KR20090123739A - Organic-inorganic photovoltaic devices and manufacturing method thereof - Google Patents

Abstract

PURPOSE: An organic-inorganic photovoltaic devices and manufacturing method thereof are provided to improve optic transformation efficiency. CONSTITUTION: The first electrode layer(120) is formed on the substrate(100). The photoactive layer(140) is formed on the first electrode. A plurality of inorganic nanowires(142) and optical activity organic film is included. The first charge transport layer(130) is formed on the first electrode. The second electrode layer(160) is formed in the photoactive layer. The inorganic material nanowire is unidirectional, chiasma type or stack type. The optical activity organic film is formed by using spins coat, dip-coating or the spray coating.

Description

Organic-Inorganic Photovoltaic Devices and Manufacturing Method Thereof}

The present invention relates to a solar cell, and more particularly to an organic-inorganic solar cell and a manufacturing method thereof.

Solar cells are clean, sustainable energy devices that convert light energy into electrical energy. However, silicon, a solar cell material, has the disadvantage of low light absorption efficiency and high material and device production cost.

The organic solar cell device, which is one of the efforts to overcome this problem, has the advantages of simple process, low substrate constraint, and low production cost because it can be raised in the form of a thin film. However, due to problems such as limited light absorption, short lifespan, and slow mobility of generated electrons, economic benefits and process advantages are not properly utilized. Therefore, there is a need for a solar cell having improved light absorption, charge separation, and charge transfer characteristics.

The present invention for achieving the first object of the present invention is to provide an organic-inorganic solar cell with improved performance.

The present invention for achieving the second object of the present invention is to provide a method for manufacturing an organic-inorganic solar cell with improved performance.

The solar cell according to the present invention for achieving the first object of the present invention described above includes a first electrode layer formed on a substrate. A photoactive layer is formed on the first electrode and includes a plurality of inorganic nanowires and a photoactive organic layer. The second electrode layer is positioned on the photoactive layer.

A method of manufacturing a solar cell according to the present invention for achieving the above-described second object of the present invention includes forming a first electrode layer on a substrate. Inorganic nanowires are formed on the first electrode layer. A photoactive organic layer is formed between the inorganic nanowires. A second electrode layer is formed on the photoactive organic film.

As described above, in the case of organic-inorganic solar cells having nanowires arranged at regular intervals manufactured according to the present invention, by providing excellent organic-inorganic interfacial properties for the same light absorption, it is possible to achieve fast charge in the electrode with efficient charge separation. Since the charge transport characteristics are maintained, the device characteristics are well maintained, thereby improving the light conversion efficiency.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description.

However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. Hereinafter, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1A is a cross-sectional view illustrating an organic-inorganic solar cell according to an embodiment of the present invention.

1A, an organic-inorganic solar cell according to an embodiment of the present invention may include a substrate 100, a first electrode layer 120, a first charge transfer layer 130, a photoactive layer 140, and a second charge transfer. The layer 150 and the second electrode layer 160 may be included. The photoactive layer 140 may include a plurality of inorganic nanowires 142 and a photoactive organic layer 144.

The inorganic nanowires 142 may be an n-type semiconductor layer, and the photoactive organic layer 144 may be a p-type semiconductor layer. The inorganic nanowires 142 may be uniformly spaced in one direction or in a cross direction.

The first charge transfer layer 130 may be an electron transfer layer, and in this case, the second charge transfer layer 150 may be a hole transfer layer.

When light is incident on the photoactive layer 140 from the outside, an electron-hole pair (exciton) in which electrons and holes are weakly coupled is generated. The excitons are electrically neutral and can move freely without being affected by the electric field. The excitons move to the interface between the inorganic nanowires 142 and the photoactive organic layer 144, and electron-holes are separated by a strong voltage at the organic-inorganic interface. The separated electrons and holes are transferred to both electrodes by an internal electric field, which converts solar energy into electrical energy.

