CN102644121B - Alcohol-free etching liquid for monocrystalline silicon solar cells - Google Patents
Alcohol-free etching liquid for monocrystalline silicon solar cells Download PDFInfo
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- CN102644121B CN102644121B CN201210130526.2A CN201210130526A CN102644121B CN 102644121 B CN102644121 B CN 102644121B CN 201210130526 A CN201210130526 A CN 201210130526A CN 102644121 B CN102644121 B CN 102644121B
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- Prior art keywords
- alcohol
- water
- silicon solar
- soluble
- solar cells
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- 239000007788 liquid Substances 0.000 title claims abstract description 15
- 229910021421 monocrystalline silicon Inorganic materials 0.000 title abstract description 9
- 238000005530 etching Methods 0.000 title abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- LHGVFZTZFXWLCP-UHFFFAOYSA-N guaiacol Chemical class COC1=CC=CC=C1O LHGVFZTZFXWLCP-UHFFFAOYSA-N 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 14
- 239000010703 silicon Substances 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 3
- KXKCTSZYNCDFFG-UHFFFAOYSA-N 2-Methoxy-5-nitrophenol Chemical compound COC1=CC=C([N+]([O-])=O)C=C1O KXKCTSZYNCDFFG-UHFFFAOYSA-N 0.000 claims description 2
- MMAFPMQOIUHLNH-UHFFFAOYSA-N 2-hydroxy-3-methoxybenzenesulfonic acid Chemical class COC1=CC=CC(S(O)(=O)=O)=C1O MMAFPMQOIUHLNH-UHFFFAOYSA-N 0.000 claims description 2
- 229960001867 guaiacol Drugs 0.000 claims description 2
- 125000004970 halomethyl group Chemical group 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000009466 transformation Effects 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 235000008216 herbs Nutrition 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- LULCPJWUGUVEFU-UHFFFAOYSA-N Phthiocol Natural products C1=CC=C2C(=O)C(C)=C(O)C(=O)C2=C1 LULCPJWUGUVEFU-UHFFFAOYSA-N 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- KBRKFTKQRMYINW-UHFFFAOYSA-M sodium;2-methoxy-5-nitrophenolate Chemical compound [Na+].COC1=CC=C([N+]([O-])=O)C=C1[O-] KBRKFTKQRMYINW-UHFFFAOYSA-M 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The invention discloses alcohol-free etching liquid for monocrystalline silicon solar cells. The alcohol-free etching liquid is prepared by raw materials including, in weight percentage, from 1 to 3% of NaOH, from 5 to 15% of water-soluble guaiacol derivative and the balance deionized water, and the total weight percentage of the raw materials is 100%. The water-soluble guaiacol derivative replaces isopropanol (IPA), magical permeability and surface activity of the water-soluble guaiacol derivative are used for preparing 'pyramid' suede with the uniform size, and accordingly photoelectric conversion efficiency of the solar cells is improved.
Description
Technical field
The present invention relates to area of solar cell, is exactly that a kind of monocrystaline silicon solar cell is without alcohol Woolen-making liquid.
Background technology
In the past few years photovoltaic industry rapid growth, the annual average rate of increase of nearly 10 years solar cell/assemblies is 42.7%, the average growth rate of nearly 5 years is 51%, the epoch of selling the energy are entered, the powerful market requirement impels the numerous and confused dilatation of each major company, also impels each research institution to drop into financial resources manpower and improves constantly the photoelectric transformation efficiency of present battery and the solar cell of Development of New Generation.
Improving one of major measure of single product silicon solar cell photoelectric transformation efficiency is reduce the optical reflection of battery, this by depositing antireflection film and table texture two kinds of methods to carry out calamity existing.Surface Texture metallization processes prepares the important technique of one of crystal-silicon solar cell, the quality of process results to the photoelectric transformation efficiency of battery and visual appearance most important.Although the existing history for many years of monocrystalline silicon battery surface-texturing research, but the problem of high-performance Large-Area-Uniform texture is not well solved always, a difficult problem of often touching sword is the control of the repeatability of technique, homogeneity, " pyramid " size, mainly adopt at present sodium hydroxide or potassium hydroxide, water, Virahol (IPA) mixed solution carry out making herbs into wool, but Virahol (IPA) boiling point is low, inflammable and explosive, limit its experiment condition and cost is high.
Summary of the invention
The object of this invention is to provide a kind of environmental protection, obtained pile effects is good, reflectivity is low, monocrystaline silicon solar cell simultaneously easy and simple to handle is without alcohol Woolen-making liquid.
