CN101373670B - Method for preparing porous platinum electrode of solar cell - Google Patents
Method for preparing porous platinum electrode of solar cell Download PDFInfo
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- CN101373670B CN101373670B CN2008102316605A CN200810231660A CN101373670B CN 101373670 B CN101373670 B CN 101373670B CN 2008102316605 A CN2008102316605 A CN 2008102316605A CN 200810231660 A CN200810231660 A CN 200810231660A CN 101373670 B CN101373670 B CN 101373670B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention relates to the dye-sensitized solar cell and provides a preparation method for a porous platinum electrode of a dye-sensitized solar cell. The method comprises the following steps: dissolving platinic chloride in water to prepare a platinic chloride water solution; adding glycol and droxyethylcellulose to obtain a solution after complete dissolution; adding nano particles which can dissolve at the high temperature; stirring uniformly; applying to the surface of a piece of conductive glass by selecting the applying techniques, such as spin coating, spray finishing, screen printing, or blade coating; forming the platinum electrode with a porous structure after the nano particles are dissolved or volatile at the high temperature after sintering. The porous platinum electrode has the advantages of significantly improving the catalyzing effect, reducing the energy dissipation of the cell to the electrode, and improving the photoelectric conversion efficiency, because the specific surface area of the metal platinum is increased.
Description
Technical field
The present invention relates to field of dye-sensitized solar cells, particularly a kind of preparation method who is used for the porous platinum electrode of DSSC.
Background technology
Institute of Technology laboratories such as Lausanne, SUI height in 1991 authoritative journal Nature (O ' Regan B., Gr
Etzel M., 1991,353,737) go up the achievement in research of a kind of brand-new DSSC of report, obtained international extensive concern and attention immediately.
DSSC mainly is made up of following components: light anode, nano porous semiconductor film, dye sensitizing agent, electrolyte and to electrode.This battery is with I
3/ I oxidation-reduction pair is that media transmits electric charge at the light anode with between to electrode.In the circulation of this media regeneration, oxidized material (I
2Or I
3) on to electrode, be reduced to I again
-In this process, reduce because above-mentioned reduction reaction is being very necessary to the energy consumption on the electrode.Therefore, as the important component part of battery, to the electrocatalysis characteristic of electrode electricity conversion important influence to entire cell.But by the platinum electrode that commonsense method obtains, its surface area is less relatively, the platinum on surface for the catalytic capability of reduction reaction also a little less than, cause the total energy efficiency of entire cell not high; And porous platinum electrode helps improving the catalytic performance to electrode because specific area is bigger, reduces battery to the energy consumption on the electrode, thereby improves the photoelectric conversion efficiency of battery.
Summary of the invention
Long-pending less relatively at the platinum electrode surface of prior art, platinum for the catalytic capability of reduction reaction also a little less than, it is as follows that the technical problem that the total energy efficiency of entire cell is not high proposes a kind of porous platinum electrode preparation method:
In concentration is in the 0.01-0.05g/mL chloroplatinic acid aqueous solution, add polyethylene glycol and hydroxyethylcellulose 0.1-0.4g/mL, fully after the dissolving, the inorganic ammonium salt powder that adds 0.01-0.03g/mL nano-scale carbon powder, carbon nano-tube again or be heated and be decomposed into gas fully stirs, be coated in conductive glass surface, thickness is the 0.1-1 micron, and through 20-30 minute sintering, sintering temperature was 350~450 ℃, nano particle at high temperature decomposes or volatilizees, and forms the platinum electrode with loose structure.
In the said method, the weight ratio of described adding polyethylene glycol and hydroxyethylcellulose is 3-1.5:1.The molecular weight ranges of described polyethylene glycol is 200~2000.The described inorganic salts powder that is decomposed into gas fully that is heated is ammonium chloride, ammonium nitrate or amine perchlorate.The method of described coating is spin coating, spraying, blade coating or silk screen printing.
After the porous platinum electrode that said method obtains was applied to DSSC, battery performance obviously was better than the battery that commonsense method makes.Experimental result from accompanying drawing, porous platinum electrode has big facilitation for the raising of short circuit current and battery efficiency, and two lifting amplitude is about 10% and 8%.
The advantage of this porous platinum electrode is: because the specific area of metal platinum increases, can significantly improve catalytic effect, reduce battery to the energy loss on the electrode, improve the electricity conversion of battery.
Description of drawings
The SEM photo of Fig. 1 embodiment of the invention 1 platinum electrode surface.
The I-V curve of the solar cell compare test that Fig. 2 the present invention and common platinum electrode effective area are 1.5cm * 1.5cm.
Embodiment
The present invention is described in further detail below in conjunction with specific embodiment.
Embodiment 1
In concentration is in the 0.02g/mL chloroplatinic acid aqueous solution, adds 0.24g/mL polyethylene glycol (molecular weight 1000) and 0.12g/mL hydroxyethylcellulose, adds 0.01g/mL nano-scale carbon powder again, stirs, and is spin-coated on 0.3 micron of conductive glass surface.The electro-conductive glass that scribbles chloroplatinic acid is put into sintering furnace,, take out after slowly cooling to room temperature, promptly obtain porous platinum electrode at 350 ℃ of following insulation 30min.The SEM photo of gained platinum electrode surface as shown in Figure 1.
Embodiment 2
In concentration is in the 0.01g/mL chloroplatinic acid aqueous solution, adds 0.3g/mL polyethylene glycol (molecular weight 200) and 0.1g/mL hydroxyethylcellulose, adds 0.01g/mL ammonium nitrate again, stirs, and blade coating is 1 micron of conductive glass surface.The electro-conductive glass that scribbles chloroplatinic acid is put into sintering furnace,, take out after slowly cooling to room temperature, promptly obtain porous platinum electrode at 300 ℃ of following insulation 30min.
