WO2010117130A2

WO2010117130A2 - Hybrid green energy window system, and method for manufacturing same

Info

Publication number: WO2010117130A2
Application number: PCT/KR2010/000496
Authority: WO
Inventors: 한윤봉; 김상훈; 박용규
Original assignee: 전북대학교산학협력단
Priority date: 2009-04-07
Filing date: 2010-01-28
Publication date: 2010-10-14
Also published as: KR20100111392A; WO2010117130A3

Abstract

The present invention relates to a hybrid green energy window system, and to a method for manufacturing same. More particularly, the present invention relates to a hybrid green energy window system, comprising: a glass window; a solar cell unit formed at one side of the glass window to produce electric power by means of the sun; a display unit formed at the other side of the glass window to display images or characters; and a storage battery unit which is electrically connected to the solar cell unit and to the display unit, and which is charged with electrical energy generated by the solar cell unit and supplies the charged electrical energy to the display unit. The present invention also relates to a method for manufacturing the system. The hybrid green energy window system converts solar energy into electrical energy without using power from an external source, and emits light itself to display a variety of images or characters, and can be used as a light source, lighting, an advertisement board, etc., and achieves an environmentally-friendly low-carbon building using green energy and less electrical energy.

Description

Hybrid green energy window system and manufacturing method thereof

The present invention relates to a hybrid green energy window system capable of realizing a low-carbon green energy fusion building and a manufacturing method thereof.

The main functions of windows are viewing, skylight, heat insulation and ventilation, and the window technology for window products is also aimed at improving these functions.

In addition to these functional, glass windows showing various purposes and functions have been proposed. For example, a glass window that inserts a unique window or pattern inside a double-glazed glass or draws oriental paintings to give occupants comfort and comfort, or a fireproof glass window and ventilation window system suitable for an extended balcony and evacuation space as safety and ventilation standards for balcony expansion are strengthened. The development of glass-related products with specific functions such as window and window blinds is actively underway.

In particular, the development of a 'smart window' that controls the indoor atmosphere by controlling the solar transmittance has also attracted a lot of attention. Smart window refers to glass windows that can control the light transmission from 5% to 90% to create an indoor atmosphere freely without curtains or blinds.

Most solar transmittance control technology in the past was a method of mounting a film having a specific transmittance on the window. However, the smart window has the advantage of providing a high level of convenience to the user while significantly increasing the transmittance of sunlight compared to the method of mounting a film by developing a material that can freely control the transmittance of sunlight and inserting it into a glass window.

Thanks to these advantages, smart windows are currently used in various fields such as transportation, architecture, and information display, and are mainly used for housing interiors such as housing windows, living rooms, verandas, porches, and shower rooms.

Recently, smart windows using transparent electronic devices have been proposed, not just smart windows that control the transmittance of sunlight. Such smart windows are suitable for ubiquitous environment in which windows of home, car, shopping, and office environment are replaced by computers or navigation, but they are still in the research stage due to various improvements such as manufacturing process difficulty and device complexity.

In addition to these smart windows, electrochromic windows have been researched and proposed. The electrochromic window is a glass window using an electrochromic technology that changes the color and contrast of the glass window according to an electrical signal using an electrochemical reaction. Such electrochromic windows can block the sun without a separate curtain and prevent heat absorption through infrared reflection, which can save energy in buildings.

On the other hand, solar power generation is expected to be environmentally friendly, economical and industrial synergies, and it can be seen that attention and investment are focused on technology fields that can be the center of green growth. Interest in green energy field is increasing the research and development of integrated solar cells.

Building Integrated Photovoltaic (BIPV) is a facility that can produce power while acting as the outer shell of a building by using the solar module as the outer covering material of the building. It is evaluated as a more advantageous technology in terms of economic feasibility because it does not require a separate site for the installation space like the existing stand-alone solar system.In addition to the original function of supplying power with solar energy, the solar panel is used as a building exterior material. It has a design element that reduces the cost of construction and increases the value of the building.

Recently, interest in BIPV is increasing due to institutional factors such as mandatory installation of new and renewable energy in large buildings, power generation gap system, and green building certification system.

Accordingly, the present inventors have developed a new concept of green energy window by combining solar cell technology and smart window technology, which are core technologies for green growth.

Many patent applications have already been proposed for display devices that are powered through solar cells and display from these powers.

Korean Patent Laid-Open Publication No. 2005-0043065 discloses a display device using a solar cell that displays display information from light emitting elements installed to be driven by electric power supplied from a solar cell through optical fiber bundles arranged on a display panel. Suggesting.

Korean Utility Registration No. 20-0389289 mentions a lighting directing system of street lamps using solar cells and GPS. Such a lighting production system can produce lighting by using satellite standard visual information of GPS, and can also be used semi-permanently by adopting a high-power LED using lighting as a power source using a solar cell which is infinite power.

Similarly, Korean Patent Laid-Open Publication No. 2004-0014049 also discloses traffic signs, street lamps, driving lanes and central separators using electrical energy using solar light, and uses solar energy to secure the visibility of pedestrians and vehicles in motion. Proposed lighting device.

In addition, Korean Patent Publication No. 2007-0072342 proposes a road display panel having a light emitting function in which a solar cell composed of a solar cell and a storage battery is switched to an optical sensor and a solar cell consisting of a light emitting and sign board is embedded.

The above patents and practical applications propose lighting and display panels as a technique of combining a solar cell and a display device. However, these systems employ a technology that simply combines separate solar cells and separate display devices. Such a simple combination requires a solar cell and a display device to be manufactured separately, which is cumbersome because of the large number of processes, and the installation of the device is complicated.

In order to solve the above problems, the present invention is a hybrid green energy window system that can be applied to various light sources, lighting, billboards, etc. as well as realizing various screens due to the self-luminescence by converting the light energy of the sun into electrical energy without any external power To provide that purpose.

It is also an object of the present invention to provide a method for manufacturing a hybrid green energy window system which can simplify a complicated process and solve installation problems.

In order to achieve the above object, the present invention

sash;

Is formed on one side of the glass window, the solar cell unit for producing power from the sun;

A display unit formed on the other side of the glass window to perform a display; And

The battery unit is electrically connected to the solar cell unit and the display unit, and charges power generated from the solar cell unit, and supplies the same to the display unit.

It provides a hybrid green energy window system having a.

In addition, the present invention

Forming a solar cell unit for producing electric power from the sun on one side of the glass window using the glass window as a substrate;

Forming a display unit for performing display on the other side of the glass window using the other side of the glass window as a substrate; And

To charge the power generated from the solar cell unit, in order to supply power to the display unit, comprising the step of electrically connecting the storage battery and the solar cell unit and the display unit

Provided is a method for manufacturing a hybrid green energy window system.

The hybrid green energy window according to the present invention is used as a light source inside / outside the building, inside / outside billboards, soft lighting by using the electric energy produced by the sun itself without a separate external power supply.

This hybrid green energy window does not require external power supply, enabling the implementation of eco-friendly low carbon green energy convergence building.

1 is a block diagram showing a hybrid green energy window system according to the present invention.

2 is a schematic diagram showing a hybrid green energy window system according to the present invention.

3 is a cross-sectional view showing a hybrid green energy window system according to the present invention.

4 is a cross-sectional view showing a solar cell unit of a hybrid green energy window system according to the present invention.

5 is a cross-sectional view illustrating a display unit of a hybrid green energy window system.

Hereinafter, the present invention will be described in more detail.

The present invention provides a hybrid green energy window system capable of emitting light by itself with electric energy generated from a solar cell without any external power.

1 is a block diagram showing a hybrid green energy window system according to the present invention, Figure 2 is a schematic diagram thereof.

1 and 2, the hybrid green energy window system 100 includes a glass window 110; Is formed on one side of the glass window 110, the solar cell unit 120 for producing power from the sun; A display unit 130 formed on the other side of the glass window 110 to perform a display; And a storage unit 140 electrically connected to the solar cell unit 120 and the display unit 130 to charge power generated from the solar cell unit and supply the same to the display unit 130.

The solar cell unit 120 collects solar heat and generates electricity by receiving a lot of illuminance from direct sunlight and maintaining the transparency of the glass window 110.

The solar cell unit 120 is not particularly limited in the present invention, any solar cell known in the art may be used. Typically, one selected from the group consisting of organic solar cells, dye-sensitized solar cells, organic-inorganic hybrid solar cells, thin film solar cells, compound semiconductor solar cells, single crystal silicon solar cells, and polycrystalline silicon solar cells is possible.

Preferably, the solar cell unit 120 may be a solar cell capable of a solution process in the manufacturing process, that is, an organic solar cell, an organic-inorganic hybrid solar cell and a dye-sensitized solar cell using an organic conjugated polymer. This solar cell is because it can ensure the transparency of the glass window 110, a large-area process is possible, and mass production is possible. In addition, since the inkjet printing process can be used, it is possible to simplify the process and reduce the production cost due to mass production.

In particular, when the dye-sensitized solar cell is used as the solar cell unit 120, it is possible to select a variety of colors to match the building design according to the type of dye, and this has the advantage of producing electricity in addition to the solar blocking effect have.

Referring to FIG. 3, in the solar cell unit 120 to which light is incident, the first electrode layer 121, the photoactive layer 123, and the second electrode layer 125 are formed on the upper portion thereof using the glass window 110 as a substrate. It has a structure laminated sequentially. The solar cell unit 120 having such a structure is based on an organic-inorganic hybrid solar cell, but the solar cell as described above, including an organic solar cell, and a dye-sensitized solar cell is possible.

The first electrode layer 121 and the second electrode layer 125 may be a transparent electrode or a translucent metal to secure transparency. Examples of the transparent electrode include metal oxides such as ITO, IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al-ZnO), AGZnO (Al-Ga ZnO), IGZnO (In-Ga ZnO), IrOx, and the like. One metal selected from the group consisting of Fe, Co, V, Ti, Al, Ag, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, and combinations thereof is possible. Preferably, the first electrode layer 121 is formed of a transparent electrode, and the second electrode layer 125 is formed of a translucent metal.

The photoactive layer 123 is composed of an organic conjugated polymer and an inorganic nano material, and includes a bi-layer structure, a bulk heterojunction structure, and a mixed layer structure. .

Specifically, the donor material of the photoactive layer 123 may be any known donor material used in a solar cell, and for example, conjugated polymers P3HT, MEH-PPV, MDMO-PPV, ZnPc, CuPc, and APFO- Green2, PFDTBT, PCPDTBT and the like can be used. In addition, the acceptor material may be an inorganic nano material, and typically CdSe, TiO ₂ , ZnO, ZnS, CdS, ZnSe, CdTe, PbS, PbSe, PbTe, and the like may be used.

These donor and acceptor materials can be in any form available for solar cell technology, including nanoparticles, quantum dots, nanostructures, nanowires, nanorods, nanosheets, nanocomb, etc. In addition to the necessary two-component materials, the band gap is adjusted by adding another material to the basic inorganic material.

The photoactive layer 123 according to the present invention is not limited to the inorganic nanomaterials presented above. In other words, the acceptor material may be formed as a conjugated polymer, and the donor material may be formed as an inorganic nano material. In this case, the conjugated polymer C60, PCBM, Perylene, PTCBI, PBI, etc. may be used as the acceptor material, and the solar cell unit 120 may be manufactured using NiO, CuO, or the like as the donor material.

If necessary, as shown in FIG. 4, the solar cell unit 120 further includes a hole transport layer 122 between the photoactive layer 123 and the second electrode layer 125. The hole transport layer 122 is not particularly limited in the present invention, any one known in the art can be used.

The solar cell unit 120 may further include a charging circuit unit (shown in FIG. 1) that amplifies the electrical energy obtained from the sun so that the storage battery can charge energy in an optimal state even with a small amount of electrical energy.

In addition, a plurality of light collecting plates for further condensing sunlight into electrical energy, and an inverter for converting the electrical energy obtained through the voltage into a voltage, if necessary.

According to the present invention, the electrical energy obtained from the solar cell unit 120 is charged in the storage unit 140, and serves to supply electricity to the display unit 130 to be described later. Therefore, the battery unit 140 is electrically connected to the solar cell unit 120 and the display unit 130.

The battery unit 140 is a device for storing electrical energy obtained from the solar cell unit 120, and is connected to the charging circuit unit to maximize storage of the amplified voltage current.

The battery unit 140 according to the present invention includes at least one storage battery, and preferably uses a rechargeable battery that can be charged and discharged.

The electric energy (that is, power) charged by the battery unit 140 is supplied to the display unit 130, and the screen is implemented by operating the light emitting device of the display unit 130 through the electric energy.

The display unit 130 may use any type of light emitting device known in the art, and is not particularly limited in the present invention. Preferably, as in the solar cell, a light emitting device capable of a solution process in a manufacturing process, that is, an organic light emitting device using an organic conjugated polymer and an organic-inorganic hybrid light emitting device based on an organic light emitting device A light emitting element such as is easy.

