CN102142317A - Solar battery with graphite interface layer and manufacturing method thereof - Google Patents
Solar battery with graphite interface layer and manufacturing method thereof Download PDFInfo
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- CN102142317A CN102142317A CN 201110008566 CN201110008566A CN102142317A CN 102142317 A CN102142317 A CN 102142317A CN 201110008566 CN201110008566 CN 201110008566 CN 201110008566 A CN201110008566 A CN 201110008566A CN 102142317 A CN102142317 A CN 102142317A
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Abstract
The invention discloses a solar battery with a graphite interface layer and a manufacturing method thereof. The solar battery comprises conducting glass, a thin oxide film, an electrolyte and a pair of electrodes, wherein the graphite interface layer is arranged between the conducting glass and the thin oxide film. A graphite oxide suspension is sprayed to the conducting glass, and the graphite oxide sprayed to the conducting glass is reduced to graphite at high temperature in a reducing or inert atmosphere. By using high conductivity and an appropriate energy band structure of graphite, the graphite interface layer is introduced between the conducting glass and the thin oxide film, so that the electrolyte can be effectively prevented from touching the conducting glass, the compounding possibility between photogenerated electrons and the electrolyte is reduced, the back reaction process is inhibited, and the photoelectric properties of the battery are improved.
Description
Technical field
The present invention relates to a kind of solar cell and preparation method thereof, specifically, relate to a kind of Graphene boundary layer of between electro-conductive glass and sull, introducing, in order to suppress sensitization solar cell of carrying on the back course of reaction and preparation method thereof.
Technical background
One of lack of energy three big challenges that to be human society face in 21 century, therefore developing reproducible novel energy is the human key subjects of needing solution in this century badly.In various regenerative resources, solar energy is with advantages such as its " inexhaustible " and environmental friendliness, applicability are extensive, most possibly substitutes fossil fuel and becomes following main energy sources form.At present, it is to make solar cell that people utilize the main method of solar energy, becomes electric energy to be used solar energy converting.In miscellaneous solar cell, the sensitization solar cell has advantages such as electricity conversion height, preparation technology is simple, the prices of raw and semifnished materials are cheap, has become a kind of novel solar cell that various countries competitively research and develop.In general, the sensitization solar cell is by conductive substrates, light anode (comprising oxidate nano perforated membrane and light-sensitive coloring agent), oxidation/go back original electrolyte and electrode is formed.
Though the sensitization solar cell has many potential advantages, its efficient and practical application come to improve than being still waiting.Influencing one of further reason that improves of sensitization efficiency of solar cell is to have back of the body course of reaction (Back-transport reaction) at inside battery.Specifically, electrolyte can penetrate into the electro-conductive glass place by the hole in the light anode, and can be compound with the light induced electron generation on the electro-conductive glass, forms so-called back of the body course of reaction.With the most frequently used iodine and lithium iodide (I
2/ LiI) electrolyte is example, reaction equation is 2e
-+ I
3 -→ 3I
-, as shown in Figure 1.The back of the body course of reaction of battery has reduced effective output of light induced electron, has influenced the electricity conversion of battery.Therefore as seen, stop electrolyte directly to contact, can effectively suppress the back of the body course of reaction of battery, thereby can significantly strengthen its photoelectric properties with electro-conductive glass.
Summary of the invention
The back of the body course of reaction that the objective of the invention is to overcome sensitization solar cell in the prior art reduces the problem of its photoelectric properties, and a kind of sensitization solar cell and preparation method with higher electricity conversion is provided.
Purpose of the present invention is achieved by following technical proposals:
A kind of solar cell with Graphene boundary layer is formed by electro-conductive glass, light anode, electrolyte with to electrode, is provided with the Graphene boundary layer between described electro-conductive glass and the light anode.
Described electro-conductive glass be the indium tin oxide electro-conductive glass (Indium tin oxides, ITO) or fluorine tin-oxide electro-conductive glass (Fluorin in oxides, FTO).
Described Graphene boundary layer is evenly distributed on the electro-conductive glass, is made up of 1-10 layer monolayer carbon atom, and thickness is 0.35-4nm.
Described smooth anode is a sensitization light anode, form by sensitized material and porous oxide film, wherein said porous oxide film is titanium oxide, zinc oxide, tin oxide, tungsten oxide, zirconia or niobium oxide, and described sensitized material is at least a in dye photoactivation agent or the quantum dot light sensitizer.
Described dye photoactivation agent is normal Bipyridine metal complexes series, phenol cyanines series, porphyrin series, the pure organic dyestuff series of using in the solar cell field, as the bipyridyl ruthenium complex compound, and N3, N719, Z907, Black dye.
Described quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot.
Described electrolyte can be selected solar cell field electrolyte solution commonly used, organic solution electrolyte for example, and wherein solute is iodine and lithium iodide, solution is the nitrile that is in a liquid state under the normal temperature.
A kind of preparation has the solar cell of Graphene boundary layer, carries out according to following step:
(1) with graphite oxide in organic solvent for ultrasonic, form suspension
(2) graphite oxide suspension is sprayed on the electro-conductive glass
(3) under reproducibility or inert atmosphere, the graphite oxide that is sprayed on the electro-conductive glass is reduced into Graphene, on electro-conductive glass, obtain the Graphene boundary layer
(4) oxide nanocrystalline powder, polyethylene glycol, deionized water are put into mortar, grind and obtain oxide slurry, oxide slurry is coated on the electro-conductive glass that has the Graphene boundary layer again, sintering obtains the porous oxide film
(5) with the electro-conductive glass that has Graphene boundary layer and porous oxide film of step (4) preparation, immerse photosensitizer solution, make the light anode
(6) with electro-conductive glass, Graphene boundary layer, light anode with electrolyte, electrode is encapsulated, make the solar cell that has the Graphene boundary layer.
In the described step (1), a kind of in the aromatics, fat hydrocarbon, alicyclic hydrocarbon type, halogenated hydrocarbons, alcohols, ethers, ester class or the organic solvent of ketone that are in a liquid state at normal temperatures of organic solvent; The concentration of graphite oxide is 0.05-0.50mg/ml.
In the described step (2), described electro-conductive glass is indium tin oxide electro-conductive glass or fluorine tin-oxide electro-conductive glass.
In the described step (2), when spraying, carrier gas is a kind of in air, nitrogen, helium, neon, argon gas or the carbon dioxide; Carrier gas flux is 100-1000sccm; Spray time is 1-3min; The electro-conductive glass temperature is 60-90 ℃.
In the described step (3), described reproducibility or inert atmosphere are a kind of in hydrogen, carbon monoxide, methane, helium, neon or the argon gas, and reduction temperature is 250-350 ℃, and the recovery time is 30-120min.
In the described step (4), described oxide nanocrystalline powder is a kind of in titanium dioxide, zinc oxide, tin oxide, tungsten oxide, zirconia or the niobium oxide.
In the described step (4), treat the oxide slurry drying after, sintering in the mixed atmosphere of oxygen and argon gas, sintering time are 30-60min, temperature is 300-450 ℃, the mol ratio of oxygen and argon gas is (1: 5)-(1: 2).
In the described step (5), described photosensitizer solution is at least a in dye photoactivation agent solution or the quantum dot light sensitizer solution.
Described dye photoactivation agent is normal Bipyridine metal complexes series, phenol cyanines series, porphyrin series, the pure organic dyestuff series of using in the solar cell field, as the bipyridyl ruthenium complex compound, and N3, N719, Z907, Black dye.
Described quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot.
Described electrolyte can be selected solar cell field electrolyte solution commonly used, organic solution electrolyte for example, and wherein solute is iodine and lithium iodide, solution is the nitrile that is in a liquid state under the normal temperature.
The Graphene of utilization of the present invention is a kind of novel carbon nanomaterial that developed recently gets up.It is the two-dimentional carbon nanomaterial that is formed by connecting in the mode of sp2 hydridization by one deck or which floor carbon atom.Utilize the high conductivity of Graphene, suitable band structure, between electro-conductive glass and sull, introduce the Graphene boundary layer, can stop electrolyte to contact effectively with electro-conductive glass, reduce light induced electron and electrolytical recombination probability, suppress back of the body course of reaction, thereby improve the photoelectric properties of battery, as shown in Figure 2.Through uv-visible absorption spectra instrument test (Japanese Hitachi company 3010 types), transmitance with indium tin oxide electro-conductive glass of Graphene boundary layer is compared with the transmitance of the indium tin oxide electro-conductive glass that does not have the Graphene boundary layer, descend 8%, as shown in Figure 4.The present invention uses the spraying slurries, and the method for carrying out in-situ reducing then directly prepares the Graphene boundary layer, and method is simple, can directly carry out the synthesizing graphite alkene boundary layer, and realizes effectively stoping contacting of electrolyte and electro-conductive glass, thereby improves photoelectric properties.
Description of drawings
Fig. 1 is that sensitization solar cell back of the body Reaction Mechanisms schematic diagram is (among the figure 1: electro-conductive glass; 2: the light anode; 3: light induced electron; 4: electrolyte).
Fig. 2 is that the Graphene boundary layer suppresses back of the body Reaction Mechanisms schematic diagram (among the figure 1: electro-conductive glass; 2: the light anode; 3: light induced electron; 4: electrolyte; 5: the Graphene boundary layer).
Fig. 3 is that sensitization solar battery structure schematic diagram with Graphene boundary layer is (among the figure 1: electro-conductive glass; 2: the light anode; 4: electrolyte; 5: the Graphene boundary layer; 6: to electrode).
Fig. 4 is transmission measurement figure (the transmission measurement curve of a:ITO glass among the figure that has the ito glass of Graphene boundary layer; B: the transmission measurement curve that has the ito glass of Graphene boundary layer).
Specific implementation method
Further specify technical scheme of the present invention below in conjunction with specific embodiment.The graphite oxide that utilizes in the embodiment of the invention, according to document W.S.Hummers, R.E.Offeman, the method of record is prepared among the J.Am.Chem.Soc.80 (1958) 1339, concrete steps are at first, 10g graphite, 5g potassium permanganate, 5g sodium nitrate are put into the 100ml concentrated sulfuric acid, stir 15min, reaction temperature is controlled at 10 ℃.Then, reaction temperature is risen to 35 ℃, continue to stir 15min.Again, the 10ml hydrogen peroxide is added in the reaction system, continue to stir 15min, and reaction temperature is controlled at 95 ℃.At last, product places 50 ℃ of dry 48h of baking oven after washed with de-ionized water 5 times, obtain graphite oxide.Need to prove, though for example preparation of all multifactor impact graphite oxides such as oxidant, temperature and time does not influence the acquisition of final graphite oxide and the preparation of follow-up battery.The dye photoactivation agent of using in an embodiment is the normal bipyridyl ruthenium complex compound N719 that uses in the solar cell field; The electrolyte that uses is the organic solution electrolyte, and wherein solute is iodine and lithium iodide, the nitrile that is in a liquid state under the normal temperature.
(1) is dispersed in the 100ml ethanol the 5mg graphite oxide is ultrasonic, forms the suspension of 0.05mg/ml
(2) suspension with graphite oxide is spraying under the atmospheric carrier air on the indium tin oxide electro-conductive glass, and carrier gas flux is 100sccm; Spray time is 1min; The electro-conductive glass temperature is 60 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in hydrogen atmosphere, at 250 ℃ of following heat treatment 30min, be reduced into Graphene, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of AsylumResearch company type) test, the thickness of this Graphene boundary layer is 1.2nm
(4) 1g titanium dioxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the titanium dioxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the titanium dioxide nanocrystalline porous membrane.Wherein, sintering time is 30min, and temperature is 300 ℃, and the mol ratio of oxygen and argon gas is 1: 2
(5) the titanium dioxide nanocrystalline perforated membrane is soaked 24h in the ethanolic solution of dyestuff, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 6.42%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 5.01%
(1) is dispersed in the 100ml ethanol the 50mg graphite oxide is ultrasonic, forms the suspension of 0.5mg/ml
