WO2023075007A1 - Three-dimensional solar cell module, for concentrating indirect light - Google Patents

Three-dimensional solar cell module, for concentrating indirect light Download PDF

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WO2023075007A1
WO2023075007A1 PCT/KR2021/018189 KR2021018189W WO2023075007A1 WO 2023075007 A1 WO2023075007 A1 WO 2023075007A1 KR 2021018189 W KR2021018189 W KR 2021018189W WO 2023075007 A1 WO2023075007 A1 WO 2023075007A1
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solar cell
cell module
indirect light
dimensional
light
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PCT/KR2021/018189
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French (fr)
Korean (ko)
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윤민주
차승일
심연향
이동윤
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한국전기연구원
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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
    • H01L31/04—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
    • H01L31/047—PV cell arrays including PV cells having multiple vertical junctions or multiple V-groove junctions formed in a semiconductor substrate
    • 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
    • H01L31/048—Encapsulation of modules
    • 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
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of 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
    • H01L31/04—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
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
    • 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
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to a three-dimensional solar cell module for condensing indirect light, and more particularly, to a three-dimensional solar cell module capable of producing energy with a low amount of light by forming a multi-faceted lattice structure by connecting a plurality of unit solar cells. .
  • An organic solar cell is a solar cell made using a carbon-based conductive light-absorbing organic material. It can be manufactured with a large-area printing technology based on a solution process, so that a light and mechanically flexible device can be manufactured.
  • the organic photoactive material used is silicon. It is a solar cell with a higher extinction coefficient and easy band gap control.
  • the perovskite solar cell is constructed based on a p-n junction solar cell using a nanoscale inorganic semiconductor light absorber with a multi-layer structure, which is a similar principle to the compound thin-film solar cell.
  • a film of a metal halide-containing precursor is dissolved in halogen ions or halogen molecules and organic halides.
  • a solar cell including a stable manufacturing method for reacting with a solution.
  • the present invention was invented to solve the above problems, and it is possible to produce energy with a low amount of light by forming a multi-faceted lattice structure using a unit solar cell, improve durability and modularize by utilizing a silicon unit solar cell It is a technical challenge to provide a three-dimensional solar cell module for condensing indirect light so that stabilization can be secured during manufacturing.
  • the present invention provides a three-dimensional solar cell module for condensing indirect light, characterized in that a plurality of regular triangular silicon unit solar cells are connected to form a multi-faceted lattice structure.
  • the multifaceted lattice structure is characterized by a three-dimensional solar cell module for condensing indirect light, which is a tetrahedral structure having an equilateral triangular base.
  • the multifaceted lattice structure is characterized by a three-dimensional solar cell module for condensing indirect light, which is a pyramid structure having a square bottom.
  • the three-dimensional solar cell module for condensing indirect light is characterized in that the three-dimensional solar cell module for condensing indirect light is formed as a plurality of aggregates having bases adjacent to each other using the multifaceted lattice structure as a unit.
  • the three-dimensional solar cell module for condensing indirect light by means of solving the above problems, there is an effect of producing energy with a low amount of light by forming a multi-faceted lattice structure using unit solar cells.
  • 1 is a view showing a general indoor lighting environment.
  • FIG. 2 is a view showing a silicon unit solar cell of the present invention.
  • Figure 3 (a) is a view showing a tetrahedral structure three-dimensional solar cell module of the present invention.
  • 3(b) is a diagram showing a pyramid structure three-dimensional solar cell module of the present invention.
  • Figure 4 is a graph showing the relative energy production according to the lighting environment of the unit solar cell and the three-dimensional solar cell module of the present invention.
  • Fig. 5 is a diagram showing a plurality of aggregates using Fig. 3(a) as a unit;
  • Figure 6 is a graph showing the energy production when the area of Figure 2 and Figure 5 are manufactured.
  • indoors are mainly composed of indirect light by lighting such as fluorescent lights, incandescent lights, and LEDs. lack of light Therefore, a three-dimensional solar cell module with a suitable shape capable of producing electric energy with low light, indoor light or indirect light is proposed.
  • a plurality of regular triangular silicon unit solar cells 100 are connected to form a multi-faceted lattice structure.
