CN111244208B - Solar cell and application thereof - Google Patents
Solar cell and application thereof Download PDFInfo
- Publication number
- CN111244208B CN111244208B CN202010170777.8A CN202010170777A CN111244208B CN 111244208 B CN111244208 B CN 111244208B CN 202010170777 A CN202010170777 A CN 202010170777A CN 111244208 B CN111244208 B CN 111244208B
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- Prior art keywords
- pyramid
- assembly
- solar cell
- vertex
- battery piece
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- 210000004027 cell Anatomy 0.000 claims 4
- 210000003850 cellular structure Anatomy 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 abstract description 11
- 239000011159 matrix material Substances 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 description 18
- 238000000429 assembly Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 238000010248 power generation Methods 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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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
- H01L31/04—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
- H01L31/0236—Special surface textures
- H01L31/02366—Special surface textures of the substrate or of a layer on the substrate, e.g. textured ITO/glass substrate or superstrate, textured polymer layer on glass substrate
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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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a solar cell, wherein the front side of the solar cell is provided with a pyramid suede structure; the projection of the pyramid vertex on the plane of the pyramid bottom surface is positioned on one side of the center of the pyramid bottom surface; and the vertexes of the pyramids on the cell sheet face the same direction. The invention also provides an application of the solar cell. Compared with the conventional battery piece adopting a regular rectangular pyramid suede structure, the reflectivity of the battery piece is lower; by adopting the assembly of the battery piece, the efficiency is higher; the assembly is suitable for vertical installation and horizontal installation; the components can be horizontally spliced into a square matrix, so that the floor area of the square matrix can be greatly reduced.
Description
Technical Field
The invention relates to the field of photovoltaics, in particular to a solar cell and application thereof.
Background
The reflectivity of the surface of the silicon wafer is an important factor influencing the efficiency of the solar cell, and in order to reduce the reflectivity of the surface of the silicon wafer, a textured structure needs to be prepared on the surface of the silicon wafer, which is usually a pyramid structure, namely a regular rectangular pyramid structure.
The existing regular rectangular pyramid textured structure can reduce the reflectivity of the surface of the silicon wafer, but the textured structure needs to be further optimized so as to further reduce the reflectivity of the surface of the silicon wafer.
Disclosure of Invention
In order to further reduce the reflectivity of the surface of the silicon wafer, the invention provides a solar cell, wherein the front side of the solar cell is provided with a pyramid suede structure; the projection of the pyramid vertex on the plane of the pyramid bottom surface is positioned on one side of the center of the pyramid bottom surface; and the vertexes of the pyramids on the cell sheet face the same direction.
Preferably, the projection of the pyramid vertex on the plane of the pyramid base is located outside the pyramid base; and the vertexes of the pyramids on the cell sheet face the same direction. And the pyramid is preferably a rectangular pyramid comprising a bottom surface and four side surfaces, the bottom surface being rectangular or square, and one of the side surfaces making an obtuse angle with the bottom surface, the obtuse angle preferably being not more than 110 degrees.
Under the condition that the battery pieces are placed in the same state and the incident angles of sunlight are the same, the reflection times of the pyramid suede structure on the sunlight can be more than the reflection times of the existing regular rectangular pyramid suede structure on the sunlight, so that the reflectivity of the battery piece is lower compared with the existing battery piece adopting the regular rectangular pyramid suede structure.
The invention also provides a solar cell module, which adopts the solar cell, and the pyramidal vertexes of the cells in the module are in the same direction.
The solar cell module generally comprises a plurality of cell sheets, wherein the pyramid vertexes of all the cell sheets in the module are in the same direction, and the light trapping effect of the pyramid textured structure of each cell sheet can be exerted; under the condition that the components are placed in the same state and the incident angles of sunlight are the same, compared with the existing component adopting the regular rectangular pyramid suede structure battery pieces, the reflectivity of each battery piece in the component is lower, so that the efficiency of the whole component is higher.
The above-mentioned assembly can be set up vertically, such as the assembly is installed on the outer facade of the building; when the assembly is mounted in the southern hemisphere, the assembly is preferably arranged vertically, facing north; when the assembly is mounted in the northern hemisphere, the assembly is preferably arranged vertically, facing south; and when the assembly is vertically arranged, the vertex of the pyramid of each battery piece in the assembly is upward arranged preferably.
When the assembly is vertically arranged, the vertex of the pyramid of each battery piece in the assembly is upwards arranged, so that the light trapping effect of the pyramid suede structure can be better applied; the assemblies arranged on the southern hemisphere are vertically arranged in the north direction and are vertically arranged in the northern hemisphere in the south direction, so that the assemblies can better obtain the irradiation of the sun, and the power generation capacity of the assemblies is improved.
The above-mentioned subassembly can the level setting: when the assembly is horizontally arranged in a southern hemisphere, the vertex of the pyramid of each battery piece in the assembly is arranged towards the north, so that the light trapping effect of the pyramid suede structure can be better applied; when the assembly is horizontally arranged in a northern hemisphere, the vertexes of the pyramids of all the battery pieces in the assembly are arranged towards the south, and the light trapping effect of the pyramid suede structure can be better applied.
