WO2012165899A2 - Module de cellule solaire à forte concentration lumineuse - Google Patents

Module de cellule solaire à forte concentration lumineuse Download PDF

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Publication number
WO2012165899A2
WO2012165899A2 PCT/KR2012/004344 KR2012004344W WO2012165899A2 WO 2012165899 A2 WO2012165899 A2 WO 2012165899A2 KR 2012004344 W KR2012004344 W KR 2012004344W WO 2012165899 A2 WO2012165899 A2 WO 2012165899A2
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WO
WIPO (PCT)
Prior art keywords
solar cell
light
module
light guide
incident
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2012/004344
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English (en)
Korean (ko)
Other versions
WO2012165899A3 (fr
Inventor
박기성
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEEON IPL CO Ltd
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LEEON IPL CO Ltd
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Publication date
Application filed by LEEON IPL CO Ltd filed Critical LEEON IPL CO Ltd
Publication of WO2012165899A2 publication Critical patent/WO2012165899A2/fr
Publication of WO2012165899A3 publication Critical patent/WO2012165899A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/484—Refractive light-concentrating means, e.g. lenses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting or light-concentrating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/40—Thermal components
    • H02S40/42—Cooling means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/413—Optical elements or arrangements directly associated or integrated with the devices, e.g. back reflectors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/60—Arrangements for cooling, heating, ventilating or compensating for temperature fluctuations
    • H10F77/63—Arrangements for cooling directly associated or integrated with photovoltaic cells, e.g. heat sinks directly associated with the photovoltaic cells or integrated Peltier elements for active cooling
    • 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 high-concentration solar cell module, and in particular, a high-concentration solar cell capable of arranging solar cells vertically and forming a light guide module to focus incident sunlight with high efficiency, thereby reducing light loss and reducing the overall module thickness. It is about a module.
  • the light concentrating solar cell module used to use solar energy as an alternative energy condenses sunlight at a magnification of several hundred times using an optical system such as a lens or a reflector, and then has a high efficiency III-V having a small area. It is a next generation photovoltaic module that generates power by injecting into a group compound semiconductor solar cell. Such a concentrating solar cell module has a merit of realizing high power generation efficiency and low manufacturing cost compared to a flat panel solar cell module using a conventional silicon solar cell.
  • the condensing solar cell module is a refractive solar cell module that focuses sunlight using a fresnel lens and a reflective solar cell module that condenses sunlight using a parabolic reflector according to a method of concentrating sunlight. Divided.
  • FIG. 1 is a view schematically showing a light collecting solar cell module according to the prior art.
  • the light collecting solar cell module 10 has a fresnel lens 12 having a length A1 of a cross section of the light collecting module 12 and a focal length f1 of a housing ( 11) is provided on the upper surface, when the sunlight is input through the light collecting module 12 in a parallel state, the light is focused to one focal point, and the light collected as described above is a group III-V compound semiconductor component It is transmitted to the solar cell 14 having, and the concentrated solar energy is converted into electrical energy.
  • the solar cell 14 is attached to the hybrid IC substrate 15 provided with a bypass diode and a connector. At this time, by using the heat sink 16 attached to the lower surface of the housing 11 to effectively release the heat generated from the solar cell 14 it can prevent the temperature of the solar cell 14 rises. .
  • the light concentrating solar cell module uses a compound semiconductor cell having a small area of 500: 1 to 1000: 1 as the solar cell, thereby reducing the area of the solar cell itself which occupies a large part of the manufacturing cost of the solar cell module. In manufacturing, manufacturing costs can be reduced.
  • the light concentrating solar cell module has a temperature coefficient of output power of about -0.06% / o C, so that the light concentrating solar cell module can be installed in a high temperature desert area.
  • the light collecting solar cell module has a problem that should always be installed on the top of the tracking device moving along the sun.
  • solar light scattered due to external weather conditions for example, clouds, fog, or moisture, dust, etc. in the air, may not be focused on the solar cell, and thus, the scattered sunlight may not be absorbed by the solar cell.
  • the solar cell module has a problem that the thickness of the solar cell module is thickened by using an optical system for condensing light for condensing sunlight.
  • the problem is that both the refractive solar cell module using the Fresnel lens and the reflective solar cell module using the parabolic reflector increase the light condensing rate, and the light loss generated through the condensing optical system despite the high condensing rate. Since the focal length of the solar light should be made long in order to prevent the problem, this causes a problem that the overall thickness of the light collecting solar cell module becomes thick.
  • FIG. 2 is a graph showing light transmittance according to a focal length in the solar cell module of FIG. 1.
