the solar simulator without external loss as it is, the first effect of maximizing the light efficiency.

In addition, the present invention by screening the dye-sensitized solar cell to which the functional reflective film is applied through the performance evaluation of the light diffusing film containing PMMA (polymethyl methacrylate) having the same particle size of 5㎛ 30㎛ In addition, it contributes to the manufacture, production and sale of dye-sensitized solar cells with excellent light efficiency in large quantities, thereby contributing to the second effect of contributing to the development of corporate profits and the development of new renewable energy-related industries.

1 is a view showing a dye-sensitized solar cell to which a functional reflective film according to an embodiment of the present invention is applied.
2 is a graph measuring the performance of the dye-sensitized solar cell is laminated with a light diffusing film containing PMMA (polymethyl methacrylate) having the same particle size of 5㎛ according to an embodiment of the present invention.
3 is a graph measuring the performance of the dye-sensitized solar cell is laminated with a light diffusing film containing PMMA (polymethyl methacrylate) having the same particle size of 10㎛ according to an embodiment of the present invention.
4 is a graph measuring the performance of the dye-sensitized solar cell is laminated with a light diffusion film containing PMMA (polymethyl methacrylate) having the same particle size of 20㎛ according to an embodiment of the present invention.
5 is a graph measuring the performance of the dye-sensitized solar cell is laminated with a light diffusing film containing PMMA (polymethyl methacrylate) having the same particle size of 30㎛ according to an embodiment of the present invention.

[Example]

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a dye-sensitized solar cell to which a functional reflective film according to an embodiment of the present invention is applied.

Referring to FIG. 1, dye-sensitized solar cells (DSSCs) 1000 to which a functional reflective film is applied are nano oxides in which dyes 400 absorbing light are adsorbed between the light diffusion film 100 and the transparent substrate 800. The layer 300 and the electrolyte layer 500 for reducing electrons are formed to have a multilayered structure.

Looking at the driving principle of the general dye-sensitized solar cell 1000, when the light is irradiated to the nano oxide layer 300, the dye 400 is adsorbed, the dye 400 absorbs photons (electron-hole pairs) to acetone an exciton is formed, and the formed acetone is converted from the ground state to the excited state. As a result, the electrons and the electron pairs are separated, and the electrons are injected into the nano oxide layer 300, and the holes move to the electrolyte layer 500. If an external circuit is installed here, electrons generate current as they pass through the nano oxide layer 300 through the conductive wire. The electrons are reduced by the electrolyte solution to generate current while continuously moving the electrons in the excited state.

The light diffusion film 100 is formed by evenly mixing titanium dioxide (TiO 2) and PMMA (polymethyl methacrylate) and a polyacrylate material having the same particle size selected from any one of 5 to 30 μm. The manufacturing process of the light diffusing film 100 is prepared by preparing a PMMA (polymethyl methacrylate) and a polyacrylate material having the same particle size as titanium dioxide (TiO2), and then stirred for 4 to 5 hours using a stirrer Let's do it. Then, bar coating is applied to form a thin film of the light diffusing film 100 to a predetermined predetermined thickness and dried by drying for 6 to 7 hours under conditions that do not cause damage.

Here, the light diffusing film is prepared by combining titanium dioxide (TiO 2), PMMA (polymethyl methacrylate) and polyacrylate material having the same particle size as shown in [Table 1] It is an experiment to find the blending ratio which shows superior light efficiency by investigating.

As a result of experiments to measure the light efficiency, a suitable compounding ratio for the light diffusing film is fixed by weight of titanium dioxide (TiO2) to 6 and polyacrylate of polymethyl methacrylate (PMMA) to 1.2 by weight. It is found that the actual light efficiency (4.72ŋ%) is measured relatively well when formulating at a ratio of 0.8.

Mixing ratio
(When TiO2 is set to 6) Current density value
(MA / cm2) Voltage value (V) Fill vector (%) Light efficiency (ŋ%) 1.PMMA: Polyacrylic (0.5: 1.5) 10.75 0.387 42.2 2.48 2.PMMA: Polyacrylic (0.8: 1.2) 11.52 0.432 65.5 4.34 3.PMMA: Polyacrylic (1: 1) 11.71 0.552 64.7 4.88
4.PMMA: Polyacrylic (1.2: 0.8) 13.68 0.486 68.6 4.72 5.PMMA: Polyacrylic (1.5: 0.5) 8.075 0.729 69.4 4.09

In addition, the most ideal blending ratio for the diffusion film is PMMA (polymethyl methacrylate) having the same particle size of 1 and polyacrylate material of 1 with titanium dioxide (TiO 2) fixed to 6 by weight. This experiment shows that the highest light efficiency (4.88ŋ%) appears when manufactured in combination.

