WO2015016480A1 - 태양전지용 실리콘 기판 및 이의 제조방법 - Google Patents
태양전지용 실리콘 기판 및 이의 제조방법 Download PDFInfo
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- WO2015016480A1 WO2015016480A1 PCT/KR2014/004920 KR2014004920W WO2015016480A1 WO 2015016480 A1 WO2015016480 A1 WO 2015016480A1 KR 2014004920 W KR2014004920 W KR 2014004920W WO 2015016480 A1 WO2015016480 A1 WO 2015016480A1
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- H—ELECTRICITY
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- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
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- H—ELECTRICITY
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- 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
- H10F77/70—Surface textures, e.g. pyramid structures
- H10F77/703—Surface textures, e.g. pyramid structures of the semiconductor bodies, e.g. textured active layers
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- H—ELECTRICITY
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- H10F10/00—Individual photovoltaic cells, e.g. solar cells
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- H—ELECTRICITY
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- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
- H10F71/121—The active layers comprising only Group IV materials
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- H—ELECTRICITY
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- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/12—Active materials
- H10F77/122—Active materials comprising only Group IV materials
- H10F77/1228—Active materials comprising only Group IV materials porous silicon
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- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/20—Electrodes
- H10F77/244—Electrodes made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers
- H10F77/251—Electrodes made of transparent conductive layers, e.g. transparent conductive oxide [TCO] layers comprising zinc oxide [ZnO]
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- H10F77/30—Coatings
- H10F77/306—Coatings for devices having potential barriers
- H10F77/311—Coatings for devices having potential barriers for photovoltaic cells
- H10F77/315—Coatings for devices having potential barriers for photovoltaic cells the coatings being antireflective or having enhancing optical properties
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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
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- 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
- Y02E10/547—Monocrystalline silicon PV cells
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a silicon substrate for a solar cell and a method of manufacturing the same, which lowers the reflectivity of solar light through AZO gap filling, maximizes the efficiency by lowering the specific resistance, which is an electrical property through electron beam irradiation, and improves the electrical characteristics of the AZO applied to the silicon solar cell. It relates to a solar cell silicon substrate and a method for manufacturing the same that can be improved.
- solar cells are one of the most expected energy generation systems, which generate electricity using solar light, an infinite clean energy source, and solar cells that directly convert light into electricity are at the core.
- solar cells are the only power source with a reduced power generation cost, do not need to construct a power plant, cost nothing other than maintenance costs, and is a safe energy and environmentally friendly energy unlike nuclear energy.
- Silicon thin film solar cells are the first to be developed and introduced into amorphous silicon (amorphous, a-Si: H) solar cells, and microcrystalline silicon ( ⁇ c-Si: H) solar cells to improve light absorption efficiency. Batteries and the like.
- a substrate for a solar cell can be made so that one semiconductor single crystal has a very thin layer as one p-type semiconductor and the other n-type semiconductor.
- This is a form in which a p-n junction is formed in a region where a semiconductor of an anode and a cathode meet, that is, a region where a p-type semiconductor and an n-type semiconductor meet, and a current flows by applying a constant voltage to a p-type portion and a negative voltage to the n-type portion.
- the peculiar property such as the rectification phenomenon of the p-n junction, which is the interface, is used in many semiconductor devices such as diodes and transistors.
- TCO transparent conducting oxide
- ITO' Indium Tin Oxide
- Thin films have been mainly used.
- indium a raw material, is very expensive and has a limited reserve, a ZnO-based thin film is used to replace the ITO transparent conductive thin film, which has a low raw material price, high permeability in the infrared and visible region, and excellent electrical conductivity and resistance to plasma. It was.
- the ZnO-based thin film has a disadvantage in that electrical properties change due to the influence of oxygen when exposed to the air for a long time, and it is not stable in a high temperature atmosphere.
- high optical transmittance in the visible region Use of ZnO doped aluminum oxide (AlO) ZnO (hereinafter referred to as AZO) thin films, which are known to have relatively low electrical resistivity and strong chemical stability to hydrogen plasma. It became.
- the visible light transmittance and electrical resistance of a transparent electrode material such as AZO depends on the film forming conditions such as deposition equipment and substrate temperature.