1B is a cross-sectional view illustrating an organic-inorganic solar cell according to another embodiment of the present invention. The organic-inorganic solar cell according to the present embodiment may be similar to the embodiment described with reference to FIG. 1A except as described below.

Referring to FIG. 1B, the organic-inorganic solar cell according to the present invention may be formed by stacking inorganic nanowires 142 unidirectionally or cross-oriented in multiple layers.

That is, the organic-inorganic solar cell according to the present invention is the substrate 100, the first electrode layer 120, the first charge transfer layer 130, the inorganic nanowires 142 stacked in multiple layers and the inorganic nanowires ( The photoactive layer 140 including the photoactive organic layers 144 formed between the 142, the second charge transfer layer 150, and the second electrode layer 160 may be included.

Figure 1c is a cross-sectional view showing an organic-inorganic solar cell according to another embodiment of the present invention. The organic-inorganic solar cell according to the present embodiment may be similar to the embodiment described with reference to FIG. 1A except as described below.

Referring to FIG. 1C, the organic-inorganic solar cell according to the present invention may be formed by omitting the first charge transfer layer 130 and the second charge transfer layer 150.

That is, the organic-inorganic solar cell according to the present invention may include the substrate 100, the first electrode layer 120, the photoactive layer 140, and the second electrode layer 160.

2a to 2c show a method of manufacturing an organic-inorganic solar cell according to an embodiment of the present invention.

2A, a substrate 100 is provided. The substrate 100 may be a transparent substrate, and the substrate 100 may be a flexible substrate or a substrate having a curved surface. The first electrode 120 is formed on the substrate 100. The first electrode 120 may be a transparent conductive oxide film. The transparent conductive oxide film may be an ITO (In ₂ O ₃ : Sn), FTO (SnO ₂ : F), FZO (ZnO: F), IZO (In ₂ O ₃ : Zn), or a ZnO film.

A first charge transfer layer 130 is formed on the first electrode 120. When the first charge transport layer 130 is an electron transport layer, the electron transport layer has a conduction band (CB) or work function (φ) to selectively transfer only electrons from the separated electrons and holes. May be an inorganic layer formed lower from Evac (vacuum energy level) than the inorganic nanowire described below.

Referring to FIG. 2B, a photoactive layer 140 is formed on the first charge transfer layer 130.

The photoactive layer 140 may first form the inorganic nanowires 142 and then form the photoactive organic layer 144.

In order to form the inorganic nanowires 142, a sol-gel solution of a starting material is prepared, and the sol-gel solution and a carrier solution are mixed to form nanowires. The nanowires 142 may be formed using an electrospinning device and a rotation collecting device. The nanowires formed as described above may have a constant distance in one direction or in a cross direction. Here, since the nanowires are in a state in which organic substances are mixed by a carrier solution, a separate heat treatment may be performed. Heat treatment may be carried out at a temperature of 200 ℃ to 600 ℃.

The inorganic nanowires 142 may use an inorganic material having a band gap of less than 3.4 eV. The inorganic nanowires 142 may include Ti oxide, Zn oxide, Sn oxide, Nb oxide, Ce oxide, Ti sulfide, Zn sulfide, Sn sulfide, Nb sulfide, Cd sulfide Ce sulfide, Ti nitride, Zn nitride, Sn nitride, It may be selected from the group consisting of Nb nitride, Ce nitride, ZnSe, ZnTe, CdSe and CdTe, it can be used as an n-type semiconductor by adding N, P, As or Sb as a dopant.

The carrier solution is polyimides, polyamic acid, polyetherimide, nylon 6 (Nylon 6), poly (p-phenylene terephthalamide) [poly (p-phenylene terephtahlamide)] , Polybenzimidazole, polyacrylonitrile (PAN), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyvinyl acetate (PVAc), Polyvinyl alcohol (PVA), polypropylene (PP), polystyrene (PS), polyvinylpyrrolidone (PVP) or polycarbonate (PC) can be dissolved in a solvent. .

The solvent is water, methanol, ethanol, acetone, phenol, formic acid, sulfuric acid, dimethylformamide (Dimethylformanide, DMF), dimethylacetamide, tetrahydrofuran (THF), trifluoroacetic acid trifluoroacetic acid, toluene or methylene chloride.

The photoactive organic layer 144 may be a layer filling the space between the inorganic nanowires 142. The photoactive organic layer 144 may be formed by spin coating, dip coating, doctor blading, dropping, brushing, or spray coating.

The photoactive organic layer 144 has absorption in the visible light region, and the electron conduction band LUMO and the valence electron conduction band HOMO respectively form the electron conduction band CB and the valence band VB of the inorganic nanowire. Each layer may be a layer including an organic material which is located at a higher level as a reference to facilitate separation of electrons and holes.

The photoactive organic layer 144 may include a poly-3-hexylthiophene (P3HT) -based material layer, poly (2-methoxy, 5- (2, -ethyl-hexyloxy) -1, 4-phenylenevinylene) [Poly (2-methoxy, 5- (2-ethyl-hexyloxy) -1,4-phenylenvinylene, MEH-PPV] -based material layer, poly (2-methyl, 5- (3 ', 7'-dimethyloctyloxy))-1 material layer or 4-phenylene vinylene [poly (2-methyl, 5- (3 ', 7'-dimethyloctyloxy))-1, 4-phenylene vynylene, MDMO-PPV ] -Based material layer may be any one selected.

Referring to FIG. 2C, a second charge transfer layer 150 is formed on the photoactive layer 140. When the second charge transfer layer 150 is a hole transfer layer, the second charge transfer layer 150 is poly (3,4-ethylenedioxythiophene) -poly (styrene sulfonate) [poly (3 , 4-ethylenedioxythiophene) -poly (stylene sulfonate, PEDOT: PSS) layer.

The second electrode layer 160 is formed on the second charge transfer layer 150. The second electrode layer 160 may be a metal having a low work function, and the second electrode layer 160 may be an Au, Al, Ca, Mg, Ba, Mo, Al-Mg, or LiF-Al layer.

Figure 3 is a schematic diagram showing an electrospinning apparatus and a rotary collecting device according to an embodiment of the present invention.

Referring to FIG. 3, the electrospinning apparatus 200 may include a height adjusting stand 210, a syringe pump 220, and a syringe 230.

The syringe 230 is positioned above the syringe pump, and the discharge amount of the solution injected into the syringe may be controlled by the syringe pump 220.

The syringe 230 may include an injection needle 232, and may use a metal material through which electricity can pass. The needle 232 may be connected to a high voltage applying device to apply a voltage.

The rotary collecting device 300 may include a frequency controller 310, a motor 320, a ground electrode 330, a holder 340, and a collecting electrode structure 350.

The frequency controller 310 transmits the variable frequency, and the motor 320 provides the rotation speed. The ground electrode 330 is connected to the collection electrode structure 350 to apply a voltage between the collection electrode structure 350 and the scanning needle. The holder 340 grasps and supports and rotates the collection electrode. The holder 340 may be detachable from the collection electrode structures 350, and thus may be changed by manufacturing the collection electrode structures 350 differently.

The collecting electrode structure 350 is where nanowires eluted from the electrospinning are formed, and where the rotation is directly generated.

A substance for forming nanowires with uniform spacing is injected into the syringe 230 of the electrospinning apparatus. Then, the positive electrode is connected to the needle 232 of the electrospinning apparatus, and the negative electrode is connected to the ground electrode 330 of the rotary collecting device to apply a high voltage.

Using the above-described method, nanowires having a uniform spacing may be formed on the substrate on the rotation collecting structure from the syringe.

Production Example  One: One-way  Inorganic nano Wire  Manufacture of organic-inorganic solar cells provided

An ITO layer was formed on the substrate 110 as the first electrode layer 120. An inorganic nanowire 142 was formed on the substrate 110 on which the first electrode layer 120 was formed by using an electrospinning device and a rotation collecting device.

A sol-gel solution was prepared to form the inorganic nanowires 142. The sol-gel solution was prepared by mixing 3 g of acetic acid, 3 mL of acetic acid, and 3 mL of ethanol in 1.5 g of titanium tetraisopropoxide, followed by stirring for 30 minutes.

Subsequently, the carrier solution was added to the sol-gel solution and mixed. The carrier solution was prepared by mixing 0.45 g of polyvinylpyrrolidone and 7 mL of ethanol, and the mixing was performed using a vibration mixer (Vortax meter). In addition, the sterling was performed for 2 hours to remove bubbles and fine mixing generated through the mixing.

The mixture of the sol-gel solution and the carrier solution thus formed was injected into the syringe of the electrospinning apparatus and the high voltage apparatus was connected. The high voltage device was connected to the needle of the syringe, the positive electrode was connected to the needle, and the negative electrode was connected to the electrode of the rotary collecting device. The distance between the electrospinning apparatus and the rotary collecting device was 8 cm.

At this time, the elution amount of the solution per hour of the syringe was adjusted to 0.8mL, the rotational speed of the rotary collection device was 2000 times per minute. A high voltage of 14 kV was applied between the anode and the cathode.

Through this method, nanowires in one direction having a uniform spacing are formed on the substrate 110. At this time, the nanowires were about 45 nm in diameter.

Since the nanowires prepared as described above are in a state in which inorganic and organic materials are mixed, heat treatment was performed to remove unnecessary organic materials and to obtain a desired phase.

The heat treatment was carried out in an electric furnace and for 3 hours at a temperature of 500 ℃. The desired phase is to obtain an anatase phase in the case of titanium.

The photoactive organic layer 144 was formed between the spaces of the inorganic nanowires 142 formed as described above. The photoactive organic layer 144 is 15 mg of poly (2-methoxy, 5- (2-ethyl-hexyloxy) -1,4-phenylenevinylene) [poly (2-methoxy, 5- (2- ethyl-hexyloxy) -1,4-phenylenevinylene, MEH-PPV] and 3 mL of 1, 2- (dichlorobenzene) solution were formed by mixing and spin coating the mixed solution, which was prepared by using a vibration mixer. The mixed solution was applied onto the inorganic nanowires 142. Thereafter, the mixed solution was dried at a temperature of 70 ° C for 10 minutes.

The second charge layer 150 is formed on the photoactive organic layer 144. The charge transfer layer 150 was formed by spin coating PEDOT: PSS, and dried for 10 minutes at a temperature of 120 ° C. after spin coating.

Gold was applied as the second electrode layer 160 on the charge transfer layer 150.

Production Example  2: crossed inorganic nano Wire  Manufacture of organic-inorganic solar cells provided

An inorganic nanowire was manufactured using the same method as in Preparation Example 1 except for the following.

The inorganic nanowires were formed by crossing the nanowires having one direction to cross the inorganic nanowires.

Production Example  3: multilayer inorganic nano Wire  Manufacture of organic-inorganic solar cells provided

An inorganic nanowire was manufactured using the same method as in Preparation Example 1 except for the following.

The inorganic nanowire layer was formed by repeatedly depositing crossed nanowires to form a stacked inorganic nanowire.

Comparative example  1: Fabrication of Organic-Inorganic Solar Cells with Inorganic Thin Films

An organic-inorganic solar cell was manufactured using the same method as in Preparation Example 1 except for the following.

In Comparative Example 1, an inorganic nano thin film was formed by sol-gel coating instead of the inorganic nano wire described in Preparation Example 1.

Comparative example  2: disordered weapon Nanowires  Manufacture of organic-inorganic solar cells provided

An inorganic nanowire was manufactured using the same method as in Preparation Example 1 except for the following.

In Comparative Example 2, the inorganic nanowires were formed using only electrospinning, and did not form in one direction, thereby forming inorganic nanowires in a disordered state.

end. X-ray diffraction  analysis

X-ray diffraction analysis of the inorganic nanowires and the inorganic nano thin films prepared in Preparation Example 1 and Comparative Example 1 were performed.

Figure 4 is a graph showing the results of the phase analysis by X-ray diffraction of the inorganic nanowires and inorganic nano thin films prepared by the respective methods.

Referring to FIG. 4, the nanowires having one direction using the electrospinning apparatus and the rotation trapping apparatus according to Preparation Example 1 showed amorphous characteristics before heat treatment. This is because the mixing process with the carrier solution at the time of preparation was carried out to include the organic material.

However, the nanowires according to Preparation Example 1 may have an anatase phase showing excellent characteristics in the solar cell only by the heat treatment process.

In addition, the inorganic nano thin film according to Comparative Example 1 was also able to exhibit the crystalline characteristics through the heat treatment.

I. X-ray absorption spectrum test

Absorption spectral results of the nanowires formed using the sol-gel solution state, the electrospinning device and the rotary collecting device in Preparation Example 1, and the inorganic nanowires after the heat treatment were obtained with commercially prepared titanium foils, anatase and rutile phases. Compared with the properties of titanium oxide.

5 is an X-ray absorption spectrum showing a phase change of a material formed in each step of Preparation Example 1. FIG.

Referring to FIG. 5, it can be seen that in the sol-gel solution state, one strong peak exhibiting tetragonal structural characteristics is exhibited in the preedge portion, such as the characteristic peak of the metal foil, and the crystallinity of the desired phase is not formed.

In addition, in the case of the nanowires before heat treatment, one preedge peak similar to the starting material has a large tetragonal structure, indicating that no anatase phase has yet been formed.

However, the inorganic nanowires after heat treatment show the agreement between the three weak characteristic peaks of the preedge portion coincident with the characteristic peaks on the anatase phase and the characteristic peaks after the preedge, thereby confirming the properties of the anatase titanium oxide having good crystallinity.

All. SEM  analysis

Images of the inorganic nanowires in one direction or cross direction arranged at regular intervals prepared in Preparation Examples 1 and 3 are shown.

6 illustrates a unidirectional inorganic nanowire according to an embodiment of the present invention.

Referring to FIG. 6, it can be seen that in the unidirectional inorganic nanowire, more than 95% of the nanowires having an average diameter of 45 nm are aligned in one direction within a 5 ° range.

Figure 7 shows a cross-type inorganic nanowires according to an embodiment of the present invention.

Referring to FIG. 7, it can be seen that the inorganic nanowires formed by using the electrospinning device and the rotary collecting device are formed to have a uniform width and are aligned with each other.

la. Impedance  analysis

Electrical resistance and mobility of ions of the inorganic nanowires prepared in Preparation Examples 1 and 2 and Comparative Example 2 were measured. The electrical resistance and the mobility of the ions were performed using electrochemical impedance (solartron analytical 1400, 1400E, Inc. of the METEK) equipment.

8 is a graph showing impedance measurement results of inorganic nanowire electrodes, respectively.

Referring to FIG. 8, in the case of the inorganic nanowire formed by using the electrospinning apparatus and the rotary collecting apparatus according to an embodiment of the present invention, the electrical resistance of the electrode is similar to 3000 ohm · cm, whereas only the electrospinning apparatus is used. In the case of the formed inorganic nanowires, an electrical resistance increase of more than 30% was confirmed at 4000 ohmcm. Therefore, when the inorganic nanowire structure having a constant interval is manufactured using the electrospinning apparatus and the rotation trapping apparatus, the electrical resistance can be reduced and the electron transfer characteristics can be improved.

hemp. UV - vis  Absorption Spectrum Analysis

The photoabsorption spectrums of the inorganic nanowires and the inorganic thin films prepared in Preparation Examples 1 to 3 and Comparative Examples 1 to 2 were compared with those of commercially available organic photoactive layers. The light absorption spectrum was UV-vis spectrometer (Agilent 8435) was used.

