CN206697494U - A kind of solar panel - Google Patents
A kind of solar panel Download PDFInfo
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- CN206697494U CN206697494U CN201720300039.4U CN201720300039U CN206697494U CN 206697494 U CN206697494 U CN 206697494U CN 201720300039 U CN201720300039 U CN 201720300039U CN 206697494 U CN206697494 U CN 206697494U
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- type layer
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- fiberboard
- solar panel
- utility
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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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Abstract
The utility model provides a kind of solar panel, and the solar panel includes Top electrode degree layer, N-type layer, PN junction, P-type layer, bottom electrode degree layer and the fiberboard being cascading from top to bottom, and fiberboard top and bottom set copper mold structure respectively.The use of various harmful chemicals articles for use when the utility model eliminates traditional big sun energy cell panel production, while because forming N-type layer using sprayed silicon solution on fiberboard, the uses of a large amount of reduction silicon wafers, cost can be greatly reduced.
Description
Technical field
The utility model solar panel technology field, more particularly to a kind of solar panel.
Background technology
At present, tradition now solar cell in production using monocrystalline silicon piece as substrate, it is big to silicon materials dosage, and
And chemicals largely is used in production process, Huan Base-on-environment are influenceed, when solar panel generates electricity, only shining upon to send out
Electricity, solar panel can only be put in face of solar water safety, take big face journey soil, because unit area generating efficiency lowly caused by
Many equipment can not use this clean energy resource of solar energy.
Traditional solar panels production procedure is as follows：
1st, silicon chip is cut, and material prepares：
Industry makes the single crystal silicon material used in silion cell, typically uses the solar-grade silicon single crystal rod of crucible vertical pulling legal system,
Original is shaped as cylinder, is then cut into square silicon wafer (or polycrystalline square silicon wafer), and the length of side of silicon chip is generally 10~
15cm, thickness about 200~350um, the Ω .cm of resistivity about 1 p-type (global energy-conserving and environment-protective net boron-doping).
2nd, damaging layer is removed：
Silicon chip can produce substantial amounts of surface defect in cutting process, and this will produce two problems, the first quality on surface
Poor, these surface defects can cause fragment to increase in battery manufacturing process in addition.Therefore cutting damage layer is removed, one
As use alkali or acid corrosion, the thickness about 10um of corrosion.
3rd, making herbs into wool：Making herbs into wool, it is exactly that the surface of the raw material silicon chip of relative smooth is made its convex-concave not by acid or caustic corrosion
It is flat, become coarse, form diffusing reflection, reduce direct projection to the sun loss of energy of silicon chip surface.Typically adopted for monocrystalline silicon
Corroded with the method for NaOH plus alcohol, using the anisotropic etch of monocrystalline silicon, countless pyramid structures, alkali lye are formed on surface
About 80 degree of temperature, concentration about 1~2%, etching time about 15 minutes.For polycrystalline, typically corroded using acid system.
4th, diffusion：
The purpose of diffusion is to form PN junction.N-type doping is generally done using phosphorus.Because solid-state diffusion needs very high temperature
Degree, thus before diffusion silicon chip surface it is clean extremely important, it is desirable to silicon chip will be cleaned after making herbs into wool, i.e., neutralized with acid
The alkali residual and metal impurities of silicon chip surface.
5th, etching edge, cleaning：
In diffusion process, diffusion layer is also form in the periphery surface of silicon chip.Periphery diffusion layer makes the upper/lower electrode of battery
Form short-circuited conducting sleeve, it is necessary to remove it.Any small partial short-circuit on periphery be present all can decline cell parallel resistance, with
Extremely turn into waste product.At present, industrialized production plasma dry corrodes, by fluorine and oxygen alternately to silicon under the conditions of glow discharge
Effect, removes the periphery containing diffusion layer.
The purpose cleaned after diffusion is to remove the phosphorosilicate glass formed in diffusion process.
6th, antireflection layer is deposited：
The purpose of deposition antireflection layer is to reduce surface reflection, increase refractive index.PECVD deposit SiN are widely used, by
When PECVD deposits SiN, SiN is not grown just as antireflective coating, while generates substantial amounts of atomic hydrogen, these hydrogen atoms
There can be the double action of surface passivation and body passivation to polysilicon chip, available for producing in enormous quantities.
7th, silk-screen printing upper/lower electrode：
The preparation of electrode is a most important step in solar cell preparation process, and it not only determines launch site
Structure, and determine battery series resistance and battery surface by plated area.Earliest using vacuum evaporation or
Electroless plating techniques, and generally use silk screen print method now, i.e., by special printing machine and masterplate by silver paste aluminium paste (silver-colored aluminium
Slurry) the positive back side of solar cell is printed on, to form positive and negative electrode lead.