  • the unit solar cell 100 is formed in an equilateral triangle, and an electrode is attached to the rear end so that it can be electrically connected, and when the three-dimensional solar cell module 200 is formed, electrical can be linked to
  • the silicon unit solar cell 100 is classified into a single crystal, polycrystalline or amorphous form, and although it is the same material, efficiency and characteristics are different depending on the crystal form.
  • the monocrystalline silicon solar cell is the first solar cell, and the arrangement of silicon atoms is regular and constant, so there is no interference with the flow of electrons, so the energy conversion efficiency is high, and the power generation is relatively good even on cloudy days, and the durability is good.
  • the polycrystalline silicon solar cell has advantages of a simple production process and a relatively low price compared to the monocrystalline silicon solar cell.
  • a typical solar cell for indoor light is a solar cell based on organic materials, it is vulnerable to heat and moisture and thus has poor durability, and when a solar cell is modularized, electrical loss occurs and it is not stable.
  • the present invention forms the three-dimensional solar cell module 200 of the multi-faceted lattice structure with the silicon unit solar cell 100, it can be stabilized when the durability is improved and modularized, and the surface area is increased to improve the light collection efficiency let it
  • the three-dimensional solar cell module 200 has higher space utilization than the unit solar cell 100, energy production efficiency compared to the unit area can be increased.
  • the multifaceted lattice structure of the three-dimensional solar cell module 200 as shown in FIG. 3 (a) may have a tetrahedral structure with an equilateral triangular base or a pyramid structure with a square base as shown in FIG. 3 (b).
  • the horizontal axis means the unit solar cell 100, the pyramid structure 240, and the tetrahedral structure 220 from the left, and the vertical axis means the energy production.
  • the bar graph changes from light color to dark color, it means that the effect of indirect light is greater than that of direct light.
  • the tetrahedral structure 220 has the highest energy production efficiency in an indirect light environment, and the flat unit solar cell 100 has the lowest energy production efficiency in an indirect light environment.
  • unit solar cells 100 may be electrically connected in series or parallel, or may be connected in series-parallel.
  • series connection in the case of high voltage and low current, series connection is preferable, and in the case of low voltage and high current, parallel connection is preferable.
  • the three-dimensional solar cell module 200 may be formed of a plurality of aggregates 300 in which bases are adjacent to each other using a multifaceted lattice structure as a unit.
  • the surface area other than the bottom of the assembly 300 shown in FIG. 5 is 24 cm2, compared to the unit solar cell 100 formed with the same area of 24 cm2, the flat unit solar cell cell. It was confirmed through experiments that the energy production of the three-dimensional aggregate 300 was higher than that of (100).
  • the plurality of aggregates 300 having a multi-faceted lattice structure as a unit have higher energy production than the unit solar cell 100 made of a flat plate.
  • the three-dimensional solar cell module 200 configured as described above, durability can be improved by utilizing silicon unit solar cells, stabilization can be achieved during modularization, and energy can be produced with low light, indoor light and indirect light. It can be formed into an optimized shape.
  • the three-dimensional solar cell module 200 and the assembly 300 can be placed on a desk or shelf indoors and connected to a low-power indoor electronic device to be used.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

The present invention relates to a three-dimensional solar cell module for concentrating indirect light, and more specifically relates to a three-dimensional solar cell module in which a plurality of unit solar cells are connected into a polygonal grid structure, enabling energy to be generated using a low level of light. The present invention provides a three-dimensional solar cell module for concentrating indirect light, characterized in that a plurality of equilateral triangle-shaped, silicon unit solar cells are connected into a polygonal grid structure.

Description

간접광을 집광시키기 위한 입체태양전지모듈Three-dimensional solar cell module for condensing indirect light
본 발명은 간접광을 집광시키기 위한 입체태양전지모듈에 관한 것으로, 더욱 상세하게는 단위태양전지셀은 복수개 연결하여 다면격자구조로 형성시킴으로서 저광량으로 에너지를 생산할 수 있는 입체태양전지모듈에 관한 것이다.The present invention relates to a three-dimensional solar cell module for condensing indirect light, and more particularly, to a three-dimensional solar cell module capable of producing energy with a low amount of light by forming a multi-faceted lattice structure by connecting a plurality of unit solar cells. .