Embodiment 3
In concentration is in the 0.05g/mL chloroplatinic acid aqueous solution, adds 0.06g/mL polyethylene glycol (molecular weight 500) and 0.04g/mL hydroxyethylcellulose, adds 0.03g/mL ammonium chloride again, stirs, and is sprayed on 0.5 micron of conductive glass surface.The electro-conductive glass that scribbles chloroplatinic acid is put into sintering furnace,, take out after slowly cooling to room temperature, promptly obtain porous platinum electrode at 450 ℃ of following insulation 20min.
Embodiment 4
In concentration is in the 0.03g/mL chloroplatinic acid aqueous solution, adds 0.2g/mL polyethylene glycol (molecular weight 2000) and 0.1g/mL hydroxyethylcellulose, adds the 0.02g/mL carbon nano-tube again, stirs, and silk screen printing is 0.1 micron of conductive glass surface.The electro-conductive glass that scribbles chloroplatinic acid is put into sintering furnace,, take out after slowly cooling to room temperature, promptly obtain porous platinum electrode at 400 ℃ of following insulation 25min.
Under the identical situation of all other conditions, the embodiment of the invention 1 porous platinum electrode and common platinum electrode are formed the solar cell that effective area is 1.5cm * 1.5cm respectively, adopt the I-V curve of two kinds of batteries of CHI600C electrochemical workstation test, the gained result as shown in Figure 2.
The battery performance that experimental result from accompanying drawing 2, porous platinum electrode are formed obviously is better than the battery that electrode that commonsense method makes is formed.Porous platinum electrode has big facilitation for the raising of short circuit current and battery efficiency, and wherein short circuit current is brought up to 3.43mA by 3.03mA, and the lifting amplitude reaches 10%.
Claims (3)
1. the preparation method of the porous platinum electrode of a solar cell, it is characterized in that, in concentration is in the 0.01-0.05g/mL chloroplatinic acid aqueous solution, add polyethylene glycol and hydroxyethylcellulose 0.1-0.4g/mL, fully after the dissolving, the inorganic ammonium salt powder that adds 0.01-0.03g/mL nano-scale carbon powder, carbon nano-tube again or be heated and be decomposed into gas fully, stir, be coated in conductive glass surface, thickness is the 0.1-1 micron, through 20-30 minute sintering, sintering temperature was 350~450 ℃, formed the platinum electrode with loose structure; The weight ratio of described adding polyethylene glycol and hydroxyethylcellulose is 3-1.5: 1; The described inorganic salts powder that is decomposed into gas fully that is heated is ammonium chloride, ammonium nitrate or amine perchlorate.
2. the preparation method of the porous platinum electrode of solar cell as claimed in claim 1 is characterized in that, the molecular weight ranges of described polyethylene glycol is 200~2000.
3. the preparation method of the porous platinum electrode of solar cell as claimed in claim 1 or 2 is characterized in that, the method for described coating is spin coating, spraying, blade coating or silk screen printing.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102522463A (en) * | 2012-01-12 | 2012-06-27 | 黑龙江大学 | Preparation method of poly(5-trifluoromethyl-1,3-phenylenediamine)/laminar platinum particula film |
CN102543256A (en) * | 2012-03-14 | 2012-07-04 | 奇瑞汽车股份有限公司 | Chloroplatinic acid slurry, preparation method thereof, counter electrode, and dye-sensitized solar cell |
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CN101515505B (en) * | 2009-03-31 | 2011-04-13 | 彩虹集团公司 | Method for preparing platinum electrode of dye sensitized solar cell |
CN101645353B (en) * | 2009-09-04 | 2011-12-07 | 新奥科技发展有限公司 | Chloroplatinic acid slurry and preparation method and application thereof |
CN101707140B (en) * | 2009-11-23 | 2011-10-26 | 新奥科技发展有限公司 | Method for preparing platinum counter electrode of dye-sensitized solar cell and platinum counter electrode |
CN101823689B (en) * | 2010-02-20 | 2012-12-26 | 哈尔滨工业大学 | Method for preparing porous metal oxide-coated carbon nanotube composite material |
CN102231331A (en) * | 2011-03-29 | 2011-11-02 | 彩虹集团公司 | Method for preparing counter electrode of dye-sensitized solar cell |
CN103331157B (en) * | 2013-07-15 | 2015-03-04 | 北京化工大学 | Hierarchical pore Pt catalyst with high catalytic activity and preparation method |
CN112851407A (en) * | 2021-01-22 | 2021-05-28 | 昆明理工大学 | Preparation method of low-temperature thin platinum coating |
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Citations (1)
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CN1719618A (en) * | 2004-07-06 | 2006-01-11 | 通用电气公司 | Passivated, dye-sensitized oxide semiconductor electrode, solar cell using same, and method |
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CN1719618A (en) * | 2004-07-06 | 2006-01-11 | 通用电气公司 | Passivated, dye-sensitized oxide semiconductor electrode, solar cell using same, and method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102522463A (en) * | 2012-01-12 | 2012-06-27 | 黑龙江大学 | Preparation method of poly(5-trifluoromethyl-1,3-phenylenediamine)/laminar platinum particula film |
CN102522463B (en) * | 2012-01-12 | 2013-12-25 | 黑龙江大学 | Preparation method of poly(5-trifluoromethyl-1,3-phenylenediamine)/laminar platinum particula film |
CN102543256A (en) * | 2012-03-14 | 2012-07-04 | 奇瑞汽车股份有限公司 | Chloroplatinic acid slurry, preparation method thereof, counter electrode, and dye-sensitized solar cell |
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