WO2008059593A1 - Dispositif de cellule solaire superposée - Google Patents
Dispositif de cellule solaire superposée Download PDFInfo
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- WO2008059593A1 WO2008059593A1 PCT/JP2006/323017 JP2006323017W WO2008059593A1 WO 2008059593 A1 WO2008059593 A1 WO 2008059593A1 JP 2006323017 W JP2006323017 W JP 2006323017W WO 2008059593 A1 WO2008059593 A1 WO 2008059593A1
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- Prior art keywords
- solar cell
- rod
- modules
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- cell device
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Classifications
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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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/0352—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
- H01L31/035272—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions characterised by at least one potential jump barrier or surface barrier
- H01L31/035281—Shape of the body
-
- 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
-
- 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
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
- H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell 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
- 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
-
- 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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, 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
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- 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 stacked solar cell device in which a plurality of solar cell modules having different sensitivity wavelength bands are stacked in order to effectively use a wide range of wavelength components in the sunlight spectrum, and in particular, a semiconductor forbidden band.
- the present invention relates to a solar cell module having a large width, that is, a stack type solar cell device in which the center wavelength of the sensitivity wavelength band is short and the solar cell module is stacked on the sunlight incident side.
- solar cells As solar cells, (A) planar light-receiving solar cells, (B) granular solar cells arranged in multiple rows and columns in a panel form, and (C) multiple fiber-type solar cells A solar cell arranged in a shape, (D) a tandem solar cell, (E) a stack solar cell, and the like are known.
- the solar cell (B) has been proposed in, for example, WO02 / 35613, WO03Z017383, WO03Z036731, WO2004Z001858, and the like.
- the solar cell (C) is proposed in, for example, US Pat. No. 3,984,256 and US Pat. No. 5,437,736.
- the tandem solar cell of (D) is optimal for each sensitivity wavelength band by dividing the sensitivity wavelength band of the solar spectrum into a plurality of areas in order to improve the photoelectric conversion efficiency of the single planar light receiving cell.
- a pn junction is made of a semiconductor having a large forbidden band width, and the crystal is continuously grown on a common semiconductor substrate.
- the stack type solar cell of (E) uses a semiconductor having an optimum forbidden bandwidth for each sensitivity wavelength band of the solar spectrum in order to increase the utilization efficiency and photoelectric conversion efficiency of the solar spectrum.
- a flat solar cell module is manufactured from the solar cells made, and multiple types of solar cell modules are stacked vertically.
- a technique for increasing the energy density by collecting sunlight with a lens or a reflector is also employed. In this case, since a high output can be obtained with a relatively small light receiving area as much as possible to improve the photoelectric conversion efficiency, the cost of the solar cell can be reduced.
- the inventor of the present application uses a semiconductor having a different forbidden band width from a planar light receiving type solar cell module.
- Multiple types of solar cell modules incorporating multiple spherical solar cells made in multiple rows and multiple examples are manufactured independently, and these solar cell modules have a larger forbidden band and the incident light from sunlight.
- Patent Literature l WO02Z35613
- Patent Document 2 WO03Z017383
- Patent Document 3 WO03 / 036731
- Patent Document 4 WO2004Z001858
- Patent Document 5 US Patent No. 3,984,256
- Patent Document 6 US Patent No. 5,437,736
- Patent Document 7 US Patent No. 4,834,805
- Patent Document 8 U.S. Pat.No. 4,834,805
- Patent Document 9 US Patent No. 4,638,110
- Patent Document 10 US Patent No. 5,482,568
- Patent Document 11 US Patent No. 6,252,155
- Patent Document 12 US Patent No. 6,653,551
- Patent Document 13 US Patent No. 6,440,769
- Patent Document 14 WO2005Z088733
- the number of spherical solar cells increases. Inevitably, the number of locations where the cells are electrically connected increases, so that the assembly cost including the cost of connection becomes expensive, and the reliability of the device tends to decrease. In addition, even if a large number of spherical solar cells are arranged as densely as possible, there is a gap that is not filled, and particularly when light collected by a lens is received, the light that passes through the gap cannot be used sufficiently. there were.
- An object of the present invention is to provide a stack type solar cell device incorporating at least one type of solar cell module having a plurality of rod-shaped solar cell powers having a partially cylindrical pn junction and a pair of strip-like electrodes.
- the stack type solar cell device is a stack type solar cell device in which a plurality of solar cell modules are stacked in a plurality of layers, and is a plurality of types of solar cell modules having different sensitivity wavelength bands.
- a solar cell module having a short center wavelength is provided with a plurality of types of solar cell modules stacked so as to be positioned on the sunlight incident side, and at least one type of solar cell module has a plurality of rod-shaped solar cells.
- the rod type solar cell is composed of a rod-shaped semiconductor crystal having a circular or partially circular cross-section made of a p-type or n-type semiconductor.
- a rod-shaped solar cell is a cell having a rod-shaped substrate, a separate conductive layer having a conductivity type different from the conductivity type of the substrate, a partially cylindrical pn junction, and the axis of the substrate. Pn connection provided at both ends of In this case, the distance from each point of the pn junction to the first and second electrodes can be maintained at a substantially constant small value. As a result, the entire pn junction uniformly generates photovoltaic power, so that the photoelectric conversion efficiency of the rod-shaped solar battery cell can be kept high.
- a plurality of apertures can be obtained by changing the diameter of the substrate.
- the voltage generated in the submodule can be changed by changing the number of solar cells.
- Solar cell modules consisting of multiple rod-receiving sub-modules have a configuration in which multiple rod-receiving sub-modules are connected in parallel, and are generated in the solar cell module by changing the number of sub-modules connected in parallel. Can be changed.
- the length in the axial center direction can be set to a size of several to tens of times the diameter of the base material, compared to a granular solar cell,
- the light-receiving area can be significantly increased, and a rod-receiving sub-module can be configured by arranging a plurality of rod-shaped solar cells closely and in parallel, and the ratio of the light-receiving area to the projected area of sunlight. Can be increased, and the light receiving efficiency for receiving sunlight can be increased.
