CN101866747A - Method for preparing compact layer of dye-sensitized solar cell - Google Patents
Method for preparing compact layer of dye-sensitized solar cell Download PDFInfo
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- CN101866747A CN101866747A CN 201010205936 CN201010205936A CN101866747A CN 101866747 A CN101866747 A CN 101866747A CN 201010205936 CN201010205936 CN 201010205936 CN 201010205936 A CN201010205936 A CN 201010205936A CN 101866747 A CN101866747 A CN 101866747A
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- conductive glass
- solar cell
- electrically conductive
- dye
- sensitized solar
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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
-
- 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
- Y02E10/549—Organic PV cells
Abstract
The invention discloses a method for preparing a compact layer of a dye-sensitized solar cell. The method comprises the following steps of: blending a titanium source and an organic solvent in a volume percentage ratio of (2-10): 100 to prepare immersion solution for later use; immersing clean electrically conductive glass in the solution and then taking the electrically conductive glass out, re-immersing the electrically conductive glass in the solution and taking the electrically conductive glass out again, wherein the electrically conductive glass is continuously immersed for three times, and the immersion time is 5 to 10 seconds for each time; taking the electrically conductive glass out after the immersion is finished; drying the electrically conductive glass in air and then sintering the dried electrically conductive glass in a muffle furnace at the temperature of between 450 and 550 DEG C for 30 and 60 minutes; and naturally cooling the sintered product to obtain a compact titanium oxide film layer on the surface of the electrically conductive glass. The compact layer of the dye-sensitized solar cell prepared by the method can improve the adhesion of the TiO2 film, prevent the composition between iodine ions in an electrolyte and photoelectrons in the TiO2 at the same time and improve the photoelectric conversion efficiency of the solar cell.
Description
Technical field
The present invention relates to technical field of solar batteries, particularly a kind of preparation method of compact layer of dye-sensitized solar cell.
Background technology
Entered since 21 century, the energy field that the mankind face and the problem of environmental area become increasingly conspicuous.Be the great demand of economic development on the one hand to the energy, be that traditional fossil energy that coal, oil, natural gas etc. were put aside 1 years has irreversibly moved towards exhausted through the huge consumption in hundreds of years on the other hand, and can produce serious harm to biological environment in traditional exploitation of fossil energy resources process.How effectively to solve two big realistic problems and more and more cause extensive concern both domestic and external.
Solar energy is the green regenerative energy sources the most extensive, that stock number is maximum that distributes on the earth.Solar cell is one of most important approach of development and use solar energy, and development at present is comparatively ripe mainly is in occupation of the silica-based solar cell of dominant position on market.Though it has higher transformation efficiency, complex manufacturing technology, to the material requirements harshness, production cost is high, and large-scale practicability also has difficulties.DSSC will become the representative of solar cell of new generation with its lower cost of manufacture and simple production technology.
The dye-sensitized nano solar cell is because the light anode of battery is exposed in the electrolyte TiO fully
2With the iodide ion generation recombination reaction in suprabasil light induced electron of electro-conductive glass and the electrolyte, reduce the photoelectric conversion efficiency of battery.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of compact layer of dye-sensitized solar cell, this method can reduce the DSSC loss of electrons, reduce electron recombination, can also improve TiO simultaneously
2Adhesion of thin film, the useful life of prolongation battery.
A kind of preparation method of compact layer of dye-sensitized solar cell, it is characterized in that: with titanium source and organic solvent percentage (2-10) by volume: 100 mixed, it is stand-by to be mixed with soaking solution, getting clean electro-conductive glass is immersed in the described solution, through soaking, propose, soak again, reintroduce, continuous dipping is more than 3 times, each soak time 5-10 second, finish soak take out after, treat that electro-conductive glass dries, put into Muffle furnace and carry out sintering, 450 ℃-550 ℃ of sintering temperatures, temperature retention time 30min-60min promptly forms the titanium deoxid film layer of one deck densification naturally at conductive glass surface after the cooling.
Described electro-conductive glass is ito glass or FTO glass.
Described titanium source comprises a kind of in butyl titanate, tetraisopropyl titanate, the titanium tetrachloride.
Described organic solvent has ethanol, isopropyl alcohol, benzinum.
