CN104402234A - Glass powder for crystalline silicon solar cells' front silver paste and preparation method thereof - Google Patents
Glass powder for crystalline silicon solar cells' front silver paste and preparation method thereof Download PDFInfo
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- CN104402234A CN104402234A CN201410637730.2A CN201410637730A CN104402234A CN 104402234 A CN104402234 A CN 104402234A CN 201410637730 A CN201410637730 A CN 201410637730A CN 104402234 A CN104402234 A CN 104402234A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
Abstract
The invention discloses a glass powder for crystalline silicon solar cells' front silver paste and a preparation method thereof. The glass powder comprises the following ingredients, by weight, 10-20 parts of corn starch, 6-10 parts of aluminum oxide, 2-6 parts of asbestos wool, 0.1-0.8 part of lime putty, 0.1-0.5 part of sodium napthionate, 1.8-3.6 parts of alkaline earth metal oxide, 1-3 parts of zinc oxide, 2-5 parts of silicon dioxide, 3-13 parts of carbonate, 8-15 parts of sulfate and 1-4 parts of lead oxide. The glass powder has low melting point and glass-transition temperature, has good wellability for a Si substrate and silver powder in a high-temperature molten state, can penetrate an antireflection film to form good ohmic contact and can be applied in solar cells to obviously enhance photoelectric conversion efficiency of solar cells.
Description
Technical field
The invention belongs to solar cell material technical field, be specifically related to a kind of crystal silicon solar energy battery front side silver paste glass powder and preparation method thereof.
Background technology
The energy of shortage has had a strong impact on the life of people and the development of restriction society.Abundant sun power is important clean energy, is the energy that inexhaustible, nexhaustible, pollution-free, cheap, the mankind can freely utilize.After the first oil crisis, various countries competitively carry out the applied research of the clean and renewable energy source such as sun power, water energy, wind energy, and especially the applied research of sun power is the most extensive.
Sun power as a kind of green energy resource to environment without any nonstaining property, and its source is simple, can be described as in the existence time limit of the mankind that it is inexhaustible.Sun power is not only the disposable energy, or clean energy, its aboundresources, ubiquity, without the need to transporting, also can freely using, the most important thing is environment without any pollution.Solar cell is also because the singularity of sun power has the advantage not available for other generation modes many: by region restriction, not consume fuel, scale is changeable, handiness is large, pollution-free, noiselessness, safe and reliable, the construction period is short, safeguard simply, have most the possibility of large-scale application.So a lot of expert goes solar energy to exploitation as the alternative energy, wish that the sun can be brought benefit to the mankind.Nowadays used sun power have greatly by solar cell change get.Because solar cell has induction to light, can be electric energy the transform light energy being radiated at its surface.At present, under the effort of relevant expert, solar cell is own through having moved towards commercialization and industrialization.
Glass powder is as high temperature sticky energy phase, and its softening temperature determines sintering peak temperature.The wettability burn-back intensity to rete of glass powder to silicon substrate and metal-powder is very helpful, and good wettability is good, and the dry of rete connects intensity just height, and vice versa.The thermal expansivity of the low flame glass of electric slurry is a kind of matching parameter, crosses senior general and causes crystalline silicon battery plate wing Qu Yanchong, general requirement thermal expansivity and osmanthus substrate close, preferably identical.Thermal expansivity does not mate, and the cell piece performance obtained after sintering will have very large thermal stresses, and cell piece has larger thermal shocking during operation, and large thermal stresses likely causes battery leafing until lost efficacy.Glass generates liquid phase as high temperature bond and moves in sintering process, can carry and carry out moving and soaking with coated metal particle, and then facilitate metal particles sinter densification in this process.Silver electrode silk screen printing charging used in crystal silicon solar batteries front is for main body filler with superfine high-purity silver powder, arrange in pairs or groups formulated with a certain proportion of glass powder, organic carrier, in the many factors affecting solar cell properties, glass powder is a crucial factor, it directly affects the electric property of solar cell, especially affect its series resistance (Rs), and then have influence on the photoelectric transformation efficiency of battery.This is because can series resistance size depends primarily on front side silver paste form good ohmic contact with silicon substrate, and glass powder plays crucial effect in ohmic contact.Up to the present, also less to the research of the glass powder that applicable solar cell front side silver fills both at home and abroad, and inadequate system is with deep.
