CN207651507U - solar battery sheet with light trapping structure - Google Patents

solar battery sheet with light trapping structure Download PDF

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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
Application number
CN201721799119.5U
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Chinese (zh)
Inventor
孙绍臻
戚运东
马庆海
孟庆凯
潘若宏
玄志歌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong New Union Intelligent Photovoltaic Co Ltd
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Shandong New Union Intelligent Photovoltaic Co Ltd
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Priority to CN201721799119.5U priority Critical patent/CN207651507U/en
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Publication of CN207651507U publication Critical patent/CN207651507U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV 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

Solar battery sheet with light trapping structure
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.
CN201721799119.5U 2017-12-21 2017-12-21 solar battery sheet with light trapping structure Expired - Fee Related CN207651507U (en)

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

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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
CN (1) CN207651507U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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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