The DSSC reaction principle is analyzed:
TiO
2|S+hv?→TiO
2|S* （1）
TiO
2|S*→TiO
2|S++ecb- （2）
I3-+e(Pt)-→I- （3）
TiO
2|S++I-→TiO
2|S+I3- （4）
TiO
2|S++ecb-→TiO
2|S （5）
I3-+?ecb-→?I- （6）
(1) solar irradiation is mapped on the sensitization electrode, and the electronics induced transition of dye molecule (S) is to excitation state (S*); (2) electronics of excitation state (S*) injects the conduction band of semiconductor titanium deoxid film, self becomes oxidation state (S+), and CB represents at the bottom of the TiO2 conduction band; (3) I3-platinum plating to electrode on obtain electronics and be reduced to I-; (4) dye molecule of oxidation state (S+) is regenerated by the electronics of accepting I-and providing; (5) be injected into TiO
2Compound between conduction band bottom electron and the oxidation state dyestuff (S+), this process can reduce the quantity that flow into electronics in the external circuit, reduces the photoelectric current of battery; (6) TiO
2Conduction band bottom electron and I3-'s is compound, and this reaction can cause the loss of photoelectric current, and this reaction plays a decisive role.Therefore photoelectric current to be improved, the reaction of (5) and (6) must be suppressed as much as possible.
The compact layer of dye-sensitized solar cell that adopts the present invention to make can improve TiO
2Adhesion of thin film, it is compound to prevent in iodide ion in the electrolyte and the titanium dioxide that photoelectron produces, and suppresses above-mentioned reaction (6), therefore, the photoelectric conversion efficiency that improves solar cell is played a key effect.
Embodiment
Embodiment 1:
With the butyl titanate is titanium source raw material, is organic solvent with the isopropyl alcohol, the preparation compact layer of dye-sensitized solar cell.Slowly splash into the 10ml butyl titanate under the isopropyl alcohol vigorous stirring with 100ml, be configured to solution behind the stirring 30min.Get clean ITO electro-conductive glass, electro-conductive glass one end protects with adhesive tape, and electro-conductive glass is fully immersed in the solution, takes out behind the 5s, and then is immersed in the solution, and sheet glass gets final product after soaking 3 solution.Treat that the ITO electro-conductive glass dries, be put into and carry out sintering in the Muffle furnace, 450 ℃ of sintering temperatures, temperature retention time 60min, take out the cooling back naturally, and the compacted zone preparation of dye-sensitized solar cell anode is finished.
Embodiment 2:
With the butyl titanate is titanium source raw material, is organic solvent with the benzinum, the preparation compact layer of dye-sensitized solar cell.Slowly splash into the 8ml butyl titanate under the isopropyl alcohol vigorous stirring with 100ml, be configured to solution behind the stirring 30min.Get clean FTO electro-conductive glass, electro-conductive glass one end protects with adhesive tape, then electro-conductive glass is fully immersed in the solution, takes out behind the 8s, and then is immersed in the solution.Sheet glass gets final product after soaking 3 solution.Treat that the FTO electro-conductive glass dries, be put into and carry out sintering in the Muffle furnace, 550 ℃ of sintering temperatures, temperature retention time 30min, take out the cooling back naturally, and the compacted zone preparation of dye-sensitized solar cell anode is finished.
Embodiment 3:
With the tetraisopropyl titanate is titanium source raw material, is organic solvent with the isopropyl alcohol, the preparation compact layer of dye-sensitized solar cell.Slowly splash into the 5ml tetraisopropyl titanate under the isopropyl alcohol vigorous stirring with 100ml, be configured to solution behind the stirring 30min.Get clean ITO electro-conductive glass, electro-conductive glass one end protects with adhesive tape, and electro-conductive glass is fully immersed in the solution, takes out behind the 10s, and then is immersed in the solution, and sheet glass gets final product after soaking 3 solution.Treat that the ITO electro-conductive glass dries, be put into and carry out sintering in the Muffle furnace, 500 ℃ of sintering temperatures, temperature retention time 45min, take out the cooling back naturally, and the compacted zone preparation of dye-sensitized solar cell anode is finished.