8th, burn altogether and form metal contact：
Crystal-silicon solar cell will could be formed well by type metal slurry three times, traditional handicraft double sintering
Carry metal electrode Ohmic contact, co-firing technology only needs Ohmic contact that is once sintered, while forming upper/lower electrode.In the sun
In cell silk screen printing electrode fabrication, generally use chain-type sintering furnace carries out Fast Sintering.
9th, cell slice test：
The cell piece of completion is sorted out by test stepping.
But various harmful chemicals articles for use have been used in traditional traditional solar panels production, such as in making herbs into wool link,
Generally use chemicals caustic solution passes through acid or alkali to make, that is, the surface of the raw material silicon chip of relative smooth
Corrosion, makes its rough and uneven in surface, becomes coarse, forms diffusing reflection, reduces direct projection to the sun loss of energy of silicon chip surface.For list
It is general for crystal silicon to add the method for alcohol to corrode using NaOH, using the anisotropic etch of monocrystalline silicon, formed on surface countless
Pyramid structure, about 80 degree of the temperature of alkali lye, concentration about 1~2%, etching time about 15 minutes.For polycrystalline, typically adopt
Corroded with acid system, due to the use of various harmful chemicals articles for use, produced so as to be unable to reach without discharge, material can not be saved, together
The conversion efficiency of area is more low.
Therefore, the use of harmful chemicals articles for use how is reduced, reaches and is generated without discharge, improving the conversion efficiency of same area is
Urgent problem to be solved.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of solar panel, it is intended to
Solve to produce without discharge so as to be unable to reach due to the use of various harmful chemicals articles for use in traditional solar panels production,
And material can not be saved, with the more low technical problem of conversion efficiency of area.
The utility model, which is achieved in that, provides a kind of solar panel, including stacks gradually set from top to bottom
Top electrode degree layer, N-type layer, PN junction, P-type layer, bottom electrode degree layer and the fiberboard put, the fiberboard top and bottom set copper respectively
Mode structure.
Further, the PN junction is to be diffused knot processed by using laser or plasma to form.
Further, the Top electrode degree layer is that silk-screened conductive material is printed on into the N-type by using silk-screen printing
On layer, and formed through oversintering.
Further, the solar panel Thickness ness is 0.1~0.3mm.
Solar panel provided by the utility model, it includes Top electrode degree layer, the N being cascading from top to bottom
Type layer, PN junction, P-type layer, bottom electrode degree layer and fiberboard, the fiberboard top and bottom set copper mold structure, solar-electricity respectively
Pond plate is using fiberboard as base material, and the top and bottom of fiberboard are respectively arranged with copper mold structure, and copper is set respectively in top and bottom
Bottom electrode degree layer is formed above the fiberboard of mode structure；Addition is sprayed on the fiberboard formed with bottom electrode degree layer has conduction molten
The silicon materials solution of agent, P-type layer is formed by heat drying；After the P-type layer is formed, N-type material is sprayed in the P-type layer
Expect solution, N-type layer is formed after drying；System knot is diffused between the P-type layer and the N-type layer, so as in the P
PN junction is formed between type layer and the N-type layer, has conduction molten due to spraying addition on the fiberboard formed with bottom electrode degree layer
The silicon materials solution of agent, P-type layer is formed by heat drying so that fiberboard is occurred matte in reacting furnace, and using sharp
Light or plasma treatment, which are diffused, makes knot, and various harmful chemicals articles for use makes when eliminating traditional big sun energy cell panel production
With, efficiently solve use of the traditional solar panels due to various harmful chemicals articles for use, so as to be unable to reach without discharge give birth to
Production, and material can not be saved, with the more low technical problem of conversion efficiency of area.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below by the required accompanying drawing used in embodiment
It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation for the solar panel that the embodiment of the utility model one provides.
Fig. 2 is the structural representation of its fiberboard of the solar panel of Fig. 1 offers.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model solves are more clearly understood, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example only to explain the utility model, is not used to limit the utility model.
As depicted in figs. 1 and 2, the utility model embodiment provide a kind of solar panel, including from top to bottom according to
Secondary the Top electrode degree layer 1 being stacked, N-type layer 2, PN junction 3, P-type layer 4, bottom electrode degree layer 5 and fiberboard 6, the fiberboard 6
Top and bottom set copper mold structure 61 respectively.
Further, the PN junction 3 is to be diffused knot processed by using laser or plasma to form, and is passed so as to eliminate
The use of various harmful chemicals articles for use, reaches and is produced without discharge when the big sun energy cell panel of system produces.