The organic light emitting device or the organic-inorganic hybrid light emitting device can secure transparency like the solar cell unit 120, a large-area process is possible, there is an advantage that can be mass-produced. In particular, since the inkjet printing technology can be applied to the process to be applied to the green energy window proposed in the present invention, the effect of simplifying the process and reducing the production cost due to mass production can be expected.

Referring to FIG. 3, the display 130 has a structure in which the glass window 110 is used as a substrate, and a third electrode layer 131, a light emitting layer 133, and a fourth electrode layer 135 are sequentially stacked on the glass window 110. .

The third electrode layer 131 and the fourth electrode layer 135 may be a transparent electrode or a translucent metal to secure transparency. The transparent electrode and the semi-transparent electrode follow what is passed. Preferably, the third electrode layer 131 uses a transparent electrode, and the fourth electrode layer 135 uses a translucent metal.

The light emitting layer 133 may be an organic material, an inorganic material, or a hybrid material thereof, and a material or a structure thereof is not particularly limited in the present invention, and the material of the light emitting layer 133 is the photoactive layer 123 of the solar cell unit 120. The same material can be used.

The light emitting layer 133 may be any one as long as it can implement white light emission and full color. For example, CdSe / ZnS of a core-shell structure with a red light emitting material, ZnSe / CdSe / ZnS of a core-shell structure with a green light emitting material, and a core with a blue light emitting material to realize full color. Use shell-structured CdS / ZnS.

If necessary, as shown in FIG. 5, the display unit 130 further includes a light reflection layer 132, a hole injection layer 134, a hole transport layer 136, an electron transport layer 137, and an electron injection layer 138. Equipped.

The light reflection layer 132 is formed between the glass window 110 and the third electrode layer 131, and Al or Ag may be used for top emission. In particular, the main technology is to maintain the light transmittance of 80% or more by optimizing the thickness of the light reflection layer 132 in the technical aspect.

The hole injection layer 134 and the hole transport layer 136 are sequentially formed between the third electrode layer 131 and the light emitting layer 133, wherein the material of each layer is a material known in the field of organic electroluminescent devices. use. For example, the hole injection layer 134 uses LiF / ITO, MG; Ag / ITO, and the like, and the hole transport layer 136 uses PEDOT; PSS, NPD, NPB, NPB / NPD, and the like.

The electron transport layer 137 and the electron injection layer 138 are sequentially formed between the light emitting layer 133 and the fourth electrode 135, and the material of each layer is formed of a material known in the organic electroluminescent device field. use. For example, the electron transport layer 137 may typically use Alq3, and the electron injection layer 138 may use ITO, FTO, AZO, or GZO, which are transparent electrodes.

The display unit 130 is implemented through a light emitting device, which is easy to process and implements various colors, converts more than 90% of energy into light, and loses only 10% due to heat, and is resistant to external impact and spreads. It has excellent visibility because the light is soft and the content is clearly read by reducing the fatigue of eyes.

The display unit 130 is driven through the electrical energy injected from the battery unit 140, in which the control unit for controlling the current of the electrical energy, and confirms the flashing state of the display unit 130 (see Fig. 1) It is provided.

The controller may include a separate voltage current display unit displaying current and voltage values corresponding to the solar cell unit 120, the battery unit 140, and a load, or an LED display unit displaying an operation state of the battery unit 140. It includes more.

The hybrid green energy window according to the present invention as described above produces electricity by converting solar energy into electrical energy by a photoelectric effect from a solar cell having transparency secured on the outer surface of a building's glass window during the day, and producing electricity. After the battery is stored in the battery, electricity is used whenever necessary to drive the display unit located on the inner surface of the glass window.

The hybrid green energy window provides the advantage that it can emit itself with only the electric energy generated from the solar cell without a separate external power. In addition, the light emitting element is used as a display unit to serve as a light source inside / outside the building, an inside / outside billboard, and soft lighting.

In addition, the hybrid green energy window is applied to the construction field, such as the BIPV (Building Integrated PhotoVoltaic) field, which has recently been in the spotlight, and has an effect of significantly reducing construction costs, and can be applied to various fields such as automobiles.

The present invention is a window for producing electricity by converting solar energy into electrical energy, and can be used industrially as lighting equipment and power supply devices in the construction field and the automobile field.

Claims

sash;

Is formed on one side of the glass window, the solar cell unit for producing power from the sun;

A display unit formed on the other side of the glass window to perform a display; And

The battery unit is electrically connected to the solar cell unit and the display unit, charges power generated from the solar cell unit, and supplies power to the display unit.