In the manufacture of the light diffusion film, titanium dioxide (TiO 2), PMMA (polymethyl methacrylate) and polyacrylate material having the same particle size are summarized as shown in [Table 2]. The most ideal combination of light efficiency is when titanium dioxide (TiO 2), PMMA (polymethyl methacrylate) and polyacrylate material having the same particle size are mixed evenly in a 6: 1: 1 ratio.

Actually, the compounding ratio which shows good light efficiency differs in terms of material properties from the combination of titanium dioxide (TiO 2), PMMA (polymethyl methacrylate) and polyacrylate material having the same particle size in a 6: 1.2: 0.8 ratio. It is superior to other compounding ratios.

Titanium dioxide
(TiO2) PMMA
(Polymethyl methacrylate) Polyacrylate
matter Material properties according to blending rate
6
One
One
Optimal Blend <Most Ideal>
(4.5-4.9ŋ%)

6

0.5

1.5
Although there is no problem in adhesion, there is little PMMA particle, so there is little SCATTERING effect.
Light efficiency is very low (less than 3ŋ%)

6

0.8

1.2
Although there is no problem in adhesion, there is little PMMA particle, so there is little SCATTERING effect.
Low light efficiency (4.5ŋ%)

6

1.2

0.8
Although there is no problem in adhesion, there is little PMMA particle, so there is little SCATTERING effect.
Light efficiency is slightly lower than optimum
(4.72ŋ%)

6

1.5

0.5
Although there is no problem in adhesion, there are few PMMA particles, so the effect of SCATTERING is less, which is thought to decrease the efficiency (4ŋ%).

6

Less than 0.5 category
(Excluding 0)

1.5 or higher categories
(Less than 2)
Although there is no problem in adhesion, there is little PMMA particle, so there is little SCATTERING effect.
Light efficiency is very low (expected below 4ŋ%)

6
1.5 or higher categories
(Less than 2)
Less than 0.5 category
(Excluding 0)

There is a problem with adhesion
It does not form.

Performance evaluation of the dye-sensitized solar cell 1000 to which the functional reflective film is applied will be described later in more detail.

The transparent substrate 800 includes PEN (Polyethylene Naphthelate), PET (Polyethylene Terephthalate), PI (Polyimide), PP (Polypropylene: Polypropylene), and TAC (3-Phase Acetyl Cellulose: tri). It is formed of a transparent plastic material or glass material containing acetyl cellulose).

The first and second transparent electrodes 200 and 700 may be formed of indium tin oxide (ITO) or fluorine-doped tin oxide (FTO) material on the light diffusion film 100 and the transparent substrate 800 at a thickness of 1000 to 3000 μs, respectively. It is a conductive film having transparency and conductivity generated by lamination.

The first and second transparent electrodes 200 and 700 have characteristics of 85% to 95% transmittance and 40 to 50 ohm sheet resistance at a wavelength of 550 nm in the visible light region.

The nano oxide layer 300 is a layer that adsorbs the dye 400 to be described below, and is formed of one selected from titanium dioxide (TiO 2), tin dioxide (SnO 2), zinc oxide (ZnO), and niobium oxide, and the first transparent layer. It is preferable that the layer thickness laminated | stacked on the electrode 200 is 5-35 micrometers.

More specifically, when sunlight is excited to the nano oxide layer 300 to which the dye 400 is adsorbed, the photons are excited by stimulating electrons to the dye 400. In this case, when the dye 400 is electron-transferred into an excited state and forms an electron-electron pair, and the excited electron is injected into a conduction band of the nano oxide layer 300, the injected electron is first transparent electrode 200. ) And then to the second transparent electrode 700 by an external circuit.

The electrons moved to the second transparent electrode 700 generate light and energy, and the insufficient electrons are supplied to the electrolyte layer 500 according to the catalytic action (redox action) of the composition contained in the electrolyte layer 500. Lose. That is, the dye 400 transfers electrons to nano oxides selected from titanium dioxide (TiO 2), tin dioxide (SnO 2), and zinc oxide (SnO) to be oxidized, but receives the electrons transferred to the electrolyte layer 500. Reduced to.

