CN207651507U - solar battery sheet with light trapping structure - Google Patents
solar battery sheet with light trapping structure Download PDFInfo
- Publication number
- CN207651507U CN207651507U CN201721799119.5U CN201721799119U CN207651507U CN 207651507 U CN207651507 U CN 207651507U CN 201721799119 U CN201721799119 U CN 201721799119U CN 207651507 U CN207651507 U CN 207651507U
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- CN
- China
- Prior art keywords
- trapping structure
- light trapping
- light
- solar cell
- battery sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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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
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- Photovoltaic Devices (AREA)
Abstract
Solar battery sheet with light trapping structure, is related to technical field of solar batteries, especially belongs to a kind of solar battery sheet with light trapping structure.Including solar cell basic unit, the solar cell basic unit includes the PN junction after Window layer, light trapping structure layer, diffusion, incidence surface of the Window layer as solar cell, it is characterized in that, it is provided with light trapping structure on light trapping structure layer, the light trapping structure includes that channel-type falls into session or the sunken unthreaded hole of point type, light trapping structure in the utility model makes more flexible easily controllable, it is adjustable to fall into angular, light size adjustable is fallen into, light reconfigurable is fallen into, it is more preferable to fall into light effect, the absorption rate higher of light, the efficiency of cell piece also higher.In conclusion the utility model has the good effect for improving production and processing efficiency.
Description
Technical field
The utility model is related to technical field of solar batteries, especially belong to a kind of solar-electricity with light trapping structure
Pond piece.
Background technology
As the important component of Solar use, photovoltaic generation is a kind of clean, nexhaustible renewable green
Color new energy receives more and more concerns.Global theCourse of PV Industry speed is swift and violent in recent years, and China's photovoltaic industry scale
It has been sure to occupy the whole world first.Currently, crystal silicon solar energy battery accounts for the leading of the photovoltaic industry market share, due to silicon materials at
This is high, and improve solar cell just becomes very heavy to the absorption efficiency of light and the transfer efficiency of solar cell
It wants.
For power station is invested, either client or owner are desirable in the limited installation for possessing bigger in the localities and hold
Amount, whose component efficiency higher, whose product undoubtedly have the advantage of bigger.For client, identical component count, more
Installed capacity mean more gene-ration revenues, for developer, more efficient component, it is meant that similarly using face
Product can possess the installed capacity of bigger, that is, the selling operation amount of bigger.
Presently, for the above, major photovoltaic module production commercial city pursuit be higher efficiency photovoltaic group
Part technology and technique, different producers select different production lines, and some is using the component of multiple-grid line, other materials of some uses
Component of material such as perovskite, HIT etc., some are furtherd investigate in the techniques such as plated film, making herbs into wool.Its purpose is the same,
Improve the photoelectric conversion efficiency of battery.
Light trapping structure is introduced in solar battery structure can improve absorption of the solar cell to light, improve solar energy
The transfer efficiency of battery.Light trapping structure is distributed to all angles by transmitting, refraction and scattering, by incident ray, to increase
The light path of light in solar cells, improves the absorptivity of light.A large amount of research has shown that, introduces fall into light knot in solar cells
Structure is conducive to improve the short circuit current and transfer efficiency of solar cell.
Invention content
The purpose of this utility model is to provide a kind of solar battery sheet with light trapping structure, be given birth to reaching to improve
Produce processing efficiency, purpose.
A kind of solar battery sheet with light trapping structure provided by the utility model, including solar cell are substantially single
Member, the solar cell basic unit include the PN junction after Window layer, light trapping structure layer, diffusion, and Window layer is as the sun
The incidence surface of energy battery, which is characterized in that light trapping structure is provided on light trapping structure layer, the light trapping structure includes raceway groove
Formula falls into session or point type falls into unthreaded hole.
Further, the cross section that channel-type falls into session is to be spaced discontinuous obtuse angle triangular shape distribution;Point type falls into unthreaded hole
Cross section be to be spaced the distribution of discontinuous isosceles trapezoid.