The above-mentioned assembly can be obliquely arranged, for example, the oblique installation mode of existent assembly is adopted; when the assembly is mounted in the southern hemisphere, the assembly is preferably tilted to the north; when the assembly is mounted in the northern hemisphere, the assembly is preferably arranged obliquely toward the south; and when the assembly is obliquely arranged, the vertex of the pyramid of each battery piece in the assembly is preferably arranged upwards.
When the assembly is obliquely arranged, the vertex of the pyramid of each battery piece in the assembly is upwards arranged, so that the light trapping effect of the pyramid suede structure can be better applied; the assemblies arranged on the southern hemisphere are obliquely arranged towards the north, and the assemblies arranged on the northern hemisphere are obliquely arranged towards the south, so that the assemblies can better obtain the irradiation of the sun, and the power generation capacity of the assemblies is improved.
The invention also provides a solar cell square matrix which adopts the horizontally arranged components, and adjacent components in the square matrix are spliced together.
The adjacent assemblies in the square matrix are spliced together, namely the adjacent assemblies can have zero clearance, so that the floor area of the square matrix can be greatly reduced.
Drawings
FIG. 1 is a schematic view of the cells when they are all flat;
FIG. 2 is a schematic view of the cells all standing upright;
fig. 3 is a schematic view of the cells when they are all tilted.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
In order to further reduce the reflectivity of the surface of the silicon wafer, the invention provides a solar cell, wherein the front side of the solar cell is provided with a pyramid suede structure; the projection of the pyramid vertex on the plane of the pyramid bottom is positioned at the outer side of the pyramid bottom; and the vertexes of the pyramids on the cell sheet face the same direction. The pyramid is preferably a rectangular pyramid comprising a base and four sides, the base being rectangular or square, with one side making an obtuse angle with the base, preferably no more than 110 degrees.
As shown in fig. 1, under the condition that the cells are all horizontally arranged and the incident angles of sunlight are the same, the reflection times of the sunlight by the pyramid suede structure of the invention can be more than the reflection times of the sunlight by the existing regular rectangular pyramid suede structure;
as shown in fig. 2, under the condition that the cells are all vertically arranged and the incident angles of the sunlight are the same, the reflection times of the regular rectangular pyramid suede structure of the invention to the sunlight can be more than the reflection times of the regular rectangular pyramid suede structure to the sunlight;
as shown in fig. 3, under the condition that the cells are all obliquely arranged and the incident angles of the sunlight are the same, the reflection times of the sunlight by the pyramid suede structure of the invention can be more than the reflection times of the sunlight by the existing regular rectangular pyramid suede structure;
in summary, under the condition that the battery pieces are placed in the same state and the incident angles of sunlight are the same, the reflection times of the regular rectangular pyramid suede structure on the sunlight can be more than the reflection times of the regular rectangular pyramid suede structure on the sunlight, so that the reflectivity of the battery piece is lower compared with the existing battery piece adopting the regular rectangular pyramid suede structure.
Example 2
The invention also provides a solar cell module, which adopts the solar cell, and the pyramidal vertexes of the cells in the module are in the same direction.
The solar cell module generally comprises a plurality of cell sheets, wherein the pyramid vertexes of each cell sheet in the module are in the same direction, and the light trapping effect of the pyramid textured structure of each cell sheet can be exerted.
The above-mentioned subassembly can the level setting: when the assembly is horizontally arranged in a southern hemisphere, the vertexes of the pyramids of the battery pieces in the assembly are arranged towards the north (namely, the vertexes of the pyramids on the battery pieces in the assembly are all arranged in an inclined north way, so that the vertexes of the pyramids are positioned on the north side of the bottom surface of the pyramids), and the light trapping effect of the pyramid suede structure can be better applied; when the assembly is horizontally arranged in a northern hemisphere, the vertexes of the pyramids of the battery pieces in the assembly are arranged towards the south (namely, the vertexes of the pyramids on the battery pieces in the assembly are all arranged obliquely to the south, so that the vertexes of the pyramids are positioned on the south side of the bottom surface of the pyramids), and the light trapping effect of the pyramid suede structure can be better applied.
The above-mentioned assembly can be set up vertically, such as the assembly is installed on the outer facade of the building; when the assembly is vertically arranged, the vertexes of the pyramids of the battery pieces in the assembly are upwards arranged (namely, the vertexes of the pyramids on the battery pieces in the assembly are obliquely upwards arranged, so that the vertexes of the pyramids are positioned above the bottom surface of the pyramids), and the light trapping effect of the pyramid suede structure can be better applied; the assemblies arranged on the southern hemisphere are vertically arranged in the north direction and are vertically arranged in the northern hemisphere in the south direction, so that the assemblies can better obtain the irradiation of the sun, and the power generation capacity of the assemblies is improved.