- a method for manufacturing a transparent electrode based on AZO chemical vapor deposition, DC and RF sputtering, and activated reactive evaporation (ARE) are used, and electrical conductivity with excellent RF sputtering technology is used.
- ARE activated reactive evaporation
- Silicon has an advantage of being easily obtained than cadmium or telluride, which is a material of a high efficiency thin film solar cell, but the refractive index is relatively large, and 20-30% of incident light does not generate charges and has a problem of reflecting back.
- a method of reducing the reflection of light an antireflection layer or a texturing method is known, but a method of more efficiently reducing the reflection of light on the surface of a solar cell is continuously required.
- the present invention has been invented to solve the problems of the prior art as described above is an object of the present invention to provide a silicon substrate manufacturing method for a solar cell to reduce the reflectivity by the AZO deposition on the silicon substrate of the micro structure and the gap filling.
- an object of the present invention is to provide a method for manufacturing a silicon substrate for a solar cell that improves electrical characteristics by depositing AZO through a sputter on a microstructured silicon solar cell and irradiating an electron beam.
- the silicon substrate for solar cell is characterized by depositing AZO on the silicon substrate of the microwire structure, gap filling the AZO between the microwires, and irradiating an electron beam.
- the silicon substrate provides a silicon substrate for a solar cell, characterized in that a p-n junction is formed by doping n-type impurities to the p-type silicon substrate.
- the present invention also provides a silicon substrate for a solar cell, wherein an aluminum back-surfacefield (Al-BSF) is formed by doping aluminum to the p layer of the silicon substrate.
- Al-BSF aluminum back-surfacefield
- the height of the microwire of the silicon substrate is 0.5 to 1.0 ⁇ m, the width is 1.5 to 6 ⁇ m provide a silicon substrate for solar cells, characterized in that the interval between the microwire is 2 ⁇ 6 ⁇ m.
- the AZO provides a silicon substrate for a solar cell, characterized in that formed by being deposited to a thickness of 0.2 to 1.0 ⁇ m.
- the electron beam intensity of 1 to 4keV time to provide a silicon substrate for a solar cell, characterized in that irradiated with 50 to 450 seconds.
- the present invention provides a method of manufacturing a silicon substrate for a solar cell, a microstructured silicon substrate manufacturing step of manufacturing a silicon substrate with a microwire protruding at a predetermined interval on a flat base upper surface; A gap filling step of depositing AZO on the microstructured silicon substrate to gap fill the microwires; And an electron beam irradiation step of irradiating an electron beam to the silicon substrate gap-filled between the microwires.
- the microwire of the microstructured silicon substrate provides a method for manufacturing a silicon substrate for a solar cell, characterized in that it is manufactured using the etching method.
- the microstructured silicon substrate provides a silicon substrate manufacturing method for a solar cell, characterized in that the p-type silicon substrate and the n-type silicon substrate is manufactured by making a p-n junction.
- the present invention provides a method for manufacturing a silicon substrate for a solar cell, characterized in that the aluminum layer is doped with a p layer of the microstructured silicon substrate to form an aluminum back-surface field (Al-BSF).
- Al-BSF aluminum back-surface field
- the height of the microwire of the microstructured silicon substrate is 0.5 to 1.0 ⁇ m, the width is 1.5 to 6 ⁇ m, the silicon substrate manufacturing method for a solar cell, characterized in that the spacing between the microwire is 2 ⁇ 6 ⁇ m.
- a DC sputtering method As a method of depositing AZO on the microstructured silicon substrate in the gap filling step, a DC sputtering method, an RF sputtering method, a chemical vapor deposition method, a pulsed laser deposit method, an activated reactive evaporation method ( It provides a solar cell silicon substrate manufacturing method characterized in that the manufacturing using any one selected from ARE (Activated Reactive Evaporation).
- ARE Active Reactive Evaporation
- the AZO deposited in the gap filling step provides a silicon substrate manufacturing method for a solar cell, characterized in that the deposition is manufactured to a thickness of 0.2 to 1.0 ⁇ m.
- the intensity of the electron beam is 1 to 4keV, time to provide a silicon substrate manufacturing method for a solar cell, characterized in that irradiated with 50 to 450 seconds.
- the silicon substrate for a solar cell according to the present invention has an effect of gap filling the microwires of the silicon substrate with AZO to lower the reflectance of sunlight.
