CN102912450A - Monocrystalline silicon flocking additive - Google Patents
Monocrystalline silicon flocking additive Download PDFInfo
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- CN102912450A CN102912450A CN2012104014907A CN201210401490A CN102912450A CN 102912450 A CN102912450 A CN 102912450A CN 2012104014907 A CN2012104014907 A CN 2012104014907A CN 201210401490 A CN201210401490 A CN 201210401490A CN 102912450 A CN102912450 A CN 102912450A
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Abstract
The invention discloses a monocrystalline silicon flocking additive which is characterized by comprising the following components in percentage by mass: 5-20% of sodium dodecyl benzene sulfonate, 10-18% of polyphosphates, 0-7% of lactic acid, 2-10% of sulfuric acid and the balance of water. Compared with the prior art, the formula is simple, the flocking time is reduced, the flocking pyramid is uniform, the flocking repeatability is good, and the battery cell conversion efficiency is correspondingly improved; and moreover, the consumption of chemicals is reduced, and the production cost is lowered.
Description
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Technical field
The present invention relates to the additive in a kind of solar battery slice etching operation, especially a kind of monocrystaline silicon solar cell sheet making herbs into wool additive.
Background technology
In the solar battery sheet process, for performance and the efficient that improves solar cell, need to make matte at silicon chip surface, effectively suede structure can so that the incident sunlight carries out Multi reflection and refraction at silicon chip surface, change the working direction of incident light in silicon.
At present, the technical process of conventional manufacture of solar cells is for pre-washing is wanted on the surface, making herbs into wool is removed affected layer and formed antireflecting suede structure, matting and dry; Method by liquid source diffusion forms the PN junction of Uniform Doped at the silicon chip surface each point, removes the periphery P N mating surface phosphorosilicate glass that forms in the diffusion process; Surface deposition passivation and antireflective coating; Make backplate, the surface electrical occasion front electrode of solar cell; Sintering forms ohmic contact, thereby finishes the making processes of whole cell piece.
Making herbs into wool is to remove damaged layer on surface of silicon slice and form the process of antireflecting suede structure with chemistry or physical method, and present conventional leather producing process generally adopts potassium hydroxide or sodium hydroxide, and the mixing solutions that adds suitable Virahol and water glass carries out making herbs into wool.Its shortcoming is: the making herbs into wool time is long, and the making herbs into wool pyramid is large and inhomogeneous, and the original silicon chip condition of surface is required height, and chemical cost is large, the making herbs into wool poor repeatability, and the making herbs into wool size is inhomogeneous, thereby causes the problems such as the cell piece efficiency of conversion is low.
Summary of the invention
The object of the invention is to the defective for the prior art existence, provide a kind of making herbs into wool effective monocrystaline silicon solar cell sheet making herbs into wool additive.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of silicon single crystal making herbs into wool additive is characterized in that it is formulated by following component: Sodium dodecylbenzene sulfonate, poly-phosphate, lactic acid, sulfuric acid and water.
The mass percent of described component is: Sodium dodecylbenzene sulfonate 5-20%, poly-phosphate 10-18%, lactic acid 0-7%, sulfuric acid 2-10%, surplus is water.
The mass percent of described component is: Sodium dodecylbenzene sulfonate 10%, poly-phosphate 15%, lactic acid 5%, sulfuric acid 8%, water 62%.
Described water is deionized water, and described poly-phosphate is Rapisol.
Compared with prior art, the present invention fills a prescription simply, has reduced the making herbs into wool time, and the making herbs into wool pyramid is even, the making herbs into wool good reproducibility, and the cell piece efficiency of conversion also obtains corresponding raising; Chemical cost reduces, and has reduced production cost.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1.(1) additive preparation: be that 5% Sodium dodecylbenzene sulfonate, 10% poly-phosphate, 5% lactic acid, 8% sulfuric acid join in 72% the deionized water with mass percent, mix and be made into the making herbs into wool additive.(2) prepare alkaline Woolen-making liquid, potassium hydroxide is dissolved in the deionized water, obtain alkaline Woolen-making liquid, wherein the potassium hydroxide mass percentage content is 1.8%.The additive for preparing is added in the Woolen-making liquid, obtain Wool-making agent.Monocrystalline silicon chip of solar cell is immersed in carries out making herbs into wool in the Wool-making agent.
Embodiment 2.(1) additive preparation: be that 10% Sodium dodecylbenzene sulfonate, 15% poly-phosphate, 5% lactic acid, 8% sulfuric acid join in 62% the deionized water with mass percent, mix and be made into the making herbs into wool additive.(2) prepare alkaline Woolen-making liquid, potassium hydroxide is dissolved in the deionized water, obtain alkaline Woolen-making liquid, wherein the potassium hydroxide mass percentage content is 1.2%.The additive for preparing is added in the Woolen-making liquid, obtain Wool-making agent.Monocrystalline silicon chip of solar cell is immersed in carries out making herbs into wool in the Wool-making agent.
