WO2012018199A2 - 점진적으로 굴절률이 변하는 실리콘 다층 무반사막 및 그 제조방법 및 이를 구비하는 태양전지 및 그 제조방법 - Google Patents
점진적으로 굴절률이 변하는 실리콘 다층 무반사막 및 그 제조방법 및 이를 구비하는 태양전지 및 그 제조방법 Download PDFInfo
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- WO2012018199A2 WO2012018199A2 PCT/KR2011/005626 KR2011005626W WO2012018199A2 WO 2012018199 A2 WO2012018199 A2 WO 2012018199A2 KR 2011005626 W KR2011005626 W KR 2011005626W WO 2012018199 A2 WO2012018199 A2 WO 2012018199A2
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- silicon
- refractive index
- solar cell
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- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 125
- 239000010703 silicon Substances 0.000 title claims abstract description 125
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 230000003667 anti-reflective effect Effects 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
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- 238000000034 method Methods 0.000 claims description 35
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- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 5
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- 238000004544 sputter deposition Methods 0.000 claims description 5
- 229910004613 CdTe Inorganic materials 0.000 claims description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 3
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- 230000003247 decreasing effect Effects 0.000 claims description 3
- 229910021424 microcrystalline silicon Inorganic materials 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 239000010408 film Substances 0.000 abstract description 55
- 239000010409 thin film Substances 0.000 abstract description 6
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/113—Anti-reflection coatings using inorganic layer materials only
- G02B1/115—Multilayers
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- H01L31/0256—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 the material
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- H01L31/028—Inorganic materials including, apart from doping material or other impurities, only elements of Group IV of the Periodic Table
- H01L31/0284—Inorganic materials including, apart from doping material or other impurities, only elements of Group IV of the Periodic Table comprising porous silicon as part of the active layer(s)
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- 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
- H01L31/0256—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 the material
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- H01L31/03685—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 crystalline structure or particular orientation of the crystalline planes including polycrystalline semiconductors including only elements of Group IV of the Periodic Table including microcrystalline silicon, uc-Si
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Definitions
- the present invention relates to an antireflective film used in various optical elements such as an optical filter and an optical semiconductor element such as a semiconductor light emitting device or a solar cell, and a method of manufacturing the same.
- the present invention relates to a silicon multilayer anti-reflective film having a low refractive index and gradually changing its refractive index from the refractive index of the optical device and the optical device material to the refractive index of air, and a method of manufacturing the same and a solar cell having the same.
- the refractive index difference from air in an optical semiconductor device including a semiconductor material having a high refractive index is increased. Due to the reflection of light generated at the interface, it is directly related to the performance of the device, and minimizing the reflection of light is an important problem that must be solved in order to have excellent performance. The development of technology to minimize the reflection of light generated between the optical element and the air is in progress.
- the anti-reflective method used to reduce the reflection of light to improve the efficiency and improve the performance of the device in the optical semiconductor device such as solar cells, photodetectors, light-emitting diodes, etc.
- Surface texturing method And anti-reflective coating method are examples of the optical semiconductor device.
- the surface texturing is a method of reducing the reflection of light generated on the semiconductor surface by making regular or irregular structures or curves using physical or chemical methods on the semiconductor surface.
- Physical methods used for such surface texturing include plasma etching and mechanical scribing. These methods have the advantage of suppressing anisotropic structure formation because there is no imbalance in the etching rate according to the crystal direction of the semiconductor substrate, and it is easy to control the shape and size of the structure, but the process is complicated and the process time is long and mass production Not only is this difficult, but also disadvantages such as the need for expensive vacuum equipment and additional equipment, there is a limitation that it is not suitable for commercial use.
- chemical methods used for the surface texturing include photolithography and wet etching. These methods are not widely used because they are sensitive to the wavelength of the light source, difficult to control the surface shape and the etching rate, and difficult to produce a sufficiently fine structure depending on the crystal direction of the semiconductor substrate, the type of constituent elements, the composition ratio and the doping. have.
- the anti-reflective coating is used to reduce the reflection of light by depositing a material having a lower refractive index than the semiconductor material on the semiconductor to reduce the sudden change in refractive index between the semiconductor material and the air.