  • the curve for the light collecting solar cell module can be seen that the number of f of sunlight is 1 or more in order to obtain a light transmittance of 80% or more.
  • the number f refers to the focal length of the solar light collected through the light collecting module divided by the diameter length of the light collecting module.
  • a focal length must be 45 cm or more, and as a result, the overall size and weight of the solar cell module also increase. do.
  • the technical problem to be solved by the present invention is to provide a high-concentration solar cell module that can arrange the solar cells vertically and form a light guide module to collect incident sunlight with high efficiency to reduce light loss and reduce the overall module thickness.
  • the high-concentration solar cell module for solving the above technical problem, in the solar cell module for condensing sunlight to convert solar energy into electrical energy, a plurality of convex lenses for condensing the sunlight incident vertically A condensing module of the shape; A light guiding module for reflecting sunlight incident on the light collecting module at least once to switch the light path horizontally; It is characterized in that it comprises a solar cell which is arranged vertically in the center of the light guide module in a point-symmetrical form, and generates electrical energy by condensing solar light horizontally converted from the light guide module.
  • the hybrid IC substrate is provided perpendicular to the center of the light guide module and attached to one surface of the solar cell, and the heat sink is provided on another surface of the hybrid IC substrate to emit heat have.
  • the heat sink is characterized in that it is formed in the central portion of the light guide module and the pillar portion to which the hybrid IC substrate is attached and the cooling fins provided in the lower portion of the light guide module to release heat.
  • the solar cell is characterized in that a region in which sunlight is incident from the light guide module is divided in correspondence to the number disposed perpendicular to the center of the light guide module.
  • the solar cell is divided into 180 degrees when two are arranged, 120 degrees when three are arranged, 90 degrees when four are arranged, and 90 degrees when four are arranged, and 60 degrees when six are arranged.
  • the light guide module is characterized in that the light guide module forms a reflective layer therein so that the angle of the incident light and the incident light is totally reflected over a range smaller than 48 degrees so that the light guide module is incident on the solar cell.
  • the reflective layer of the light guide module is characterized in that formed in the vicinity of 45 degrees and 135 degrees region.
  • the light guide module is formed of PMMA or glass having a refractive index of 1.5
  • the reflective layer is formed of an air layer having a refractive index of 1, which is characterized by total reflection at the interface of the reflective layer.
  • a reflector is formed on the inner lower surface of the light guide module to change the optical path of the sunlight incident from the light collecting module in a horizontal direction.
  • the reflector is characterized in that it is formed of a concave parabolic reflector, a planar reflector, or a convex parabolic reflector having a predetermined inclination angle.
  • the thickness of the central portion of the light guide module is characterized in that the inclined surface to form the same as the height of the solar cell.
  • the inclined surface is characterized in that the light transmitted from the light guide module is formed at an angle ⁇ so that the total internal reflection by the inclined surface is incident on the solar cell.
  • the condensing module is characterized in that it is formed of a plurality of concentric lenses of concentric circles.
  • the position of the solar cell is characterized in that it is disposed at a distance L / 4 when the length L of the solar cell from the light converging center point of sunlight incident on the solar cell from the light guide module.
  • the light concentrating solar cell module can arrange a solar cell vertically and form a light guiding module to condense incident sunlight with high efficiency, thereby reducing light loss and reducing the overall module thickness.
  • FIG. 1 is a view schematically showing a light collecting solar cell module according to the prior art.
  • Figure 2 is a graph showing the light transmittance according to the focal length in the solar cell module of FIG.
  • Figure 3 is a perspective view schematically showing the structure of a high light collecting solar cell module according to a first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view schematically showing the structure of FIG.
  • FIG. 5 is a perspective view showing the structure of a light guide module according to the present invention.
  • FIG. 6 is a view showing that the sunlight is reflected by the reflective layer formed in the light guide module of the present invention incident on the solar cell.
  • FIG. 7A is a plan view in which a reflective layer having a structure in which two solar cells of the present invention are disposed;
  • FIG. 7B is a plan view in which a reflective layer having a structure in which four solar cells of the present invention are disposed is formed.
  • FIG. 8 is a cross-sectional view schematically showing the structure of a high light collecting solar cell module according to a second embodiment of the present invention.
  • FIG. 9 is a cross-sectional view schematically showing the structure of a highly light-concentrating solar cell module according to a third embodiment of the present invention.
  • FIG. 10 is a cross-sectional view schematically showing the structure of a high light collecting solar cell module according to a fourth embodiment of the present invention.
