CN103117174A - Dye-sensitized solar cell photo-anode and preparation method and application of dye-sensitized solar cell photo-anode - Google Patents

Dye-sensitized solar cell photo-anode and preparation method and application of dye-sensitized solar cell photo-anode Download PDF

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CN103117174A
CN103117174A CN2013100895958A CN201310089595A CN103117174A CN 103117174 A CN103117174 A CN 103117174A CN 2013100895958 A CN2013100895958 A CN 2013100895958A CN 201310089595 A CN201310089595 A CN 201310089595A CN 103117174 A CN103117174 A CN 103117174A
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anode
dye
preparation
solar cell
sensitized solar
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CN103117174B (en
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张京
陈振华
彭文琴
韩礼元
诸跃进
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Ningbo University
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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

Abstract

The invention discloses to a dye-sensitized solar cell photo-anode, the photo-anode is a TixSn1-xO2 nanocrystalline photo-anode, and wherein the x is 0.03-0.9. The invention further discloses a preparation method of the photo-anode and application on dye-sensitized solar cells. Compared with the prior art, the eye-sensitized solar cell photo-anode and the preparation method and application of the dye-sensitized solar cell photo-anode have the advantages that when x value in the TixSn1-xO2 nanocrystalline photo-anode reaches a certain value, conduction band energy level of the TixSn1-xO2 nanocrystalline photo-anode is not lower than that of titanium dioxide, simultaneously a little higher than stannic oxide, and is provided with little surface state; and accordingly application of low excitation state energy level organic dye in dye-sensitized solar cells.

Description

Dye-sensitized solar cell anode and its preparation method and application
Technical field
The present invention relates to a kind of dye-sensitized solar cell anode, the invention still further relates to the preparation method and application of this light anode.
Background technology
The classical architecture of dye sensitized nano crystal salar battery is titanium dioxide/dyestuff/electrolytical sandwich structure.The excited level of dyestuff must be higher than energy level at the bottom of the titanium dioxide conduction band, and electronics could inject titanium dioxide photo anode from dyestuff.
Existing classical titanium dioxide nanocrystalline makes a large amount of excitation state can't use lower than the dyestuff of titanium dioxide conduction end energy level as the light anode, the limitation that has caused dyestuff to use, and be unfavorable for developing the organic dye sensitized solar cell of high efficiency, low cost.Through practical study as can be known: preparing the nanocrystalline smooth anode of a kind of low-lying level, is the effective way that addresses these problems thereby make the dyestuff of low excited state can inject electronics.
So related scientific research worker takes up to study the low-lying level titanium dioxide photo anode, for example use the element doping titanium dioxide nanocrystalline to prepare the light anode in order to change being with of titanium dioxide.Be open " nitrogen-doped titanium dioxide light anode and its preparation method and application " (publication number is CN102103931A) of 201110009081.8 Chinese invention patent application as application number, this application has just been announced a kind of nitrogen-doped titanium dioxide light anode, this light anode comprises electro-conductive glass and is coated on titanium deoxid film on electro-conductive glass, it is characterized in that in this titanium deoxid film doped with the nitrogenous source take urea as raw material, this invention has changed the titanium dioxide energy level, makes its visible absorption peak position red shift.
And for example application number is the preparation method that open " preparation method of metal-doped low-energy gap nanocrystalline semiconductor photo-anode film " (publication number is CN101593627A) of Chinese invention patent application of 200910088193.X announced a kind of metal-doped low-energy gap nanocrystalline semiconductor photo-anode film, the method is low metal-doped nano-titanium dioxide powder and the sol precursor of energy gap of preparation, again above-mentioned powder and colloidal sol are spun in the electro-conductive glass substrate, prepare low energy gap doping attitude porous nano titanium dioxide photo anode film.In this invention, realize control to semiconductor titanium dioxide energy gap size and lumo energy position thereof by a kind of two or more different metals, widened the extinction bands of a spectrum of photo-anode film, improved the energy level matching of photo-anode film with dye molecule.