Summary of the invention
The object of this invention is to provide a kind of crystal silicon solar energy battery front side silver paste glass powder and preparation method thereof, this glass powder has good wetting property to silicon substrate and silver powder under having low fusing point and second-order transition temperature, high temperature molten state, can penetrate antireflection film layer forms good ohmic contact, is applied to the photoelectric transformation efficiency that can significantly improve solar cell in solar cell.
To achieve these goals, the technique means that the present invention adopts is:
A kind of crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 10 ~ 20 parts, aluminium sesquioxide 6 ~ 10 parts, asbestos wool 2 ~ 6 parts, lime putty 0.1 ~ 0.8 part, sodium napthionate 0.1 ~ 0.5 part, alkaline earth metal oxide 1.8 ~ 3.6 parts, 1 ~ 3 part, zinc oxide, silicon-dioxide 2 ~ 5 parts, 3 ~ 13 parts, carbonate, 8 ~ 15 parts, vitriol, 1 ~ 4 part, plumbous oxide.
Described alkaline earth metal oxide is beryllium oxide.
Described carbonate is salt of wormwood.
Described vitriol is magnesium sulfate.
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 12 ~ 18 parts, aluminium sesquioxide 7 ~ 9 parts, asbestos wool 3 ~ 5 parts, lime putty 0.3 ~ 0.6 part, sodium napthionate 0.2 ~ 0.4 part, alkaline earth metal oxide 2 ~ 3 parts, 1 ~ 3 part, zinc oxide, silicon-dioxide 3 ~ 4 parts, 5 ~ 8 parts, carbonate, 10 ~ 12 parts, vitriol, 2 ~ 3 parts, plumbous oxide.
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 16 parts, aluminium sesquioxide 8 parts, asbestos wool 4 parts, lime putty 0.5 part, sodium napthionate 0.3 part, alkaline earth metal oxide 2.3 parts, 1.6 parts, zinc oxide, silicon-dioxide 3.5 parts, 6 parts, carbonate, 11 parts, vitriol, 2.5 parts, plumbous oxide.
The preparation method of described crystal silicon solar energy battery front side silver paste glass powder, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 320 ~ 380 DEG C, stir 20 ~ 40h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 2 ~ 6h under 300 ~ 340 DEG C of conditions, be then warming up to 1100 ~ 1350 DEG C, melting 1 ~ 3h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carries out ball milling, drying, sieve to obtain glass powder.
Be heated to 360 DEG C in step 1), stir 30h.
In step 3), ball milling is wet ball grinding, and Ball-milling Time is 10 ~ 16h, and drum's speed of rotation is 350 ~ 450rpm, and ball-milling medium and frit mass ratio are 0.5 ~ 1.8:1.
Sieve in step 3) as crossing 250 ~ 400 mesh sieves.
Beneficial effect: a kind of crystal silicon solar energy battery front side silver paste glass powder provided by the invention and preparation method thereof, this glass powder has good wetting property to silicon substrate and silver powder under having low fusing point and second-order transition temperature, high temperature molten state, can penetrate antireflection film layer forms good ohmic contact, is applied to the photoelectric transformation efficiency that can significantly improve solar cell in solar cell.