- FIG. 1 is a cross-sectional view showing an embodiment of a silicon substrate for a solar cell of the present invention.
- FIG. 2 is a process chart showing a method of manufacturing a silicon substrate for a solar cell according to the present invention.
- 3 to 5 are SEM images showing AZO deposition and 2KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- 6 to 8 are SEM images showing AZO deposition and 3KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- 9 to 11 are graphs showing the Hall effect measurement results with time of irradiation of 2KeV electron beams of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- 12 to 14 are graphs showing the Hall effect measurement results according to the irradiation time of the 3KeV electron beam of the silicon substrates having a microwire structure of 0.7 ⁇ m in height, 2 ⁇ m in width, and 6 ⁇ m in space between the micro wires.
- 15 to 17 are graphs showing reflectances of 2KeV electron beams of a silicon substrate having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of the microwires.
- 18-20 is a graph which shows the reflectance of the board
- FIG. 1 is a cross-sectional view showing an embodiment of a silicon substrate for a solar cell of the present invention
- Figure 2 is a process diagram showing a method for manufacturing a silicon substrate for a solar cell according to the present invention
- Figures 3 to 5 is a microwire height of 0.7 ⁇ m
- SEM pictures showing AZO deposition of silicon substrates having a microwire structure with a width of 2 to 6 ⁇ m and a space of 6 ⁇ m and an electron beam of 2 KeV
- FIGS. 9 to 11 are 0.7 ⁇ m in height and 2 to 6 in width of the micro wire.
- microwire spacing 6 ⁇ m 12 to 14 are graphs showing the Hall effect measurement results according to the irradiation time of 3KeV electron beams of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- FIGS. 15 to 17 are graphs showing the reflectance of irradiation with a 2KeV electron beam of a silicon substrate having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of the microwire, and FIGS. 18 to 20 It is a graph which shows the reflectance of the board
- the silicon substrate for solar cell is characterized by depositing AZO on the silicon substrate of the microwire structure, gap filling the AZO between the microwires, and irradiating an electron beam. It is about.
- the silicon substrate 100 is formed by forming a pn junction by doping an n-type impurity 130 to a p-type silicon substrate 120, and the silicon substrate 100 protrudes and forms a microwire.
- the area in which the bond is formed can be widened, which can be made larger by increasing the density and aspect ratio of the wire.
- an aluminum back surface (Al-BSF; aluminum back-surfacefield) 110 is formed by doping aluminum on the back surface of the p-type silicon substrate 120 that is not doped with the n-type impurity 130 of the silicon substrate 100.
- Al-BSF aluminum back-surfacefield
- Formation of the aluminum backside field 110 is a method of improving efficiency of silicon solar cells, and a potential difference is generated by high concentration doping on the back surface of a p-type silicon substrate of a silicon substrate used in the solar cell, and a minority carrier moves to the rear surface. This will slow down the rear recombination rate. Therefore, the open voltage may increase and the curve factor may increase.
- the height (h of FIG. 1), the width (w) of FIG. 1, and the spacing between microwires (s of FIG. 1) of the microwire of the silicon substrate 100 are not limited in a micro unit, but are not limited to the microwire. It is preferable that the height h is 0.5 to 1.0 mu m, the width is 1.5 to 6 mu m, and the spacing between the microwires is 2 to 6 mu m.
- the AZO 200 which is deposited for gap filling on the silicon substrate 100, is a transparent conducting oxide (TCO), and is formed of a silicon substrate for a solar cell in which AZO is deposited on a silicon substrate having no microwires.
- TCO transparent conducting oxide
- the AZO 200 may be formed by depositing a thickness of 0.2 to 1.0 ⁇ m.
- the specific resistance can be lowered by irradiating an electron beam onto the silicon substrate on which the AZO 200 is deposited, because the crystal grain size of the AZO 200 of the silicon substrate is increased by irradiating the electron beam.
- the silicon substrate for a solar cell of the present invention includes a microstructured silicon substrate manufacturing step of manufacturing a silicon substrate with a microwire protruding at a predetermined interval on the flat base surface as shown in Figure 2; A gap filling step of depositing AZO on the microstructured silicon substrate to gap fill the microwires; And an electron beam irradiation step of irradiating an electron beam to the silicon substrate gap-filled between the microwires.