- the number of connection points for electrically connecting the solar cells may be significantly reduced as compared to a submodule incorporating a plurality of granular solar cells.
- the assembly cost of the submodule including the connection cost can be greatly reduced.
- This solar cell device is a plurality of types of solar cell modules having different sensitivity wavelength bands, and a plurality of solar cell modules stacked such that a solar cell module having a shorter center wavelength in the sensitivity wavelength band is positioned closer to the sunlight incident side. Since solar cell modules of various types are provided, sunlight in a wide wavelength range in the solar spectrum can be photoelectrically converted. Because of the shorter wavelength and the lower the light transmittance, the solar cell modules with the shorter center wavelength in the sensitivity wavelength band are stacked so that multiple types of solar cell modules are positioned on the sunlight incident side as described above. By increasing the photoelectric conversion efficiency of each solar cell module Can do.
- this solar cell device a plurality of types of solar cell modules stacked in the vertical direction are connected in series, and their output currents are aligned to substantially the same current, so that the power generation capability of the plurality of types of solar cell modules is achieved. Can be maximized.
- the output of the rod light receiving submodule can be changed by changing the number of rod solar cells connected in series in each submodule. Since the voltage can be adjusted and the output current of the solar cell module can be adjusted by changing the number of parallel connection of multiple rod-receiving submodules, multiple types of solar cell modules stacked vertically It becomes easy to arrange the output currents.
- At least one type of solar cell module is composed of a plurality of planar light receiving submodules each composed of a planar light receiving solar cell having a planar pn junction.
- Each rod light receiving submodule and each planar light receiving submodule are formed so that the light receiving areas for receiving sunlight are equal.
- the plurality of rod-shaped solar cells in the rod-receiving submodule are arranged in parallel with the conductive direction connecting the first and second electrodes aligned in the horizontal direction, and via the first and second electrodes. Electrically connected in series.
- a plurality of rod-receiving sub-modules constituting the solar cell module are connected in parallel and provided with a pair of first connecting rods, and a plurality of the solar cell modules are constituted. Two pairs of second connecting rods are provided to connect the planar light receiving submodules in parallel and connect them together.
- An exterior case made of a metal plate having a recess recessed downward is provided.
- a plurality of types of solar cell modules were stacked and accommodated in the recesses.
- the exterior case has a plurality of parallel recesses arranged horizontally in the width direction of the recesses, and a plurality of types of solar cell modules are housed in a stacked state in each of the plurality of recesses.
- the recess of the outer case has a substantially inverted trapezoidal cross section so that the width of the recess becomes wider upward, and the pair of side walls and the inner surface of the bottom wall of the recess are formed on the light reflecting surface.
- a lens member having a lens portion having a condensing function for condensing sunlight toward the plurality of solar cell modules is provided closer to the sunlight incident side than the plurality of solar cell modules.
- a sealing material made of a transparent synthetic resin is filled in gaps in the plurality of recesses of the outer case, and the outer case and the lens member are packaged.
- a trapezoidal protruding base protruding upward by a predetermined small height is formed on the bottom wall of the outer case.
- a side plug block that closes an end of the recess of the outer case is provided, and a plurality of metal plugs that are electrically connected by inserting the ends of the first and second connecting rods into the side plug block. Connection pipes were provided, and these connection pipes were projected to the outside of the side plug block to form external terminals.
- FIG. 1 is a plan view of a planar light receiving solar cell (submodule) incorporated in a solar cell device according to an embodiment of the present invention.
- FIG. 2 is a sectional view taken along line II-II in FIG.
- FIG. 3 is a bottom view of the solar battery cell of FIG. 1.
- FIG. 4 is a perspective view of a rod-shaped solar battery cell.
- FIG. 5 is a cross-sectional view of a rod-shaped solar battery cell 32.
- FIG. 6 is a right side view of the solar battery cell 32 of FIG.
- FIG. 7 is a left side view of the solar battery cell 32 of FIG.
- FIG. 8 is a cross-sectional view of rod-shaped solar battery cell 52.
- FIG. 9 is a right side view of the solar battery cell 52 of FIG.
- FIG. 10 is a left side view of the solar battery cell 52 of FIG.
- FIG. 11 is an exploded perspective view of a solar cell unit.
- FIG. 12 is a plan view of the solar cell device.
- FIG. 13 is a sectional view taken along line XIII—XIII in FIG.
- FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG.
- 15 is a partial sectional view taken along line XV—XV in FIG.
- FIG. 16 is a perspective view of a side plug block.
- FIG. 17 is a front view of the side plug block.
- FIG. 18 is an enlarged cross-sectional view of the main part of the solar cell device.
- FIG. 19 is an equivalent circuit diagram of a solar cell device.
- FIG. 20 is an explanatory diagram of a solar cell spectrum and spectral sensitivity characteristics of a solar cell device.
- FIG. 21 is a perspective view of a rod-shaped solar battery cell according to a modified example.
- the solar cell device is a stack type solar cell device in which a plurality of solar cell modules are stacked in a plurality of layers, and is a plurality of types of solar cell modules having different sensitivity wavelength bands, and the center of the sensitivity wavelength band.
- Solar cell modules with shorter wavelengths are equipped with multiple types of solar cell modules that are stacked so that they are located on the sunlight incident side.
- At least one type of solar cell module is composed of a plurality of rod-shaped solar cells.
- the rod-shaped solar cell has a specific configuration as described later.
- the concentrating stack type solar cell device 1 includes a stack type solar cell housed in a metal plate outer case 2 and three recesses 3 of the outer case 2, respectively.
- the unit 4, the sealing material 63 filled in the recess 3 (not shown in FIG. 13), the cover glass 5 disposed on the solar light incident side, and the end of the recess 3 of the exterior case 2 are disposed. It consists of side plug block 6 and so on.