Embodiment 3.(1) additive preparation: be that 20% Sodium dodecylbenzene sulfonate, 18% poly-phosphate, 5% sulfuric acid join in 57% the deionized water with mass percent, mix and be made into the making herbs into wool additive.(2) prepare alkaline Woolen-making liquid, potassium hydroxide is dissolved in the deionized water, obtain alkaline Woolen-making liquid, wherein the potassium hydroxide mass percentage content is 1.5%.The additive for preparing is added in the Woolen-making liquid, obtain Wool-making agent.Monocrystalline silicon chip of solar cell is immersed in carries out making herbs into wool in the Wool-making agent.
Claims (4)
1. a silicon single crystal making herbs into wool additive is characterized in that it is formulated by following component: Sodium dodecylbenzene sulfonate, poly-phosphate, lactic acid, sulfuric acid and water.
2. silicon single crystal making herbs into wool additive according to claim 1, it is characterized in that the mass percent of described component is: Sodium dodecylbenzene sulfonate 5-20%, poly-phosphate 10-18%, lactic acid 0-7%, sulfuric acid 2-10%, surplus is water.
3. silicon single crystal making herbs into wool additive according to claim 1 is characterized in that the mass percent of described component is: Sodium dodecylbenzene sulfonate 10%, poly-phosphate 15%, lactic acid 5%, sulfuric acid 8%, water 62%.
4. silicon single crystal making herbs into wool additive according to claim 1 and 2 is characterized in that described water is deionized water, and described poly-phosphate is Rapisol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210401490.7A CN102912450B (en) | 2012-10-22 | 2012-10-22 | Monocrystalline silicon flocking additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210401490.7A CN102912450B (en) | 2012-10-22 | 2012-10-22 | Monocrystalline silicon flocking additive |
Publications (2)
| Publication Number | Publication Date |
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| CN102912450A true CN102912450A (en) | 2013-02-06 |
| CN102912450B CN102912450B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210401490.7A Active CN102912450B (en) | 2012-10-22 | 2012-10-22 | Monocrystalline silicon flocking additive |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032154A1 (en) * | 2013-09-04 | 2015-03-12 | 常州时创能源科技有限公司 | Polycrystalline silicon wafer texturizing additive and use thereof |
| CN105040108A (en) * | 2015-08-21 | 2015-11-11 | 浙江启鑫新能源科技股份有限公司 | Texture surface making method for polycrystalline silicon solar battery |
| CN105154983A (en) * | 2015-08-21 | 2015-12-16 | 浙江启鑫新能源科技股份有限公司 | Preparation method of single crystalline silicon solar cell |
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| CN101570897A (en) * | 2009-06-03 | 2009-11-04 | 中国科学院电工研究所 | Corrosive liquid used for monocrystal line silicon matte preparation and monocrystal line silicon matte preparation method |
| CN102181935A (en) * | 2010-10-26 | 2011-09-14 | 江阴浚鑫科技有限公司 | Method and corrosive liquid for making texture surface of monocrystalline silicon |
| CN102312294A (en) * | 2011-09-08 | 2012-01-11 | 浙江向日葵光能科技股份有限公司 | Additive used for monocrystalline silicon wafer alkaline flocking and application method thereof |
| CN102337595A (en) * | 2011-04-19 | 2012-02-01 | 上海晶太光伏科技有限公司 | Small-texture monocrystal silicon solar cell texture-manufacturing promoter and application thereof |
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2012
- 2012-10-22 CN CN201210401490.7A patent/CN102912450B/en active Active
Patent Citations (4)
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| CN101570897A (en) * | 2009-06-03 | 2009-11-04 | 中国科学院电工研究所 | Corrosive liquid used for monocrystal line silicon matte preparation and monocrystal line silicon matte preparation method |
| CN102181935A (en) * | 2010-10-26 | 2011-09-14 | 江阴浚鑫科技有限公司 | Method and corrosive liquid for making texture surface of monocrystalline silicon |
| CN102337595A (en) * | 2011-04-19 | 2012-02-01 | 上海晶太光伏科技有限公司 | Small-texture monocrystal silicon solar cell texture-manufacturing promoter and application thereof |
| CN102312294A (en) * | 2011-09-08 | 2012-01-11 | 浙江向日葵光能科技股份有限公司 | Additive used for monocrystalline silicon wafer alkaline flocking and application method thereof |
Non-Patent Citations (1)
| Title |
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| 滕道祥: "单晶硅太阳电池工业化绒面技术研究", 《电源技术》, vol. 34, no. 12, 31 December 2010 (2010-12-31), pages 1246 - 1248 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032154A1 (en) * | 2013-09-04 | 2015-03-12 | 常州时创能源科技有限公司 | Polycrystalline silicon wafer texturizing additive and use thereof |
| CN105040108A (en) * | 2015-08-21 | 2015-11-11 | 浙江启鑫新能源科技股份有限公司 | Texture surface making method for polycrystalline silicon solar battery |
| CN105154983A (en) * | 2015-08-21 | 2015-12-16 | 浙江启鑫新能源科技股份有限公司 | Preparation method of single crystalline silicon solar cell |
| CN105154983B (en) * | 2015-08-21 | 2017-09-12 | 浙江启鑫新能源科技股份有限公司 | The preparation method of monocrystaline silicon solar cell |
| CN105040108B (en) * | 2015-08-21 | 2017-11-17 | 浙江启鑫新能源科技股份有限公司 | The etching method of polysilicon solar cell |
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| CN102912450B (en) | 2015-07-01 |
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