- the anti-reflective coating method has the advantage of obtaining the minimum reflectance in a specific wavelength region by adjusting the refractive index and the optical thickness of the coating material.
- a multilayer structure is required.
- the above materials should be used.
- the antireflection film in which the refractive index is continuously changed by mixing and depositing two materials there is a disadvantage that it is very difficult to control the mixing ratio of the materials in the deposition process.
- the refractive index is gradually changed, and a method of changing the refractive index by adjusting the angle of the substrate in a deposition apparatus has been proposed.
- the inclination angle is increased, the porosity of the membrane is increased by the shadow effect and the effective refractive index of the membrane is lowered.
- the materials used in the above method are oxides and fluorides of SiO2, TiO2, Al2O3, MgF2, etc., and it is difficult to change the refractive index over a wide range, and when the inclination is inclined much, the structure of the film becomes dense, and these oxides and fluorides Since it has a low heat transfer coefficient, it has the disadvantage of inhibiting the heat radiation characteristics of the optical semiconductor device.
- an object of the present invention is to coat the antireflective film is gradually adjusted to the refractive index by depositing a semiconductor material inclined, it is structurally dense and relatively high compared to the conventional antireflective film
- the present invention provides an anti-reflective film having excellent heat dissipation efficiency due to a heat transfer coefficient, a manufacturing method thereof, and a solar cell having the same, and a manufacturing method thereof.
- the first aspect of the present invention at least two layers of the silicon layer is sequentially stacked on the substrate, each silicon layer is inclined so that the refractive index is gradually changed by adjusting the inclination angle on the substrate It is to provide a silicon multilayer antireflective film characterized in that it is deposited.
- the substrate is made of a glass substrate or a semiconductor substrate
- the semiconductor substrate is preferably made of any one of Si, GaAs, InP, GaP, GaN.
- each silicon layer has a distribution of refractive indices that gradually increases or decreases.
- the inclination angle may be made of 1 degree to 90 degrees.
- the progressively changing refractive index structure is a step, and the progressively changing refractive index is any one of linear, polynomial, Gaussian, or nonlinear distribution.
- At least two layers of silicon are sequentially stacked on a substrate, wherein each of the silicon layers is deposited on the substrate at an inclined angle, and the refractive index is gradually changed by adjusting the inclination angle. It is to provide a method for producing a silicon multilayer antireflection film.
- the method of depositing obliquely is preferably using sputtering or evaporation.
- each of the silicon layers may be deposited obliquely to have a distribution of refractive index that gradually increases or decreases.
- the inclination angle may be made of 1 degree to 90 degrees.
- the progressively changing refractive index structure is a step, and the progressively changing refractive index is any one of linear, polynomial, Gaussian, or nonlinear distribution.
- the first transparent electrode formed on the substrate A silicon multilayer anti-reflective film formed on the first transparent electrode to be inclined so as to gradually change a refractive index; P-type, i-type, and n-type silicon layers sequentially stacked on the silicon multilayer antireflective film; A second transparent electrode formed on the n-type silicon layer; And it is to provide a solar cell having a silicon multilayer anti-reflective film comprising an n-type electrode formed on the second transparent electrode.
- the substrate is made of a glass substrate or a semiconductor substrate
- the semiconductor substrate is preferably made of any one of Si, GaAs, InP, GaP, GaN.
- the multilayer structure may be composed of two to five layers.
- the silicon multilayer antireflective film has a distribution of refractive indices that gradually increases or decreases.
- the progressively changing refractive index structure is a step, and the progressively changing refractive index is any one of linear, polynomial, Gaussian, or nonlinear distribution.
- a fourth aspect of the invention the step of forming a first transparent electrode on the substrate; Forming a silicon multilayer anti-reflective film on the first transparent electrode to be inclined such that the refractive index is gradually changed; Sequentially depositing p-type, i-type, and n-type silicon layers on the silicon multilayer antireflective film; Forming a second transparent electrode on the n-type silicon layer; And it provides a method for manufacturing a solar cell having a silicon multilayer anti-reflective film comprising the step of forming an n-type electrode on the second transparent electrode.