  • FIG. 3 is a perspective view schematically showing the structure of a highly light-concentrating solar cell module according to a first embodiment of the present invention
  • FIG. 4 is a cross-sectional view schematically showing the structure of FIG. 3.
  • the solar cell module 300 according to the present invention, in the solar cell module for condensing the sunlight to convert solar energy into electrical energy, the solar light incident vertically
  • a convex lens-shaped condensing module 310 composed of a plurality of compartments for condensing, and a light guide module for converting the light path incident to the condensing module 310 at least once in each compartment to switch the light path horizontally.
  • a hybrid IC substrate 331 disposed perpendicular to the center of the light guide module 320 and attached to one surface of the solar cell, and provided on another surface of the hybrid IC substrate 332.
  • a housing 340 surrounding the light guide module, the solar cell, the hybrid IC substrate, and the heat sink.
  • the condensing module 310 is disposed on the upper surface of the housing 340 to condense the sunlight into predetermined sections.
  • the condensing module 310 divides and divides the upper surface of the housing 340 into concentric circles, and arranges the convex lens 311 for each section.
  • the focal position P1 at which the sunlight is collected is changed according to the length of the convex lens 311, the thickness becomes lower as the length of the convex lens 311 is shorter. As a result, the overall size of the solar cell module 300 is reduced.
  • FIG. 5 is a perspective view illustrating a structure of a light guide module according to the present invention
  • FIG. 6 is a view illustrating that the sunlight is reflected by the reflective layer formed in the light guide module of the present invention and is incident on the solar cell.
  • the light guide module 320 is formed of PMMA or glass having a refractive index of 1.5, and the reflective layers 321a and 321b are formed of an air layer having a refractive index of 1. Total reflection is performed at the interface between the reflective layers 321a and 321b.
  • the light guide module 320 forms reflective layers 321a and 321b therein so that the angle of sunlight incident to the reflective layers 321a and 321b is totally reflected for a range smaller than 48 degrees to be incident on the solar cell. do.
  • the reflective layers 321a and 321b are formed near the 45 degree and 135 degree regions in the solar cell module in which two solar cells are built in the center.
  • the sunlight incident on the region-I between 0 degrees and 45 degrees among the sunlight transmitted toward the center from the light guide module is the reflection layer-1.
  • the light After total internal reflection at the outside of the solar cell, the light is collected in the A section of the solar cell, and the incident light in the region-II between 45 and 90 degrees is directly collected by the C section of the solar cell without reflection.
  • Light is collected in section B, and sunlight in region-IV is reflected by reflective layer-2, and then focused in section D.
  • the position of the solar cell 330 is set such that the condensing center point on the plane is slightly above the solar cell. More specifically, sunlight inside the two reflective layers 321a and 321b, i.e. between 45 degrees and 135 degrees, is incident on the inner half of the solar cell after passing through the focusing center point, in which case between the focusing point and the solar cell
  • the distance d is about L / 4 when the length of the solar cell is L.
  • the position and the angle at which the reflective layers 321a and 321b are formed are described with reference to the reflective layer-2.
  • sunlight incident toward the center point in the vicinity of the upper 135 degrees of the region-IV is the uppermost portion of the reflective layer-2.
  • the reflected light is incident on the outermost part of the D section of the solar cell and the incident light at 180 degrees parallel to the solar cell is reflected at the lower end of the opposite side of the reflecting layer, so that the innermost part of the D section of the solar cell, that is, the The position and angle of the reflective layer can be determined so as to be focused near the boundary line of the C section.
  • the material of the light guiding module 320 is glass or PMMA having a refractive index of about 1.5
  • the total internal reflection at an interface of the reflective layer formed of an air layer having a refractive index of 1 is within about 48 degrees.
  • the resulting angle ⁇ 1 should be less than 48 degrees.
  • a planar reflector is formed on the inner lower surface of the light guiding module 320 to reflect the sunlight incident from the light converging module so that the traveling direction of the sunlight is changed from the vertical state to the horizontal direction.
  • the thickness of the central portion of the light guide module 320 forms an inclined surface equal to the height of the solar cell.
  • the inclined surface is formed at an angle ⁇ 2 so that the light transmitted from inside the light guide module proceeds to total internal reflection by the inclined surface and is incident on the solar cell.
  • ⁇ 2 is an angle at which the heights of the light guide module and the solar cell are the same.
  • FIG. 7A is a plan view in which a reflective layer having a structure in which two solar cells of the present invention are formed
  • FIG. 7B is a plan view in which a reflective layer having a structure in which four solar cells of the present invention is disposed.
  • the solar cell is divided into a region in which sunlight is incident from the light guiding module corresponding to the number disposed perpendicularly to the center of the light guiding module.