Embodiment 4:
With the titanium tetrachloride is titanium source raw material, is organic solvent with ethanol, the preparation compact layer of dye-sensitized solar cell.Slowly splash into the 2ml titanium tetrachloride under the ethanol vigorous stirring with 100ml, be configured to solution behind the stirring 30min.Get clean FTO electro-conductive glass, electro-conductive glass one end protects with adhesive tape, and electro-conductive glass is fully immersed in the solution, takes out behind the 5s, and then is immersed in the solution, and sheet glass gets final product after soaking 3 solution.Treat that ito glass dries, be put into and carry out sintering in the Muffle furnace, 480 ℃ of sintering temperatures, temperature retention time 55min, take out the cooling back naturally, and the compacted zone preparation of dye-sensitized solar cell anode is finished.
Claims (4)
1. the preparation method of a compact layer of dye-sensitized solar cell, it is characterized in that: with titanium source percentage (2-10) by volume: 100 ratio joins and stirs in the organic solvent that to be mixed with soaking solution stand-by, getting clean electro-conductive glass is immersed in the described solution, through soaking, propose, soak again, reintroduce ... continuous dipping is more than 3 times, each soak time 5-10 second, finish soak take out after, treat that electro-conductive glass dries, carry out sintering then, 450 ℃-550 ℃ of sintering temperatures, temperature retention time 30min-60min promptly forms the titanium deoxid film layer of one deck densification naturally at conductive glass surface after the cooling.
2. a kind of compact layer of dye-sensitized solar cell preparation method according to claim 1 is characterized in that described electro-conductive glass is ito glass or FTO glass.
3. a kind of compact layer of dye-sensitized solar cell preparation method according to claim 1 is characterized in that described titanium source comprises a kind of in butyl titanate, tetraisopropyl titanate, the titanium tetrachloride.
4. a kind of compact layer of dye-sensitized solar cell preparation method according to claim 1 is characterized in that described organic solvent has a kind of in ethanol, isopropyl alcohol, the benzinum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010205936 CN101866747A (en) | 2010-06-22 | 2010-06-22 | Method for preparing compact layer of dye-sensitized solar cell |
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| CN 201010205936 CN101866747A (en) | 2010-06-22 | 2010-06-22 | Method for preparing compact layer of dye-sensitized solar cell |
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| CN101866747A true CN101866747A (en) | 2010-10-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163501A (en) * | 2011-03-02 | 2011-08-24 | 东莞宏威数码机械有限公司 | Method for modifying photoanode of dye-sensitized solar cell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226966A (en) * | 2008-01-22 | 2008-07-23 | 西安交通大学 | Customizing electroconductive film of dye sensitization TiO2 nanocrystalline solar battery and preparation thereof |
| CN101452772A (en) * | 2009-01-04 | 2009-06-10 | 上海大学 | Dye sensitization solar cell electrode and method for making same |
| CN101515504A (en) * | 2009-04-07 | 2009-08-26 | 东南大学 | Conductive glass of dye-sensitized solar cell |
-
2010
- 2010-06-22 CN CN 201010205936 patent/CN101866747A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226966A (en) * | 2008-01-22 | 2008-07-23 | 西安交通大学 | Customizing electroconductive film of dye sensitization TiO2 nanocrystalline solar battery and preparation thereof |
| CN101452772A (en) * | 2009-01-04 | 2009-06-10 | 上海大学 | Dye sensitization solar cell electrode and method for making same |
| CN101515504A (en) * | 2009-04-07 | 2009-08-26 | 东南大学 | Conductive glass of dye-sensitized solar cell |
Non-Patent Citations (1)
| Title |
|---|
| 《功能材料》 20080731 陈尧 等 浸渍提拉法修饰阳极对DSSC性能的影响 第1147页右栏1-6段，表1 1-4 第39卷, 第7期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163501A (en) * | 2011-03-02 | 2011-08-24 | 东莞宏威数码机械有限公司 | Method for modifying photoanode of dye-sensitized solar cell |
| CN102163501B (en) * | 2011-03-02 | 2012-05-23 | 东莞宏威数码机械有限公司 | Method for modifying photoanode of dye-sensitized solar cell |
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Inventor after: Liu Wenxiu Inventor after: Yang Zhijun Inventor before: Yang Zhijun |
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Application publication date: 20101020 |