The above-mentioned light anode that passes through in titanium dioxide nano-particle doping metals or nonmetalloid preparation, although finally all changed the position that titanium dioxide can be with, but but exist following shortcoming: can be with change less to titanium dioxide when doping is less, and doping many time electric transmission of titanium dioxide nanocrystalline worsen, cause battery performance to reduce.Therefore titanium dioxide nanocrystalline is carried out the method such as doping and modification and can not reach the purpose of significantly adjusting its level structure, this method has limited the application of low excited state dyestuff on titanium dioxide photo anode.
So the research worker has researched and developed novel tin ash light anode, this light anode possesses energy level at the bottom of lower conduction, and its is fit to the use of low excited state dyestuff.But tin ash has energy level and a large amount of surface states at the bottom of low conduction band, when these two factors have caused tin ash light anode to be used for DSSC, open circuit voltage and fill factor, curve factor are low, battery efficiency is poor, so tin ash light anode also exists deficiency for the low excited state DSSC.
In sum, the problem of prior art existence is:
1) energy level of pure titinium dioxide light anode can not decrease, thereby has limited the application of low excited state dyestuff in dye sensitized nano crystal salar battery;
2) pure tin ash light anode conduction level is low and have a large amount of surface states, and when having caused tin ash light anode to be used for DSSC, open circuit voltage and fill factor, curve factor are low, and photoelectric conversion efficiency is low.
Summary of the invention
Technical problem to be solved by this invention is that a kind of dye-sensitized solar cell anode of low-lying level is provided for the above-mentioned state of the art.
Another technical problem to be solved by this invention is to provide a kind of preparation method of dye-sensitized solar cell anode of low-lying level.
Another technical problem to be solved by this invention is to provide the application of a kind of low-lying level light anode on solar cell.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of dye-sensitized solar cell anode is characterized in that: described smooth anode is Ti xSn 1-xO 2Nanocrystalline smooth anode, wherein, x is 0.03～0.9.
A kind of preparation method of dye-sensitized solar cell anode is characterized in that comprising the steps:
1) preparation Ti xSn 1-xO 2Nano particle:
Add NaOH in the butter of tin aqueous solution of the 0.02～0.5M that clarifies, and stir, the mol ratio of NaOH and butter of tin is 20:1～1:2; The ethanolic solution that adds afterwards isopropyl titanate, the mol ratio of isopropyl titanate and butter of tin are 0.03:1～0.9:1; After said mixture is stirred, be positioned in the hydro-thermal reaction container, 150～230 ℃ of reactions 6～24 hours, take out and centrifugal drying;
2) preparation Ti xSn 1-xO 2The nano particle slurry:
With Ti xSn 1-xO 2Nano particle, dispersant and film forming agent mixing and stirring form slurry, and in this slurry, each weight percentages of components is as follows:
Ti xSn 1-xO 2Nano particle 12.5%～23.1%;
Dispersant 53.8%～75%;
Film forming agent 12.5%～23.1%,
3) preparation light anode:
Slurry evenly is coated on electro-conductive glass, forms Ti xSn 1-xO 2Film, and then obtain low-lying level light anode.
As preferably, the Ti described in step 3) xSn 1-xO 2The thickness of film is 3～15 microns.
Above-mentioned steps 2) dispersant described in is at least one in terpinol, 2-Ethylhexyl Alcohol, preferred terpinol.
Above-mentioned steps 2) film forming agent described in is at least one in ethyl cellulose, polyethylene glycol, preferred, ethyl.
Above-mentioned steps 3) in, coating is coated in and adopts knife coating, spin-coating method or silk screen print method on electro-conductive glass, preferred silk screen print method.
A kind of preparation method who prepares DSSC, it is characterized in that above-mentioned smooth anode is immersed in dye solution 5～24 hours, make the dye sensitized nano crystal film, afterwards with described dye sensitized nano crystal film and platinum to the electrode assembling battery and seal and turn, inject redox electrolytes matter at described dye sensitized nano crystal film and between to electrode, namely can be assembled into dye sensitized nano crystal salar battery.
As preferably, in above-mentioned preparation DSSC method, encapsulating material used is the sarin film.
As preferably, redox electrolytes plasmogamy used in above-mentioned preparation DSSC method is than as follows:
LiI 0.5M；
I 2 0.04M；
4-butyl-pyridinium 0.5M,
The solvent of described redox electrolytes matter is acetonitrile.