  • a structure in which two solar cells are disposed has a reflective layer formed at a 48 degree region on both the left and right sides of the solar cell, and forms a reflective boundary surface of the reflective layer and incident sunlight. It is formed similarly to a two-dimensional parabolic curve such that the angle is ⁇ 1 .
  • a reflective layer having four solar cells is formed in a corner region of each side of the solar cell and both sides of a neighboring solar cell.
  • the loss of light can be reduced by forming the solar cell so as not to deviate from both sides by reflecting the incident sunlight.
  • the solar cell 330 is divided into 180 degrees when two are arranged, 120 degrees when three are arranged, 120 degrees when four are arranged, 90 degrees when four are arranged, and 60 degrees when six are arranged.
  • the solar cell 330 receives solar light from the light guide module 320 and converts solar energy into electrical energy to generate electrical energy.
  • the heat sink 332 is formed at a central portion of the light guide module 320 and has a pillar portion to which the hybrid IC substrate 331 is attached, and a cooling fin provided at a lower portion of the light guide module to release heat.
  • the solar energy collected by the solar cell 330 is converted into electrical energy, and an anode and a cathode electrode formed on the solar cell 330 are lower than the solar cell 330.
  • the electrical energy is transferred to the outside by the hybrid IC substrate 170 disposed in the.
  • the hybrid IC substrate 331 is preferably made of alumina (alumina).
  • the heat sink 332 since the heat sink 332 is disposed on the other surface of the hybrid IC substrate 331, the heat sink 332 surrounds both the solar cell 332 and the hybrid IC substrate 331. Protect from heat or the external environment.
  • FIG 8 is a cross-sectional view schematically showing the structure of a high light collecting solar cell module according to a second embodiment of the present invention.
  • the solar cell module 400 according to the second embodiment of the present invention is the same as the solar cell module 300 of the first embodiment described with reference to FIGS. Only the parts will be described below.
  • the solar light collected through the light collecting module 420 is transferred to the light guiding module 430, and the solar light is collected at the first focus P1.
  • the solar light formed at the first focus P1 reaches the parabolic reflector disposed under the light guide module 430, and the sunlight reaching the parabolic reflector is reflected by the parabolic reflector.
  • the traveling direction is changed from the vertical direction to the horizontal direction.
  • the reflection of sunlight by the parabolic reflector may be total internal reflection by the difference between the refractive index of the light guide module 430 and the refractive index of the outside air, the metal formed on the lower surface of the light guide module 430 Total reflection may occur by the coating layer.
  • FIG. 9 is a cross-sectional view schematically showing the structure of a highly light-concentrating solar cell module according to a third embodiment of the present invention.
  • the same parts as those of the solar cell module 300 of the first embodiment described with reference to FIGS. 3 to 7 will be omitted. Only the parts that are included will be described below.
  • the convex parabolic reflector has a convex shape on one side so that the solar light collected through the condensing module 510 is condensed toward the center of the light guiding module 520. It is arranged on the lower surface in the form.
  • the sunlight is formed at the second focus P2.
  • the traveling direction is horizontally changed by the convex parabolic reflector in which the upper part and the lower part are reversed.
  • FIG 10 is a cross-sectional view schematically showing the structure of a highly light-concentrating solar cell module according to a fourth embodiment of the present invention.
  • the solar cell module 600 according to the fourth embodiment of the present invention is the same as the solar cell module 300 of the first embodiment described with reference to FIGS. Only the parts that are included will be described below.
  • the solar light is first collected through the convex lens 611 arranged in each compartment, and the solar light collected by the one convex lens 611 is focused on the third focus point P3. do.
  • the solar light collected through the light collecting module 610 is transferred to the light guiding module 620 so that the solar light is formed at the third focus P3.
  • the solar light formed at the third focus P3 reaches a reflector disposed under the light guide module 620, and the sunlight reaching the reflector is reflected by the reflector so that its traveling direction is vertical. In the horizontal direction.
  • the light guide module 620 includes a parabolic reflector disposed to be inclined by the inclination angle ⁇ 3 on the lower surface of the light guide module 620 so that the collected solar light is collected by the solar cell 630.
  • the parabolic reflector is inclined upwardly by an inclination angle ⁇ 3 as compared to the parabolic reflector shown in FIG. 8.
  • the inclination angle ⁇ 3 of the parabolic reflector is preferably calculated through Equation 1 below using the thickness of the parabolic reflector and the diameter length of the convex lens of the light converging module.
  • the d is the thickness of the parabolic reflector
  • the a1 represents the diameter length of the convex lens. Accordingly, it can be seen that the inclination angle ⁇ 3 of the parabolic reflector is proportional to the thickness d of the parabolic reflector and inversely proportional to the diameter length a1 of the convex lens disposed in the condensing module.
  • the present invention can be used by vertically arranging solar cells and forming a light guide module to collect incident sunlight with high efficiency, thereby reducing light loss and reducing the overall module thickness.