- the microstructured silicon substrate 100 may be manufactured by forming a micro wire using an etching method as shown in FIG. 3, and the etching method may include an electrochemical etching method, a solution etching method, and a metal catalyst etching method. It may be made of any one selected from the group.
- the microstructured silicon substrate 100 may be manufactured by forming an aluminum backside electric field 110 on the back surface of the p-type silicon substrate 120 which is formed of a pn junction and is not doped with the n-type impurity 130.
- the height (h), width (w) of the microwires of the silicon substrate 100, the distance (s) between the microwires are not limited in a micro unit, but the height (h) of the microwires is 0.5 to 1.0 It will be preferred that the thickness is 1.5-6 ⁇ m, and the spacing between the microwires is 2-6 ⁇ m.
- the DC sputtering method, the RF sputtering method, the chemical vapor deposition method, the pulsed laser deposit method, the activated reactive evaporation method It may be prepared using any one selected from (ARE; Active Reactive Evaporation), and it may be preferable to use a DC sputtering method or an RF sputtering method.
- the AZO deposited for gap filling on the silicon substrate 100 may be formed by depositing to a thickness of 0.2 to 1.0 ⁇ m.
- the electron beam irradiation in the electron beam irradiation step is to reduce the specific resistance by increasing the grain size of the AZO (200) of the silicon substrate as described above, the intensity of the electron beam can be irradiated with 1 to 4keV, time 50 to 450 seconds. It would be desirable to irradiate with an intensity of 2keV.
- the height (h) of the microwires is about 0.7, the spacing (s) between the microwires is formed to be 6 mu m, and the widths (w) of the micro wires are 2, 4, and 6 mu m by etching on the p-type silicon substrate.
- a silicon substrate was formed by forming a pn junction by doping n-type impurities, and aluminum was doped on the back surface of the p-type silicon substrate which was not doped with n-type impurities.
- AZO was deposited on the silicon substrate on which the microwires were formed by using a sputter.
- Figures 3 to 5 (a) is a substrate before the deposition of AZO in the silicon substrate fabrication of the solar cell of the microwire structure, (b) is a substrate without depositing AZO and irradiated with an electron beam, (c) is an electron beam (D) is a board
- FIG. 3 is an SEM image showing AZO deposition and 2KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 ⁇ m, and a thickness of 6 ⁇ m of a micro wire.
- FIG. 4 is a SEM photograph showing AZO deposition and 2KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 4 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- FIG. 5 is an SEM image showing AZO deposition and 2KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 6 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- 3 to 5 (a) is a transition substrate for depositing AZO in the manufacture of a silicon substrate for a solar cell of the microwire structure, (b) is a substrate without depositing AZO and irradiated with an electron beam, (c) is an electron beam Is a substrate irradiated with an electron beam for 60 seconds, (d) is a substrate irradiated with an electron beam for 180 seconds, (e) is a substrate irradiated with an electron beam for 300 seconds, and (f) is a substrate irradiated with an electron beam for 420 seconds.
- FIG. 6 is a SEM photograph showing AZO deposition and 3KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 ⁇ m, and a thickness of 6 ⁇ m of a micro wire.
- FIG. 7 is a SEM photograph showing AZO deposition and 3KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 4 ⁇ m, and a thickness of 6 ⁇ m of a micro wire.
- FIG. 8 is an SEM image showing AZO deposition and 3KeV electron beam irradiation of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 6 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- the Hall effect is a phenomenon in which electromotive force is generated in a direction perpendicular to the current and the magnetic field when a current is applied to the magnetic field in a direction perpendicular to each other, and shows carrier density, mobility and resistance according to the electron beam irradiation time.
- 9 to 11 are graphs showing Hall effect measurement results according to the time of irradiation of 2KeV electron beams of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of a micro wire.
- 9 is a width 2 ⁇ m
- FIG. 10 is a width 4 ⁇ m
- FIG. 11 is a graph showing the Hall effect measurement results having a width of 6 ⁇ m.
- 12 to 14 are graphs showing a Hall effect measurement result according to a time of irradiation of an electron beam of 3 KeV of silicon substrates having a microwire structure having a height of 0.7 ⁇ m, a width of 2 ⁇ m, and a thickness of 6 ⁇ m of the micro wires.
- 13 is a graph showing a Hall effect measurement result having a width of 2 m, a width of 4 m, and a width of 6 m.
- the spectrophotometer measures the wavelength at which light is absorbed to the maximum for each molecule.
- the reflectance value is expressed in%, and the average value is the average value of the reflectance values of 300 to 1800 nm, which is the total value of the wavelength.
- 15 to 17 are graphs showing reflectances of a 2KeV electron beam of a silicon substrate having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of a micro wire; 10 is a graph showing the reflectivity of 4 ⁇ m in width and 6 ⁇ m in width.
- 18 to 20 are graphs showing the reflectivity of a substrate irradiated with a 3KeV electron beam of a silicon substrate having a microwire structure having a height of 0.7 ⁇ m, a width of 2 to 6 ⁇ m, and a thickness of 6 ⁇ m of the microwire; 13 is a graph showing reflectivity of 4 ⁇ m in width and 6 ⁇ m in width.
- the substrate irradiated with the electron beam of the present invention can be seen that the reflectivity of the sunlight is very low compared to the substrate without the AZO deposition.
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Claims (13)
- 마이크로 와이어 구조의 태양전지용 실리콘 기판에 있어서,상기 마이크로 와이어 구조의 실리콘 기판상에 AZO를 증착하여 상기 마이크로 와이어 사이를 상기 AZO로 갭 충전하고 전자빔을 조사하는 것을 특징으로 하는 태양전지용 실리콘 기판.
- 제1항에 있어서,상기 실리콘 기판은 p형 실리콘 기판에 n형 불순물을 도핑하여 p-n 접합을 이루어 형성된 것을 특징으로 하는 태양전지용 실리콘 기판.
- 제1항 내지 2항에 있어서,상기 실리콘 기판의 p층에 알루미늄을 도핑하여 알루미늄 후면전계(Al-BSF; aluminum back-surfacefield)가 형성된 것을 특징으로 하는 태양전지용 실리콘 기판.
- 제1항에 있어서,상기 실리콘 기판의 마이크로 와이어의 높이가 0.5 내지 1.0㎛이고, 폭이 1.5 내지 6㎛이며, 마이크로 와이어 사이의 간격이 2~6㎛인 것을 특징으로 하는 태양전지용 실리콘 기판.
- 제1항에 있어서,상기 AZO는 0.2 내지 1.0㎛의 두께로 증착되어 형성되는 것을 특징으로 하는 태양전지용 실리콘 기판.
- 태양전지용 실리콘 기판의 제조방법에 있어서,평탄한 베이스 상면에 정해진 간격으로 마이크로 와이어가 돌출 형성되어 있는 실리콘 기판을 제조하는 마이크로구조 실리콘 기판 제조단계;상기 마이크로구조 실리콘 기판에 AZO를 증착하여 상기 마이크로 와이어 사이를 갭 충전하는 갭 충전단계; 및상기 마이크로 와이어 사이를 갭 충전한 실리콘 기판에 전자빔을 조사하는 전자빔 조사단계를 포함하는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 마이크로구조 실리콘 기판의 마이크로 와이어는 식각법을 이용하여 제조되는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 마이크로구조 실리콘 기판은 p형 실리콘 기판과 n형 실리콘 기판이 p-n 접합을 이루어 제조되는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 마이크로구조 실리콘 기판의 p층에 알루미늄을 도핑하여 알루미늄 후면전계(Al-BSF; aluminum back-surfacefield)를 형성하여 제조하는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 마이크로구조 실리콘 기판의 마이크로 와이어의 높이가 0.5 내지 1.0㎛이고, 폭이 1.5 내지 6㎛이며, 마이크로 와이어 사이의 간격이 2~6㎛로 제조하는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 갭 충전단계에서 마이크로구조 실리콘 기판에 AZO를 증착하는 방법으로는 DC 스퍼터링법, RF 스퍼터링법, 화학 기상 증착법(Chemical vapor deposition), 펄스 레이저 증착법(Pulsed Laser Depositon), 활성화 반응성 증발법(ARE;Activated Reactive Evaporation) 중 선택되는 어느 하나를 이용하여 제조하는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 갭 충전단계에서 증착된 AZO는 0.2 내지 1.0㎛의 두께로 증착되어 제조되는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
- 제6항에 있어서,상기 전자빔의 세기는 1 내지 4keV, 시간은 50 내지 450초로 조사되는 것을 특징으로 하는 태양전지용 실리콘 기판 제조방법.
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| JP2016531508A JP6209682B2 (ja) | 2013-07-29 | 2014-06-03 | 太陽電池用シリコン基板製造方法 |
| US14/908,461 US20160163887A1 (en) | 2013-07-29 | 2014-06-03 | Silicon substrate for solar cell and manufacturing method therefor |
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| KR1020130089229A KR20150014058A (ko) | 2013-07-29 | 2013-07-29 | 태양전지용 실리콘 기판 및 이의 제조방법 |
| KR10-2013-0089229 | 2013-07-29 |
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| KR100322710B1 (ko) * | 1995-09-27 | 2002-05-13 | 윤종용 | 함몰전극후면부분확산형태양전지의제조방법 |
| KR20100038520A (ko) * | 2008-10-06 | 2010-04-15 | 주식회사 인포비온 | 전자빔 후처리를 이용한 투명성 산화 전극 제조 방법 |
| WO2010144274A1 (en) * | 2009-06-08 | 2010-12-16 | International Business Machines Corporation | Nano/microwire solar cell fabricated by nano/microsphere lithography |
| KR20120081349A (ko) * | 2011-01-11 | 2012-07-19 | 한국과학기술원 | 도펀트의 주기적 주입을 이용한 유기금속 화학 기상 증착법에 의해 형성된 투명 전도막 및 이의 제조방법 |
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| JPH06140650A (ja) * | 1992-09-14 | 1994-05-20 | Sanyo Electric Co Ltd | 透光性導電酸化膜の改質方法とこれを用いた光起電力装置の製造方法 |
| JPH07278792A (ja) * | 1994-04-04 | 1995-10-24 | Teijin Ltd | 透明導電性膜の製造方法 |
| US7824579B2 (en) * | 2005-06-07 | 2010-11-02 | E. I. Du Pont De Nemours And Company | Aluminum thick film composition(s), electrode(s), semiconductor device(s) and methods of making thereof |
| US20130112256A1 (en) * | 2011-11-03 | 2013-05-09 | Young-June Yu | Vertical pillar structured photovoltaic devices with wavelength-selective mirrors |
| JP2012059953A (ja) * | 2010-09-09 | 2012-03-22 | Fujifilm Corp | 光電変換素子用シリコン基板及び光電変換素子の製造方法。 |
| CN102157577B (zh) * | 2011-01-31 | 2013-01-16 | 常州大学 | 纳米硅/单晶硅异质结径向纳米线太阳电池及制备方法 |
| CN102368506A (zh) * | 2011-09-26 | 2012-03-07 | 浙江大学 | 一种n-氧化锌/p-硅纳米线三维异质结太阳能转换装置 |
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2013
- 2013-07-29 KR KR1020130089229A patent/KR20150014058A/ko not_active Ceased
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- 2014-06-03 US US14/908,461 patent/US20160163887A1/en not_active Abandoned
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|---|---|---|---|---|
| KR100322710B1 (ko) * | 1995-09-27 | 2002-05-13 | 윤종용 | 함몰전극후면부분확산형태양전지의제조방법 |
| KR20100038520A (ko) * | 2008-10-06 | 2010-04-15 | 주식회사 인포비온 | 전자빔 후처리를 이용한 투명성 산화 전극 제조 방법 |
| WO2010144274A1 (en) * | 2009-06-08 | 2010-12-16 | International Business Machines Corporation | Nano/microwire solar cell fabricated by nano/microsphere lithography |
| KR20120081349A (ko) * | 2011-01-11 | 2012-07-19 | 한국과학기술원 | 도펀트의 주기적 주입을 이용한 유기금속 화학 기상 증착법에 의해 형성된 투명 전도막 및 이의 제조방법 |
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| US20160163887A1 (en) | 2016-06-09 |
| JP2016529707A (ja) | 2016-09-23 |
| JP6209682B2 (ja) | 2017-10-04 |
| KR20150014058A (ko) | 2015-02-06 |
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