Solar battery sheet provided by the utility model with light trapping structure, the life of the utility model abandoning tradition
The slow techniques such as long, etching, by ultraviolet laser device, carry out cell piece surface controllable cold by the way of cold working
The mode of processing, light trapping structure are more stablized.This light trapping structure is cold worked by ultraviolet laser, and size can reach theoretical pole
The centre wavelength of limit, ultraviolet laser is 0.4 μm hereinafter, the hot spot of laser can be adjusted according to focus lamp, compared to existing work
3-5 μm of height dimension of pyramid structure after the lye making herbs into wool of skill, light trapping structure make more flexible easily controllable, sunken angular
It is adjustable, light size adjustable is fallen into, falls into light reconfigurable, sunken light effect is more preferable, the absorption rate higher of light, the efficiency of cell piece
Higher.In conclusion the utility model has the good effect for improving production and processing efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram under 1 state of the embodiments of the present invention;
Fig. 2 is the structural schematic diagram under 2 state of the embodiments of the present invention.
Specific implementation mode
Solar battery sheet provided by the utility model with light trapping structure, including solar cell basic unit,
The solar cell basic unit includes the PN junction after Window layer, light trapping structure layer, diffusion, and Window layer is as solar-electricity
The incidence surface in pond, is provided with light trapping structure on light trapping structure layer, and the light trapping structure includes that channel-type falls into session or point
Formula falls into unthreaded hole.Channel-type as shown in Figure 1 falls into the light trapping structure of session, uses the cross section that continuous wave laser is processed to be spaced not
The triangular shape distribution of continuous obtuse angle.Point type as shown in Figure 2 falls into unthreaded hole, uses the cross section that pulse laser is processed to be spaced not
Continuous isosceles trapezoid distribution.Light trapping structure disclosed in the utility model has black body characteristics, that is, has higher light absorption
Rate, smaller light reflectivity, and then can ensure the higher photoelectric conversion efficiency of solar battery sheet.
Claims (2)
1. a kind of solar battery sheet with light trapping structure, including solar cell basic unit, the solar cell
Basic unit includes the PN junction after Window layer, light trapping structure layer, diffusion, and incidence surface of the Window layer as solar cell is special
Sign is, light trapping structure is provided on light trapping structure layer, and the light trapping structure includes that the sunken session of channel-type or point type are fallen into
Unthreaded hole.
2. the solar battery sheet according to claim 1 with light trapping structure, it is further characterized in that, channel-type falls into session
Cross section be to be spaced the distribution of discontinuous obtuse angle triangular shape;The cross section that point type falls into unthreaded hole is to be spaced discontinuous isosceles trapezoid
Distribution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721799119.5U CN207651507U (en) | 2017-12-21 | 2017-12-21 | solar battery sheet with light trapping structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721799119.5U CN207651507U (en) | 2017-12-21 | 2017-12-21 | solar battery sheet with light trapping structure |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207651507U true CN207651507U (en) | 2018-07-24 |
Family
ID=62878410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721799119.5U Expired - Fee Related CN207651507U (en) | 2017-12-21 | 2017-12-21 | solar battery sheet with light trapping structure |
Country Status (1)
Country | Link |
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CN (1) | CN207651507U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111244208A (en) * | 2020-03-12 | 2020-06-05 | 常州时创能源股份有限公司 | Solar cell and application thereof |
CN111599877A (en) * | 2019-05-29 | 2020-08-28 | 电子科技大学 | Super-surface light trapping structure for solar cell and preparation method thereof |
WO2021223585A1 (en) * | 2020-05-08 | 2021-11-11 | 常州时创能源股份有限公司 | Solar cell and use thereof |
-
2017
- 2017-12-21 CN CN201721799119.5U patent/CN207651507U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111599877A (en) * | 2019-05-29 | 2020-08-28 | 电子科技大学 | Super-surface light trapping structure for solar cell and preparation method thereof |
CN111599877B (en) * | 2019-05-29 | 2022-03-11 | 电子科技大学 | All-dielectric super-surface light trapping structure for solar cell and preparation method thereof |
CN111244208A (en) * | 2020-03-12 | 2020-06-05 | 常州时创能源股份有限公司 | Solar cell and application thereof |
CN111244208B (en) * | 2020-03-12 | 2022-02-18 | 常州时创能源股份有限公司 | Solar cell and application thereof |
WO2021223585A1 (en) * | 2020-05-08 | 2021-11-11 | 常州时创能源股份有限公司 | Solar cell and use thereof |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20191221 |
|
CF01 | Termination of patent right due to non-payment of annual fee |