This is because titanium dioxide (TiO 2), which is mainly used in forming the nano oxide layer 300, may adsorb a larger amount of dye 400 due to an increase in specific surface area due to a decrease in particle size.

Therefore, controlling particle size, morphology, crystallinity, and surface state will be a major factor in manufacturing the dye-sensitized solar cell 1000 to which the functional reflective film is applied.

The dye (Dye: 400) chemically adsorbed on the nano oxide layer 300 is a material absorbing light in the ultraviolet and visible region, ruthenium complex, xanthine dye, cyanine dye, basic dye, porphyrin compound, a It is one or a mixture of two or more selected from crude dyes, phthalocyanine compounds, anthraquinone dyes, and polycyclic quinone dyes. Preferably, a lot of ruthenium-based organometallic compounds are used.

In other words, the adsorption layer generated by the ruthenium-based organometallic compound will be referred to as a layer in which the dye 400 is adsorbed and stacked on the nano oxide layer 300.

The dye 400 is adsorbed using a solution containing a ruthenium complex or an organic dye. The dye 400 may include any ruthenium complex including a ruthenium complex, which may absorb visible light, as well as any dye 400 capable of improving efficiency and electron emission by improving long wavelength absorption in visible light. Can be used.

The counter electrode 600 is opposite to the nano oxide layer 300, and selected one of PT (platinum), CNT (carbon nanotube), graphene, carbon-based material, and conductive polymer material is the second transparent electrode. As stacked on 700.

The counter electrode 600 is required to have a large surface area as a microstructure, and in order to improve the catalytic effect of redox, PT (platinum) having good reflectivity is mainly used.

PT (Platinum) is the material having the highest electrochemical activity at present, and is a necessary electrochemical catalyst for improving the performance of the dye-sensitized solar cell 1000 to which the functional reflective film is applied.

The first transparent electrode 200 and the counter electrode 600 are bonded to each other using a sealing agent 900, and then penetrate the transparent substrate 800, the second transparent electrode 700, and the counter electrode 600. Forming a fine hole, and injecting an electrolyte solution (eg, one selected from an iodine redox liquid electrolyte and a polymer electrolyte) between the space between the first transparent electrode 200 and the counter electrode 600 through the hole, and then again Seal the outside with a sealing agent.

As the sealing agent 900, a thermoplastic polymer film may be used. The thermoplastic polymer film may be positioned between the first transparent electrode 200 and the counter electrode 600, and then sealed by heat compression.

Preferred materials that can be used as the sealing agent 900 may be an epoxy resin or an ultraviolet (UV) curing agent, in this case may be cured after heat treatment or UV treatment.

Electrolyte layer (500) is a carrier moving layer that allows the carrier to move by the catalytic action (redox) between the nano oxide layer 300 and the counter electrode 600, iodine redox liquid electrolyte and polymer A selected one of the electrolytes is generated as it is filled between the space of the nano oxide layer 300 and the counter electrode 600.

That is, the electrolyte layer 500

Consisting of redox species,

As a source of ions, iodide, sodium iodide, alkalammonium iodine or amidazolium iodine, etc. are used,

Ion is

Is dissolved in a solvent to produce. The medium of the electrolyte layer 500 may be a liquid such as acetonitrile or a polymer such as polyvinylidene fluoride (PVDF).

Serves to provide electrons to the dye 400 and

Receives the electrons reaching the counter electrode 600 again

Reduced to.

In the liquid type, the redox ion paper moves quickly in the medium to facilitate the regeneration of the dye 400, thereby enabling high energy conversion efficiency, but perfect bonding between the first transparent electrode 200 and the counter electrode 600. Failure to do so may result in leakage. On the other hand, if the polymer is used as a medium, there is no risk of leakage, but the movement of the redox species may be slowed and the energy change efficiency may be reduced.

Therefore, when using a polymer electrolyte, it is necessary to design the redox ion paper so that it can be rapidly delivered in the medium.

The dye-sensitized solar cell 1000 to which the functional reflective film according to the embodiment of the present invention is applied includes a light diffusion film 100 having a predetermined thickness, and the natural light or the lamp light source has a light amount of 90 to 110 mW / cm 2. When the diffusion film 100 is scanned on the unit cells of the stacked dye-sensitized solar cell 1000, the current density is 9 to 12 mA / cm 2, the voltage is 0.7 to 0.8 V, the fill vector is 57 to 61%, and the light efficiency. It is possible to objectively prove the performance of the light diffusing film 100 by obtaining the experimental results measured in the 4 to 5%.