최근 저전력 구동 실내 전자 장치의 사용이 증가함에 따라 실내에서 사용할 수 있는 태양전지에 대한 관심이 늘어나고 있으며, 이에 따른 실내광용 태양전지는 유기 태양전지 또는 페로보스카이트 태양전지가 주로 제시되고 있다.Recently, as the use of low-power driving indoor electronic devices increases, interest in solar cells that can be used indoors is increasing, and accordingly, organic solar cells or perovskite solar cells are mainly proposed as solar cells for indoor lighting.
유기 태양전지는 탄소 기반의 전도성 광흡수 유기재료를 사용하여 만든 태양전지로, 용액공정 기반의 대면적 인쇄기술로 제작할 수 있어 가볍고 기계적으로 유연한 소자를 제작할 수 있고, 사용되는 유기 광할성 재료는 실리콘보다 높은 흡광계수와 밴드 갭 조절이 용이한 태양전지이다.An organic solar cell is a solar cell made using a carbon-based conductive light-absorbing organic material. It can be manufactured with a large-area printing technology based on a solution process, so that a light and mechanically flexible device can be manufactured. The organic photoactive material used is silicon. It is a solar cell with a higher extinction coefficient and easy band gap control.
그리고 페로보스카이트 태양전지는 화합물박막태양전지와 유사한 원리인 다층구조의 나노스케일 무기반도체 광흡수체를 이용한 p-n접합형 태양전지를 기반으로 구성된다.And the perovskite solar cell is constructed based on a p-n junction solar cell using a nanoscale inorganic semiconductor light absorber with a multi-layer structure, which is a similar principle to the compound thin-film solar cell.
이에 따라서, '고효율 페로브스카이트 화합물계 막의 제조방법 및 이를 포함하는 태양전지(등록번호 : 10-1810155)'에서는 금속할로겐화물-함유 전구물질의 막을 할로겐 이온 또는 할로겐 분자 및 유기할로겐화물이 용해된 용액과 반응시키는 안정적인 제조방법을 포함하는 태양전지를 개시하고 있다.Accordingly, in the 'manufacturing method of high-efficiency perovskite compound-based film and solar cell including the same (registration number: 10-1810155)', a film of a metal halide-containing precursor is dissolved in halogen ions or halogen molecules and organic halides. Disclosed is a solar cell including a stable manufacturing method for reacting with a solution.
그러나 유기물을 베이스로 하는 태양전지는 열과 수분에 취약하여 내구성이 떨어지고, 태양전지셀을 모듈화로 형성시켜 작동시키게 되면 전기적 손실이 발생하는 문제점이 있으므로 이에 대한 새로운 기술 개발이 필요한 시점이다.However, solar cells based on organic materials are vulnerable to heat and moisture and have poor durability, and when the solar cells are formed and operated as modules, electrical losses occur. Therefore, it is time to develop new technologies for this problem.
본 발명은 상기한 문제점을 해소하기 위하여 발명된 것으로, 단위태양전지셀을 이용하여 다면격자구조의 형성으로 저광량으로 에너지를 생산할 수 있고, 실리콘 단위태양전지셀을 활용하여 내구성을 개선하고, 모듈화 제작 시 안정화가 확보될 수 있도록 간접광을 집광시키기 위한 입체태양전지모듈을 제공하는 것을 기술적 해결과제로 한다.The present invention was invented to solve the above problems, and it is possible to produce energy with a low amount of light by forming a multi-faceted lattice structure using a unit solar cell, improve durability and modularize by utilizing a silicon unit solar cell It is a technical challenge to provide a three-dimensional solar cell module for condensing indirect light so that stabilization can be secured during manufacturing.
상기의 기술적 과제를 해결하기 위하면 본 발명은, 정삼각형의 실리콘 단위태양전지셀은 복수개 연결하여 다면격자구조로 형성되는 것을 특징으로 하는 간접광을 집광시키기 위한 입체태양전지모듈을 제공한다.In order to solve the above technical problem, the present invention provides a three-dimensional solar cell module for condensing indirect light, characterized in that a plurality of regular triangular silicon unit solar cells are connected to form a multi-faceted lattice structure.