Compared with prior art, the invention has the advantages that:
1) the invention provides a kind of Ti xSn 1-xO 2Nanocrystalline smooth anode is by regulating the Ti that mole recently changes of titanium and tin in this light anode xSn 1-xO 2The size of middle x value is to change Ti xSn 1-xO 2The position of energy band of nanocrystalline smooth anode: at the bottom of the conduction band of this light anode energy level 0～-0.5eV(standard hydrogen electrode system) scope adjustable.If x reaches a certain particular value, Ti xSn 1-xO 2Nanocrystalline smooth anode can demonstrate the conduction level lower than titanium dioxide photo anode.Ti xSn 1-xO 2Nanocrystalline smooth anode preferably resolves with the coupling of the low organic dyestuff of multiple excited level and uses problem, makes for the dyestuff of dye sensitized nano crystal salar battery more diversified.
2) at Ti xSn 1-xO 2When having suitable titanium tin ratio in nanocrystalline smooth anode, this Ti xSn 1-xO 2Nanocrystalline smooth anode possesses than the slightly high conduction level of pure tin ash light anode, and, this Ti xSn 1-xO 2The surface state of nanocrystalline smooth anode is compared tin ash light anode and is greatly reduced, and is beneficial to obtain the higher solar cell of efficient.
3) Ti xSn 1-xO 2It is optimum that nanocrystalline smooth anode interior electric transmission speed reaches, and the electron recombination at light anode/electrolyte interface reaches minimum, improved a lot by the low dye sensitized nano crystal efficiency of solar cell that excites of this light anode assembling.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1 preparation Ti xSn 1-xO 2Nanocrystalline porous film, wherein the value of x is 0.06, is used for dye sensitized nano crystal salar battery light anode.
Use the ethanolic solution of isopropyl titanate to carry out modification to the butter of tin aqueous solution (5mM).The mol ratio of isopropyl titanate and butter of tin is 0.06:0.94.Add in above-mentioned mixed solution NaOH (with the mol ratio of butter of tin be 1:2～20:1).Put into hydrothermal reaction kettle after stirring 150 ℃～250 ℃ reactions 12 hours.Take out centrifugally and dry, obtain Ti 0.06Sn 0.94O 2Nano particle.Ti with preparation 0.06Sn 0.94O 2Nano particle mixes and stirs with dispersant terpinol, film forming agent ethyl cellulose, and three's weight ratio is 18:9:73, obtains the Ti for silk screen printing 0.06Sn 0.94O 2Slurry.
Ti 0.06Sn 0.94O 2Thickness be 3～15 microns.In the acetonitrile of the side's of being soaked into cyanines acid organic dyestuff and the solution of the tert-butyl alcohol.Take out after 12 hours.Use sarin film and platinum to electrode package, and inject redox electrolytes matter at the light anode and in to electrode, its proportioning is: 0.5M LiI, 0.04M I 2, the 0.5M4-butyl-pyridinium, solvent is acetonitrile.
At room temperature environment, use the xenon lamp simulated solar irradiation, light intensity is 100mW/cm 2(solar simulator model: Newport91192A) under the condition, record Ti 0.06Sn 0.94O 2(effectively illuminating area is 0.2304cm as the dye sensitized nano crystal solar cell of light anode 2) photoelectric conversion efficiency be 1.57%(short-circuit current density 5.16mAcm -2, open circuit voltage 0.494V, fill factor, curve factor 0.614), improved approximately 2 times than the efficiency of dye-sensitized solar battery (0.58%) that uses titanium dioxide as the light anode.Compare as the photoelectric conversion efficiency (0.22%) of the dye-sensitized cell of light anode with pure tin ash and improved nearly 6 times.The reason that improves is mainly to use Ti 0.06Sn 0.94O 2Than the low 0.4eV of titanium dioxide, the excitation state of the sour cyanines organic dyestuff in the side of making can be injected smoothly, so Ti as energy level at the bottom of the conduction band of light anode 0.06Sn 0.94O 2The light anode shows the short-circuit current density larger than titanium dioxide photo anode.While Ti 0.06Sn 0.94O 2At the bottom of conduction band energy level is than the high 0.1eV of pure tin ash, and surface state is also relatively less, makes Ti 0.06Sn 0.94O 2The inside of the DSSC of light anode is compound little, possesses higher open circuit voltage.
Embodiment 2 preparation Ti xSn 1-xO 2Nanocrystalline porous film, wherein the value of x is 0.1, is used for dye sensitized nano crystal salar battery light anode.
Use the ethanolic solution of isopropyl titanate to carry out modification to the butter of tin aqueous solution (2mM).The mol ratio of isopropyl titanate and butter of tin is 1:9.Add in above-mentioned mixed solution NaOH (with the mol ratio of butter of tin be 1:2～20:1).Put into hydrothermal reaction kettle after stirring 150 ℃～250 ℃ reactions 12 hours.Take out centrifugally and dry, obtain Ti 0.06Sn 0.94O 2Nano particle.Ti with preparation 0.06Sn 0.94O 2Nano particle mixes and stirs with dispersant terpinol, film forming agent ethyl cellulose, and (three's weight ratio is 3:2:15, obtains the Ti for silk screen printing 0.06Sn 0.94O 2Slurry.
Ti 0.1Sn 0.9O 2Thickness be 3～15 microns.In the acetonitrile of the side's of being soaked into cyanines acid organic dyestuff and the solution of the tert-butyl alcohol.Take out after 12 hours.Use sarin film and platinum to electrode package, and inject redox electrolytes matter at the light anode and in to electrode, its proportioning is: 0.5M LiI, 0.04M I 2, the 0.5M4-butyl-pyridinium, solvent is acetonitrile.
At room temperature environment, use the xenon lamp simulated solar irradiation, light intensity is 100mW/cm 2(solar simulator model: Newport91192A) under the condition, record Ti 0.1Sn 0.9O 2(effectively illuminating area is 0.2304cm as the dye sensitized nano crystal solar cell of light anode 2) photoelectric conversion efficiency be 1.62%(short-circuit current density 5.1mAcm -2, open circuit voltage 0.53V, fill factor, curve factor 0.613), improved approximately 2 times than the efficiency of dye-sensitized solar battery (0.58%) that uses titanium dioxide as the light anode.Compare as the photoelectric conversion efficiency (0.22%) of the dye-sensitized cell of light anode with pure tin ash and improved 6 times.Ti 0.1Sn 0.9O 2Conduction band at the bottom of energy level than the low 0.3eV of titanium dioxide, still demonstrate the current density higher than titanium dioxide photo anode so be used for dye sensitized nano crystal salar battery.Ti 0.1Sn 0.9O 2Conduction band at the bottom of energy level than the high 0.2eV of tin ash, and have less surface state, therefore demonstrate than the higher voltage of tin ash light anode.
Embodiment 3 preparation Ti xSn 1-xO 2Nanocrystalline porous film, wherein the value of x is 0.7, is used for dye sensitized nano crystal salar battery light anode.
Use the ethanolic solution of isopropyl titanate to carry out modification to the butter of tin aqueous solution.The mol ratio of isopropyl titanate and butter of tin is 7:3.Add in above-mentioned mixed solution NaOH (with the mol ratio of butter of tin be 1:2～20:1).Put into hydrothermal reaction kettle after stirring 150 ℃～250 ℃ reactions 12 hours.Take out centrifugally and dry, obtain Ti 0.7Sn 0.3O 2Nano particle.Ti with preparation 0.7Sn 0.3O 2Nano particle mixes and stirs with dispersant terpinol, film forming agent ethyl cellulose, and three's weight ratio is 3:1:6, obtains the Ti for silk screen printing 0.7Sn 0.3O 2Slurry.
Ti 0.7Sn 0.3O 2Thickness be 3～15 microns.In the acetonitrile of the side's of being soaked into cyanines acid organic dyestuff and the solution of the tert-butyl alcohol.Take out after 12 hours.Use sarin film and platinum to electrode package, and inject redox electrolytes matter at the light anode and in to electrode, its proportioning is: 0.5M LiI, 0.04M I 2, the 0.5M4-butyl-pyridinium, solvent is acetonitrile.
At room temperature environment, use the xenon lamp simulated solar irradiation, light intensity is 100mW/cm 2(solar simulator model: Newport91192A) under the condition, record Ti 0.7Sn 0.3O 2(effectively illuminating area is 0.2304cm as the dye sensitized nano crystal solar cell of light anode 2) photoelectric conversion efficiency be 0.41%(short-circuit current density 1.12mAcm -2, open circuit voltage 0.54V, fill factor, curve factor 0.68), slightly reduce than the efficiency of dye-sensitized solar battery (0.58%) that uses titanium dioxide as the light anode.Compare as the photoelectric conversion efficiency (0.22%) of the dye-sensitized cell of light anode with pure tin ash and improved approximately one times.Ti 0.7Sn 0.3O 2Conduction band at the bottom of energy level only than the low 0.1eV of titanium dioxide, electron transport ability is also relatively poor, thereby photoelectric conversion efficiency is compared with titanium dioxide and do not had an advantage.
Embodiment 4 preparation Ti xSn 1-xO 2Nanocrystalline porous film, wherein the value of x is 0.9, is used for dye sensitized nano crystal salar battery light anode.
Use the ethanolic solution of isopropyl titanate to carry out modification to the butter of tin aqueous solution.The mol ratio of isopropyl titanate and butter of tin is 9:1.Add in above-mentioned mixed solution NaOH (with the mol ratio of butter of tin be 1:2～20:1).Put into hydrothermal reaction kettle after stirring 150 ℃～250 ℃ reactions 12 hours.Take out centrifugally and dry, obtain Ti 0.9Sn 0.1O 2Nano particle.Ti with preparation 0.9Sn 0.1O 2Nano particle mixes and stirs with dispersant terpinol, film forming agent ethyl cellulose, and three's weight ratio is 1:1:3, obtains the Ti for silk screen printing 0.9Sn 0.1O 2Slurry.
Ti 0.9Sn 0.1O 2Thickness be 3～15 microns.In the acetonitrile of the side's of being soaked into cyanines acid organic dyestuff and the solution of the tert-butyl alcohol.Take out after 12 hours.Use sarin film and platinum to electrode package, and inject redox electrolytes matter at the light anode and in to electrode, its proportioning is: 0.5M LiI, 0.04M I 2, the 0.5M4-butyl-pyridinium, solvent is acetonitrile.
At room temperature environment, use the xenon lamp simulated solar irradiation, light intensity is 100mW/cm 2(solar simulator model: Newport91192A) under the condition, record Ti 0.9Sn 0.1O 2(effectively illuminating area is 0.2304cm as the dye sensitized nano crystal solar cell of light anode 2) photoelectric conversion efficiency be 0.35%(short-circuit current density 0.9mAcm -2, open circuit voltage 0.545V, fill factor, curve factor 0.709), titanium dioxide is low as the efficiency of dye-sensitized solar battery (0.58%) of light anode than using.Slightly be improved with the pure tin ash photoelectric conversion efficiency (0.22%) as the dye-sensitized cell of light anode.Ti 0.9Sn 0.1O 2Conduction band at the bottom of energy level than the high 0.05eV of titanium dioxide, do not have an advantage in the use of novel low excited state dyestuff.
Embodiment 5 preparation Ti xSn 1-xO 2Nanocrystalline porous film, wherein the value of x is 0.03, is used for dye sensitized nano crystal salar battery light anode.
Use the ethanolic solution of isopropyl titanate to carry out modification to the butter of tin aqueous solution (3mM).The mol ratio of isopropyl titanate and butter of tin is 0.03:0.97.Add in above-mentioned mixed solution NaOH (with the mol ratio of butter of tin be 1:2～20:1).Put into hydrothermal reaction kettle after stirring 150 ℃～250 ℃ reactions 12 hours.Take out centrifugally and dry, obtain Ti 0.03Sn 0.97O 2Nano particle.Ti with preparation 0.03Sn 0.97O 2Nano particle mixes and stirs with dispersant terpinol, film forming agent ethyl cellulose, and three's weight ratio is 1:2:2, obtains the Ti for silk screen printing 0.03Sn 0.97O 2Slurry.