More specifically, the experimental environment is the same size of 5 μm, assuming that titanium dioxide (TiO 2), PMMA (polymethylmethacrylate) and polyacrylate materials are mixed at an optimal blending ratio (6: 1: 1). In the case of applying the light diffusing film 100 containing PMMA (polymethyl methacrylate) of, when applying the light diffusing film 100 containing PMMA (polymethyl methacrylate) of the same size of 10㎛, 20 When the light diffusing film 100 containing PMMA (polymethyl methacrylate) having the same size of μm is applied, the light diffusing film 100 containing PMMA (polymethyl methacrylate) having the same size of 30 μm is applied. In the case of application, natural light or lamp light source of 90 to 110 mW / cm 2 light quantity is scanned on the unit cell of the dye-sensitized solar cell 1000.

As a result value to be obtained under the experimental environment, the fill vector, which is a vector affecting the current density value, the voltage value, and the light efficiency, and the light efficiency according thereto are measured, and thus the light diffusion film 100 having the optimum light efficiency and the content thereof. Particle size values of PMMA ((polymethylmethacrylate) are determined.

That is, the performance evaluation experiment for the light diffusing film 100 is as shown in Table 3, the light diffusing film 100 containing PMMA (polymethyl methacrylate) of the same size of four conditions <5㎛ ) Is applied, the light containing the PMMA (polymethyl methacrylate) of the same size of 10㎛, when the light diffusion film 100 containing the same size of PMMA (polymethyl methacrylate) of 20㎛ When the diffusion film 100 is applied and when the light diffusion film 100 containing PMMA (polymethyl methacrylate) having the same size of 30 μm is applied>, the current density value, the voltage value, the fill vector, and the light efficiency are respectively measured. can do.

Jsc
(mA / cm 2) Voc
(V) Fillfactor
(%) Efficiency
(ŋ%)
1.5 μm PMMA
Light diffusion film

9.11
0/755
60.7
4.17
2. PMMA containing 10㎛
Light diffusion film

9.32
0.751
60.3
4.22
With 3.20㎛ PMMA
Light diffusion film

10.81
0.756
57.3
4.69
4. PMMA containing 30㎛
Light diffusion film

11.58
0.758
57
5

<Assuming that titanium dioxide (TiO2), PMMA (polymethyl methacrylate) and polyacrylate material mixture ratio is 6: 1: 1

As a result, the dye-sensitized solar cell 1000 in which the light diffusing film 100 containing PMMA (polymethyl methacrylate) having the same particle size of 5 μm is laminated, and the PMMA having the same particle size of 10 μm Dye-sensitized solar cell 1000 in which light diffusing film 100 containing methyl methacrylate is laminated and light diffusing film 100 containing PMMA (polymethyl methacrylate) having the same particle size of 20 μm Even when the laminated dye-sensitized solar cell 1000 was compared through an experimental value, the dye-sensitized sun in which the light diffusion film 100 containing PMMA (polymethyl methacrylate) having the same particle size of 30 μm was laminated. It can be seen that the light efficiency (5 %%) of the battery 1000 is about 0.31 to 0.83 %% better than that of the dye-sensitized solar cell 1000 having different conditions.

In order to present more accurate experimental results, Figure 2 is a dye-sensitized laminated light diffusing film 100 containing PMMA (polymethyl methacrylate) having the same particle size of 5㎛ according to an embodiment of the present invention FIG. 3 is a graph measuring light efficiency and various parameter values of the solar cell 1000. FIG. 3 is a light diffusion containing PMMA (polymethyl methacrylate) having the same particle size of 10 μm according to an embodiment of the present invention. 4 is a graph measuring light efficiency and various parameter values of a dye-sensitized solar cell 1000 in which a film 100 is laminated. FIG. 4 is a PMMA (polymethyl) having the same particle size of 20 μm according to an embodiment of the present invention. It is a graph measuring the light efficiency and various parameter values for the dye-sensitized solar cell 1000 in which the light diffusion film 100 containing methacrylate) is laminated.

5 is a light efficiency and target for the dye-sensitized solar cell 1000 is laminated with a light diffusion film 100 containing PMMA (polymethyl methacrylate) having the same particle size of 30㎛ according to an embodiment of the present invention It will be called a graph measuring several parameter values.