Above-mentioned purpose is realized by following scheme:
A kind of monocrystaline silicon solar cell, without alcohol Woolen-making liquid, is characterized in that:
Be made up of the raw material of following weight per-cent:
NaOH 1-3%，
Water-soluble methyl catechol derivative 5-15%,
Deionized water surplus, total amount is 100%.
Described a kind of monocrystaline silicon solar cell, without alcohol Woolen-making liquid, is characterized in that: one or more in Guaiacolsulfonic acid salt, 5 nitroguaiacol and salt thereof that described water-soluble methyl catechol derivative refers to, halo methyl catechol.
Described a kind of monocrystaline silicon solar cell is without alcohol Woolen-making liquid, it is characterized in that: preparation method is: first according to weight percent, deionized water is joined in reactor, slowly again under stirring add NaOH according to weight percent, stirring and dissolving, water-soluble methyl catechol derivative is added, until it all dissolves again according to weight percent.
Described a kind of monocrystaline silicon solar cell is without alcohol Woolen-making liquid, it is characterized in that: using method is: monocrystalline silicon piece is immersed in described without in alcohol Woolen-making liquid, temperature controls at 80-90 DEG C, time 10-25 minute, can obtain being formed at silicon chip surface being covered with pyramidal suede structure, carrying out aftertreatment by prior art to monocrystalline silicon piece can enter next procedure.
Beneficial effect of the present invention is:
1, preparation method of the present invention completely solves atmospheric pollution and employee's injury, wastewater treatment holds explosive danger, and adopt without the making herbs into wool of alcohol method, production cost reduces greatly, obtained pile effects is good, reflectivity is low, " pyramid " size is controlled, and the making herbs into wool time is short, greatly enhances productivity;
2, the present invention adopts water-soluble methyl catechol derivative to replace Virahol (IPA), utilize the perviousness of the mystery of water-soluble methyl catechol derivative and obtained " pyramid " matte of uniform size of surfactivity, the sunken light effect of solar cell can be significantly improved, improve the photoelectric transformation efficiency of solar cell.
Embodiment
Embodiment 1
NaOH 1-3%
Thiocol 5-15%
Deionized water surplus, total amount is 100%
Method for making: first deionized water is joined in reactor, slowly add NaOH under stirring, stirring and dissolving, then add thiocol, until it all dissolves.
Monocrystalline silicon piece is immersed in above-mentioned temperature controls at 80-90 DEG C without in alcohol Woolen-making liquid, within time 10-25 minute, can obtain being formed at silicon chip surface being covered with pyramidal suede structure, carrying out aftertreatment by prior art to monocrystalline silicon piece can enter next procedure.
Embodiment 2
NaOH 1-3%
5 nitroguaiacol sodium 5-15%
Deionized water surplus, total amount is 100%
Method for making: first deionized water is joined in reactor, slowly add NaOH under stirring, stirring and dissolving, then add 5 nitroguaiacol sodium, until it all dissolves.
Monocrystalline silicon piece is immersed in above-mentioned without in alcohol Woolen-making liquid, temperature controls at 80-90 DEG C, within time 10-25 minute, can obtain being formed at silicon chip surface being covered with pyramidal suede structure, and its cone structure size is less than 2.5 μm, size uniform, without hickie, be desirable taper pyramid structure, reflectivity is less than 10%, improve photoelectric conversion rate, improve the quality of products on the whole, and reduce cost, then by prior art, aftertreatment is carried out to monocrystalline silicon piece and can enter next procedure.