The above-mentioned assembly can be obliquely arranged, for example, the oblique installation mode of existent assembly is adopted; when the assembly is obliquely arranged, the vertexes of the pyramids of the battery pieces in the assembly are upwards arranged (namely, the vertexes of the pyramids on the battery pieces in the assembly are obliquely upwards arranged, so that the vertexes of the pyramids are positioned above the bottom surface of the pyramids), and the light trapping effect of the pyramid suede structure can be better applied; the assemblies arranged on the southern hemisphere are obliquely arranged towards the north, and the assemblies arranged on the northern hemisphere are obliquely arranged towards the south, so that the assemblies can better obtain the irradiation of the sun, and the power generation capacity of the assemblies is improved.
Under the condition that the components are placed in the same state and the incident angles of sunlight are the same, compared with the existing component adopting the regular rectangular pyramid suede structure battery pieces, the reflectivity of each battery piece in the component is lower, so that the efficiency of the whole component is higher.
Example 3
The invention also provides a solar cell square matrix which adopts the horizontally arranged components, and adjacent components in the square matrix are spliced together.
The adjacent assemblies in the square matrix are spliced together, namely the adjacent assemblies can have zero clearance, so that the floor area of the square matrix can be greatly reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (2)
1. The front side of a solar cell sheet adopted by the solar cell component is provided with a pyramid suede structure; the pyramid is a rectangular pyramid and comprises a bottom surface and four side surfaces; the bottom surface of the rectangular pyramid is rectangular or square; the projection of the pyramid vertex on the plane of the pyramid bottom is positioned at the outer side of the pyramid bottom; the rectangular pyramid has an included angle between one side surface and the bottom surface which is an obtuse angle, and the obtuse angle is not more than 110 degrees; the vertexes of all the pyramids on the battery piece face the same direction; the pyramid vertexes of all the battery pieces in the assembly face the same direction;
the assembly is arranged on the outer vertical surface of a building of a southern hemisphere, the assembly is vertically arranged in a north direction, and the vertex of a pyramid of each battery piece in the assembly is arranged upwards;
or the assembly is arranged on the outer vertical surface of a building of the northern hemisphere, the assembly is vertically arranged towards the south, and the vertex of the pyramid of each battery piece in the assembly is upwards arranged;
or the assembly is arranged on a southern hemisphere, the assembly is horizontally arranged, and the vertex of the pyramid of each battery piece in the assembly faces north;
or the assembly is arranged in the northern hemisphere, the assembly is horizontally arranged, and the vertex of the pyramid of each cell sheet in the assembly faces south.
2. A solar cell array using the solar cell module of claim 1, wherein adjacent modules in the array are spliced together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010170777.8A CN111244208B (en) | 2020-03-12 | 2020-03-12 | Solar cell and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010170777.8A CN111244208B (en) | 2020-03-12 | 2020-03-12 | Solar cell and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111244208A CN111244208A (en) | 2020-06-05 |
| CN111244208B true CN111244208B (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010170777.8A Active CN111244208B (en) | 2020-03-12 | 2020-03-12 | Solar cell and application thereof |
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| Country | Link |
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| CN (1) | CN111244208B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017193125A1 (en) | 2016-05-06 | 2017-11-09 | Rensselaer Polytechnic Institute | High absorption photovoltaic material and methods of making the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204697623U (en) * | 2015-05-25 | 2015-10-14 | 李惠锋 | The green house of photovoltaic module and light deflection device is installed |
| CN105355697A (en) * | 2015-11-20 | 2016-02-24 | 电子科技大学 | A light trapping structure and a manufacturing method thereof and a thin-film solar cell having the structure |
| CN207651507U (en) * | 2017-12-21 | 2018-07-24 | 山东新华联智能光伏有限公司 | solar battery sheet with light trapping structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001271074A1 (en) * | 2000-09-29 | 2002-04-15 | Dainippon Printing Co. Ltd. | Fresnel lens, screen, image display device, lens mold manufacturing method, and lens manufacturing method |
| WO2015159456A1 (en) * | 2014-04-16 | 2015-10-22 | 三菱電機株式会社 | Solar cell and solar cell manufacturing method |
| CN207818593U (en) * | 2017-12-28 | 2018-09-04 | 惠州比亚迪电池有限公司 | Photovoltaic module cellular construction and solar power system |
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2020
- 2020-03-12 CN CN202010170777.8A patent/CN111244208B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204697623U (en) * | 2015-05-25 | 2015-10-14 | 李惠锋 | The green house of photovoltaic module and light deflection device is installed |
| CN105355697A (en) * | 2015-11-20 | 2016-02-24 | 电子科技大学 | A light trapping structure and a manufacturing method thereof and a thin-film solar cell having the structure |
| CN207651507U (en) * | 2017-12-21 | 2018-07-24 | 山东新华联智能光伏有限公司 | solar battery sheet with light trapping structure |
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| Publication number | Publication date |
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| CN111244208A (en) | 2020-06-05 |
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