- the silicon multilayer antireflection film is preferably formed to have a distribution of refractive index that gradually increases or decreases.
- the progressively changing refractive index structure is a step, and the progressively changing refractive index is any one of linear, polynomial, Gaussian, or nonlinear distribution.
- the silicon multilayer antireflective film having a gradually changing refractive index as described above a method for manufacturing the same, and a solar cell including the same, a method of tilting and depositing silicon on a substrate using an evaporation method or a sputtering method
- the refractive index is adjusted, and the refractive index of each silicon layer is gradually increased or decreased, thereby minimizing the reflection of light between the semiconductor surface and the air.
- the silicon multilayer anti-reflective film according to the present invention is made of a single material, it reduces contamination in the chamber, enables a wide range of refractive index changes, and has the advantage of being manufactured by only a few simple depositions.
- silicon is a semiconductor, since it has a higher heat transfer coefficient than a multilayer antireflective structure using an oxide or fluoride, excellent heat dissipation characteristics can be expected.
- the silicon multilayer anti-reflective film according to the present invention when applied to the existing silicon solar cell structure, the advantages of the non-reflective film formed of the same material and excellent heat dissipation characteristics due to the high heat transfer coefficient of the silicon reduces the deterioration phenomenon inside the solar cell There is an advantage to increase the efficiency of the solar cell.
- FIG. 1 is a cross-sectional view and a refractive index distribution diagram for explaining the structure of a silicon multilayer anti-reflective film according to an embodiment of the present invention.
- FIG. 2 is a schematic system diagram of a gradient deposition method according to an embodiment of the present invention.
- FIG. 3 is a view showing an SEM image of a cross section of a low refractive index silicon layer formed on a silicon substrate having different inclination angles according to an embodiment of the present invention.
- Figure 4 is a graph showing the refractive index and reflectance of the low refractive index silicon layer produced by varying the inclination angle according to an embodiment of the present invention.
- 5 to 5 are SEM images of a silicon multilayer antireflective film structure in which a structure in which refractive index is gradually changed is stacked on a silicon substrate according to an embodiment of the present invention.
- FIG. 8 is a graph showing reflectance of a silicon multilayer antireflective film structure in which a structure in which a refractive index is gradually changed is stacked on a silicon substrate according to an exemplary embodiment of the present invention.
- FIGS. 9 and 10 illustrate average reflectance according to the thickness and number of silicon multilayer antireflective films in which a structure in which refractive index is gradually changed is stacked on a silicon substrate according to an exemplary embodiment of the present invention.
- FIG. 11 is a schematic diagram of a silicon solar cell structure in which a silicon multilayer antireflection film is manufactured according to an embodiment of the present invention.
- a method of manufacturing a silicon multilayer antireflective film having a gradually changing refractive index is to deposit silicon on a substrate inclinedly, and to adjust the inclination angle to produce a silicon multilayer antireflective film having a gradually changing refractive index. It is characterized by.
- the solar cell according to an embodiment of the present invention is characterized in that the p-electrode, a pin-type semiconductor layer, an optical thin film layer (that is, a silicon multilayer anti-reflective film layer) and a glass substrate, the optical thin film layer,
- the refractive index distribution is characterized in that formed in a multi-layer structure is gradually reduced.
- the refractive index of the optical thin film layer may be selected in the range of 1 or more and 5 or less.
- the optical thin film layer is formed of a single material selected from the group consisting of crystalline, amorphous or intermediate silicon.
- the optical thin film layer may form a porous structure.
- FIG. 1 is a cross-sectional view and a refractive index distribution diagram for explaining the structure of a silicon multilayer anti-reflective film according to an embodiment of the present invention.
- the silicon multilayer antireflective film according to the present invention gradually changes the refractive index from the high refractive index silicon layer 2 sequentially stacked on the substrate 1 to the low refractive index silicon layer 5. It includes a structure in which the refractive index is reduced.
- the substrate 1 may be made of a glass substrate or a semiconductor substrate, the semiconductor substrate is preferably made of any one of, for example, Si, GaAs, InP, GaP, GaN.
- M of the low refractive index silicon layer 5 means a positive integer, and the refractive index distribution of the antireflection film may be formed stepwise.
- the m may be selected as the number of various layers depending on the structure and the substrate material.
- each silicon layer may be formed by a gradient deposition method, for example, by sputtering or evaporation.
- FIG. 2 is a schematic diagram of a system configuration of the gradient deposition method according to an embodiment of the present invention, a schematic diagram showing the gradient deposition method of the sputtering and evaporation method that can be used in the present invention. This shows the basic system for practicing the present invention.
- FIG. 3 is a SEM image of a cross section of a low refractive index silicon layer deposited on a silicon substrate, manufactured by varying an inclination angle, according to an embodiment of the present invention. Cross section images are shown.
- the inclination degree of the inclination is increased from (a) to (d) of FIG. 3, and as a result, nano-columnization of the low refractive index silicon layer is intensified.
- Figure 4 is a graph showing the refractive index and reflectance of the low refractive index silicon layer produced by varying the inclination angle according to an embodiment of the present invention.
- FIG. 4A shows the refractive index according to the inclination angle of the low refractive index silicon layer of the practical example, in the wavelength range of about 250 nm to about 820 nm. It shows that the refractive index decreases as the tilt is inclined. When the tilt is about 70 degrees, the refractive index of the low refractive index silicon layer on the silicon substrate has a value of about 1.67 at a wavelength of about 633 nm.
- the inclination angle of the silicon layer applied to the present invention is preferably made of about 0 degrees to 90 degrees (preferably 1 degree to 90 degrees).
- FIG. 5 to 7 are SEM images of a silicon multilayer antireflective film structure in which a structure having a gradually changing refractive index is stacked on a silicon substrate according to an embodiment of the present invention. Cross-sectional images of various silicon multilayer antireflective film structures combined are shown.
- FIG. 5 three practical examples were deposited on a silicon substrate to form a refractive index distribution of linear (FIG. 5), fifth order (FIG. 6), and Gaussian (FIG. 7), respectively, cross-sectional images.
- FIG. 7 a bar graph shows the refractive index distribution of each silicon layer.
- the three practical examples fixed the overall thickness to about 100 nm and adjusted the refractive index distribution by adjusting the thickness of each layer.
- FIG. 8 is a graph showing reflectance of a silicon multilayer antireflective film structure in which a structure in which a refractive index is gradually changed is stacked on a silicon substrate according to an exemplary embodiment of the present invention.
- FIGS. 8A and 8B show the results of calculating and reflecting the reflectance of the structure of the practical example, and the reflectance of the silicon substrate. It can be seen that the antireflection characteristics in the wavelength range of about 400 nm to about 800 nm vary depending on the refractive index distribution of the antireflection film. In addition, it can be seen that the theoretical calculation results (FIG. 8 (a)) and the measurement results (FIG. 8 (b)) show a similar tendency.
- the anti-reflective property can be ensured in a wide wavelength range and the angle of incidence, and it is possible to prevent contamination in the chamber by depositing with a single material, and the refractive index variation range is sufficiently wide. Reflective properties can be suppressed even with a wide and thin antireflection film, and an antireflection film can be formed even with a small number of layers, which is advantageous over the conventional antireflection film manufacturing process.
- the silicon material is a semiconductor, and has a higher heat transfer coefficient than the oxides and fluorides used in the past, the silicon material contributes to excellent temperature characteristics when applied to optical devices such as solar cells or light emitting diodes.
- 9 and 10 are graphs showing average reflectance according to the thickness and number of silicon multilayer antireflective films in which a structure having a gradually changing refractive index is laminated on a silicon substrate according to an embodiment of the present invention.
- the average reflectance is about 7.86, the lowest.
- FIG. 11 is a schematic diagram of a silicon solar cell structure in which a silicon multilayer antireflection film is manufactured according to an embodiment of the present invention.
- a silicon solar cell structure having a silicon anti-reflective film inserted according to an embodiment of the present invention is basically provided with a first transparent electrode layer 12 and a p-type sequentially on a glass substrate 13.
- the silicon layer 10, the i-type silicon layer 9, the n-type silicon layer 8, the second transparent electrode layer 7, and the metal layer (or n-type electrode) 6 are formed.
- the silicon multilayer antireflective film layer 11 is stacked between the first transparent electrode layer 12 and the p-type silicon layer 10 so that when the sunlight is incident from the glass substrate 13 direction, the first transparent electrode layer 12 ) And may suppress the reflection by reducing the difference in refractive index between the p-type silicon layer 10.
- the anti-reflective film made of the same material as the silicon solar cell, the reflection at the interface between the materials can be suppressed to a minimum compared to the reflection at the interface between other existing materials.
- the silicon multilayer antireflective film layer 11 applied to the present invention may be selected in a distribution in which the refractive index is gradually increased, and the inclination angle and the number of layers and the thickness of each layer may be selected in various combinations during deposition.
- the silicon multilayer antireflective film layer 11 may be composed of one or more layers and five or less layers (preferably, two to five layers).
- the solar cell layer is formed of a p-type silicon layer 10, an i-type silicon layer 9, and an n-type silicon layer 8, but is not limited thereto.
- it may be made of at least one of amorphous Si, crystalline Si, micro-crystalline Si, multi-crystalline Si, CIGS, CIS, CdTe.
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Abstract
Description
Claims (20)
- 기판 상에 적어도 두 층의 실리콘층이 순차적으로 적층되되,상기 각 실리콘층은 상기 기판 상에 경사각을 조절하여 점진적으로 굴절률이 변화되도록 경사지게 증착되는 것을 특징으로 하는 실리콘 다층 무반사막.
- 제1 항에 있어서,상기 기판은 유리 기판 또는 반도체 기판으로 이루어지며, 상기 반도체 기판은 Si, GaAs, InP, GaP, GaN 중 어느 하나인 것을 특징으로 하는 실리콘 다층 무반사막.
- 제1 항에 있어서,상기 각 실리콘층은 점진적으로 증가 또는 감소하는 굴절률의 분포를 갖는 것을 특징으로 하는 실리콘 다층 무반사막.
- 제1 항에 있어서,상기 경사각은 1도 내지 90도로 이루어진 것을 특징으로 하는 실리콘 다층 무반사막.
- 제1 항에 있어서,상기 점진적으로 굴절률이 변화하는 구조는 계단식으로 이루어지며,상기 점진적으로 굴절률이 변화하는 분포는 선형, 다항형(Polynomial), 가우시안형(Gaussian) 또는 비선형 분포 중 어느 하나인 것을 특징으로 하는 실리콘 다층 무반사막.
- 기판 상에 적어도 두 층의 실리콘층을 순차적으로 적층하되,상기 각 실리콘층은 상기 기판 상에 경사지게 증착하며, 그 경사각을 조절하여 점진적으로 굴절률을 변화시키는 것을 특징으로 하는 실리콘 다층 무반사막의 제조방법.
- 제6 항에 있어서,상기 경사지게 증착하는 방법은 스퍼터링 또는 증발법을 이용하는 것을 특징으로 하는 실리콘 다층 무반사막의 제조방법.
- 제7 항에 있어서,상기 각 실리콘층은 점진적으로 증가 또는 감소하는 굴절률의 분포를 갖도록 경사지게 증착하는 것을 특징으로 하는 실리콘 다층 무반사막의 제조방법.
- 제7 항에 있어서,상기 경사각은 1도 내지 90도인 것을 특징으로 하는 실리콘 다층 무반사막의 제조방법.
- 제7 항에 있어서,상기 점진적으로 굴절률이 변화하는 구조는 계단식으로 이루어지며,상기 점진적으로 굴절률이 변화하는 분포는 선형, 다항형(Polynomial), 가우시안형(Gaussian) 또는 비선형 분포 중 어느 하나인 것을 특징으로 하는 실리콘 다층 무반사막의 제조방법.