본 발명에 있어서, 다면격자구조는 정삼각형 밑면을 가지는 사면체 구조인 간접광을 집광시키기 위한 입체태양전지모듈을 특징으로 한다.In the present invention, the multifaceted lattice structure is characterized by a three-dimensional solar cell module for condensing indirect light, which is a tetrahedral structure having an equilateral triangular base.
본 발명에 있어서, 다면격자구조는 정사각형 밑면을 가지는 피라미드 구조인 간접광을 집광시키기 위한 입체태양전지모듈을 특징으로 한다.In the present invention, the multifaceted lattice structure is characterized by a three-dimensional solar cell module for condensing indirect light, which is a pyramid structure having a square bottom.
본 발명에 있어서, 간접광을 집광시키기 위한 입체태양전지모듈은 상기 다면격자구조를 단위체로 하여 밑변을 인접시킨 복수 집합체로 형성시키는 간접광을 집광시키기 위한 입체태양전지모듈을 특징으로 한다.In the present invention, the three-dimensional solar cell module for condensing indirect light is characterized in that the three-dimensional solar cell module for condensing indirect light is formed as a plurality of aggregates having bases adjacent to each other using the multifaceted lattice structure as a unit.
상기 과제의 해결 수단에 의한 간접광을 집광시키기 위한 입체태양전지모듈에 따르면, 단위태양전지셀을 이용하여 다면격자구조의 형성으로 저광량으로 에너지를 생산할 수 있는 효과가 있다.According to the three-dimensional solar cell module for condensing indirect light by means of solving the above problems, there is an effect of producing energy with a low amount of light by forming a multi-faceted lattice structure using unit solar cells.
본 발명에 있어서, 수분과 열에 취약한 유기물 베이스 태양전지와 달리, 실리콘 단위태양전지셀을 활용하여 내구성을 개선하고, 모듈화 제작시 안정화가 확보될 수 있는 효과가 있다.In the present invention, unlike organic-based solar cells that are vulnerable to moisture and heat, there is an effect that durability can be improved by utilizing silicon unit solar cells and stabilization can be secured during modular manufacturing.
본 발명에 있어서, 입체태양전지모듈에 따라 표면적을 증가시켜 집광 효율을 증가시키는 효과가 있다.In the present invention, there is an effect of increasing the light collection efficiency by increasing the surface area according to the three-dimensional solar cell module.
도 1은 일반적인 실내조명 환경을 나타낸 도면.1 is a view showing a general indoor lighting environment.
도 2는 본 발명의 실리콘 단위태양전지셀을 나타내는 도면.2 is a view showing a silicon unit solar cell of the present invention.
도 3(a)는 본 발명의 사면체 구조 입체태양전지모듈을 나타내는 도면.Figure 3 (a) is a view showing a tetrahedral structure three-dimensional solar cell module of the present invention.
도 3(b)는 본 발명의 피라미드 구조 입체태양전지모듈을 나타내는 도면.3(b) is a diagram showing a pyramid structure three-dimensional solar cell module of the present invention.
도 4는 본 발명의 단위태양전지셀과 입체태양전지모듈의 조명환경에 따른 상대적인 에너지생산량을 나타낸 그래프.Figure 4 is a graph showing the relative energy production according to the lighting environment of the unit solar cell and the three-dimensional solar cell module of the present invention.
도 5는 도 3(a)를 단위체로 하여 복수 집합체를 나타내는 도면.Fig. 5 is a diagram showing a plurality of aggregates using Fig. 3(a) as a unit;
도 6은 도 2와 도 5를 같은 면적으로 제작되었을 때 에너지 생산량을 나타낸 그래프.Figure 6 is a graph showing the energy production when the area of Figure 2 and Figure 5 are manufactured.
이하 도면을 참조하여 본 발명에 관하여 살펴보기로 하며, 본 발명을 설명함에 있어서 관련된 공지기술 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명은 생략할 것이다. Hereinafter, the present invention will be reviewed with reference to the drawings, and in the description of the present invention, if it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. will be.
그리고 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례 등에 따라 달라질 수 있으므로 그 정의는 본 발명을 설명하는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.In addition, the terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user or operator, so the definitions should be made based on the content throughout this specification describing the present invention.
일반적으로 실외에 사용되는 태양전지는 직사광에 의해 빛 에너지를 전기 에너지로 변환하여 생산하므로, 간접광으로 이루어지는 실내에 적용하기에 부적합하다.In general, solar cells used outdoors are produced by converting light energy into electrical energy by direct sunlight, and thus are not suitable for application to indoors with indirect light.
도 1에 도시된 바와 같이, 실내에는 형광등, 백열등, LED와 같은 조명에 의해서 주로 간접광으로 이루어지며, 간접광이란 중간에 매개가 되는 사물에 투영되어 피사체에 간접적으로 전달되는 광선으로 직사광에 비해서 광량이 부족하다. 그러므로 저광량, 실내광 또는 간접광으로 전기에너지를 생산할 수 있는 적합한 형상의 입체태양전지모듈을 제시하고자 한다.As shown in FIG. 1, indoors are mainly composed of indirect light by lighting such as fluorescent lights, incandescent lights, and LEDs. lack of light Therefore, a three-dimensional solar cell module with a suitable shape capable of producing electric energy with low light, indoor light or indirect light is proposed.
본 발명의 실시 예에 따른 입체태양전지모듈(200)은 정삼각형의 실리콘 단위태양전지셀(100)은 복수개 연결하여 다면격자구조로 형성된다.In the three-dimensional solar cell module 200 according to an embodiment of the present invention, a plurality of regular triangular silicon unit solar cells 100 are connected to form a multi-faceted lattice structure.
도 2와 같이, 단위태양전지셀(100)은 정삼각형으로 형성되고, 후단에 전극이 부착되어 전기적으로 연결할 수 있으며, 입체태양전지모듈(200)을 형성할 시 단위태양전지셀(100)간 전기적으로 연결시킬 수 있다.As shown in FIG. 2, the unit solar cell 100 is formed in an equilateral triangle, and an electrode is attached to the rear end so that it can be electrically connected, and when the three-dimensional solar cell module 200 is formed, electrical can be linked to
한편, 실리콘 단위태양전지셀(100)은 단결정, 다결정 또는 비정질의 형태로 구분되어 같은 물질이지만 결정형태에 따라 효율과 특성이 달라져 구분하고 있다. 단결정 실리콘 태양전지는 최초의 태양전지로 실리콘 원자 배열이 규칙적이고 일정하여 전자의 흐름 방해가 없어 에너지 변환효율이 높으며, 흐린 날에도 비교적 발전이 양호하고, 내구성이 좋다. 그리고 다결정 실리콘 태양전지는 단결정 실리콘 태양전지에 비해 생산 공정이 간단하고 가격도 상대적으로 저렴한 장점이 있다.On the other hand, the silicon unit solar cell 100 is classified into a single crystal, polycrystalline or amorphous form, and although it is the same material, efficiency and characteristics are different depending on the crystal form. The monocrystalline silicon solar cell is the first solar cell, and the arrangement of silicon atoms is regular and constant, so there is no interference with the flow of electrons, so the energy conversion efficiency is high, and the power generation is relatively good even on cloudy days, and the durability is good. In addition, the polycrystalline silicon solar cell has advantages of a simple production process and a relatively low price compared to the monocrystalline silicon solar cell.
일반적인 실내광용 태양전지는 유기물을 베이스로 하는 태양전지이기 때문에, 열과 수분에 취약하여 내구성이 떨어지는 문제점과 태양전지셀을 모듈화를 시키게 되면 전기적 손실이 발생하여 안정적이지 못한 문제점이 있다.Since a typical solar cell for indoor light is a solar cell based on organic materials, it is vulnerable to heat and moisture and thus has poor durability, and when a solar cell is modularized, electrical loss occurs and it is not stable.
그러나 본 발명은 실리콘 단위태양전지셀(100)로 다면격자구조의 입체태양전지모듈(200)을 형성시키므로, 내구성을 개선시키고 모듈화를 시켰을때 안정화가 될 수 있으며, 표면적을 증가시켜 집광 효율을 향상시킨다.However, since the present invention forms the three-dimensional solar cell module 200 of the multi-faceted lattice structure with the silicon unit solar cell 100, it can be stabilized when the durability is improved and modularized, and the surface area is increased to improve the light collection efficiency let it
또한, 단위태양전지셀(100)보다 입체태양전지모듈(200)이 공간 활용도가 높으므로 단위면적 대비 에너지 생산 효율을 높일 수 있다.In addition, since the three-dimensional solar cell module 200 has higher space utilization than the unit solar cell 100, energy production efficiency compared to the unit area can be increased.
