CN103606392A - Solar cell front-silver conductive silver slurry composition and preparation method thereof - Google Patents
Solar cell front-silver conductive silver slurry composition and preparation method thereof Download PDFInfo
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- CN103606392A CN103606392A CN201310552283.6A CN201310552283A CN103606392A CN 103606392 A CN103606392 A CN 103606392A CN 201310552283 A CN201310552283 A CN 201310552283A CN 103606392 A CN103606392 A CN 103606392A
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Abstract
The invention discloses a solar cell front-silver conductive silver slurry composition and a preparation method thereof. The composition is composed of 2-5% of a rosin derivative, 10-15% of a terpenes mixture, 75-80% of silver powder, 1-6% of glass powder and 1-5% of a sintering aid, wherein the terpenes mixture is a mixed solvent prepared by mixing geraniol, nerol, citronellol and linalool at a mass ratio of 1:1:1:1, the glass powder is a material formed by sintering PbO2, SnO2 and SiO2 at a mol ratio of 1:0.5:1, and the sintering aid is an organic matter containing dibutyl tin carboxylate. The advantages are as follows: the printing effects of the silver slurry composition is good, the linewidth is easy to control, the sintering scope is quite wide, diffusion in a sintering process is difficult, and the conversion efficiency of a solar cell can be increased by 0.2-0.35%.
Description
Technical field
The present invention relates to solar cell, particularly composition and the preparation method of the positive silver-colored conductive silver paste of a kind of solar cell.
Background technology
The grid line of solar cell transformation efficiency and battery surface has close relationship, and wherein, the grid line on surface is generally starched printing by silver and formed, and different materials, different printing depth-width ratios have great impact to solar cell conversion ratio.For obtaining more large effective area and optoelectronic transformation efficiency, forefathers have carried out a lot of research, have delivered a lot of patents and document.Wherein, relatively effective method is the printing width that reduces grid line, improves the height of grid line, but do like this problem existing, be that general resin deflection is inadequate, easily subside, also have silver slurry self bad dispersibility simultaneously, cause silver powder to reunite, be difficult to obtain good printing effect; In addition, silver slurry also easily cracks in sintering process, causes silver-silicon contact-making surface resistance to reduce.In positive silver-colored conductive silver paste slurry, the function of glass dust is cementation, the silver powder after sintering is bonded on the surface of crystalline silicon.In sintering process, the resistance of formed silver-silicon interface is the key that affects battery conversion ratio, and general glass dust is all non-conductive insulator, easily at the larger resistance of interface formation.
Summary of the invention
The object of this invention is to provide the positive silver-colored conductive silver paste composition of a kind of solar cell and preparation method, to solve slurry in prior art, easily subside, the technical barrier that grid line resistance is large.
Technical solution of the present invention is: the positive silver-colored conductive silver paste composition of a kind of solar cell, it is characterized in that by rosin derivative, and terpene blend, silver powder, glass dust and sintering aid form, and the mass percentage content of each component is:
Wherein, the structure of described rosin derivative is:
The mass ratio of described terpene blend is: geraniol: nerol: citronellol: the mixed solvent of linalool=1:1:1:1, and the structural formula of geraniol, nerol, citronellol and linalool is respectively:
Described glass dust is that mol ratio is: PbO
2: SnO
2: SiO
2the mixture sintering of=1:0.5:1 forms;
Described sintering aid is the organic substance that contains carboxylic acid dibutyl tin, and its structure is:
wherein, R can be and contains 11 alkyl more than carbon atom.
In addition, described rosin derivative, is R=CH in structural formula
2oH, R=COOCH
3or R=CH
2oCOCH
2cH
3several materials in any one, or this several combination in any.
The preparation method of the positive silver-colored conductive silver paste composition of above-mentioned solar cell is: the liquid component in component is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Silver-colored paste composition of the present invention is difficult for subsiding, good dispersion, easily wetting, after sintering, ash content is less, slurry in sintering process, do not crack or crackle less, and the glass dust of the silver-colored silicon interface that makes to bond has certain conductivity, reduced on the whole the positive silver grating line resistance of solar cell, compared with prior art, have the following advantages:
1, printing effect is good, and live width is easily controlled, and sintering range is wider, is not easy to spread in sintering process;
2, solar cell transformation efficiency has been improved to 0.2～0.35%.
Embodiment
Embodiment 1:
The positive silver-colored conductive silver paste composition of solar cell, its each constituent mass percentage composition is as follows respectively:
Above-mentioned composition preparation method is: the liquid component in component is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Composition is adopted to 250～300 order silk screen printings, and before printing, width is 102 μ m, and after sintering, width is 93 μ m, and adhesive force is 20N.
Embodiment 2:
The positive silver-colored conductive silver paste composition of solar cell, its each constituent mass percentage composition is as follows respectively:
Above-mentioned composition preparation method is: the liquid component in component is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Composition is adopted to 250～300 order silk screen printings, and before printing, width is 102 μ m, and after sintering, width is 93 μ m, and adhesive force is 20N.