Claims (1)
1. monocrystaline silicon solar cell is without an alcohol Woolen-making liquid, it is characterized in that: be made up of the raw material of following weight per-cent: NaOH 1-3%, water-soluble methyl catechol derivative 5-15%, deionized water surplus, and total amount is 100%;
One or more in Guaiacolsulfonic acid salt, 5 nitroguaiacol and salt thereof that described water-soluble methyl catechol derivative refers to, halo methyl catechol;
Described a kind of monocrystaline silicon solar cell is without alcohol Woolen-making liquid, preparation method is: first according to weight percent, deionized water is joined in reactor, slowly again under stirring add NaOH according to weight percent, stirring and dissolving, water-soluble methyl catechol derivative is added, until it all dissolves again according to weight percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210130526.2A CN102644121B (en) | 2012-04-28 | 2012-04-28 | Alcohol-free etching liquid for monocrystalline silicon solar cells |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210130526.2A CN102644121B (en) | 2012-04-28 | 2012-04-28 | Alcohol-free etching liquid for monocrystalline silicon solar cells |
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| CN102644121A CN102644121A (en) | 2012-08-22 |
| CN102644121B true CN102644121B (en) | 2015-03-25 |
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| CN201210130526.2A Active CN102644121B (en) | 2012-04-28 | 2012-04-28 | Alcohol-free etching liquid for monocrystalline silicon solar cells |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888656B (en) * | 2012-09-28 | 2015-04-08 | 绍兴拓邦电子科技有限公司 | High-boiling point monocrystalline silicon wafer surface texturing additive and using method thereof |
| CN105113014A (en) * | 2015-08-21 | 2015-12-02 | 合肥中南光电有限公司 | Monocrystalline silicon wafer texturization liquid capable of removing peculiar smells and preparation method thereof |
| CN105133031A (en) * | 2015-08-25 | 2015-12-09 | 合肥中南光电有限公司 | Bamboo extraction solution silicon wafer texture-etchant and preparation method therefor |
| CN105133028A (en) * | 2015-08-25 | 2015-12-09 | 合肥中南光电有限公司 | Antibacterial mildewproof silicon wafer texture-etchant and preparation method therefor |
| CN105133030A (en) * | 2015-08-25 | 2015-12-09 | 合肥中南光电有限公司 | Long-acting silicon wafer texture-etchant and preparation method therefor |
| KR20210107656A (en) * | 2018-12-18 | 2021-09-01 | 가부시키가이샤 도쿠야마 | silicon etchant |
| CN115000202B (en) * | 2022-06-01 | 2023-06-09 | 松山湖材料实验室 | Low-reflection suede structure, suede additive and suede method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1650635A1 (en) * | 1987-12-15 | 1991-05-23 | Казанский инженерно-строительный институт | Raw material for manufacturing silicate brick |
| CN101087007A (en) * | 2007-05-11 | 2007-12-12 | 上海明兴开城超音波科技有限公司 | Chemical etching, cleaning and drying method of single-crystal silicon solar battery and integrated processing machine |
| CN101717946A (en) * | 2009-12-30 | 2010-06-02 | 江阴市润玛电子材料有限公司 | Liquid and method for etching texture on surfaces of silicon wafers |
-
2012
- 2012-04-28 CN CN201210130526.2A patent/CN102644121B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1650635A1 (en) * | 1987-12-15 | 1991-05-23 | Казанский инженерно-строительный институт | Raw material for manufacturing silicate brick |
| CN101087007A (en) * | 2007-05-11 | 2007-12-12 | 上海明兴开城超音波科技有限公司 | Chemical etching, cleaning and drying method of single-crystal silicon solar battery and integrated processing machine |
| CN101717946A (en) * | 2009-12-30 | 2010-06-02 | 江阴市润玛电子材料有限公司 | Liquid and method for etching texture on surfaces of silicon wafers |
Non-Patent Citations (1)
| Title |
|---|
| 《5-硝基愈创木酚在多壁碳纳米管修饰电极上的电化学行为及其测定》;任健敏;《分析测试学报》;20101115;第13-14页 * |
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| CN102644121A (en) | 2012-08-22 |
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Owner name: TONGLING HENGYOU NEW MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TONGLING KAISHUN BIOLOGY TECHNOLOGY CO., LTD. Effective date: 20121025 |
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Inventor after: Fu Xuelian Inventor after: Huang Wei Inventor after: Feng Shengping Inventor after: Yu Zhenyun Inventor after: Yu Suyun Inventor before: Yu Zhenyun Inventor before: Fu Xuelian Inventor before: Yao Yazun Inventor before: Yan Lingqi Inventor before: Yu Suyun |
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Free format text: CORRECT: INVENTOR; FROM: YU ZHENYUN FU XUELIAN YAO YAZUN YAN LINGQI YU SUYUN TO: FU XUELIAN HUANG WEI FENG SHENGPING YU ZHENYUN YU SUYUN |
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Effective date of registration: 20121025 Address after: 244000 Anhui science and Technology Development Zone, Tongling Economic Development Zone, B314 Applicant after: TONGLING HENGYOU NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 244000 Science Park of USTC, Tongling Economic Development Zone, Anhui, B315 Applicant before: TONGLING KAISHUN BIOLOGY TECHNOLOGY Co.,Ltd. |
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Address after: 235299 Jicun Industrial Park, Xiao County, Suzhou City, Anhui Province Patentee after: Anhui Dongkai Biotechnology Co.,Ltd. Address before: 235200 Jicun Industrial Park, Xiao County, Suzhou City, Anhui Province Patentee before: EASTSKY PHARM (ANHUI) TECHNOLOGY Co.,Ltd. |
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Denomination of invention: A Monocrystalline Silicon Solar Cell Alcoholic Free Velvet Liquid Granted publication date: 20150325 Pledgee: Bank of China Limited Suzhou Branch Pledgor: Anhui Dongkai Biotechnology Co.,Ltd. Registration number: Y2024980001524 |
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