Embodiment
Embodiment 1
A kind of crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 10 parts, aluminium sesquioxide 6 parts, asbestos wool 2 parts, lime putty 0.1 part, sodium napthionate 0.1 part, beryllium oxide 1.8 parts, 1 part, zinc oxide, silicon-dioxide 2 parts, 3 parts, salt of wormwood, 8 parts, magnesium sulfate, 1 part, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
Embodiment 2
A kind of crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 20 parts, aluminium sesquioxide 10 parts, asbestos wool 6 parts, lime putty 0.8 part, sodium napthionate 0.5 part, beryllium oxide 3.6 parts, 3 parts, zinc oxide, silicon-dioxide 5 parts, 13 parts, salt of wormwood, 15 parts, magnesium sulfate, 4 parts, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
Embodiment 3
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 12 parts, aluminium sesquioxide 7 parts, asbestos wool 3 parts, lime putty 0.3 part, sodium napthionate 0.2 part, beryllium oxide 2 parts, 1 part, zinc oxide, silicon-dioxide 3 parts, 5 parts, salt of wormwood, 10 parts, magnesium sulfate, 2 parts, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
Embodiment 4
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 18 parts, aluminium sesquioxide 9 parts, asbestos wool 5 parts, lime putty 0.6 part, sodium napthionate 0.4 part, beryllium oxide 3 parts, 3 parts, zinc oxide, silicon-dioxide 4 parts, 8 parts, salt of wormwood, 12 parts, magnesium sulfate, 3 parts, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
Embodiment 5
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 14 parts, aluminium sesquioxide 7.5 parts, asbestos wool 3.3 parts, lime putty 0.42 part, sodium napthionate 0.28 part, beryllium oxide 2.3 parts, 1.9 parts, zinc oxide, silicon-dioxide 3.6 parts, 6.8 parts, salt of wormwood, 11 parts, magnesium sulfate, 2.4 parts, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
Embodiment 6
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 16 parts, aluminium sesquioxide 8 parts, asbestos wool 4 parts, lime putty 0.5 part, sodium napthionate 0.3 part, alkaline earth metal oxide 2.3 parts, 1.6 parts, zinc oxide, silicon-dioxide 3.5 parts, 6 parts, carbonate, 11 parts, vitriol, 2.5 parts, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
Embodiment 7
Crystal silicon solar energy battery front side silver paste glass powder, component and each constituent mass number as follows: W-Gum 13 parts, aluminium sesquioxide 8.4 parts, asbestos wool 3.6 parts, lime putty 0.7 part, sodium napthionate 0.4 part, alkaline earth metal oxide 2.9 parts, 2.2 parts, zinc oxide, silicon-dioxide 2.6 parts, 11 parts, carbonate, 11 parts, vitriol, 2 parts, plumbous oxide.
Preparation method, comprises the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 360 DEG C, stir 30h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 4h under 320 DEG C of conditions, be then warming up to 1200 DEG C, melting 2h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carry out ball milling, drying, cross 300 mesh sieves obtain glass powder.Ball milling is wet ball grinding, and Ball-milling Time is 12h, and drum's speed of rotation is 380rpm, and ball-milling medium and frit mass ratio are 1.2:1.
The crystal silicon solar energy battery front side silver paste glass powder prepared in embodiment 1 ~ 7 is done DSC curve, obtains second-order transition temperature; Be applied to the average efficiency of conversion that monocrystaline silicon solar cell sheet obtains, the results are shown in Table 1.
Table 1:
| Photoelectric transformation efficiency | Second-order transition temperature | |
| Embodiment 1 | 16.71% | 421 |
| Embodiment 2 | 15.72% | 435 |
| Embodiment 3 | 19.28% | 378 |
| Embodiment 4 | 20.35% | 386 |
| Embodiment 5 | 27.54% | 365 |
| Embodiment 6 | 30.55% | 360 |
| Embodiment 7 | 22.61% | 419 |
Claims (10)
1. a crystal silicon solar energy battery front side silver paste glass powder, it is characterized in that component and each constituent mass number as follows: W-Gum 10 ~ 20 parts, aluminium sesquioxide 6 ~ 10 parts, asbestos wool 2 ~ 6 parts, lime putty 0.1 ~ 0.8 part, sodium napthionate 0.1 ~ 0.5 part, alkaline earth metal oxide 1.8 ~ 3.6 parts, 1 ~ 3 part, zinc oxide, silicon-dioxide 2 ~ 5 parts, 3 ~ 13 parts, carbonate, 8 ~ 15 parts, vitriol, 1 ~ 4 part, plumbous oxide.
2. crystal silicon solar energy battery front side silver paste glass powder according to claim 1, is characterized in that: described alkaline earth metal oxide is beryllium oxide.
3. crystal silicon solar energy battery front side silver paste glass powder according to claim 1, is characterized in that: described carbonate is salt of wormwood.
4. crystal silicon solar energy battery front side silver paste glass powder according to claim 1, is characterized in that: described vitriol is magnesium sulfate.
5. crystal silicon solar energy battery front side silver paste glass powder according to claim 1, it is characterized in that component and each constituent mass number as follows: W-Gum 12 ~ 18 parts, aluminium sesquioxide 7 ~ 9 parts, asbestos wool 3 ~ 5 parts, lime putty 0.3 ~ 0.6 part, sodium napthionate 0.2 ~ 0.4 part, alkaline earth metal oxide 2 ~ 3 parts, 1 ~ 3 part, zinc oxide, silicon-dioxide 3 ~ 4 parts, 5 ~ 8 parts, carbonate, 10 ~ 12 parts, vitriol, 2 ~ 3 parts, plumbous oxide.