It should be noted that in the present embodiment, the top and bottom of the fiberboard 6 set copper mold structure 61 respectively, due to copper
Mode structure 61 is the stock for making circuit board, in this manner it is achieved that being used on the fiberboard 6 for being provided with copper mold structure 61
Board production technique produces bottom electrode degree layer 5, avoids the silicon chip cut ring in traditional solar panels manufacture craft
Section, and silicon chip is cutting process can produce substantial amounts of surface defect the problem of.
It should be noted that in the present embodiment, have due to spraying addition on the fiberboard 6 formed with bottom electrode degree layer 5
The silicon materials solution of conductive solvent, P-type layer 4 is formed by heat drying, after the P-type layer 4 formation, in the P-type layer 4
N type material solution is sprayed, N-type 2 is formed after drying, system knot is diffused between the P-type layer 4 and the N-type layer 2,
To form PN junction 3 between the P-type layer 4 and the N-type layer 2, and to form PN junction 3 this semiconductor structure will react
Stove carries out increasing temperature sintering, because having added conducting solution during spraying, molecule changes at high temperature in conducting solution, shape
Into matte, it is no longer necessary to as to be made in traditional handicraft using chemicals caustic solution, so as to eliminate traditional big positive energy
The use of various harmful chemicals articles for use when cell panel produces, reaches and is produced without discharge.
Further, the Top electrode degree layer 1 is that silk-screened conductive material is printed on into N-type layer 2 by using silk-screen printing
On, and formed through oversintering.
Further, the solar panel Thickness ness is 0.1~0.3mm, preferred thickness 0.1mm, it is described too
It is positive can cell panel it is thinner than regular solar plate, save material, and with area conversion efficiency more than 40%.
Solar panel provided by the utility model, its Top electrode degree layer 1 for including being cascading from top to bottom,
N-type layer 2, PN junction 3, P-type layer 4, bottom electrode degree layer 5 and fiberboard 6, the top and bottom of fiberboard 6 set copper mold structure 61 respectively,
Solar panel is for base material with fiberboard 6, and the top and bottom of fiberboard 6 are respectively arranged with copper mold structure 61, upper and lower
Face sets the fiberboard 6 of copper mold structure 61 to form bottom electrode degree layer 5 above respectively；In the fiberboard 6 formed with bottom electrode degree layer 5
Upper spraying adds the silicon materials solution for having conductive solvent, and P-type layer 4 is formed by heat drying；After the P-type layer 4 formation,
N type material solution is sprayed in the P-type layer 4, N-type layer 2 is formed after drying；Between the P-type layer 4 and the N-type layer 2
System knot is diffused, to form PN junction 3 between the P-type layer 4 and the N-type layer 2, due to formed with bottom electrode degree layer
Spraying adds the silicon materials solution for having conductive solvent on 5 fiberboard 6, forms P-type layer 4 by heat drying so that make fiber
There is matte in reacting furnace in plate 6, and is diffused system knot using laser or plasma treatment, and eliminating traditional big sun can battery
The use of various harmful chemicals articles for use, efficiently solves traditional solar panels due to various harmful chemicals articles for use when plate produces
Use, produced so as to be unable to reach without discharge, and material can not be saved, the more low technology of conversion efficiency with area is asked
Topic.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (4)
- A kind of 1. solar panel, it is characterised in that including be cascading from top to bottom Top electrode degree layer, N-type layer, PN junction, P-type layer, bottom electrode degree layer and fiberboard, the fiberboard top and bottom set copper mold structure respectively.
- A kind of 2. solar panel according to claim 1, it is characterised in that the PN junction be by using laser or Plasma is diffused knot processed and formed.
- A kind of 3. solar panel according to claim 1, it is characterised in that the Top electrode degree layer be by using Silk-screened conductive material is printed in the N-type layer, and formed through oversintering by silk-screen printing.
- A kind of 4. solar panel according to claim 1, it is characterised in that the solar panel Thickness ness For 0.1~0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300039.4U CN206697494U (en) | 2017-03-24 | 2017-03-24 | A kind of solar panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300039.4U CN206697494U (en) | 2017-03-24 | 2017-03-24 | A kind of solar panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206697494U true CN206697494U (en) | 2017-12-01 |
Family
ID=60444136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720300039.4U Expired - Fee Related CN206697494U (en) | 2017-03-24 | 2017-03-24 | A kind of solar panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206697494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134501A (en) * | 2017-03-24 | 2017-09-05 | 张模辉 | A kind of solar panel and its manufacture craft |
-
2017
- 2017-03-24 CN CN201720300039.4U patent/CN206697494U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134501A (en) * | 2017-03-24 | 2017-09-05 | 张模辉 | A kind of solar panel and its manufacture craft |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20180324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |