CN108297533A - The screen structure and preparation method thereof of finger-like formula electrode for wire mark solar cell - Google Patents
The screen structure and preparation method thereof of finger-like formula electrode for wire mark solar cell Download PDFInfo
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- CN108297533A CN108297533A CN201710022441.5A CN201710022441A CN108297533A CN 108297533 A CN108297533 A CN 108297533A CN 201710022441 A CN201710022441 A CN 201710022441A CN 108297533 A CN108297533 A CN 108297533A
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- 238000002360 preparation method Methods 0.000 title description 3
- 239000004744 fabric Substances 0.000 claims abstract description 57
- 239000000839 emulsion Substances 0.000 claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000007639 printing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 238000003698 laser cutting Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000005323 electroforming Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001259 photo etching Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/14—Forme preparation for stencil-printing or silk-screen printing
-
- 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
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- 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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- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of screen structure, is used for the finger-like formula electrode of wire mark solar cell, including：One screen cloth, screen cloth are made of a plurality of warp and a plurality of weft, and each of a plurality of warp is parallel to each other, and each of a plurality of weft connects a plurality of warp；One emulsion layer is coated with and is formed on screen cloth；And a plurality of finger-like formula electrode pattern opening, a plurality of finger-like formula electrode pattern opening are formed on emulsion layer；Wherein, each of a plurality of weft is with first end point and the second endpoint, each of a plurality of weft connects at least two warps in a plurality of warp by first end point and the second endpoint, and each of a plurality of weft and each angle formed of a plurality of warp are on-right angle；Furthermore the present invention also provides a kind of production method of the screen structure of the finger-like formula electrode for wire mark solar cell.
Description
Technical field
The present invention is a kind of printing screen plate structure, particularly relates to a kind of finger-like formula electrode for wire mark solar cell
The production method of the screen structure screen structure.
Background technology
Solar energy is the inexhaustible regenerative resource of the mankind and clean energy, does not generate any ring
It pollutes in border.Solar battery technology is research field with fastest developing speed in recent years, most active.Produce crystal silicon solar electricity
One of the step of pond most critical is to manufacture very delicate electrode in the front and back of silicon wafer, by photoelectron remittance abroad battery,
This metal coating technique is typically to be completed by printing screen plate technology.Printing process is placed on print station from silicon wafer and opens
Begin, very delicate printing screen cloth is fixed on screen frame, is placed on above silicon wafer, and printing screen cloth is closed by high molecular material
Other regions in addition to electrode of solar battery pattern, so that electrocondution slurry can pass through.Silicon wafer and Printing screen
Distance will be controlled strictly.Since solar battery front side needs more very thin metal wire, it is being accordingly used in solar cell just
Its mesh (being made of a plurality of warp, weft) of the halftone of face printing is usual than being used for the much tiny of back up, later handle
Suitable slurry is positioned on halftone, is smeared slurry with scraper, so that it is uniformly filled among mesh, scraper is in mobile mistake
Slurry is expressed to by halftone mesh on silicon wafer in journey.
The structure of multiple finger-like formula electrodes of solar cell is more thinner better, is accordingly used in the more of wire mark solar cell
Multiple patterns of openings of a finger-like formula electrode are also towards increasingly thinner direction and develop.However, when the (printing of multiple patterns of openings
Circuit) it is thinner, ink influenced by warp, weft it is bigger, especially in warp, the infall of weft.Therefore exist at present
Have in the prior art multiple patterns of openings are arranged to it is parallel with warp, with reduce multiple patterns of openings by warp, weft hand over
Chance at fork.Fig. 1 is a schematic diagram, to illustrate the net of the finger-like formula electrode for wire mark solar cell in the prior art
Plate structure.Fig. 1 is please referred to, halftone 1 in the prior art includes a screen frame 10, later consolidates a plurality of weft 12 and a plurality of warp 14
It is fixed on screen frame 10 and tensing, to form a screen cloth 16 on screen frame 10.Then, it can be coated on screen cloth 16 and form an emulsion
Layer 18, finally forms multiple patterns of openings 28 on emulsion layer 18, and multiple patterns of openings 28 are parallel with a plurality of warp 14, to reduce
Multiple patterns of openings 28 pass through the chance of a plurality of weft 12,14 infall of a plurality of warp, and multiple patterns of openings 28 are to be used for net
Print multiple finger-like formula electrodes of solar cell.