또한, 도 3(a)와 같이 입체태양전지모듈(200)의 다면격자구조는 정삼각형 밑면을 가지는 사면체 구조를 가지거나, 도3(b)와 같이 정사각형 밑면을 가지는 피라미드 구조로 이루어질 수 있다.In addition, the multifaceted lattice structure of the three-dimensional solar cell module 200 as shown in FIG. 3 (a) may have a tetrahedral structure with an equilateral triangular base or a pyramid structure with a square base as shown in FIG. 3 (b).
도 4는 조명환경에 따른 다면격자구조의 상대적인 에너지생산량을 나타낸 그래프를 나타낸다. 먼저 가로축은 왼쪽에서부터 단위태양전지셀(100), 피라미드 구조(240), 사면체 구조(220)를 의미하고, 세로축은 에너지 생산량을 의미한다. 그리고 막대그래프의 연한색에서 진한색으로 변할수록 직사광보다 간접광의 영향이 더 크다는 의미를 가진다.4 shows a graph showing the relative energy production of the multifaceted lattice structure according to the lighting environment. First, the horizontal axis means the unit solar cell 100, the pyramid structure 240, and the tetrahedral structure 220 from the left, and the vertical axis means the energy production. And as the bar graph changes from light color to dark color, it means that the effect of indirect light is greater than that of direct light.
특히, 간접광 환경이 강한 막대그래프를 비교해보았을 때, 사면체 구조(220)의 에너지 생산량이 제일 높으며, 그 다음은 피라미드 구조(240), 단위태양전지셀(100) 순인 것을 실험을 통해 확인할 수 있었다.In particular, when comparing bar graphs with a strong indirect light environment, it was confirmed through experiments that the tetrahedral structure 220 has the highest energy production, followed by the pyramid structure 240 and the unit solar cell 100 in order. .
즉, 간접광 환경에서 에너지 생산 효율은 사면체 구조(220)에서 가장 높고, 평판의 단위태양전지셀(100)은 간접광 환경에서 에너지 생산 효율이 가장 낮은 것을 확인할 수 있다.That is, it can be seen that the tetrahedral structure 220 has the highest energy production efficiency in an indirect light environment, and the flat unit solar cell 100 has the lowest energy production efficiency in an indirect light environment.
또한, 단위태양전지셀(100) 간은 전기적으로 직렬 또는 병렬로 연결될 수 있고, 직-병렬로 연결될 수도 있다. 일반적으로 고전압, 저전류인 경우에는 직렬연결이 바람직하고, 저전압, 고전류인 경우에는 병렬연결이 바람직하며, 간접광 환경에 맞추어 직-병렬 연결을 혼합적으로 구성될 수 있다.In addition, unit solar cells 100 may be electrically connected in series or parallel, or may be connected in series-parallel. In general, in the case of high voltage and low current, series connection is preferable, and in the case of low voltage and high current, parallel connection is preferable.
더불어, 입체태양전지모듈(200)은 다면격자구조를 단위체로 하여 밑변을 인접시킨 복수 집합체(300)로 형성될 수 있다.In addition, the three-dimensional solar cell module 200 may be formed of a plurality of aggregates 300 in which bases are adjacent to each other using a multifaceted lattice structure as a unit.
도 6에 도시된 바와 같이, 도 5에 나타난 집합체(300)의 밑면 외 겉넓이는 24cm²로, 동일 넓이인 24cm²로 형성되는 단위태양전지셀(100)과 비교해보았을 때, 평판의 단위태양전지셀(100)보다 입체구조의 집합체(300)의 에너지생산량이 더 높은 것을 실험을 통해 확인할 수 있었다.As shown in FIG. 6, the surface area other than the bottom of the assembly 300 shown in FIG. 5 is 24 cm², compared to the unit solar cell 100 formed with the same area of 24 cm², the flat unit solar cell cell. It was confirmed through experiments that the energy production of the three-dimensional aggregate 300 was higher than that of (100).
즉, 간접광에서는 평판으로 이루어진 단위태양전지셀(100)보다 다면격자구조를 단위체인 복수 집합체(300)가 에너지 생산량이 더 높은 것을 알 수 있다.That is, in indirect light, it can be seen that the plurality of aggregates 300 having a multi-faceted lattice structure as a unit have higher energy production than the unit solar cell 100 made of a flat plate.
상기와 같이 구성되는 입체태양전지모듈(200)에 의하여 실리콘 단위태양전지셀을 활용하여 내구성을 개선시키고, 모듈화 제작시 안정화를 이룰 수 있으며, 저광량, 실내광 및 간접광으로 에너지를 생산할 수 있도록 최적화된 형상으로 형성될 수 있다.By using the three-dimensional solar cell module 200 configured as described above, durability can be improved by utilizing silicon unit solar cells, stabilization can be achieved during modularization, and energy can be produced with low light, indoor light and indirect light. It can be formed into an optimized shape.
또한, 입체태양전지모듈(200) 및 집합체(300)는 실내의 책상, 선반 위에 두고 저전력 실내 전자 장치와 연결하여 활용할 수 있다.In addition, the three-dimensional solar cell module 200 and the assembly 300 can be placed on a desk or shelf indoors and connected to a low-power indoor electronic device to be used.
이상 본 발명의 설명을 위하여 도시된 도면은 본 발명이 구체화되는 하나의 실시예로서 도면에 도시된 바와 같이 본 발명의 요지가 실현되기 위하여 다양한 형태의 조합이 가능함을 알 수 있다.The drawings shown for the purpose of explanation of the present invention above are one embodiment in which the present invention is embodied, and as shown in the drawings, it can be seen that various types of combinations are possible in order to realize the gist of the present invention.
따라서 본 발명은 상기한 실시예에 한정되지 않고, 이하의 특허청구범위에서 청구하는 바와 같이 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경실시가 가능한 범위까지 본 발명의 기술적 정신이 있다고 할 것이다.Therefore, the present invention is not limited to the above-described embodiments, and as claimed in the following claims, anyone with ordinary knowledge in the field to which the present invention belongs can make various changes without departing from the gist of the present invention. It will be said that there is a technical spirit of the present invention to the extent possible.

Claims (4)

  1. 정삼각형의 실리콘 단위태양전지셀은 복수개 연결하여 다면격자구조로 형성되는 것을 특징으로 하는 간접광을 집광시키기 위한 입체태양전지모듈.A three-dimensional solar cell module for condensing indirect light, characterized in that a plurality of equilateral triangular silicon unit solar cells are connected to form a multi-faceted lattice structure.
  2. 제 1항의 다면격자구조는 The multi-faceted lattice structure of claim 1 is
    정삼각형 밑면을 가지는 사면체 구조인 것을 특징으로 하는 간접광을 집광시키기 위한 입체태양전지모듈.A three-dimensional solar cell module for condensing indirect light, characterized in that it has a tetrahedral structure with an equilateral triangular base.
  3. 제1항의 다면격자구조는The multi-faceted lattice structure of paragraph 1 is
    정사각형 밑면을 가지는 피라미드 구조인 것을 특징으로 하는 간접광을 집광시키기 위한 입체태양전지모듈.A three-dimensional solar cell module for condensing indirect light, characterized in that it has a pyramid structure having a square bottom.
  4. 제 1항에 있어서,According to claim 1,
    간접광을 집광시키기 위한 입체태양전지모듈은The three-dimensional solar cell module for condensing indirect light is
    상기 다면격자구조를 단위체로 하여 밑변을 인접시킨 복수 집합체로 형성시키는 것을 특징으로 하는 간접광을 집광시키기 위한 입체태양전지모듈.A three-dimensional solar cell module for condensing indirect light, characterized in that the multifaceted lattice structure is formed as a unit and formed into a plurality of aggregates in which bases are adjacent.
PCT/KR2021/018189 2021-10-28 2021-12-03 Three-dimensional solar cell module, for concentrating indirect light WO2023075007A1 (en)

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