- the stack type solar cell unit 4 includes three types of solar cell modules 10, 30, and 50 having different sensitivity wavelength bands, and the incidence of sunlight is larger than the solar cell module having a shorter center wavelength in the sensitivity wavelength band. Three types of solar cell modules 10, 30 and 50 are stacked so as to be positioned on the side.
- the first solar cell module 10 is obtained by connecting five planar light receiving submodules 11 which are planar light receiving solar cells in parallel, and is arranged at the top.
- the second solar cell module 30 is formed by connecting five rod light receiving submodules 31 in which four rod-shaped solar cells 32 are connected in series, in parallel, and is arranged in the next stage after the uppermost stage. ing.
- the third solar cell module 50 has five rod light receiving submodules 51 in which eight rod-shaped solar cells 52 are connected in series and is connected in parallel, and is arranged at the lowest level. In the solar cell unit 4, the three types of solar cell modules 10, 30, 50 are arranged in parallel at predetermined small intervals.
- planar light receiving submodule 11 will be described with reference to FIGS.
- the planar light receiving submodule 11 is composed of a planar light receiving GaAsPZGaP solar cell.
- This GaAsPZGaP solar cell can be manufactured by a method similar to the manufacturing method of a well-known light emitting diode emitting orange light.
- an n-type GaP single crystal wafer is used as the substrate 12, and the n-type GaAsP is formed on the substrate 12 by vapor phase epitaxy (VPE), for example.
- VPE vapor phase epitaxy
- an n-type GaAs P layer 13 having a constant composition is finally grown while forming a graded layer that gradually increases the ratio of As to P from the surface of the n-type GaP substrate 12.
- impurity diffusion is applied to the lower surface of the n-type GaP substrate 12.
- Si N silicon nitride film
- a flat pn junction 15 is formed as a 0.40 layer 14.
- the GaAsPZGaP solar cell 11 is formed so that a plurality of elongated slit windows 16, 17 are opposed to the top and bottom surfaces. Then, a positive electrode 18 and a negative electrode 19 are provided which are ohmically connected to the respective surfaces by sintering. The entire surface except for the positive and negative electrodes 18 and 19 (not shown) is covered with an antireflection film (not shown) such as SiO.
- the first solar cell module 10 includes, for example, five submodules 11 with the positive electrode 18 on the upper surface side and the slit windows 16 and 17 aligned in a line on a plane. Are connected in parallel.
- the connecting rods 20a, 20b made of copper or nickel 'iron alloy rods with a diameter of 0.5-1.0 mm, and attach them to one end of five submodules 11.
- a pair of upper and lower connecting rods 20a and 20b are arranged, and a pair of upper and lower connecting rods 20a and 20b are arranged at the other end.
- Both ends of the positive electrode 18 on the upper surface side of the five submodules 11 are electrically connected to a pair of connecting rods 20a as positive leads by solder or conductive adhesive, and the five submodules 11 Both ends of the negative electrode 19 on the lower surface side of the electrode are electrically connected to a pair of connecting rods 20b as a negative electrode lead with solder or a conductive adhesive.
- the GaAsP layer 13 and the pn junction 15 in the submodule 11 are not limited to vapor phase epitaxy, but may be formed by metal organic chemical vapor deposition (MOCVD) or molecular beam epitaxy (MBE). It can also be formed. In addition, if necessary, a thin p-type window layer with a high P ratio may be additionally provided on the p-type Ga As P layer 14 to display the surface.
- MOCVD metal organic chemical vapor deposition
- MBE molecular beam epitaxy
- the planar light receiving submodule 11 composed of GaAsPZGaP solar cells absorbs light within the spectral sensitivity range (wavelength sensitivity band) indicated by the curve A in FIG. Light having a longer wavelength passes through the slit windows 16 and 17 of the GaAsPZGaP solar cell 11 and travels downward.
- the size of the submodule 11 is, for example, about 7 mm in length, 6 mm in width, and about 0.4 mm in thickness.
- a large number of solar cells can be simultaneously formed on a common GaP substrate 12 of a large size, and then divided into solar cells of the above-mentioned size to increase cell production productivity.
- the rod-shaped solar cell 70 is composed of a semiconductor crystal composed of a single element such as Si or Ge, or a compound semiconductor crystal such as a III-V group element or a II-VI group element.
- the base material 71 is used as the base material.
- the rod-shaped seed crystal for example, in Ge or Si, the rod-shaped seed crystal is brought into contact with the melt (melt) through the small nozzle of the crucible and pulled up or pulled down.
- melt melt
- the rod-shaped seed crystal is brought into contact with the melt (melt) through the small nozzle of the crucible and pulled up or pulled down.
- it is manufactured by a method in which a single crystal rod is continuously grown to be elongated by cooling.
- semiconductors such as Si, Ge, GaAs, and GaSb
- single crystal rods having a diameter of 0.5 to 2.5 mm can be manufactured by this method.
- This elongated rod-shaped semiconductor crystal is divided into lengths of about 3 to 10 times its diameter, and used as a semiconductor crystal base material for producing the rod-shaped solar cell 70.
- the length is not limited to about 3 to 10 times, but may be divided into 10 or more times the diameter of the base material 71 or several tens of times.
- the rod-shaped solar battery cell 70 is manufactured as follows using the above-described circular circular rod-shaped semiconductor crystal as a base material.
- an n-type semiconductor crystal substrate 71 is prepared, and then A part of the surface portion of the base material 71 is cut in parallel with the axial center to form a strip-shaped flat surface 72 (strip-shaped portion) parallel to the axial center.
- the width of the flat surface 72 is about 0.4 to 0.6 times the diameter of the base material 71.
- a partial cylindrical P-type layer 73 is provided on the surface layer of the base material 71, and the partial cylindrical pn junction 74 is connected to the base material 71.
- a strip-like negative electrode 75 is formed which is ohmically connected to the n-type semiconductor crystal (base material 71) and parallel to the axis of the base material 71.
- a band-like positive electrode 76 that is ohmically connected to the surface of the p-type layer 73 on the opposite side of the negative electrode 75 across the axis of the base 71 and parallel to the axis of the base 71 is formed.
- the entire surface other than the positive and negative electrodes 76 and 75 is covered with a transparent insulating antireflection film 77.
- the base material may be formed of a p-type semiconductor, and a partially cylindrical n-type semiconductor layer (separate conductive layer) may be formed on the surface layer.
- a forming method for forming the pn junction 74 of the rod-shaped solar battery cell 70 a known selective impurity diffusion, ion implantation, vapor phase or liquid phase epitaxial growth method can be utilized. Electrode formation and antireflection film formation can also be provided using known techniques, and detailed description thereof is omitted.
- an n-type GaAs single crystal having a circular cross section is prepared by forming a band-like flat surface 34 parallel to the axis of the base material 33.
- the base material 33 In the state where the flat surface 34 of the surface of the base material 33 and the vicinity of both sides thereof are masked with the Si N coating, the base material 33
- the n-type GaAs layer (not shown in the figure) with a uniform thickness is placed on the non-masked partial cylindrical surface of the base material 33 surface after the GaAs melt containing Ga solution is brought into contact with the surface of the substrate at a high temperature. ).
- the P-type Ga Al As layer 36 is continuously grown. This p-shaped
- a p-type GaAs layer 35 (separate conductive layer) is formed by thermal diffusion to a depth in the middle of the cylindrical n-type GaAs layer, and a partial cylinder is formed at the boundary between this p-type GaAs layer 35 and the adjacent n-type GaAs layer.
- a pn junction 37 of the shape is formed.
- a thickness of 20 to 50 / zm is formed in a partial cylindrical region of the surface layer of the base material 33 having a diameter of about 1.7 mm and having a thin n-type GaAs single crystal force without the mask.
- An n-type GaAs layer (not shown) and a p-type GaAlAs layer 36 of l to 2 / zm are continuously grown and 0.5 to 1.0 m from the growth interface of the n-type GaAs layer side.
- a p-type GaAs layer 35 is formed up to the position, and a partially cylindrical ⁇ junction 37 is formed at the boundary between the n-type GaAs layer (not shown) formed by epitaxial growth and the p-type GaAs layer 35.
- the p-type GaAlAs layer 36 functions as a window layer through which light passes, and minority carrier re-growth on the surface of the solar cell 32 is caused by heterojunction at the interface between the p-type GaAs layer 35 and the GaAlAs layer 36. The coupling speed is reduced and the photoelectric conversion efficiency of the GaAs solar cell is improved.
- the Si N coating mask is removed by chemical etching, and the n-type Ga of the substrate 33 is removed.
- the surface of the As layer is exposed on the flat surface 34, and the flat surface 34 on which the n-type GaAs layer is exposed is a strip-like negative electrode 38 parallel to the axis of the substrate 33, and electrically connected to the n-type GaAs layer.
- a connected negative electrode 38 is formed.
- a band-like positive electrode 39 parallel to the negative electrode 38 is provided on the surface of the p-type GaAl As layer 36 on the opposite side of the negative electrode 38 across the axis of the substrate 33.
- the positive and negative electrodes 39, 38 are electrodes having a thickness of several / zm. In this way, a continuous body of rod-shaped solar cells 32 can be manufactured.
- the rod-shaped solar battery cell 32 is formed by cutting a continuous body of the rod-shaped solar battery 32 using a cutting device such as a wire saw, for example, every about 8 mm in length.
- a cutting device such as a wire saw, for example, every about 8 mm in length.
- Multiple rod type The photovoltaic cell 32 is bundled with acid-resistant wax, and the cutting surface is exposed with force, and is etched with a chemical to form an acid film, thereby reducing the leakage current on the surface of the pn junction 37 at the end face.
- the entire surface except for the positive and negative electrodes 39, 38 (not shown) is made of anti-reflection such as SiO.
- the rod-shaped solar cell 32 is completed by covering with a stop film (not shown).
- a stop film not shown.
- the spectral sensitivity characteristic of this rod-shaped GaAs solar cell 32 is illustrated by curve B.
- a substrate made of n-type GaAs single crystal with a circular cross section is adopted, and an n-type GaAs layer and a p-type GaAlAs layer doped with Zn are formed on the entire surface of the substrate in the same manner as described above to form a cylindrical shape.
- the band-like portion parallel to the axis of the substrate is removed by cutting to form a flat surface 34, exposing the band-like n-type GaAs layer parallel to the axis, and the flat A band-like negative electrode 38 may be formed on the surface 34! /.
- the rod-receiving submodule 31 when the rod-receiving submodule 31 is manufactured, the four rod-shaped solar cells 32 are aligned in the horizontal direction with the conductive direction directed from the positive electrode 39 to the negative electrode 38 aligned. The solar cells 32 are arranged in parallel and close to each other on a plane. Next, the submodule 31 is manufactured by bringing the positive and negative electrodes 39, 38 of the adjacent solar cells 32 into contact with each other and bonding them with solder or a conductive adhesive.
- the second solar cell module 30 has a structure in which, for example, five submodules 31 are arranged in parallel in a row on a plane with the conductive direction and the axial direction aligned.
- a pair of connecting rods 40a and 40b are arranged on both ends of the connector, and the positive electrode 39 on one end of the submodule 31 is electrically connected to the connecting rod 40a as the positive lead with solder or a conductive adhesive.
- the negative electrode 38 on the other end side of the submodule 31 is electrically connected to the connecting rod 40b as a negative electrode lead with solder or a conductive adhesive.
- a strip-shaped flat surface 54 parallel to the axis of the base material 53 is formed on a P-type Ge single crystal having a circular cross section with a diameter of about 0.9 mm.
- the rod-shaped Ge single crystal is produced, for example, by bringing a small-diameter seed crystal into contact with the germanium melt and pulling it downward by using a nozzle at the bottom of a crucible made of Dullaphite with germanium melt.
- the surface is polished so that it has no irregularities on the surface so that it becomes a cylinder with a certain diameter, and is etched with chemicals.
- rod-type p-type germanium is heated in a gas atmosphere containing antimony to provide an n-type diffusion layer 55 (separate conductive layer) with a surface force depth of 0.5 to 1.0 m.
- n-type diffusion layer 55 separate conductive layer
- a partially cylindrical pn junction 56 is formed.
- Silver containing tin is deposited on the center of the flat surface 54 where the p-type Ge is exposed, and silver containing antimony is deposited on the surface of the diffusion layer 55 made of n-type Ge on the opposite side across the axis.
- the strip-shaped positive electrode 57 is in ohmic contact with the flat surface 54 on which the P-type Ge layer is exposed, and the strip-shaped negative electrode 58 is in ohmic contact with the n-type diffusion layer 55.
- the positive and negative electrodes 57, 58 are electrodes having a thickness of several / zm. In this way, a continuum of rod-shaped solar cells 52 is manufactured.
- a continuous body of the rod-shaped solar cells 52 is cut at a length of about 10 mm using a cutting device such as a wire saw to obtain solar cells 52.
- a plurality of solar cells 52 are bundled with acid-resistant wax, the peripheral surface is masked and the cut surface is etched with chemicals using a known technique to form an acid film, and the leakage current of the pn junction 56 on the cut surface is reduced. Reduce.
- the spectral sensitivity characteristic of this Ge rod solar cell 52 is shown by curve C.
- the Si N film mask was used when forming the pn junction 56.
- a cylindrical pn junction is formed on the entire surface of a p-type Ge rod with a circular cross-section, and then a belt-like portion parallel to the axis of the surface portion of the rod-shaped Ge single crystal is removed by cutting to obtain an axial center.
- a strip-shaped flat surface 54 is formed in parallel with the surface, and a p-type Ge base material is exposed on the flat surface 54, and a strip-shaped positive electrode 57 is provided on the flat surface 54. There may be a strip-shaped negative electrode 58 connected to the layer.
- the eight rod-shaped solar cells 52 are aligned in the horizontal direction with the conductive direction directed from the positive electrode 57 to the negative electrode 58 aligned.
- the solar cells 52 are arranged in parallel and close to each other on a plane.
- the submodule 51 is manufactured by bringing the positive and negative electrodes 57 and 58 of the adjacent solar cells 52 into contact with each other and bonding them with solder or a conductive adhesive.
- the submodules 11, 3 1, 51 are configured so that their vertical and horizontal dimensions, that is, the light receiving areas are equal or substantially equal.
- the third solar cell module 50 has, for example, a structure in which five submodules 51 are arranged in parallel in a line on a plane with the conductive direction and the axial direction aligned.
- a pair of connecting rods 60a and 60b are arranged on both ends of the sub-module 51, and the positive electrode 57 on one end of the submodule 51 is electrically connected to the connecting rod 60a as a positive lead with solder or conductive adhesive.
- the negative electrode 58 on the other end side of the submodule 51 is electrically connected to the connecting rod 60b as a negative electrode lead with solder or a conductive adhesive.
- this stack type solar cell device 1 has, for example, three sets of solar cell units 4, and these three sets of solar cell units 4 include an outer case 2 and six sides. Packaged with a stopper block 6 and a cover glass 5!
- the outer case 2 is manufactured by press-molding a stainless steel thin plate (thickness 0.5 to 1.5 mm) into a rectangular shape in plan view.
- three bowl-shaped recesses 3 are formed in parallel in the width direction, and each recess 3 has a substantially inverted trapezoidal cross section whose width increases toward the upper side, leading to the solar cell unit 4.
- the inner surface of the pair of side walls 2a and bottom wall 2b of the recess 3 is formed as a light reflecting surface, and a section trapezoidal shape that protrudes a predetermined small height upward on the portion excluding both ends of the bottom wall 2b
- the protruding base 2c is formed.
- the surface of the side wall 2a and the bottom wall 2b of the recess 3 is mirror-finished to enhance the light reflection effect, or a metal film such as silver is formed, or magnesium oxide powder adheres. I'm allowed.
- a common horizontal support 2d is formed at the upper end of a pair of side walls 2a of adjacent recesses 3.
- the left and right ends of the outer case 2 have a flat flange 2e and the flange 2e.
- a wall 2f is formed to rise vertically from the end portion by a predetermined height.
- the side plug block 6 is made of a white insulating ceramic material, and is attached to both ends of the recess 3 of the outer case 2. As shown in FIGS. 16 and 17, the side plug block 6 has a plurality of end forces S inserted into the connecting rods 20a, 20b, 40a, 40b, 60a, 60b of the solar cell modules 10, 30, 50, respectively.
- Metal connection pipes 20A, 20B, 40A, 40B, 60A, 60B Force S Pre-installed as shown in the figure, these connection knobs 20A, 20B, 40A, 40B, 60A, 60B are set inside the side plug block 6.
- the length protrudes and protrudes to the outside of the side plug block 6 by a predetermined length.
- the connecting pipe is made of Fe58% —Ni42% alloy or the like, and penetrates the side plug block 6 in an airtight manner.
- connection pipes 20B, 40A into which connection rods 20b, 40a are inserted are provided on the outer surface side of the side plug block 6.
- a connector 61 connected in series and a connector 62 connected in series with the connecting pipes 40B, 60A into which the connecting rods 40b, 60a are inserted are provided.
- the cover glass 5 is made of a transparent glass material, and the cover glass 5 has a three-part cylindrical shape that collects light toward the three recesses 3 respectively.
- the rear end side portions of the connecting rods 60a, 60b of the solar cell module 50 are connected to the connection pipes 6 OA, 60B of the side plug block 6, respectively.
- the side portions are inserted into the connection pipes 20A and 20B of the side plug block 6, and the solar cell modules 10, 30, and 50 are held in a parallel horizontal posture.
- the front end side portions of the connecting rods 20a, 20b, 40a, 40b, 60a, 60b of the solar cell modules 10, 30, 50 are connected to the connecting pipes 20A, 20B, 40A, of the front side plug block 6. 40B , 60A and 60B, and then the side plug block 6 is positioned and bonded to the front end portion of the recess 3.
- the solar cell modules 10, 30, 50 of each solar cell unit 4 are stacked (stepped) in the vertical direction with a predetermined small space in the recess 3 of the outer case 2.
- connection knobs 20 ⁇ , 20 ⁇ , 40 ⁇ , 40 ⁇ , 60 ⁇ , 60 ⁇ these connecting pipes 20 ⁇ , 20 ⁇ , 40 ⁇ , 40 ⁇ , 60 ⁇ , 60 ⁇ and connecting rods 20a, 20b, 40a, 40b , 60a, 60b are electrically connected. However, it may be electrically connected by bonding with a conductive adhesive.
- the connection knobs 20A, 20B, 40A, 40B, 60A, 60B are used as outer terminals.
- a transparent synthetic resin for example, silicone rubber
- the cover glass 5 is covered with the upper cover, the support portion 2d is engaged with the engagement groove 5d and bonded, and the flat plate portion 5b is attached. Adhere to flange 2e. A gap between the cover glass 5 and the outer case 2 and the synthetic resin sealing material 63 is sealed with a transparent silicone resin 64.
- the flat plate portion 5b of the cover glass 5 and the flange portion 2e of the outer case 2 are fastened with four bolts 65 and nuts 66 at the left and right ends, respectively.
- the bolt fastening portion is fastened through a butyl rubber packing 67 and a washer 68.
- FIG. 19 is a diagram showing an equivalent circuit of the stack type solar cell unit 4, and the solar cells 11, 32, 52 are illustrated by diodes 11A, 32A, 52A.
- the solar cell modules 10 and 30 are connected in series by the connector 61 that electrically connects the connecting pipes 20B and 40A on both the front and rear sides! RU
- the solar cell modules 30 and 50 are connected in series by connectors 62 that electrically connect the connection pipes 40B and 60A on both the front and rear sides.
- the solar cell unit 4 on both the left and right sides in FIGS. 13 and 14 is connected to the central pair of solar cell units 4 via connection pipes 20A, 20B, 40A, 40B, 60A, 60A and lead wires. Connected in parallel.
- Contact A positive terminal 80 is formed at the center of the lead wire connected to the connecting pipe 20A, and a negative terminal 81 is formed at the center of the lead wire connected to the connection pipe 60B.
- the sensitivity wavelength band and the energy density that can be photoelectrically converted differ depending on the type of solar cells 11, 32, and 52.
- the energy density of solar light on the ground is lOOmWZcm 2
- the open-circuit voltage of the solar cell alone due to this solar light is about 1.2 volts for GaAsP / GaP solar cell 11 (submodule), GaAs solar cell 32 About 0.9 volts for Ge solar cell 52 and about 0.4 volts.
- the output current can be increased / decreased by increasing / decreasing the number of submodules 11 (number of parallel connections), and the output current can be increased / decreased by increasing / decreasing the light receiving area of the submodule 11. It can be increased or decreased.
- the output current can be increased or decreased by increasing or decreasing the number of submodules 31, 51 (number of parallel connections).
- the output voltage of submodules 31 and 51 can be increased or decreased by increasing or decreasing the number (number of series connections).
- FIG. 18 is a diagram for explaining the light condensing action by taking a pair of solar cell units 4 in the center as an example.
- Direct sunlight is dripping against the cover glass 5 When incident directly, the light is refracted and collected by the lens unit 5a. Most direct light is incident on the surface of the uppermost GaAsP / GaP solar cell 11 (submodule 11), and light in the sensitivity wavelength band of curve A in Fig. 20 is absorbed. Is incident on the surface of the submodule 31 composed of the GaAs solar cells 32 below.
- This submodule 31 absorbs light in the sensitivity wavelength band of curve B in FIG. 20, and light having a wavelength longer than that is incident on the surface of the submodule 51 composed of the Ge solar cell 52 below it.
- Light in the sensitivity wavelength band of curve C in FIG. 20 is absorbed, and light having a wavelength longer than that is incident on the surface of the protrusion 2c below it, and reflection and absorption occur.
- the light absorbed in each solar cell 11, 32, 52 is photoelectrically converted into electrical energy, and an electrical output is obtained from the external terminals 80, 81 of each solar cell module 10, 30, 50.
- the light transmitted through the lens unit 5a is not directly incident on the surface of the GaAsP / GaP solar cell 11 (submodule 11), but is incident on the inclined side wall 2a. Incident on the surface. In addition to being absorbed by the surface, light that is reflected and directed in other directions is also generated. This light is subjected to multiple reflections between the outer case 2, the side plug block 6, the cover glass 5, and each of the submodules 11, 31, 51, and then the light reaching the surface of the submodules 11, 31, 51 is absorbed and photoelectrically Converted.
- the side wall 2a of the recess 3 is planarly drawn for the purpose of drawing.
- the curved surface shape is such that most of the force-reflected light is effectively focused on the solar cells 11, 31, 51. It may be designed as follows. Further, the GaAs submodule 31 and the Ge submodule 51 have a function of condensing the light having a wavelength transmitted therethrough (the light having a wavelength that cannot be absorbed) like the lens unit 5a, so that the collected light is ahead. It is possible to devise an optical standpoint to arrange the solar cells so that they are incident on the solar cell submodule.
- the outer case 2 has a bowl shape to increase the surface area so that the heat generated from the solar cells 11, 32, 52 can be easily dissipated to the outside.
- a cover member (not shown) is provided on the outer surface of the outer case 2 to form a duct, and a cooling medium is circulated between the outer case 2 and the cover member to enhance the cooling effect. You can also.
- the output current of the solar cells constituting the stack type solar cell device 1 also varies.
- each of the solar cell modules 10, 30, and 50 has an independent external terminal (connection pipe), a plurality of electronic switch devices that change the number of parallel connections and the number of series connections are provided, and these electronic switch devices are turned on and off. By controlling the output, it is possible to automatically maximize the output according to the spectrum fluctuation.
- the solar cell modules 10, 30, 51 are provided with connection pipes as external terminals, the output characteristics of each solar cell module are individually measured with respect to sunlight in which the situation changes, Performance can be evaluated. Based on the measurement data, the optimal design is made with respect to the reflection of the lens portion 5a of each solar cell module of solar cell device 1 and the inner surface of exterior case 2, the number of solar cells, the number of parallel connections, and the number of series connections. Is possible.
- a plurality of rod-shaped solar cells 32 are arranged in parallel, and the rod light-receiving submodule 31 is connected in series via the positive and negative electrodes 39 and 38, so that By changing the diameter of the material 33, the number of the plurality of rod-shaped solar cells 32 can be changed, and the voltage generated in the submodule 31 can be changed.
- submodule 51 In the solar cell module 30, a plurality of submodules 31 are connected in parallel! / In order to change the current generated in the solar cell module 30 by changing the number of submodules 31 connected in parallel. Can do. The same applies to the solar cell module 50.
- the length in the axial center direction is several times to ten times the diameter of the base material 33. Since it can be set to several times the size, the light-receiving area can be significantly increased compared to granular solar cells, and multiple rod-shaped solar cells 32 are arranged closely in parallel and receive the rod.
- the sub-module 31 can be configured, and the ratio of the light receiving area to the projected area of sunlight can be increased, and the light receiving efficiency for receiving sunlight can be increased. The same applies to the rod-shaped solar battery cell 52.
- the number of connection points for electrically connecting the solar cells is markedly greater than that of the submodule incorporating a plurality of granular solar cells. Therefore, the assembly cost of the submodule including the connection cost can be greatly reduced.
- This solar cell device 1 is a plurality of types of solar cell modules 10, 30, and 50 having different sensitivity wavelength bands, and the solar cell module having a shorter center wavelength in the sensitivity wavelength band is positioned closer to the solar light incident side. Since the solar cell modules are laminated in such a manner, sunlight in a wide wavelength range in the sunlight spectrum can be photoelectrically converted. Since light with shorter wavelength has lower transmission, multiple types of solar cell modules 10, 30, and 50 are stacked so that the solar cell module with the shorter center wavelength in the sensitivity wavelength band is located on the sunlight incident side as described above. By doing so, the photoelectric conversion efficiency of each solar cell module can be increased.
- this solar cell device in order to connect a plurality of types of solar cell modules 10, 30, and 50 stacked in the vertical direction in series and make their output currents substantially the same, The power generation capability of these solar cell modules can be maximized.
- the base material of the rod-shaped solar cells 32, 52 is pulled up using a semiconductor melt crystal seed crystal. By pulling or pulling down, it is possible to easily grow a thin cylindrical single crystal, which is easier and less expensive than the production of a semiconductor single crystal for a planar or spherical solar cell substrate. Can be produced.
- the rod-shaped solar cells 32 and 52 are provided with a partially cylindrical pn junction and a pair of strip-shaped electrodes that are parallel to the axial direction and connected to the center of the surface of the P-type region and the n-type region, respectively. It is a thing. There is almost no directivity of sunlight on the surface perpendicular to the axis of the substrate, and not only direct light but also light reflected or scattered can be used.
- the long strip-shaped electrodes 38, 39, 57, and 58 are formed, so that the number of connection points with external leads can be reduced. Further, the electrodes of the solar cells 32 and 52 can be directly joined with a conductive synthetic resin without mechanical stress. In the submodules 31, 51, the number of solar cells 32, 52 connected in series can be freely set, so that high voltage output can be easily realized.
- the electrode occupies a smaller proportion of the light-receiving surface than the planar light-receiving solar cell 11, and the current with less shadow loss flows perpendicular to the thickness direction of the electrode. Therefore, there is little resistance.
- rod-shaped solar cells are arranged closely in parallel and cells are directly connected to form a module, and the light receiving area can be freely expanded. Since the submodule can increase the ratio of the light receiving surface area to the projected area, a submodule with a compact size can be produced.
- the submodules 11, 31, 5 1 having different sensitivity wavelength bands are arranged at regular intervals through a transparent synthetic resin, and each solar cell absorbs light. The generated heat is dispersed in position. For this reason, the temperature rise is not partially concentrated, and the temperature rise of the solar battery cells 11, 32, 52 is small.
- the outer case 2 has a light reflecting surface on the inner surface and a heat radiating surface on the outer surface, and serves to improve the reciprocal relationship of both the light condensing and the temperature rise suppression.
- the side plug block 6 is made of white ceramic that can reflect or scatter light, and confines the light inside the recess 3. As a result, light is incident on the rod-shaped solar cells 32 and 52 indirectly and the light utilization efficiency is increased.
- connection pipes 20A, 20B, 40A, 40B, 60A, 60B external terminals
- solar cell modules 10, 30, 50 are connected in series. Connected and connected in parallel, a power supply with the required output voltage and current can be configured.
- the center of the lens portion 5a of the cover glass 5 and the center of the recess 3 can be easily aligned by the engagement of the engagement groove 5d of the cover glass 5 and the support portion 2d of the outer case 2. Since the protruding base 2c is formed on the bottom wall 2b of the recess 3 of the outer case 2, the rigidity of the outer case 2 can be increased and the heat release area can be increased. Further, the side plug block 6 and the lens portion 5 a of the rubber glass 5 also increase the mechanical strength of the entire solar cell device 1.
- Submodules 11, 31, and 51 are buried in flexible transparent silicone resin, and the outer case 2 and the cover glass 5 are fastened with the bolts 65 and nuts 66 through the packing 67 and sealed. Therefore, the mechanical strength, confidentiality to the atmosphere, and weather resistance to sunlight are ensured.
- the bolts 65 and nuts 66 are unfastened, disassembled into the cover glass 5 and the outer case 2, and an organic solvent or high-temperature steam is added.
- the submodules 11, 31, 51 can also be easily separated and recovered from the sealing material 63 which also becomes a transparent silicone resin.
