CN1288763C - Defilming method for double layer antireflective titanium oxide/yttrium oxide coating - Google Patents
Defilming method for double layer antireflective titanium oxide/yttrium oxide coating Download PDFInfo
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- CN1288763C CN1288763C CNB021591458A CN02159145A CN1288763C CN 1288763 C CN1288763 C CN 1288763C CN B021591458 A CNB021591458 A CN B021591458A CN 02159145 A CN02159145 A CN 02159145A CN 1288763 C CN1288763 C CN 1288763C
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- antireflection coating
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The present invention relates to a method for stripping a double-layer titanium oxide/ yttrium oxide antireflection coating, which belongs to the technical field solar batteries. The method comprises the following steps: (1) soaking a battery with the double-layer titanium oxide/ yttrium oxide antireflection coating in concentrated sulfuric acid whose concentration is more than 95 % for 2 to 6 seconds in order to strip the coating, and then washing 6 to 8 times with deionized water; (2) soaking the battery in hydrofluoric acid, wherein the volume ratio of the hydrofluoric acid to H2O is (1: 4) to (1: 10), in order to strip the coating for 3 to 10 seconds, and then washing 6 to 8 times with deionized water; (3) dehydrating and drying the battery. The present invention not only can completely strip the double-layer titanium oxide/ yttrium oxide antireflection coating, but also does not influence the use of the battery by coating again. The method has the advantages of simple technological operation, easy control, low cost and stable quality of the battery. The present invention is particularly suitable for stripping the titanium oxide/yttrium oxide coatings of unqualified batteries resulting from oxygenation.
Description
Technical field
The invention belongs to technical field of solar cells, particularly relate to a kind of double layer antireflection coating titanium oxide/yittrium oxide and move back film method.
Background technology
At present, the antireflective coating titanium oxide/silica of traditional handicraft, it moves back the film hydrofluoric acid solution.But this method can not be moved back film, not reach demand of technical standard titanium sesquioxide/yttria film.Therefore, can't handle existing defective titanium sesquioxide/yttria film battery.
Summary of the invention
The present invention provides a kind of double layer antireflection coating titanium oxide/yittrium oxide to move back film method for solving the problem that prior art exists.
The purpose of this invention is to provide a kind of easy to operate, technical process is simple, the titanium oxide of system easy to control the quality/yittrium oxide duplicature moves back film method.
The present invention adopts following technical scheme:
Double layer antireflection coating titanium oxide/yittrium oxide in the solar cell moves back film method, double layer antireflection coating is immersed acid after, water cleans again, it is characterized in that moving back film method and comprises following technical process:
(1) will there be the battery of double layer antireflection coating titanium oxide/yittrium oxide to immerse in the 95% above concentrated sulfuric acid and move back film, then, use deionized water rinsing;
(2) immerse volume ratio HF: H again
2O=1: 4-1: move back film in 10 the hydrofluoric acid, moving back the film time is 3-10 second, then, uses deionized water rinsing;
(3) battery dehydrates.
The present invention can also adopt following technical measures:
Above-mentioned double layer antireflection coating titanium oxide/yittrium oxide moves back film method, be characterized in will have the battery of double layer antireflection coating titanium oxide/yittrium oxide to immerse concentration be to move back film in the concentrated sulfuric acid more than 95%, moving back the film time is 2-6 second.
Above-mentioned double layer antireflection coating titanium oxide/yittrium oxide moves back film method, is characterized in moving back film time 3-5 second.
Above-mentioned double layer antireflection coating titanium oxide/yittrium oxide moves back film method, be characterized in the battery of double-deck reflectance coating titanium oxide/yittrium oxide immerse concentration be move back film in the concentrated sulfuric acid 95% or more after, usefulness deionized water rinsing 6-8 time.
Above-mentioned double layer antireflection coating titanium oxide/yittrium oxide moves back film method, is characterized in immersing volume ratio HF: H
2O=1: 6-1: move back film in 8 the hydrofluoric acid, moving back the film time is 6-9 second.
Above-mentioned double layer antireflection coating titanium oxide/yittrium oxide moves back film method, be characterized in that hydrofluoric acid moves back film after, with deionized water rinsing 6-8 time.
Above-mentioned double layer antireflection coating titanium oxide/yittrium oxide moves back film method, is characterized in that battery dehydrates to adopt air-dry mode or drying mode after the cotton ball soaked in alcohol wiping.
Advantage that the present invention has and good effect:
Double layer antireflection coating titanium oxide/yittrium oxide moves back film method, owing to adopted technical scheme of the present invention, can be fully that titanium oxide/yittrium oxide double layer antireflection coating stripping is clean, the plated film again that does not influence battery again uses, and technological operation is simple, easy to control, cost is low, stable and reliable product quality.