Embodiment 3:
The positive silver-colored conductive silver paste composition of solar cell, its each constituent mass percentage composition is as follows respectively:
Above-mentioned composition preparation method is: the liquid component in component is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Composition is adopted to 250～300 order silk screen printings, and before printing, width is 110 μ m, and after sintering, width is 98 μ m, and adhesive force is 20N.
Embodiment 4:
The positive silver-colored conductive silver paste composition of solar cell, its each constituent mass percentage composition is as follows respectively:
Above-mentioned composition preparation method is: the liquid component in component is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Composition is adopted to 250～300 order silk screen printings, and before printing, width is 95 μ m, and after sintering, width is 93 μ m, and adhesive force is 20N.
Embodiment 5:
The positive silver-colored conductive silver paste composition of solar cell, its each constituent mass percentage composition is as follows respectively:
Above-mentioned composition preparation method is: the liquid component in component is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Composition is adopted to 250～300 order silk screen printings,, before printing, width is 115 μ m, and after sintering, width is 103 μ m, and adhesive force is 19N.
Claims (4)
1. the positive silver-colored conductive silver paste composition of solar cell, is characterized in that: by rosin derivative, and terpene blend, silver powder, glass dust and sintering aid form, and the mass percentage content of each component is:
Wherein, the molecular structure of described rosin derivative is:
described terpene blend is that mass ratio is: the mixed solvent of geraniol: nerol: citronellol: linalool=1:1:1:1; Described glass dust is that mol ratio is: PbO
2: SnO
2: SiO
2the material that=1:0.5:1 sintering forms; Described sintering aid is to contain carboxylic acid dibutyl tin organic substance, and its molecular structure is:
2. the positive silver-colored conductive silver paste composition of solar cell according to claim 1, is characterized in that: described contains in the organic molecular structure of carboxylic acid dibutyl tin, and R contains 11 alkyl more than carbon atom.
3. the positive silver-colored conductive silver paste composition of solar cell according to claim 2, is characterized in that: described rosin derivative is R=CH in structural formula
2oH, R=COOCH
3or R=CH
2oCOCH
2cH
3several materials in any one, or the combination in any of several materials.
4. the method for the positive silver-colored conductive silver paste composition of preparation solar cell as claimed in claim 1, is characterized in that: first the liquid component in described composition is mixed, then add solid constituent to stir, then grind on grinder, finally packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552283.6A CN103606392B (en) | 2013-11-08 | 2013-11-08 | A kind of positive silver-colored conductive silver paste composition of solar cell and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552283.6A CN103606392B (en) | 2013-11-08 | 2013-11-08 | A kind of positive silver-colored conductive silver paste composition of solar cell and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103606392A true CN103606392A (en) | 2014-02-26 |
| CN103606392B CN103606392B (en) | 2016-05-04 |
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|---|---|---|---|
| CN201310552283.6A Expired - Fee Related CN103606392B (en) | 2013-11-08 | 2013-11-08 | A kind of positive silver-colored conductive silver paste composition of solar cell and preparation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006073836A (en) * | 2004-09-02 | 2006-03-16 | Kyocera Chemical Corp | Ceramic electronic component and conductive paste therefor |
| JP2007019069A (en) * | 2005-07-05 | 2007-01-25 | Toyo Aluminium Kk | Paste composition and solar battery element using it |
| CN101609850A (en) * | 2009-07-14 | 2009-12-23 | 中南大学 | Lead-free silver conductive paste used for positive electrode of solar battery and preparation technology thereof |
| CN101968975A (en) * | 2010-08-20 | 2011-02-09 | 长兴化学工业股份有限公司 | Aluminum paste composition and solar cell module using same |
| CN102304287A (en) * | 2011-07-19 | 2012-01-04 | 彩虹集团公司 | Organic adhesive composite used for silicon solar cell silver paste and preparation method thereof |
-
2013
- 2013-11-08 CN CN201310552283.6A patent/CN103606392B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006073836A (en) * | 2004-09-02 | 2006-03-16 | Kyocera Chemical Corp | Ceramic electronic component and conductive paste therefor |
| JP2007019069A (en) * | 2005-07-05 | 2007-01-25 | Toyo Aluminium Kk | Paste composition and solar battery element using it |
| CN101609850A (en) * | 2009-07-14 | 2009-12-23 | 中南大学 | Lead-free silver conductive paste used for positive electrode of solar battery and preparation technology thereof |
| CN101968975A (en) * | 2010-08-20 | 2011-02-09 | 长兴化学工业股份有限公司 | Aluminum paste composition and solar cell module using same |
| CN102304287A (en) * | 2011-07-19 | 2012-01-04 | 彩虹集团公司 | Organic adhesive composite used for silicon solar cell silver paste and preparation method thereof |
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|---|---|
| CN103606392B (en) | 2016-05-04 |
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Granted publication date: 20160504 Termination date: 20181108 |