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  • Photovoltaic Devices (AREA)

Abstract

Selon la présente invention, un module de cellule solaire à forte concentration lumineuse recueille la lumière solaire et convertit l'énergie solaire en énergie électrique, et comprend : une pluralité de modules collecteurs de lumière en forme de lentille convexe destinés à collecter la lumière solaire verticalement incidente ; un module de guidage de la lumière destiné à réfléchir, une ou plusieurs fois, la lumière solaire incidente par rapport aux modules collecteurs de lumière de manière à convertir un trajet de lumière en un trajet horizontal ; et un nombre prédéterminé de cellules solaires agencées verticalement au niveau du centre du module de guidage de la lumière de manière à former une symétrie ponctuelle pour produire de l'énergie électrique au moyen de la collecte de la lumière solaire convertie en un trajet horizontal par le module de guidage de la lumière.
PCT/KR2012/004344 2011-06-03 2012-06-01 Module de cellule solaire à forte concentration lumineuse Ceased WO2012165899A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020110053882A KR101327211B1 (ko) 2011-06-03 2011-06-03 고집광형 태양전지모듈
KR10-2011-0053882 2011-06-03

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WO2012165899A2 true WO2012165899A2 (fr) 2012-12-06
WO2012165899A3 WO2012165899A3 (fr) 2013-03-28

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KR101851138B1 (ko) * 2015-11-23 2018-04-23 주식회사 지피 단일 광학계를 이용한 집광형 태양전지모듈

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JPH11340493A (ja) * 1998-05-22 1999-12-10 Toyota Motor Corp 太陽光集光装置
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KR100974016B1 (ko) * 2008-03-17 2010-08-05 주식회사 티지솔라 씨스루형 태양전지
DE102008030819A1 (de) * 2008-06-30 2009-12-31 Osram Opto Semiconductors Gmbh Optoelektronische Vorrichtung
KR101057790B1 (ko) * 2009-02-03 2011-08-19 테라웨이브 주식회사 집광형 태양광 발전 모듈

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KR20120134745A (ko) 2012-12-12
KR101327211B1 (ko) 2013-11-11

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