The antireflective evaporation is last one technology of silicon solar cell monomer manufacture craft, and the present invention can be used for losing efficacy or the artificial origin does not open defective titanium oxide/yittrium oxide film battery that oxygen fill valve causes and moves back film owing to oxygen fill valve.
Description of drawings
Fig. 1 is double layer antireflection coating titanium oxide of the present invention/yittrium oxide battery structure schematic diagram.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, enumerate following example now and be described in detail as follows:
Embodiment 1
With reference to accompanying drawing 1, the structure of battery is followed successively by negative electrode 1, yittrium oxide film 2, oxidation titanium film 3, silicon 4 and positive electrode 5 from top to bottom.
Double layer antireflection coating titanium oxide/yittrium oxide battery move back film method, with the antireflective coating evaporation because defective titanium oxide/yittrium oxide film battery TDB24.5 * 40.2 that oxygen fill valve lost efficacy and to cause, immersion concentration is 98% 4 seconds of the commercially available concentrated sulfuric acid earlier, takes out back deionized water rinsing 7 times; Immerse volume ratio HF: H again
2O=1: 78 seconds of hydrofluoric acid, then with deionization flushing 7 times; Do with cotton ball soaked in alcohol wiping and fan at last.
Through above processes, can finish the membrane process that moves back of double layer antireflection coating titanium oxide/yittrium oxide battery, obtain the qualified film silicon solar cell that moves back.
Claims (7)
1. the double layer antireflection coating titanium oxide/yittrium oxide in the solar cell moves back film method, double layer antireflection coating is immersed acid after, water cleans again, it is characterized in that moving back film method and comprises following technical process:
(1) will there be the battery of double layer antireflection coating titanium oxide/yittrium oxide to immerse in the 95% above concentrated sulfuric acid and move back film, then, use deionized water rinsing;
(2) immerse volume ratio HF: H again
2O=1: 4-1: move back film in 10 the hydrofluoric acid, moving back the film time is 3-10 second, then, uses deionized water rinsing;
(3) battery dehydrates.
2. the film method that moves back according to claim 1 is characterized in that: will have the battery of double layer antireflection coating titanium oxide/yittrium oxide to immerse concentration is to move back film in the concentrated sulfuric acid more than 95%, and moving back the film time is 2-6 second.
3. the film method that moves back according to claim 2 is characterized in that: move back film time 3-5 second.
4. the film method that moves back according to claim 2 is characterized in that: use deionized water rinsing 6-8 time after moving back film.
5. the film method that moves back according to claim 1 is characterized in that: immerse volume ratio HF: H
2O=1: 6-1: move back film in 8 the hydrofluoric acid, moving back the film time is 6-9 second.
6. the film method that moves back according to claim 1 is characterized in that: after hydrofluoric acid moves back film, use deionized water rinsing 6-8 time.
7. the film method that moves back according to claim 1 is characterized in that: battery dehydrates and adopts air-dry mode or drying mode after the cotton ball soaked in alcohol wiping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021591458A CN1288763C (en) | 2002-12-30 | 2002-12-30 | Defilming method for double layer antireflective titanium oxide/yttrium oxide coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021591458A CN1288763C (en) | 2002-12-30 | 2002-12-30 | Defilming method for double layer antireflective titanium oxide/yttrium oxide coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512598A CN1512598A (en) | 2004-07-14 |
| CN1288763C true CN1288763C (en) | 2006-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021591458A Expired - Fee Related CN1288763C (en) | 2002-12-30 | 2002-12-30 | Defilming method for double layer antireflective titanium oxide/yttrium oxide coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573801B (en) * | 2007-10-24 | 2011-04-20 | 三菱电机株式会社 | Process for manufacturing solar cell |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE530464C2 (en) * | 2005-08-02 | 2008-06-17 | Sunstrip Ab | Nickel alumina coated solar absorber |
| CN100373636C (en) * | 2005-11-14 | 2008-03-05 | 浙江大学 | Method of preparing compound wavelength conversion-antireflecting on silicon solar energy battery surface |
| CN104529531B (en) * | 2015-01-21 | 2017-01-04 | 浙江星星科技股份有限公司 | A kind of method utilizing discarded polishing fluid strip sapphire film plating layer |
-
2002
- 2002-12-30 CN CNB021591458A patent/CN1288763C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573801B (en) * | 2007-10-24 | 2011-04-20 | 三菱电机株式会社 | Process for manufacturing solar cell |
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| CN1512598A (en) | 2004-07-14 |
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