6. crystal silicon solar energy battery front side silver paste glass powder according to claim 5, it is characterized in that component and each constituent mass number as follows: W-Gum 16 parts, aluminium sesquioxide 8 parts, asbestos wool 4 parts, lime putty 0.5 part, sodium napthionate 0.3 part, alkaline earth metal oxide 2.3 parts, 1.6 parts, zinc oxide, silicon-dioxide 3.5 parts, 6 parts, carbonate, 11 parts, vitriol, 2.5 parts, plumbous oxide.
7. the preparation method of crystal silicon solar energy battery front side silver paste glass powder described in claim 1, is characterized in that comprising the steps:
1) aluminium sesquioxide, alkaline earth metal oxide, zinc oxide, silicon-dioxide, carbonate, vitriol and plumbous oxide are mixed in proportion, are placed in crucible, be heated to 320 ~ 380 DEG C, stir 20 ~ 40h;
2) leftover materials are added in proportion in step 1) crucible, be incubated 2 ~ 6h under 300 ~ 340 DEG C of conditions, be then warming up to 1100 ~ 1350 DEG C, melting 1 ~ 3h, then directly pour quenching in deionized water into, obtain frit;
3) by step 2) frit carries out ball milling, drying, sieve to obtain glass powder.
8. the preparation method of crystal silicon solar energy battery front side silver paste glass powder according to claim 7, is characterized in that: be heated to 360 DEG C in step 1), stirs 30h.
9. the preparation method of crystal silicon solar energy battery front side silver paste glass powder according to claim 7, it is characterized in that: in step 3), ball milling is wet ball grinding, Ball-milling Time is 10 ~ 16h, and drum's speed of rotation is 350 ~ 450rpm, and ball-milling medium and frit mass ratio are 0.5 ~ 1.8:1.
10. the preparation method of crystal silicon solar energy battery front side silver paste glass powder according to claim 7, is characterized in that: sieve in step 3) as crossing 250 ~ 400 mesh sieves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410637730.2A CN104402234B (en) | 2014-11-13 | 2014-11-13 | Crystal silicon solar energy battery front side silver paste glass dust and preparation method thereof |
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| CN201410637730.2A CN104402234B (en) | 2014-11-13 | 2014-11-13 | Crystal silicon solar energy battery front side silver paste glass dust and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251935A (en) * | 2016-09-27 | 2016-12-21 | 北京市合众创能光电技术有限公司 | Crystal silicon solar batteries front gate line conductive silver paste and preparation method thereof |
| CN115724589A (en) * | 2022-11-29 | 2023-03-03 | 西安创联电气科技（集团）有限责任公司 | Sealing glass powder for radio frequency connector and preparation and sealing method thereof |
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| CN101630695A (en) * | 2009-08-05 | 2010-01-20 | 贵研铂业股份有限公司 | Lead-free cadmium-free electrode slurry for crystalline silicon solar battery and preparation method thereof |
| JP2011207629A (en) * | 2010-03-28 | 2011-10-20 | Central Glass Co Ltd | Low-melting-point glass composition, and electrically conductive paste material using the same |
| CN102229469A (en) * | 2011-07-20 | 2011-11-02 | 珠海彩珠实业有限公司 | Lead-free glass powder for aluminum paste of silicon solar cell and preparation method thereof |
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2014
- 2014-11-13 CN CN201410637730.2A patent/CN104402234B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101630695A (en) * | 2009-08-05 | 2010-01-20 | 贵研铂业股份有限公司 | Lead-free cadmium-free electrode slurry for crystalline silicon solar battery and preparation method thereof |
| JP2011207629A (en) * | 2010-03-28 | 2011-10-20 | Central Glass Co Ltd | Low-melting-point glass composition, and electrically conductive paste material using the same |
| CN102229469A (en) * | 2011-07-20 | 2011-11-02 | 珠海彩珠实业有限公司 | Lead-free glass powder for aluminum paste of silicon solar cell and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106251935A (en) * | 2016-09-27 | 2016-12-21 | 北京市合众创能光电技术有限公司 | Crystal silicon solar batteries front gate line conductive silver paste and preparation method thereof |
| CN115724589A (en) * | 2022-11-29 | 2023-03-03 | 西安创联电气科技（集团）有限责任公司 | Sealing glass powder for radio frequency connector and preparation and sealing method thereof |
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