CN103606461B - A kind of preparation method of the light anode of Graphene composite solar battery - Google Patents
A kind of preparation method of the light anode of Graphene composite solar battery Download PDFInfo
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- CN103606461B CN103606461B CN201310509547.XA CN201310509547A CN103606461B CN 103606461 B CN103606461 B CN 103606461B CN 201310509547 A CN201310509547 A CN 201310509547A CN 103606461 B CN103606461 B CN 103606461B
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Abstract
The preparation method that the present invention relates to the light anode of a kind of Graphene composite solar battery, described preparation method is to be coated with to scrape by the composite material of inorganic nanoparticles and Graphene to prepare graphene composite film at base material surface, then on prepared laminated film, blade coating hybrid particles degree titanium dioxide makes mixed slurry with hydroxyethyl cellulose and isopropanol again, proceed the sintering of 500 DEG C, obtain the light anode that Graphene is compounded with the solaode of titanium dioxide scattering coating.Light anode prepared by the preparation method of the present invention has good electric conductivity, also there is good heat conductivity and mechanical property simultaneously, its production cost is very low, preparation method is simple, there is solution processability, processing and forming is good, it is not necessary to large complicated instrument just can prepare the sample of various sizes and shape.
Description
Technical field
The invention belongs to field of dye-sensitized solar cells, the preparation method particularly relating to the light anode of a kind of Graphene composite solar battery.
Background technology
DSSC mainly includes light anode, photocathode, dyestuff and four parts of electrolyte, although battery efficiency is also had considerable influence by photocathode, dyestuff and electrolyte preparation method, but the efficiency of dye-sensitized cell conversion depends greatly on the preparation of light anode slurry.
Graphene is a kind of monolayer carbon atomic plane material separated from graphite material, is the two-dimensional structure of carbon, in the form of sheets structure, it is also possible to be called graphene film.Graphene has very high electron mobility, electronics movement velocity in Graphene is considerably beyond electronics movement velocity in general conductor, therefore, Graphene is compound in semiconductor nano epitaxial and is expected to make DSSC photovoltaic energy conversion efficiency be improved.
Summary of the invention
The preparation method that the invention provides the light anode of a kind of Graphene composite solar battery, the light anode of this graphene composite dye-sensitized solar cell can reduce the extinction area of light induced electron and electrolytical compound reduction Graphene, add bulky grain titanium dioxide scattering layer, thus being greatly improved the photovoltaic energy conversion efficiency of DSSC simultaneously.
In order to solve the technical problem of above-mentioned existence, present invention employs below scheme:
The preparation method of the light anode of a kind of Graphene composite solar battery, it is characterised in that comprise the steps:
Step one: having water miscible single or multiple lift Graphene and be dissolved in water or organic solvent DMF, ultrasonic Treatment is completely dissolved to it;
Step 2: the graphene solution mix homogeneously that inorganic nanoparticles, the first step obtained also carries out ultrasonic disperse 1-5h and obtains composite material, and wherein inorganic nanoparticles and Graphene account for mass percent respectively 45%-90%, the 10%-55% of gross mass;
Step 3: step 2 is obtained composite material blade coating to the surface of base material; 50h-80h is placed under room temperature; obtain the laminated film of single or multiple lift Graphene after drying, then by the laminated film of single or multiple lift Graphene under the protection of nitrogen, after roasting, obtain the laminated film of Graphene；
Step 4: mixed with the ratio that mass ratio is 3-5:17 with the titanium dioxide that granularity is 0.3-0.5 μm by the titanium dioxide that granularity is 20-80nm, grinds, then with hydroxyethyl cellulose and isopropanol, the mixed powder obtained is made mixed slurry；
Step 5: the mixed slurry blade coating again prepared in the laminated film step 4 of Graphene step 3 obtained, then proceeds by the sintering of 500 DEG C, obtains the light anode that Graphene is compounded with the solaode of titanium dioxide scattering coating.
The concentration of graphene solution described in step one is 15-25mg/m1.
Inorganic nanoparticles described in step 2 is indium sesquioxide and silicon dioxide is the 1:1 mixture prepared according to mass ratio.
Base material described in step 3 is transparent conducting glass, metallic substrates or material with carbon element substrate.
Sintering temperature described in step 3 is 700-750 DEG C.
Mixed powder described in step 4 is that 3:1:6 makes mixed slurry with hydroxyethyl cellulose and isopropanol according to mass ratio.
Wherein, there is water miscible single or multiple lift Graphene obtained by graphite chemical oxidation method or graphite organic functional method.
The preparation method of the light anode of this Graphene composite solar battery has the advantages that
The preparation method of the present invention have employed the mixed system of indium sesquioxide and silicon dioxide for inorganic nanoparticles, giving the optimum range that inorganic nanoparticles mixes with graphene film, the photovoltaic energy conversion efficiency of the light anode of the solaode prepared within the scope of this is greatly improved simultaneously.
On prepared graphene composite film, blade coating hybrid particles degree titanium dioxide and hydroxyethyl cellulose and isopropanol make mixed slurry to the present invention again, be equivalent to the addition of one layer of oarse-grained reflecting layer on surface, bulky grain reflecting layer serves the effect of better raising efficiency, after adding bulky grain reflecting layer, photovoltaic energy conversion efficiency can be further increased to about 8.5%.
Light anode prepared by the preparation method of the present invention has good electric conductivity, also there is good heat conductivity and mechanical property simultaneously, and its production cost is very low, preparation method is simple, there is solution processability, processing and forming is good, it is not necessary to large complicated instrument just can prepare the sample of various sizes and shape.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described:
Embodiment 1
The preparation method of the light anode of Graphene composite solar battery, comprises the steps:
Step one: having water miscible single or multiple lift Graphene and be dissolved in water or organic solvent DMF, ultrasonic Treatment is completely dissolved to it;The concentration of graphene solution is 15mg/m1.
Step 2: the graphene solution mix homogeneously that inorganic nanoparticles, the first step obtained also carries out ultrasonic disperse 1h and obtains composite material, wherein inorganic nanoparticles and Graphene account for the mass percent of gross mass respectively 45%, and 55%;Inorganic nanoparticles is indium sesquioxide and silicon dioxide is the 1:1 mixture prepared according to mass ratio.
Step 3: step 2 is obtained composite material blade coating to the surface of base material; 50h is placed under room temperature; the laminated film of single or multiple lift Graphene is obtained after drying; then, by the laminated film of single or multiple lift Graphene under the protection of nitrogen, under 700 DEG C of conditions, the laminated film of Graphene after roasting, is obtained；Base material is transparent conducting glass.
Step 4: the titanium dioxide that granularity is 20-80nm is mixed with the ratio that mass ratio is 3:17 with the titanium dioxide that granularity is 0.3-0.5 μm, grind, then be that 3:1:6 makes mixed slurry by the mixed powder obtained and hydroxyethyl cellulose and isopropanol according to mass ratio.
Step 5: the mixed slurry blade coating again prepared in the laminated film step 4 of Graphene step 3 obtained, then proceeds by the sintering of 500 DEG C, obtains the light anode that Graphene is compounded with the solaode of titanium dioxide scattering coating.Adopt above-mentioned complex light anode, reach 8.43% with the photovoltaic energy conversion efficiency of the N719 DSSC being preparation of dyestuff.
Embodiment 2
The preparation method of the light anode of Graphene composite solar battery, comprises the steps:
Step one: having water miscible single or multiple lift Graphene and be dissolved in water or organic solvent DMF, ultrasonic Treatment is completely dissolved to it;The concentration of graphene solution is 25mg/m1.
Step 2: the graphene solution mix homogeneously that inorganic nanoparticles, the first step obtained also carries out ultrasonic disperse 5h and obtains composite material, wherein inorganic nanoparticles and Graphene account for the mass percent of gross mass respectively 80%, and 20%;Inorganic nanoparticles is indium sesquioxide and silicon dioxide is the 1:1 mixture prepared according to mass ratio.
Step 3: step 2 is obtained composite material blade coating to the surface of base material; 80h is placed under room temperature; the laminated film of single or multiple lift Graphene is obtained after drying; then, by the laminated film of single or multiple lift Graphene under the protection of nitrogen, under 750 DEG C of conditions, the laminated film of Graphene after roasting, is obtained；Base material is metallic substrates.
Step 4: the titanium dioxide that granularity is 20-80nm is mixed with the ratio that mass ratio is 5:17 with the titanium dioxide that granularity is 0.3-0.5 μm, grind, then be that 3:1:6 makes mixed slurry by the mixed powder obtained and hydroxyethyl cellulose and isopropanol according to mass ratio.
Step 5: the mixed slurry blade coating again prepared in the laminated film step 4 of Graphene step 3 obtained, then proceeds by the sintering of 500 DEG C, obtains the light anode that Graphene is compounded with the solaode of titanium dioxide scattering coating.Adopt above-mentioned complex light anode, reach 8.72% with the photovoltaic energy conversion efficiency of the N719 DSSC being preparation of dyestuff.
Embodiment 3
The preparation method of the light anode of Graphene composite solar battery, comprises the steps:
Step one: having water miscible single or multiple lift Graphene and be dissolved in water or organic solvent DMF, ultrasonic Treatment is completely dissolved to it;The concentration of graphene solution is 20mg/m1.
Step 2: the graphene solution mix homogeneously that inorganic nanoparticles, the first step obtained also carries out ultrasonic disperse 4h and obtains composite material, wherein inorganic nanoparticles and Graphene account for the mass percent of gross mass respectively 50%, and 50%;Inorganic nanoparticles is indium sesquioxide and silicon dioxide is the 1:1 mixture prepared according to mass ratio.
Step 3: step 2 is obtained composite material blade coating to the surface of base material; 60h is placed under room temperature; the laminated film of single or multiple lift Graphene is obtained after drying; then, by the laminated film of single or multiple lift Graphene under the protection of nitrogen, under 700 DEG C of conditions, the laminated film of Graphene after roasting, is obtained；Base material is material with carbon element substrate.
Step 4: the titanium dioxide that granularity is 20-80nm is mixed with the ratio that mass ratio is 4:17 with the titanium dioxide that granularity is 0.3-0.5 μm, grind, then be that 3:1:6 makes mixed slurry by the mixed powder obtained and hydroxyethyl cellulose and isopropanol according to mass ratio.
Step 5: the mixed slurry blade coating again prepared in the laminated film step 4 of Graphene step 3 obtained, then proceeds by the sintering of 500 DEG C, obtains the light anode that Graphene is compounded with the solaode of titanium dioxide scattering coating.Adopt above-mentioned complex light anode, reach 8.66% with the photovoltaic energy conversion efficiency of the N719 DSSC being preparation of dyestuff.
Above in conjunction with specific embodiment, the present invention is carried out exemplary description; the realization of the obvious present invention is not subject to the restrictions described above; as long as have employed the various improvement that the design of the method for the present invention carries out with technical scheme; or the not improved design by the present invention and technical scheme directly apply to other occasion, all in protection scope of the present invention.
Claims (1)
1. the preparation method of the light anode of a Graphene composite solar battery, it is characterized in that comprising the steps: step one: will have water miscible single or multiple lift Graphene and be dissolved in water or organic solvent N, in dinethylformamide, ultrasonic Treatment is completely dissolved to it;The concentration of graphene solution described in step one is 15-25mg/m1；Step 2: the graphene solution mix homogeneously that inorganic nanoparticles, the first step obtained also carries out ultrasonic disperse 1-5h and obtains composite material, and wherein inorganic nanoparticles and Graphene account for mass percent respectively 45%-90%, the 10%-55% of gross mass；Inorganic nanoparticles described in step 2 is indium sesquioxide and silicon dioxide is the 1:1 mixture prepared according to mass ratio；Step 3: step 2 is obtained composite material blade coating to the surface of base material; 50h-80h is placed under room temperature; obtain the laminated film of single or multiple lift Graphene after drying, then by the laminated film of single or multiple lift Graphene under the protection of nitrogen, after roasting, obtain the laminated film of Graphene；Base material described in step 3 is transparent conducting glass, metallic substrates or material with carbon element substrate；Sintering temperature described in step 3 is 700-750 DEG C；Step 4: mixed with the ratio that mass ratio is 3-5:17 with the titanium dioxide that granularity is 0.3-0.5 μm by the titanium dioxide that granularity is 20-80nm, grinds, then with hydroxyethyl cellulose and isopropanol, the mixed powder obtained is made mixed slurry；Mixed powder described in step 4 is that 3:1:6 makes mixed slurry with hydroxyethyl cellulose and isopropanol according to mass ratio；Step 5: the mixed slurry blade coating again prepared in the laminated film step 4 of Graphene step 3 obtained, then proceeds by the sintering of 500 DEG C, obtains the light anode that Graphene is compounded with the solaode of titanium dioxide scattering coating.
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Citations (5)
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| CN101777429A (en) * | 2010-02-10 | 2010-07-14 | 中国科学院上海硅酸盐研究所 | Graphene-based dye-sensitized solar cell complex light anode and preparation method |
| CN102074373A (en) * | 2011-01-22 | 2011-05-25 | 上海联孚新能源科技有限公司 | Dye-sensitized solar battery light anode and preparation method thereof |
| CN102231331A (en) * | 2011-03-29 | 2011-11-02 | 彩虹集团公司 | Method for preparing counter electrode of dye-sensitized solar cell |
| CN102513079A (en) * | 2011-11-22 | 2012-06-27 | 南京工业大学 | Controllable crystalline form titanium dioxide and graphite alkene composite material with high efficient photoelectricity activity and preparation method thereof |
| CN102751098A (en) * | 2012-06-26 | 2012-10-24 | 北京交通大学 | Photoanode of dye-sensitized solar cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777429A (en) * | 2010-02-10 | 2010-07-14 | 中国科学院上海硅酸盐研究所 | Graphene-based dye-sensitized solar cell complex light anode and preparation method |
| CN102074373A (en) * | 2011-01-22 | 2011-05-25 | 上海联孚新能源科技有限公司 | Dye-sensitized solar battery light anode and preparation method thereof |
| CN102231331A (en) * | 2011-03-29 | 2011-11-02 | 彩虹集团公司 | Method for preparing counter electrode of dye-sensitized solar cell |
| CN102513079A (en) * | 2011-11-22 | 2012-06-27 | 南京工业大学 | Controllable crystalline form titanium dioxide and graphite alkene composite material with high efficient photoelectricity activity and preparation method thereof |
| CN102751098A (en) * | 2012-06-26 | 2012-10-24 | 北京交通大学 | Photoanode of dye-sensitized solar cell |
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Inventor after: Liang Hejun Inventor after: Shang Jingbo Inventor before: Yin Fengbao |
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Effective date of registration: 20161216 Address after: 200433 Shanghai City, Yangpu District National Road No. 777 Patentee after: Liang Hejun Patentee after: Shang Jingbo Address before: Jiangdong District 315040 Zhejiang city of Ningbo province was driving road No. 1088 building 001 room 05 (4-1) Patentee before: Yin Fengbao |
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Granted publication date: 20160706 Termination date: 20191025 |