It really can the thinner finger-like of wire mark although multiple patterns of openings 28 are arranged to the method parallel with a plurality of warp 14
Formula electrode, but because in halftone 1, multiple patterns of openings 28 are mutually perpendicular with a plurality of weft 12, when ink is through multiple
28 wire mark finger-like formula electrode of patterns of openings, and when ink is by a plurality of weft 12, ink is by the resistance from a plurality of weft 12
Power can be larger, it is therefore desirable to use more ink, cause the finger-like formula electrode impedance that wire mark comes out that can increase, and then influence the sun
The generating efficiency of energy battery.In addition, in the screen structure for wire mark solar cell, multiple wire jumper electrode patterns with it is a plurality of
When weft is parallel, it be easy to cause printing broken string.
Accordingly, it is desirable to provide a kind of new screen structure, makes a plurality of warp and the mutual out of plumb of a plurality of weft.When in halftone
Multiple patterns of openings when being arranged to parallel with a plurality of warp, and then make multiple patterns of openings and the mutual out of plumb of a plurality of weft.
Thus, when ink penetrates multiple patterns of openings wire mark finger-like formula electrodes, and when ink is by a plurality of weft, ink by
Resistance from a plurality of weft can be smaller, and the finger-like formula electrode for making wire mark come out has higher generating efficiency.
Invention content
The shortcomings that in view of the above-mentioned prior art, the main purpose of the present invention is to provide a kind of screen structures, are used for wire mark
The finger-like formula electrode of solar cell, be including：One screen cloth, screen cloth are made of a plurality of warp and a plurality of weft, a plurality of warp
Each is parallel to each other, each of a plurality of weft connects a plurality of warp；One emulsion layer is coated with and is formed on screen cloth；With
And multiple finger-like formula electrode pattern openings, multiple finger-like formula electrode pattern openings are formed on emulsion layer, and multiple finger-like formulas electricity
Each of pole pattern openings is set in the interval that arbitrary two adjacent warps are formed；Wherein, each tool of a plurality of weft
There are a first end point and one second endpoint, each of a plurality of weft to be connected in a plurality of warp by first end point and the second endpoint
At least two warps, and angle that each of each of a plurality of weft and a plurality of warp are formed is on-right angle.
Preferably, the shape of each of a plurality of weft is straight line, and angle is any value in 0 to 89 degree.
Preferably, angle is 22.5 degree, 30 degree, one of 45 degree.
Preferably, the shape of each of a plurality of weft is circular arc line, each of the weft is every with the warp
The angle formed between one be circular arc line each in a tangent line of first end point or the second endpoint and the warp
Corresponding warp is formed by angle, and angle is any value in 0 to 89 degree.
Preferably, angle is 22.5 degree, 30 degree, one of 45 degree.
Furthermore screen structure of the invention further comprises that a wire jumper electrode pattern is open, wire jumper electrode pattern opening shape
At on emulsion layer, wire jumper electrode pattern opening is interconnected with multiple finger-like formula electrode patterns opening, and wire jumper electrode pattern
Opening is not parallel to each other with a plurality of weft.
The present invention also provides a kind of production method of the screen structure of the finger-like formula electrode for wire mark solar cell, is
Include the following steps：A plurality of warp is formed on a metal plate, each of a plurality of warp is parallel to each other；On metal plate
A plurality of weft is formed, each of a plurality of weft connects a plurality of warp, wherein each of a plurality of weft has a first end point
With one second endpoint, each of a plurality of weft connects at least two warps in a plurality of warp by first end point and the second endpoint
Line；Each angle formed that each and a plurality of warp of a plurality of weft is arranged is on-right angle, and by a plurality of warp and
A plurality of weft forms a screen cloth；It is coated on screen cloth and forms an emulsion layer；And form a plurality of finger-like formula electrode pattern opening
In on emulsion layer, wherein each of a plurality of finger-like formula electrode pattern opening is set to the interval that arbitrary two adjacent warps are formed
In.
Preferably, the shape of each that a plurality of weft is arranged in setting is straight line, and it is appointing in 0 to 89 degree that angle, which is arranged,
One numerical value.
Preferably, angle is 22.5 degree, 30 degree, one of 45 degree.
Preferably, the shape of each that a plurality of weft is arranged is circular arc line, each and the warp of the weft
Each between the angle that is formed be circular arc line each in a tangent line of first end point or the second endpoint and the warp
In correspondence warp be formed by angle, angle is any value in 0 to 89 degree.
Preferably, angle is 22.5 degree, 30 degree, one of 45 degree.
Furthermore the production method of the screen structure of the finger-like formula electrode for wire mark solar cell of the invention, into one
Step includes forming the step that wire jumper electrode pattern is opened on emulsion layer, wherein wire jumper electrode pattern is open and a plurality of finger-like formula
Electrode pattern opening interconnects, and wire jumper electrode pattern opening is not parallel to each other with a plurality of weft.
Other purposes, benefit and the character of innovation of the present invention can be by detailed example of the invention below together with annexed drawings
And it learns.
Description of the drawings
When and with each alterations when reading, you can be better understood upon before preferable example of the present invention and take off abstract and above
It is described in detail.To be painted with preferably each example of existing category up to the illustration purpose of the present invention, in each schema.It so should be appreciated that the present invention not
It is limited to the accurate be set with mode painted and apparatus.
Fig. 1 is the structural schematic diagram for illustrating printing screen plate in the prior art；
The screen cloth structure of Fig. 2 finger-like formula electrodes for wire mark solar cell of first embodiment to illustrate the invention shows
It is intended to；
The screen structure of Fig. 3 finger-like formula electrodes for wire mark solar cell of first embodiment to illustrate the invention shows
It is intended to；
Fig. 4 cross-sectional views in Fig. 3 at arrow to illustrate the invention；
Fig. 5 to illustrate the invention the wire jumper electrode for wire mark solar cell of other embodiment screen structure signal
Figure；
The screen cloth structure of Fig. 6 finger-like formula electrodes for wire mark solar cell of second embodiment to illustrate the invention shows
It is intended to；
The screen cloth structure of Fig. 7 finger-like formula electrodes for wire mark solar cell of 3rd embodiment to illustrate the invention shows
It is intended to；
The screen cloth structure of Fig. 8 finger-like formula electrodes for wire mark solar cell of fourth embodiment to illustrate the invention shows
It is intended to；
The screen cloth structure of Fig. 9 finger-like formula electrodes for wire mark solar cell of the 5th embodiment to illustrate the invention shows
It is intended to；And
The screen structure production flow diagram of the finger-like formula electrodes for wire mark solar cell of Figure 10 to illustrate the invention.
Wherein, the reference numerals are as follows：
1 halftone
10 screen frames
12 wefts
14 warps
16 screen cloths
18 emulsion layers
28 patterns of openings
2,5,6,7,8 screen cloth
20,50,60,70,80 warp
22,52,62,72,82 weft
24 emulsion layers
26 finger-like formula electrode patterns are open
27 wire jumper electrode patterns are open
221,521,621,721,821 first end point
223,523,623,723,823 second endpoint
725,727,825,827 tangent line
D1, d2, d3, d4, d5, d6, d7, d8 tangent line angle
S901-S909 steps
Specific implementation mode
It reference will now be made in detail present invention example shown in the drawings.All schemas represent phase with similar elements symbols as far as possible
Same or similar part.It please notes that the schema system is drawn in simplified form, is not drawn according to precise proportions.
Fig. 2 is a schematic diagram, to illustrate the finger-like formula electricity for wire mark solar cell of first embodiment of the invention
The screen cloth structure of pole.Fig. 2 is please referred to, in the first embodiment of the invention, is used for the finger-like formula electrode of wire mark solar cell
Screen cloth 2 includes a plurality of warp 20 and a plurality of weft 22.Each of a plurality of warp 20 is parallel to each other, a plurality of weft 22 each
Connect a plurality of warp 20.As seen from Figure 2, each of a plurality of weft 22 has a first end point 221 and one second endpoint
223, each of a plurality of weft 22 connects at least two in a plurality of warp 20 by first end point 221 and the second endpoint 223
Warp 20, and each of a plurality of weft 22 and each angle d1, angle d2 for being formed of a plurality of warp 20 are on-right angle.It answers
It is appreciated that, in the first embodiment of the invention, each of a plurality of weft 22 is two adjacent warps 20 of connection, but at this
In invention other embodiment, each of a plurality of weft 22 can connect arbitrary two warps 20 in screen cloth 2.
Fig. 2 is referred again to, the shape of a plurality of weft 22 is straight line (also referred to as oblique line), including upper left is tiltedly to the oblique line of bottom right
And upper right is tiltedly to the oblique line of lower-left, to allow a plurality of weft 22 to form a sawtooth pattern shape in screen cloth 2.About angle d1 and angle
D2, specifically, angle d1 and angle d2 be 0 to 89 degree in any value, preferably, angle d1, angle d2 be 22.5 degree,
30 degree, one of 45 degree, and angle d1 and angle d2 can be identical angle.It is to be understood that above-mentioned about a plurality of latitude
The oblique line directions of line 22 are for illustrating that the oblique line in Fig. 2 of the present invention, above-mentioned oblique line directions can not be used to limit the present invention's
Screen cloth structure.
In the first embodiment of the invention, can on a metal plate by electroforming manufacturing method thereof, etch process method or
Laser cutting manufacturing method thereof produces the screen cloth 2 for including a plurality of weft 22 in oblique line.In addition, in other embodiments of the invention
In, the line footpath size of a plurality of warp 20 and a plurality of weft 22 can be different.
Fig. 3 is a schematic diagram, to illustrate the finger-like formula electricity for wire mark solar cell of first embodiment of the invention
The screen structure of pole.Fig. 3 is please referred to, is that an emulsion layer 24 is coated with and formed on screen cloth 2 in the first embodiment of the invention,
It is multiple in being formed on screen cloth 2 followed by one of egative film contraposition, laser cutting contraposition or the contraposition of ultraviolet photoetching circuit
Finger-like formula electrode pattern opening 26, multiple finger-like formula electrode pattern openings 26 are set to what arbitrary two adjacent warps 20 were formed
In interval, what is more, multiple finger-like formula electrode pattern openings 26 are disposed on the interval that arbitrary two adjacent warps 20 are formed
In, and be parallel with a plurality of warp 20.As seen from Figure 3, a plurality of weft 22 is not mutually perpendicular with a plurality of warp 20,
Therefore when multiple finger-like formula electrode patterns opening 26 is arranged to parallel with a plurality of warp 20, ink penetrates multiple patterns of openings 26
When wire mark finger-like formula electrode, its difference of height can be smaller by the part of a plurality of weft 20 for ink, so that ink is easier lower ink, simultaneously
Make the finger-like formula electrode impedance that wire mark comes out is opposite to reduce, and the finger-like formula electrode that wire mark comes out is made to be imitated with higher power generation
Rate.
Fig. 4 is a schematic diagram, to illustrate the cross-section structure in Fig. 3 of the present invention at arrow.Fig. 4 is please referred to, by Fig. 3 arrows
The sectional view at place can be seen that multiple finger-like formula electrode pattern openings 26 are formed in emulsion layer 24, and multiple finger-like formula electrode figures
Each of case opening 26 is parallel with each of a plurality of warp 20.
Fig. 5 is a schematic diagram, to illustrate the wire jumper electrode for wire mark solar cell of other embodiments of the invention
Screen structure.Please refer to Fig. 5, in other embodiments of the present invention, can further utilize egative film contraposition, laser cutting contraposition or
In forming wire jumper electrode pattern opening 27 on the emulsion layer 24 of screen cloth 2, wire jumper is electric for one of ultraviolet photoetching circuit contraposition
Pole pattern openings 27 are interconnected with multiple finger-like formula electrode patterns opening 26, and wire jumper electrode pattern opening 27 is to be used for wire mark too
Wire jumper electrode in positive energy battery.Wire jumper electrode is act as, if its of multiple finger-like formula structure electrodes in solar cell
One of broken string when, can be connected by wire jumper electrode other channels (such as：Other finger-like formula structure electrodes) with collected current.