Hybrid green energy window system provided with.
The method of claim 1,

The solar cell unit is a hybrid green one selected from the group consisting of an organic solar cell, a dye-sensitized solar cell, an organic-inorganic hybrid solar cell, a thin film solar cell, a compound semiconductor solar cell, a single crystal silicon solar cell, and a polycrystalline silicon solar cell. Energy window system.
The method of claim 1,

The solar cell unit has a glass window as a substrate,

Transparent electrodes including ITO, IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al-ZnO), AGZnO (Al-Ga ZnO), IGZnO (In-Ga ZnO), or IrOx; Translucent metals including Fe, Co, V, Ti, Al, Ag, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, or alloys thereof; And a first electrode layer including one selected from the group consisting of a combination thereof.

1 donor selected from the group consisting of P3HT, MEH-PPV, MDMO-PPV, ZnPc, CuPc, APFO-Green2, PFDTBT, PCPDTBT and combinations thereof, and CdSe, TiO 2 , ZnO, ZnS, CdS, ZnSe, CdTe , An inorganic material comprising one acceptor material selected from the group consisting of PbS, PbSe, PbTe, and combinations thereof, or one donor selected from the group consisting of NiO, CuO, and combinations thereof, C60, PCBM, A photoactive layer comprising an inorganic material comprising one acceptor material selected from the group consisting of Perylene, PTCBI, PBI, and combinations thereof; And

Transparent electrodes including ITO, IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al-ZnO), AGZnO (Al-Ga ZnO), IGZnO (In-Ga ZnO), or IrOx; Translucent metals including Fe, Co, V, Ti, Al, Ag, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, or alloys thereof; And a second electrode layer including one selected from the group consisting of a combination thereof.
The method of claim 1,

The display unit is a hybrid green energy window system that is a front-emitting organic light emitting device or an organic-inorganic hybrid light emitting device.
The method of claim 1,

The display unit has a glass window as a substrate,

Transparent electrodes including ITO, IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al-ZnO), AGZnO (Al-Ga ZnO), IGZnO (In-Ga ZnO), or IrOx; Translucent metals including Fe, Co, V, Ti, Al, Ag, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, or alloys thereof; And a third electrode layer including one selected from the group consisting of a combination thereof.

CdSe / ZnS of core-shell structure as red luminescent material, ZnSe / CdSe / ZnS of core-shell structure as green luminescent material and CdS / ZnS of core-shell structure as blue luminescent material Light emitting layer comprising; And

Transparent electrodes including ITO, IZO (In-ZnO), GZO (Ga-ZnO), AZO (Al-ZnO), AGZnO (Al-Ga ZnO), IGZnO (In-Ga ZnO), or IrOx; Translucent metals including Fe, Co, V, Ti, Al, Ag, Ge, Y, Zn, Zr, W, Ta, Cu, Pt, or alloys thereof; And a second electrode layer including one selected from the group consisting of a combination thereof.
The method of claim 5,

The display unit may further include a light reflection layer disposed between the glass window and the third electrode layer and including Al or Ag;

A hole injection layer disposed between the third electrode layer and the light emitting layer, the hole injection layer including one selected from the group consisting of LiF / ITO, MG; Ag / ITO, and a combination thereof; and PEDOT; PSS, NPD, NPB, NPB / NPD And a hole transport layer including one selected from the group consisting of a combination thereof; And

An electron transport layer sequentially disposed between the light emitting layer and the fourth electrode layer and including Alq3; And an electron injection layer including one selected from the group consisting of ITO, FTO, AZO, GZO, and combinations thereof.
The method of claim 1,

The battery unit is a hybrid green energy window system that is a secondary battery capable of charging and discharging.
The method of claim 1,

The green energy window system is electrically connected to the storage battery, and further comprising a control unit for controlling the current generated by the solar cell hybrid green energy window system.
Forming a solar cell unit for producing electric power from the sun on one side of the glass window using the glass window as a substrate;

Forming a display unit for performing display on the other side of the glass window using the other side of the glass window as a substrate; And

In order to charge the power generated from the solar cell unit, and supplying it to the display unit, comprising the step of electrically connecting the storage battery and the solar cell unit and the display unit

Method for manufacturing a hybrid green energy window system.
The method of claim 9,

And the solar cell unit and the display unit are manufactured by an inkjet process using a glass window as a substrate.