- the number of solar cells 32 incorporated in the submodule 31 is not limited to four, and five or more cells 32 may be incorporated. The same applies to the submodule 51, and nine or more solar cells 52 may be incorporated in the submodule 51.
- a planar light receiving solar cell based on crystals of GaP, InGaP, SiC, GaN, InGaN, ZnO may be adopted. It is possible to adopt a rod-receiving sub-module that has a solar cell power composed of any semiconductor crystal.
- a solar battery cell based on crystals of GaSb, InGaAs, and InGaAsSb may be employed.
- a planar light-receiving solar cell based on a crystal of GaAlAs, Si, or InP, or a semiconductor crystal of any of them is used. You may employ
- cover glass 5 instead of the cover glass 5, a cover member made of a synthetic resin material such as transparent polycarbonate or acrylic is adopted, and a lens portion similar to the lens portion 5a is formed on the cover member.
- the rod-shaped flat surfaces 34 and 54 are formed on the substrate, and one electrode 38 and 57 is provided on the flat surface.
- the above flat surface may be omitted, and one band-like electrode 75A in an ohmic contact with the base material 71A may be formed on the surface of the base material 71A having a circular cross section.
- This stack type solar cell device can be used for various power generation devices that generate power using sunlight.
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Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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KR1020097010535A KR101069061B1 (ko) | 2006-11-17 | 2006-11-17 | 스택형 태양전지장치 |
PCT/JP2006/323017 WO2008059593A1 (fr) | 2006-11-17 | 2006-11-17 | Dispositif de cellule solaire superposée |
AU2006350830A AU2006350830B2 (en) | 2006-11-17 | 2006-11-17 | Stacked solar cell device |
CN2006800563715A CN101553935B (zh) | 2006-11-17 | 2006-11-17 | 垒层型太阳电池装置 |
US12/311,988 US8716590B2 (en) | 2006-11-17 | 2006-11-17 | Stacked solar cell device |
CA2672158A CA2672158C (en) | 2006-11-17 | 2006-11-17 | Stacked solar cell device |
JP2008544055A JP5032496B2 (ja) | 2006-11-17 | 2006-11-17 | スタック型太陽電池装置 |
EP06832895A EP2083450A1 (en) | 2006-11-17 | 2006-11-17 | Stacked solar cell device |
TW095146407A TWI331402B (en) | 2006-11-17 | 2006-12-12 | Stack type solar cell |
HK09112284.1A HK1132376A1 (en) | 2006-11-17 | 2009-12-30 | Stacked solar cell device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2006/323017 WO2008059593A1 (fr) | 2006-11-17 | 2006-11-17 | Dispositif de cellule solaire superposée |
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WO2008059593A1 true WO2008059593A1 (fr) | 2008-05-22 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/323017 WO2008059593A1 (fr) | 2006-11-17 | 2006-11-17 | Dispositif de cellule solaire superposée |
Country Status (10)
Country | Link |
---|---|
US (1) | US8716590B2 (ja) |
EP (1) | EP2083450A1 (ja) |
JP (1) | JP5032496B2 (ja) |
KR (1) | KR101069061B1 (ja) |
CN (1) | CN101553935B (ja) |
AU (1) | AU2006350830B2 (ja) |
CA (1) | CA2672158C (ja) |
HK (1) | HK1132376A1 (ja) |
TW (1) | TWI331402B (ja) |
WO (1) | WO2008059593A1 (ja) |
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- 2006-11-17 AU AU2006350830A patent/AU2006350830B2/en not_active Ceased
- 2006-11-17 KR KR1020097010535A patent/KR101069061B1/ko not_active IP Right Cessation
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2011004329A1 (fr) * | 2009-07-08 | 2011-01-13 | Total S.A. | Procédé de fabrication de cellules photovoltaiques multi-jonctions et multi-électrodes |
FR2947955A1 (fr) * | 2009-07-08 | 2011-01-14 | Total Sa | Procede de fabrication de cellules photovoltaiques multi-jonctions et multi-electrodes |
CN102576770A (zh) * | 2009-07-08 | 2012-07-11 | 道达尔股份有限公司 | 制造具有多结和多电极的光伏电池的方法 |
JP2012533171A (ja) * | 2009-07-08 | 2012-12-20 | トタル ソシエテ アノニム | 多接合及び多電極を有する光起電性電池の製造方法 |
US8859885B2 (en) | 2009-07-08 | 2014-10-14 | Total Marketing Services | Method for manufacturing photovoltaic cells with multiple junctions and multiple electrodes |
JP2015092642A (ja) * | 2009-07-08 | 2015-05-14 | トタル マルケタン セルヴィス | 多接合及び多電極を有する光起電性電池の製造方法 |
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JP2016062931A (ja) * | 2014-09-15 | 2016-04-25 | 国立大学法人長岡技術科学大学 | 集光型太陽電池モジュール及び集光型太陽光発電システム |
WO2022059366A1 (ja) * | 2020-09-17 | 2022-03-24 | 株式会社東芝 | 太陽電池、および太陽電池システム |
Also Published As
Publication number | Publication date |
---|---|
CA2672158C (en) | 2013-06-18 |
AU2006350830A1 (en) | 2008-05-22 |
HK1132376A1 (en) | 2010-02-19 |
CN101553935A (zh) | 2009-10-07 |
US20100018568A1 (en) | 2010-01-28 |
KR20090073242A (ko) | 2009-07-02 |
TWI331402B (en) | 2010-10-01 |
AU2006350830B2 (en) | 2011-10-06 |
KR101069061B1 (ko) | 2011-09-29 |
TW200824136A (en) | 2008-06-01 |
EP2083450A1 (en) | 2009-07-29 |
JPWO2008059593A1 (ja) | 2010-02-25 |
US8716590B2 (en) | 2014-05-06 |
JP5032496B2 (ja) | 2012-09-26 |
CA2672158A1 (en) | 2008-05-22 |
CN101553935B (zh) | 2011-01-19 |
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