(2) suspension with graphite oxide is spraying under the atmospheric carrier air on the indium tin oxide electro-conductive glass, and carrier gas flux is 500sccm; Spray time is 2min; Base reservoir temperature is 70 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in carbon monoxide atmosphere, at 300 ℃ of following heat treatment 60min, be reduced into Graphene, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of AsylumResearch company type) test, the thickness of this Graphene boundary layer is 2.5nm
(4) 1g titanium dioxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the titanium dioxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the titanium dioxide nanocrystalline porous membrane.Wherein, sintering time is 40min, and temperature is 400 ℃, and the mol ratio of oxygen and argon gas is 1: 4
(5) the titanium dioxide nanocrystalline perforated membrane is soaked 24h in the ethanolic solution of dyestuff, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 6.75%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 4.31%
(1) is dispersed in the 100ml acetone the 5mg graphite oxide is ultrasonic, forms the suspension of 0.05mg/ml
(2) suspension with graphite oxide is spraying under the atmospheric carrier air on the indium tin oxide electro-conductive glass, and carrier gas flux is 1000sccm; Spray time is 3min; Base reservoir temperature is 90 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in helium atmosphere, at 250 ℃ of following heat treatment 30min, be reduced into graphene film, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of AsylumResearch company type) test, the thickness of this Graphene boundary layer is 1.5nm
(4) 1g titanium dioxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the titanium dioxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the titanium dioxide nanocrystalline porous membrane.Wherein, sintering time is 60min, and temperature is 450 ℃, and the mol ratio of oxygen and argon gas is 1: 5
(5) the titanium dioxide nanocrystalline perforated membrane is soaked 24h in the ethanolic solution of dyestuff, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 6.07%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 4.17%
(1) is dispersed in the 100ml ethanol the 5mg graphite oxide is ultrasonic, forms the suspension of 0.05mg/ml
(2) suspension with graphite oxide is spraying under the argon carrier on the fluorine tin-oxide electro-conductive glass, and carrier gas flux is 800sccm; Spray time is 3min; Base reservoir temperature is 80 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in helium atmosphere, at 300 ℃ of following heat treatment 100min, be reduced into graphene film, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of Asylum Research company type) test, the thickness of this Graphene boundary layer is 1.5nm
(4) 1g zinc oxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the titanium dioxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the zinc-oxide nano crystal porous film.Wherein, sintering time is 45min, and temperature is 380 ℃, and the mol ratio of oxygen and argon gas is 1: 3
(5) the zinc oxide nanocrystalline perforated membrane is soaked 24h in the ethanolic solution of dyestuff, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 5.96%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 4.17%
(1) is dispersed in the 100ml acetone the 50mg graphite oxide is ultrasonic, forms the suspension of 0.5mg/ml
(2) suspension with graphite oxide is spraying under the nitrogen carrier gas on the indium tin oxide electro-conductive glass, and carrier gas flux is 400sccm; Spray time is 2min; Base reservoir temperature is 65 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in methane atmosphere, at 280 ℃ of following heat treatment 80min, be reduced into Graphene, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of AsylumResearch company type) test, the thickness of this Graphene boundary layer is 2.4nm
(4) 1g titanium dioxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the titanium dioxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the titanium dioxide nanocrystalline porous membrane.Wherein, sintering time is 40min, and temperature is 400 ℃, and the mol ratio of oxygen and argon gas is 1: 4
(5) the titanium dioxide nanocrystalline perforated membrane is soaked 24h in the ethanolic solution of dyestuff, in the ethanolic solution of cadmiumsulfide quantum dot, soak 24h again, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 6.85%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 4.31%
(1) is dispersed in the 100ml acetone the 5mg graphite oxide is ultrasonic, forms the suspension of 0.05mg/ml
(2) suspension with graphite oxide is spraying under the nitrogen carrier gas on the indium tin oxide electro-conductive glass, and carrier gas flux is 600sccm; Spray time is 3min; Base reservoir temperature is 70 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in helium atmosphere, at 280 ℃ of following heat treatment 80min, be reduced into Graphene, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of AsylumResearch company type) test, the thickness of this Graphene boundary layer is 1.4nm
(4) 1g zinc oxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the zinc oxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the zinc-oxide nano crystal porous film.Wherein, sintering time is 50min, and temperature is 420 ℃, and the mol ratio of oxygen and argon gas is 1: 3
(5) the zinc oxide nanocrystalline perforated membrane is soaked 24h in the ethanol of cadmiumsulfide quantum dot and cadmium telluride quantum dot, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 6.65%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 4.23%
Embodiment 7
(1) is dispersed in the 100ml acetone the 5mg graphite oxide is ultrasonic, forms the suspension of 0.05mg/ml
(2) suspension with graphite oxide is spraying under the nitrogen carrier gas on the indium tin oxide electro-conductive glass, and carrier gas flux is 600sccm; Spray time is 3min; Base reservoir temperature is 70 ℃
(3) will be sprayed on graphite oxide on the electro-conductive glass in helium atmosphere, at 280 ℃ of following heat treatment 80min, be reduced into Graphene, promptly described Graphene boundary layer.Through atomic force microscope (U.S. MFP-3D-SA of AsylumResearch company type) test, the thickness of this Graphene boundary layer is 1.3nm
(4) 1g zinc oxide nanocrystalline powder, 0.5g polyethylene glycol, 30ml deionized water are put into mortar, get the zinc oxide nanocrystalline slurry behind the grinding 30min.Slurry is coated on the electro-conductive glass that has the Graphene boundary layer, behind the air drying 24h in oxygen, argon gas mixed atmosphere sintering, obtain the zinc-oxide nano crystal porous film.Wherein, sintering time is 50min, and temperature is 420 ℃, and the mol ratio of oxygen and argon gas is 1: 3
(5) the zinc oxide nanocrystalline perforated membrane is soaked 24h in the ethanolic solution of dyestuff, in the ethanolic solution of zinc sulphide quantum dot and zinc telluride quantum dot, soak 24h again, make the light anode
(6) electro-conductive glass, Graphene boundary layer, light anode are packaged into the sensitization solar cell that has the Graphene boundary layer with electrolyte, to electrode
(7) (irradiance is 100mWcm through AM 1.5 simulated solar irradiations
-2) test, the electricity conversion of battery is 6.95%, the equal conditions battery efficiency of the no Graphene boundary layer of preparation down is 4.23%
More than the present invention has been done exemplary description; should be noted that; under the situation that does not break away from core of the present invention, the replacement that is equal to that any simple distortion, modification or other those skilled in the art can not spend creative work all falls into protection scope of the present invention.
Claims (10)
1. solar cell with Graphene boundary layer is formed by electro-conductive glass, light anode, electrolyte with to electrode, it is characterized in that, is provided with the Graphene boundary layer between described electro-conductive glass and the light anode.
2. a kind of solar cell with Graphene boundary layer according to claim 1 is characterized in that described Graphene boundary layer is evenly distributed on the electro-conductive glass, is made up of 1-10 layer monolayer carbon atom, and thickness is 0.35-4nm.
3. according to claim 1 or 2 described a kind of solar cells, it is characterized in that described electro-conductive glass is indium tin oxide electro-conductive glass or fluorine tin-oxide electro-conductive glass with Graphene boundary layer; Described smooth anode is a sensitization light anode, form by sensitized material and porous oxide film, wherein said porous oxide film is titanium oxide, zinc oxide, tin oxide, tungsten oxide, zirconia or niobium oxide, and described sensitized material is at least a in dye photoactivation agent or the quantum dot light sensitizer.
4. a kind of solar cell with Graphene boundary layer according to claim 3 is characterized in that, described dye photoactivation agent is Bipyridine metal complexes series, phenol cyanines series, porphyrin series or pure organic dyestuff series dyes photosensitizer; Described quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot.
5. a method for preparing the solar cell with Graphene boundary layer is characterized in that, carries out according to following step:
(1) with graphite oxide in organic solvent for ultrasonic, form suspension
(2) graphite oxide suspension is sprayed on the electro-conductive glass
(3) under reproducibility or inert atmosphere, the graphite oxide that is sprayed on the electro-conductive glass is reduced into Graphene, on electro-conductive glass, obtain the Graphene boundary layer
(4) oxide nanocrystalline powder, polyethylene glycol, deionized water are put into mortar, grind and obtain oxide slurry, oxide slurry is coated on the electro-conductive glass that has the Graphene boundary layer again, sintering obtains the porous oxide film
(5) with the electro-conductive glass that has Graphene boundary layer and porous oxide film of step (4) preparation, immerse photosensitizer solution, make the light anode
(6) with light anode, Graphene boundary layer and electro-conductive glass with electrolyte, electrode is encapsulated, make the solar cell that has the Graphene boundary layer.
6. a kind of preparation according to claim 5 has the method for the solar cell of Graphene boundary layer, it is characterized in that, in the described step (1), a kind of in the aromatics, fat hydrocarbon, alicyclic hydrocarbon type, halogenated hydrocarbons, alcohols, ethers, ester class or the organic solvent of ketone that are in a liquid state at normal temperatures of organic solvent; The concentration of graphite oxide is 0.05-0.50mg/ml.
7. a kind of preparation according to claim 5 has the method for the solar cell of Graphene boundary layer, it is characterized in that, in the described step (2), described electro-conductive glass is indium tin oxide electro-conductive glass or fluorine tin-oxide electro-conductive glass; When spraying, carrier gas is a kind of in air, nitrogen, helium, neon, argon gas or the carbon dioxide; Carrier gas flux is 100-1000sccm; Spray time is 1-3min; The electro-conductive glass temperature is 60-90 ℃.
8. a kind of preparation according to claim 5 has the method for the solar cell of Graphene boundary layer, it is characterized in that, in the described step (3), described reproducibility or inert atmosphere are a kind of in hydrogen, carbon monoxide, methane, helium, neon or the argon gas, reduction temperature is 250-350 ℃, and the recovery time is 30-120min.
9. a kind of preparation according to claim 5 has the method for the solar cell of Graphene boundary layer, it is characterized in that, in the described step (4), described oxide nanocrystalline powder is a kind of in titanium dioxide, zinc oxide, tin oxide, tungsten oxide, zirconia or the niobium oxide; After treating the oxide slurry drying, sintering in the mixed atmosphere of oxygen and argon gas, sintering time are 30-60min, and temperature is 300-450 ℃, and the mol ratio of oxygen and argon gas is (1: 5)-(1: 2).
10. a kind of preparation according to claim 5 has the method for the solar cell of Graphene boundary layer, it is characterized in that, in the described step (5), described photosensitizer solution is at least a in dye photoactivation agent solution or the quantum dot light sensitizer solution; Described dye photoactivation agent is the normal Bipyridine metal complexes series of using in the solar cell field, phenol cyanines series, porphyrin series or pure organic dyestuff series dyes photosensitizer; Described quantum dot light sensitizer is cadmiumsulfide quantum dot, CdSe quantum dots, cadmium telluride quantum dot, zinc sulphide quantum dot, zinc selenide quantum dot, zinc telluride quantum dot, mercuric sulphide quantum dot, mercury selenide quantum dot or tellurium mercury quantum dot.
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| CN102306707A (en) * | 2011-08-18 | 2012-01-04 | 北京理工大学 | Photoelectric detector based on colloidal quantum dots and graphene utilized as photoelectrode and manufacturing method thereof |
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| CN110364361A (en) * | 2018-04-09 | 2019-10-22 | 天津师范大学 | A kind of quantum dot sensitized solar cell and preparation method thereof with graphite phase carbon nitride boundary layer |
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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 |
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| CN102290248A (en) * | 2011-06-10 | 2011-12-21 | 浙江东晶电子股份有限公司 | Method for preparing efficient compound light anode of dye sensitized solar cell |
| CN102306707A (en) * | 2011-08-18 | 2012-01-04 | 北京理工大学 | Photoelectric detector based on colloidal quantum dots and graphene utilized as photoelectrode and manufacturing method thereof |
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| CN109036855A (en) * | 2018-08-17 | 2018-12-18 | 常州大学 | Graphene composite transparent power generation thin slice and preparation method thereof |
| CN109036855B (en) * | 2018-08-17 | 2020-11-24 | 常州大学 | Graphene composite transparent power generation sheet and preparation method thereof |
| CN112687476A (en) * | 2019-10-18 | 2021-04-20 | 昆山科技大学 | Preparation and application of graphene oxide carbon aerogel |
| CN112687476B (en) * | 2019-10-18 | 2022-06-10 | 昆山科技大学 | Preparation and application of graphene oxide carbon aerogel |
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