9A to 9B are graphs showing light absorption spectra of photoactive layers, respectively. Specifically, FIG. 9A is a graph showing the light absorption spectrum of the photoactive layer including inorganic nanowires and the organic film, and FIG. 9B is a graph showing the light absorption spectrum of only the photoactive organic material therein.

Referring to FIG. 9A, in the case of a commercially available organic photoactive layer, the amount of light absorption according to the wavelength is small and only absorption occurs at some wavelengths (400 nm to 600 nm).

However, in the case of the photoactive layer including the inorganic thin films and the inorganic nanowires according to Comparative Examples 1 to 2, it can be seen that the light absorption of the short wavelength side is increased compared to the organic photoactive layer.

In the photoactive layer in which the photoactive organic layer was formed on the inorganic nanowires prepared in Preparation Examples 1 to 3 according to the present invention, the amount of light absorption was significantly improved according to the wavelength, and absorption occurred at a wide wavelength.

9B, the photoactive organic layers in each photoactive layer showed similar absorption.

bar. PL  Spectral analysis

PL spectral analysis was performed by comparing the photoactive layers coated with the photoactive organic layer on the inorganic nanowires and the inorganic thin films prepared in Preparation Examples 1 to 2 and the commercially available organic photoactive layer. The PL spectral analysis excited light at 590 nm and then measured photoluminescence.

10 is a graph showing the PL spectral results of the photoactive layers, respectively.

Referring to FIG. 10, in the case of a photoactive layer coated with an organic photoactive layer, an inorganic thin film, and a disordered inorganic nanowire, respectively, photoluminescence is greatly generated, photoluminescence is greatly generated. In the photoactive layer in which the photoactive organic layer is formed on the inorganic nanowire, the relative intensity of the photoluminescence decreases as the orientation and lamination degree of the inorganic nanowire increases, thereby reducing photoluminescence by about 28% with respect to the organic photoactive layer. .

Therefore, it can be seen that in the solar cell having the inorganic nanowire according to the present invention, the organic-inorganic interface property is excellent and the charge separation efficiency of the excitons formed by absorption of light is increased.

four. Mineral induction  Voltage and current density analysis

The light conversion characteristics of the organic-inorganic solar cells prepared in Preparation Examples 1 to 3 and Comparative Examples 1 to 2 were investigated.

The electrodes of the organic-inorganic solar cell were connected to a current-voltage measuring device (KEITHLY sourcemeter 4300) and irradiated with light. The voltage at this time was gradually reduced from 1V to 0V and the current value was measured.

11 is a graph showing the light conversion characteristics of organic-inorganic solar cells, respectively.

Referring to FIG. 11, in the case of the solar cell including the inorganic thin film manufactured in Comparative Example 1, the current density value was markedly low, and in the case of the solar cell including the disordered nanowires prepared in Comparative Example 2, the inorganic Although the current density increased compared to the solar cell having a thin film, the current density was still low.

On the other hand, in the case of a solar cell having an inorganic nanowire having a predetermined interval manufactured in Preparation Examples 1 to 3, compared with Comparative Example 1, the maximum light conversion efficiency is increased by more than 70% from 0.24% to 0.41% You can see that.

Therefore, when the inorganic nanowires having a predetermined interval manufactured by using the electrospinning device and the rotation trapping device according to the present invention contribute to the efficiency of the solar cell by improving the charge separation and charge transfer characteristics by light absorption. Able to know.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

1A is a cross-sectional view illustrating an organic-inorganic solar cell according to an embodiment of the present invention.

1B is a cross-sectional view illustrating an organic-inorganic solar cell according to another embodiment of the present invention.

Figure 1c is a cross-sectional view showing an organic-inorganic solar cell according to another embodiment of the present invention.

2a to 2c show a method of manufacturing an organic-inorganic solar cell according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing an electrospinning apparatus and a rotary collecting device according to an embodiment of the present invention.

Figure 4 is a graph showing the results of the phase analysis by X-ray diffraction of the inorganic nanowires and inorganic nano thin films prepared by the respective methods.

5 is an X-ray absorption spectrum showing a phase change of a material formed in each step of Preparation Example 1. FIG.

6 illustrates a unidirectional inorganic nanowire according to an embodiment of the present invention.

Figure 7 shows a cross-type inorganic nanowires according to an embodiment of the present invention.

8 is a graph showing impedance measurement results of inorganic nanowire electrodes, respectively.

9A to 9B are graphs showing light absorption spectra of photoactive layers, respectively.

10 is a graph showing the PL spectral results of the photoactive layers, respectively.

11 is a graph showing the light conversion characteristics of organic-inorganic solar cells, respectively.

<Description of the symbols for the main parts of the drawings>

100 substrate 120 first electrode layer

130: first charge transfer layer 140: photoactive layer

142: inorganic nanowire 144: photoactive organic film

150: second charge transfer layer 160: second electrode layer

210: height adjustment stand 220: syringe pump

230: syringe 310: frequency regulator

320: motor 330: ground electrode

340: holder 350: collecting electrode structure

Claims (9)

A first electrode layer formed on the substrate; A photoactive layer formed on the first electrode and having a plurality of inorganic nanowires and a photoactive organic layer; And An organic-inorganic solar cell comprising a second electrode layer formed on the photoactive layer. The method of claim 1, wherein the inorganic nanowires, Ti oxide, Zn oxide, Sn oxide, Nb oxide, Ce oxide, Ti sulfide, Zn sulfide, Sn sulfide, Nb sulfide, Cd sulfide Ce sulfide, Ti nitride, Zn nitride, Sn nitride, Nb nitride, Ce nitride, ZnSe, ZnTe , CdSe and CdTe organic-inorganic solar cell, characterized in that one of the nanowires selected from the group consisting of. The method of claim 1 or 2, wherein the inorganic nanowires, Organic-inorganic solar cell, characterized in that formed in one direction, cross-type or stacked. The method of claim 1, wherein the photoactive organic film, Poly-3-hexylthiophene (P3HT) -based material layer, poly (2-methoxy, 5- (2, -ethyl-hexyloxy) -1,4-phenylenevinylene) [ Poly (2-methoxy, 5- (2-ethyl-hexyloxy) -1,4-phenylenvinylene, MEH-PPV] -based material layer, poly (2-methyl, 5- (3 ', 7'-dimethyloctyloxy)) -1-based material layer or 4-phenylene vinylene [poly (2-methyl, 5- (3 ', 7'-dimethyloctyloxy))-1, 4-phenylene vynylene, MDMO-PPV] based material layer Organic and inorganic solar cells. The method according to claim 1 or 4, wherein the photoactive organic film, An organic-inorganic solar cell, which is formed using spin coating, dip coating, doctor blading, dropping, brushing or spray coating. Forming a first electrode layer on the substrate; Forming inorganic nanowires on the first electrode layer; Forming a photoactive organic layer between the inorganic nanowires; And Forming a second electrode layer on the photoactive organic film manufacturing method of an organic-inorganic solar cell. The method of claim 6, wherein the inorganic nanowires, Method for producing an organic-inorganic solar cell, characterized in that formed using an electrospinning device and a rotary collection device. The method of claim 7, wherein the inorganic nanowires, Method for producing an organic-inorganic solar cell, characterized in that the heat treatment is performed after the formation using an electrospinning device and a rotary collection device. The method of claim 6, wherein the photoactive organic film, Method of manufacturing an organic-inorganic solar cell, characterized in that formed using spin coating, dip coating, doctor blading, dropping, brushing or spray coating.

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