- 기판 상에 형성되는 제1 투명전극;상기 제1 투명전극 상에 점진적으로 굴절률이 변화되도록 경사지게 형성되는 실리콘 다층 무반사막;상기 실리콘 다층 무반사막 상에 적층되는 태양전지 층;상기 태양전지 층 상에 형성되는 제2 투명전극; 및상기 제2 투명전극 상에 형성되는 n형 전극을 포함하는 실리콘 다층 무반사막을 구비하는 태양전지.
- 제11 항에 있어서,상기 태양전지 층은 amorphous Si, crystalline Si, micro-crystalline Si, multi-crystalline Si, CIGS, CIS, CdTe 중 적어도 어느 하나로 형성되는 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지.
- 제11 항에 있어서,상기 기판은 유리 기판 또는 반도체 기판으로 이루어지며, 상기 반도체 기판은 Si, GaAs, InP, GaP, GaN 중 어느 하나인 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지.
- 제11 항에 있어서,상기 다층 구조는 2 내지 5층으로 이루어지는 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지.
- 제11 항에 있어서,상기 실리콘 다층 무반사막은 점진적으로 증가 또는 감소하는 굴절률의 분포를 갖는 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지.
- 제11 항에 있어서,상기 점진적으로 굴절률이 변화하는 구조는 계단식으로 이루어지며,상기 점진적으로 굴절률이 변화하는 분포는 선형, 다항형(Polynomial), 가우시안형(Gaussian) 또는 비선형 분포 중 어느 하나인 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지.
- 기판 상에 제1 투명전극을 형성하는 단계;상기 제1 투명전극 상에 점진적으로 굴절률이 변화되도록 경사지게 실리콘 다층 무반사막을 형성하는 단계;상기 실리콘 다층 무반사막 상에 태양전지 층을 적층하는 단계;상기 태양전지 층 상에 제2 투명전극을 형성하는 단계; 및상기 제2 투명전극 상에 n형 전극을 형성하는 단계를 포함하는 실리콘 다층 무반사막을 구비하는 태양전지의 제조방법.
- 제17 항에 있어서,상기 태양전지 층은 amorphous Si, crystalline Si, micro-crystalline Si, multi-crystalline Si, CIGS, CIS, CdTe 중 적어도 어느 하나로 형성하는 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지의 제조방법.
- 제17 항에 있어서,상기 실리콘 다층 무반사막은 점진적으로 증가 또는 감소하는 굴절률의 분포를 갖도록 형성하는 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지의 제조방법.
- 제17 항에 있어서,상기 점진적으로 굴절률이 변화하는 구조는 계단식으로 이루어지며,상기 점진적으로 굴절률이 변화하는 분포는 선형, 다항형(Polynomial), 가우시안형(Gaussian) 또는 비선형 분포 중 어느 하나인 것을 특징으로 하는 실리콘 다층 무반사막을 구비하는 태양전지의 제조방법.
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CN2011800378467A CN103069308A (zh) | 2010-08-02 | 2011-07-29 | 折射率逐渐变化的多层硅无反射膜及其制备方法以及具有该多层硅无反射膜的太阳能电池及其制备方法 |
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- 2011-07-29 US US13/703,702 patent/US20130087194A1/en not_active Abandoned
- 2011-07-29 CN CN2011800378467A patent/CN103069308A/zh active Pending
- 2011-07-29 WO PCT/KR2011/005626 patent/WO2012018199A2/ko active Application Filing
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CN103178158A (zh) * | 2013-02-28 | 2013-06-26 | 溧阳市生产力促进中心 | 具有减反射膜的四结太阳能电池的制造方法 |
CN103199123A (zh) * | 2013-03-28 | 2013-07-10 | 常州大学 | 一种太阳能电池减反结构及其制备方法 |
CN109863434A (zh) * | 2016-10-20 | 2019-06-07 | 3M创新有限公司 | 用于光学窗口掩饰的装置 |
Also Published As
Publication number | Publication date |
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US20130087194A1 (en) | 2013-04-11 |
CN103069308A (zh) | 2013-04-24 |
KR20120012555A (ko) | 2012-02-10 |
WO2012018199A3 (ko) | 2012-05-10 |
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