2 to 5, the dye-sensitized solar cell 1000 in which the light diffusion film 100 containing PMMA (polymethyl methacrylate) having the same particle size of 30 μm is stacked has different particle sizes. It can be seen that the diffusion film 100 containing PMMA (polymethyl methacrylate) is about 0.31 to 0.83 0.8% better in light efficiency than the dye-sensitized solar cell 1000 laminated.

In conclusion, the dye-sensitized solar cell 1000 in which the light diffusion film 100 containing PMMA having the same particle size of 5 μm was laminated, the light diffusion containing PMMA having the same particle size of 10 μm Dye-sensitized solar cell 1000 in which film 100 is laminated, Dye-sensitized solar cell 1000 in which light diffusing film 100 containing PMMA having the same particle size of 20 μm is laminated and same particle size of 30 μm In the dye-sensitized solar cell (1000) in which the light diffusing film (100) containing PMMA is laminated, the light diffusing film (100) containing PMMA (polymethyl methacrylate) having the same particle size of 30 μm is Since the stacked dye-sensitized solar cell 1000 was selected through the performance evaluation experiment that the best performance was shown in terms of the light efficiency, which is the most important vector in renewable energy, photovoltaic technology. Manufactured, produced and sold by We will see that they can contribute to the base.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

1000: dye-sensitized solar cell 100: light diffusion film
200: first transparent electrode 300: nano oxide layer
400: dye 500: electrolyte layer
600: counter electrode 700: second transparent electrode
800: transparent substrate 900: sealing agent

Claims

Dye-sensitized solar cell using a functional reflective film provided with natural or lamp light source:
A first transparent electrode laminated on an indium tin oxide (ITO) or a fluorine-doped tin oxide (FTO) material on the light diffusion film;
A second transparent electrode stacked on an indium tin oxide (ITO) or a fluorine-doped tin oxide (FTO) material on the transparent substrate;
A nano oxide layer stacked on the first transparent electrode and adsorbing the dye injected through the second transparent electrode;
A counter electrode which is opposite to the nano oxide layer and is formed when one selected from PT (platinum), CNT (carbon nanotube), graphene, carbon-based material, and conductive polymer material is stacked on the second transparent electrode; And
And an electrolyte layer generated as the selected one of the iodine redox liquid electrolyte and the polymer electrolyte is filled between the nano oxide layer and the counter electrode space.
The light diffusing film includes titanium dioxide (TiO 2), PMMA (polymethyl methacrylate) having a same particle size selected from 5 μm to 30 μm, and polyacrylate, based on the weight of 6: 0.5 to 1.5: Dye-sensitized solar cell applying a functional reflective film, characterized in that the mixture is prepared by mixing 0.5 to 1.5.

The method of claim 1,
The amount of natural or lamp light is 90 to 110 mW / cm 2 in the unit cell of the dye-sensitized solar cell in which the light diffusing film containing PMMA (polymethyl methacrylate) having the same particle size of 5 μm to 30 μm is laminated. When scanned, the current density value is 9 to 12 ㎃ / ㎠, voltage value is 0.7 to 0.8V and the fill vector is measured by 57 to 61% dye-sensitized solar cell to which the functional reflective film is applied.

The method of claim 1,
The first and second transparent electrodes have transparency and conductivity generated by stacking the indium tin oxide (ITO) or fluorine-doped tin oxide (FTO) material on the light diffusing film and the transparent substrate at a thickness of 1000 to 3000 각각, respectively. A conductive film having a dye-sensitized solar cell to which a functional reflective film is applied, characterized in that it has a characteristic of 85 to 95% transmittance and a sheet resistance of 40 to 50 ohms in the visible light wavelength of 550 nm.

The method of claim 1,
The nano oxide layer is formed of one selected from titanium dioxide (TiO 2), tin dioxide (SnO 2), zinc oxide (SnO), and niobium oxide, and is stacked on the first transparent electrode at a thickness of 5 to 35 μm. Dye-sensitized solar cell applying functional reflective film.

The method of claim 4, wherein
The dye-sensitized solar cell using a functional reflective film, characterized in that the adsorbed layer generated as the dye is adsorbed on the nano oxide layer is made of a ruthenium-based organometallic compound.

The method of claim 1,
The transparent substrate is formed of a transparent plastic material or glass material containing PEN (polyethylene naphthene), PET (polyethylene terephthalic acid), PI (polyimide), PP (polypropylene) and TAC (three-phase acetyl cellulose) Dye-sensitized solar cell applying a functional reflective film characterized in that.

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