In the screen structure of wire jumper electrode for being traditionally used for wire mark solar cell, the wire jumper electrode in usual halftone
Pattern openings can be parallel with a plurality of weft, and the position of the two can be overlapped, thus, when ink is opened by wire jumper electrode pattern
When mouth, printing broken string can be easy to cause because of the influence of weft.However, can be seen that by Fig. 5 of the present invention, wire jumper electrode pattern is opened
Mouth 27 and a plurality of weft 22 are not parallel to each other, therefore when ink is electric through 27 wire mark wire jumper of multiple wire jumper electrode patterns opening
When pole, printing broken string is not easily caused during wire mark wire jumper electrode.
The screen cloth structure of the finger-like formula electrode for wire mark solar cell of the present invention can be also presented with other structures,
It now will be described in detail other kind of structure of the screen cloth structure of the finger-like formula electrode provided by the present invention for wire mark solar cell
Presentation mode.It is to be understood that in other kind of screen cloth structure, the emulsion layer that is formed on screen cloth and it is formed on emulsion layer
Multiple finger-like formula electrode patterns opening it is all identical as the structure shown in Fig. 3 and Fig. 4, therefore emphasis hereinafter is intended to illustrate it
He plants the structure of screen cloth, and will omit emulsion layer structure in Fig. 6-Fig. 9 and be illustrated with facilitating.
Fig. 6 is a schematic diagram, to illustrate the finger-like formula electricity for wire mark solar cell of second embodiment of the invention
The screen cloth structure of pole.Fig. 6 is please referred to, in second embodiment of the invention, is used for the finger-like formula electrode of wire mark solar cell
Screen cloth 5 include a plurality of warp 50 and a plurality of weft 52, each of a plurality of warp 50 is parallel to each other, a plurality of weft 52 each
A plurality of warp 50 is connected, as seen from Figure 5, each of a plurality of weft 52 has a first end point 521 and one second endpoint
523, each of a plurality of weft 52 connects at least two in a plurality of warp 50 by first end point 521 and the second endpoint 523
Warp 50, and each of a plurality of weft 52 and each angle d3, angle d4 for being formed of a plurality of warp 50 are on-right angle.It answers
It is appreciated that, in second embodiment of the invention, each of a plurality of weft 52 is two adjacent warps 50 of connection, but at this
In invention other embodiment, each of a plurality of weft 52 can connect arbitrary two warps 50 in screen cloth 5.
Fig. 6 is referred again to, the shape of a plurality of weft 52 is straight line (also referred to as oblique line), including upper left is tiltedly to the oblique line of bottom right
And upper right is tiltedly to the oblique line of lower-left, to allow a plurality of weft 52 to form a cross network structure in screen cloth 5.About angle d3 and folder
Angle d4, specifically, angle d3 and angle d4 is any value in 0 to 89 degree, preferably, angle d3, angle d4 are 22.5
It spends, 30 degree, one of 45 degree, and angle d3 and angle d4 can be identical angle.It is to be understood that above-mentioned about a plurality of
The oblique line directions of weft 52 are for illustrating that the oblique line in Fig. 5 of the present invention, above-mentioned oblique line directions can not be used to limit the present invention
Screen cloth structure.
Fig. 7 is a schematic diagram, to illustrate the finger-like formula electricity for wire mark solar cell of third embodiment of the invention
The screen cloth structure of pole.Fig. 7 is please referred to, in third embodiment of the invention, is used for the finger-like formula electrode of wire mark solar cell
Screen cloth 6 include a plurality of warp 60 and a plurality of weft 62, each of a plurality of warp 60 is parallel to each other, a plurality of weft 62 each
A plurality of warp 60 is connected with geometric figure structure, as seen from Figure 6, each of a plurality of weft 62 has a first end point 621
With one second endpoint 623, each of a plurality of weft 62 connects a plurality of warp 60 by first end point 621 and the second endpoint 623
In at least two warps 60, and angle d5, angle that each of each of a plurality of weft 62 and a plurality of warp 60 are formed
D6 is on-right angle.It is to be understood that in third embodiment of the invention, each of a plurality of weft 62 is adjacent two of connection
Warp 60, but in other embodiments of the present invention, each of a plurality of weft 62 can connect arbitrary two warps in screen cloth 6
60。
Fig. 7 is referred again to, the shape of a plurality of weft 62 is straight line (also referred to as oblique line), including upper left is tiltedly to the oblique line of bottom right
And upper right is tiltedly to the oblique line of lower-left, to allow a plurality of weft 62 that staggering arrangement is presented in a plurality of warp 60 of screen cloth 6.About
Angle d5 and angle d6, specifically, angle d5 and angle d6 is any value in 0 to 89 degree, preferably, angle d5, folder
Angle d6 is 22.5 degree, 30 degree, one of 45 degree, and angle d5 and angle d6 can be identical angle.On it is to be understood that
It is for illustrating that the oblique line in Fig. 6 of the present invention, above-mentioned oblique line directions can not be used for state about the oblique line directions of a plurality of weft 62
Limit the screen cloth structure of the present invention.
Fig. 8 is a schematic diagram, to illustrate the finger-like formula electricity for wire mark solar cell of fourth embodiment of the invention
The screen cloth structure of pole.Fig. 8 is please referred to, in fourth embodiment of the invention, is used for the finger-like formula electrode of wire mark solar cell
Screen cloth 7 include a plurality of warp 70 and a plurality of weft 72, each of a plurality of warp 70 is parallel to each other, a plurality of weft 72 each
Including first end point 721 and the second endpoint 723, each of a plurality of weft 72 connects by first end point 721 and the second endpoint 723
Connect a plurality of warp 70.As seen from Figure 7, the shape of each of a plurality of weft 72 is circular arc line, and shape is a plurality of of circular arc line
Each of weft 72 includes the tangent line 725 positioned at first end point 721, or positioned at the tangent line 727 of the second endpoint 723, and tangent line
725 and each of tangent line 727 and a plurality of warp 70 formation angle d7, and angle d7 is on-right angle.
Fig. 8 is referred again to, about angle d7, specifically, angle d7 is any value in 0 to 89 degree, preferably, angle
D7 is 22.5 degree, 30 degree, one of 45 degree.It is to be understood that although Fig. 7 is to show circle-arc profile protruding upward,
But a plurality of weft 72 can be also arranged to downwardly projecting circle-arc profile.
Fig. 9 is a schematic diagram, to illustrate the finger-like formula electricity for wire mark solar cell of fifth embodiment of the invention
The screen cloth structure of pole.Fig. 9 is please referred to, in fifth embodiment of the invention, is used for the finger-like formula electrode of wire mark solar cell
Screen cloth 8 include a plurality of warp 80 and a plurality of weft 82, each of a plurality of warp 80 is parallel to each other, a plurality of weft 82 each
Including first end point 821 and the second endpoint 823, each of a plurality of weft 82 connects by first end point 821 and the second endpoint 823
Connect a plurality of warp 80.As seen from Figure 8, the shape of each of a plurality of weft 82 is circular arc line, and shape is a plurality of of circular arc line
Each of weft 82 includes the tangent line 825 positioned at first end point 821, or positioned at the tangent line 827 of the second endpoint 823, and tangent line
825 and each of tangent line 827 and a plurality of warp 80 formation angle d8, and angle d8 is on-right angle.
Fig. 9 is referred again to, a plurality of weft 82 is circle-arc profile protruding upward and downwardly projecting circle-arc profile, is worth
One is mentioned that, about angle d8, whether circle-arc profile protruding upward or downwardly projecting circle-arc profile, it is specific and
Speech, angle d8 is any value in 0 to 89 degree, preferably, angle d8 is 22.5 degree, 30 degree, one of 45 degree.
It, all can be by utilizing electroforming on a metal plate in addition, the forming method of the screen cloth structure shown in Fig. 6 to Fig. 9
Manufacturing method thereof, etch process method or laser cutting manufacturing method thereof are produced including a plurality of weft in oblique line or arc-shaped structure
Screen cloth.
The present invention also provides a kind of production method of the screen structure of the finger-like formula electrode for wire mark solar cell, figure
10 be a flow chart, to illustrate that the screen structure of the finger-like formula electrode for wire mark solar cell of the present invention makes stream
Journey.Please refer to Figure 10, screen structure production process of the invention includes step S901-S909, first in step S901, be
A plurality of warp is formed on one metal plate, and each of the warp is parallel to each other.It is in the gold later in step S903
Belong to and form a plurality of weft on tablet, and each described warp of connection of the weft is set.
Then, it is each angle formed of each and the warp of the setting weft in step S905
For on-right angle, and a screen cloth is formed by the warp and the weft.Wherein, each of the weft has a first end
Point and one second endpoint, each of the weft connect in the warp at least by the first end point and second endpoint
Two warps.The screen cloth can enter step S907 after completing.In step s 907, it is to be coated on the screen cloth and form one
Emulsion layer.It is that egative film contraposition, laser cutting contraposition or ultraviolet photoetching line are utilized on the emulsion layer finally in step S909
One of road contraposition forms multiple finger-like formula electrode pattern openings.Wherein, the finger-like formula electrode pattern opening is each
It is a to be set in the interval that arbitrary two adjacent warps are formed.
In addition, in the production method of the screen structure of the finger-like formula electrode for wire mark solar cell of the present invention,
Further comprise forming the step that wire jumper electrode pattern is opened on the emulsion layer, the step can before step S909 or it
After implement.Wherein, wire jumper electrode pattern opening is interconnected with finger-like formula electrode pattern opening, and the wire jumper electrode figure
Case opening is not parallel to each other with the weft.
It is noted that in above-mentioned production method, each of the weft can be shaped to directly
Line, and it is any value in 0 to 89 degree that the angle, which is arranged, preferably, the angle is 22.5 degree, 30 degree, 45 degree wherein it
One.
Furthermore in above-mentioned production method, also each of the weft can be shaped to circular arc line, the circle
Each of camber line includes the tangent line positioned at the first end point or second endpoint, and each of the tangent line and the warp
The angle is formed, and the angle is any value in 0 to 89 degree, preferably, the angle is 22.5 degree, 30 degree, its of 45 degree
One of.
In addition, in the above-mentioned production method of the present invention, cut using electroforming manufacturing method thereof, etch process method or laser
It cuts manufacturing method thereof and produces the screen cloth for including linear or circular arc wire shaped a plurality of weft.
As shown in the above, the present invention successfully provides a kind of net of the finger-like formula electrode for wire mark solar cell
Plate structure and preparation method thereof, a plurality of weft in screen structure of the present invention is more to connect with rectilinear form or circular arc wire shaped
Warp, and angle that each of each of a plurality of weft and a plurality of warp are formed is on-right angle, thus, a plurality of latitude
Line is not mutually perpendicular with a plurality of warp.Therefore, when multiple finger-like formula electrode patterns opening in halftone is arranged to and more
Warp is parallel, when ink penetrates multiple patterns of openings wire mark finger-like formula electrodes, ink by the part of a plurality of weft its by
Resistance from a plurality of weft can be smaller, so that ink is easier lower ink, while the finger-like formula electrode impedance for making wire mark come out is opposite
Reduce, and the finger-like formula electrode for making wire mark come out has higher generating efficiency.
When illustrating the representative examples of the present invention, this specification has proposed this method and/or journey of the operation present invention
The step of sequence is as a particular order.But in a way this method or program can't rely on it is presented herein specific
The step of sequence, this method or program should not necessarily be limited by the specific sequence of steps.As those skilled in the art can
Understand, other sequence of steps are also feasible.Therefore, the step of particular order proposed in the present specification, is not construed as
Limitation for claim.In addition, should not necessarily be limited by about the method for the present invention and/or the right of program
The efficiency of step in institute's proposition sequence, those skilled in the art can immediately appreciate that the sequence can change, and be still maintained at
In spirit and scope of the present invention.
Those skilled in the art, which should be understanding, to be changed above-mentioned every example, and will not be deviating from its broad sense
Inventive concepts.It is therefore to be understood that the particular example that the present invention is not limited to originally take off, and be to cover ownership such as each right of rear bearing
Modification in spirit and scope of the present invention defined in it is required that.
Claims (12)
1. a kind of screen structure is used for the finger-like formula electrode of wire mark solar cell, which is characterized in that including：
One screen cloth, the screen cloth are made of a plurality of warp and a plurality of weft, and each of the warp is parallel to each other, the weft
Each connect described warp；
One emulsion layer is coated with and is formed on the screen cloth；And
Multiple finger-like formula electrode pattern openings, the finger-like formula electrode pattern opening is formed on the emulsion layer, and the finger-like
Each of formula electrode pattern opening is set in the interval that arbitrary two adjacent warps are formed；
Wherein, each of the weft has a first end point and one second endpoint, the weft each by this
End point and second endpoint connect at least two warps in the warp, and each of the weft and the warp
Each angle formed is on-right angle.
2. screen structure according to claim 1, which is characterized in that the shape of each of the weft is straight line, and
The angle is any value in 0 to 89 degree.
3. screen structure according to claim 2, which is characterized in that the angle is 22.5 degree, 30 degree, 45 degree wherein it
One.
4. screen structure according to claim 1, which is characterized in that the shape of each of the weft is circular arc line,
The angle formed between each of each of the weft and the warp be the circular arc line each in this first
One tangent line of endpoint or second endpoint is formed by angle with the corresponding warp in the warp, which is in 0 to 89 degree
Any value.
5. the screen structure according to claim 4, which is characterized in that the angle is 22.5 degree, 30 degree, 45 degree wherein
One of.
6. screen structure according to claim 1, which is characterized in that further comprise that a wire jumper electrode pattern is open, it should
Wire jumper electrode pattern opening is formed on the emulsion layer, and wire jumper electrode pattern opening and finger-like formula electrode pattern opening are mutual
It is connected, and wire jumper electrode pattern opening is not parallel to each other with the weft.
7. a kind of production method of the screen structure of finger-like formula electrode for wire mark solar cell, which is characterized in that including
Following steps：
A plurality of warp is formed on a metal plate, each of the warp is parallel to each other；
Form a plurality of weft on the metal plate, each of the weft connects described warp, wherein the weft it is every
One there is a first end point and one second endpoint, each of the weft to be connected by the first end point and second endpoint
At least two warps in the warp；
Each angle formed that each and the warp of the weft is arranged is on-right angle, and by the warp and
The weft forms a screen cloth；
It is coated on the screen cloth and forms an emulsion layer；And
It forms multiple finger-like formula electrode patterns to be opened on the emulsion layer, wherein each of finger-like formula electrode pattern opening
It is set in the interval that arbitrary two adjacent warps are formed.
8. the production method of the screen structure of the finger-like formula electrode according to claim 7 for wire mark solar cell,
It is characterized in that, the shape of each that the weft is arranged is straight line, and it is any number in 0 to 89 degree that the angle, which is arranged,
Value.
9. the production method of the screen structure of the finger-like formula electrode according to claim 8 for wire mark solar cell,
It is characterized in that, the angle is 22.5 degree, 30 degree, one of 45 degree.
10. the production method of the screen structure of the finger-like formula electrode according to claim 7 for wire mark solar cell,
It is characterized in that, the shape of each that the weft is arranged is circular arc line, each of the weft is every with the warp
The angle formed between one be the circular arc line each in a tangent line of the first end point or second endpoint with it is described
Correspondence warp in warp is formed by angle, which is any value in 0 to 89 degree.
11. the making side of the screen structure of the finger-like formula electrode according to claim 10 for wire mark solar cell
Method, which is characterized in that the angle is 22.5 degree, 30 degree, one of 45 degree.
12. the production method of the screen structure of the finger-like formula electrode according to claim 7 for wire mark solar cell,
It is characterized in that, further comprising forming the step that wire jumper electrode pattern is opened on the emulsion layer, wherein the wire jumper electrode figure
Case is open to be interconnected with finger-like formula electrode pattern opening, and wire jumper electrode pattern opening is mutually uneven with the weft
Row.
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| CN201710022441.5A CN108297533B (en) | 2017-01-12 | 2017-01-12 | The screen structure and preparation method thereof of finger-like formula electrode for wire mark solar battery |
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| CN108297533B (en) | 2019-08-06 |
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