Ti 0.03Sn 0.97O 2Thickness be 3～15 microns.In the acetonitrile of the side's of being soaked into cyanines acid organic dyestuff and the solution of the tert-butyl alcohol.Take out after 12 hours.Use sarin film and platinum to electrode package, and inject redox electrolytes matter at the light anode and in to electrode, its proportioning is: 0.5M LiI, 0.04M I 2, the 0.5M4-butyl-pyridinium, solvent is acetonitrile.
At room temperature environment, use the xenon lamp simulated solar irradiation, light intensity is 100mW/cm 2(solar simulator model: Newport91192A) under the condition, record Ti 0.03Sn 0.97O 2(effectively illuminating area is 0.2304cm as the dye sensitized nano crystal solar cell of light anode 2) photoelectric conversion efficiency be 0.62%(short-circuit current density 4.16mAcm -2, open circuit voltage 0.38V, fill factor, curve factor 0.392), slightly be improved than the efficiency of dye-sensitized solar battery (0.58%) that uses titanium dioxide as the light anode.Be improved with the pure tin ash photoelectric conversion efficiency (0.22%) as the dye-sensitized cell of light anode.Ti 0.03Sn 0.97O 2Conduction band at the bottom of energy level than the low approximately 0.5eV of titanium dioxide, but still possess than defect modes, cause battery open circuit voltage and fill factor, curve factor lower.
The comparative example
Prepare pure titanium dioxide and tin dioxide nano-particle, use method for printing screen to prepare light anode nanometer porous polycrystalline film, thickness is 3～15 microns.In the acetonitrile of the side's of being soaked into cyanines acid organic dyestuff and the solution of the tert-butyl alcohol, take out after 12 hours.Use sarin film and platinum to electrode package, and inject redox electrolytes matter at the light anode and in to electrode, its proportioning is: 0.5M LiI, 0.04M I 2, the 0.5M4-butyl-pyridinium, solvent is acetonitrile.
The photoelectric conversion efficiency of titanium dioxide photo anode solar cell after the sensitization of user's cyanines acid dye is 0.58%(short-circuit current density 1.51mAcm -2, open circuit voltage 0.536V, fill factor, curve factor 0.711).After the sensitization of tin ash light anode user cyanines acid dye, the photoelectric conversion efficiency of battery is 0.22%(short-circuit current density 2.42mAcm -2, open circuit voltage 0.263V, fill factor, curve factor 0.346).

Claims (9)

1. dye-sensitized solar cell anode, it is characterized in that: described smooth anode is Ti xSn 1-xO 2Nanocrystalline smooth anode, wherein, x is 0.03～0.9.
2. the preparation method of a dye-sensitized solar cell anode claimed in claim 1, is characterized in that comprising the steps:
1) preparation Ti xSn 1-xO 2Nano particle:
Add NaOH in the butter of tin aqueous solution of the 0.02～0.5M that clarifies, and stir, the mol ratio of NaOH and butter of tin is 20:1～1:2; The ethanolic solution that adds afterwards isopropyl titanate, the mol ratio of isopropyl titanate and butter of tin are 0.03:1～0.9:1; After said mixture is stirred, be positioned in the hydro-thermal reaction container, 150～230 ℃ of reactions 6～24 hours, take out and centrifugal drying;
2) preparation Ti xSn 1-xO 2The nano particle slurry:
With described Ti xSn 1-xO 22 nano particles, dispersant and film forming agent mixing and stirring form slurry, and in this slurry, each weight percentages of components is as follows:
TixSn1-xO2 nano particle 12.5%～23.1%;
Dispersant 53.8%～75%;
Film forming agent 12.5%～23.1%;
3) preparation light anode:
Above-mentioned slurry evenly is coated on electro-conductive glass, forms Ti xSn 1-xO 2Film, and then obtain low-lying level light anode.
3. preparation method as claimed in claim 2, is characterized in that: the Ti of described step 3) coating gained xSn 1-xO 2Nanocrystalline smooth anode thickness is 3～15 microns.
4. preparation method as claimed in claim 2,, it is characterized in that: described dispersant is terpinol, 2-Ethylhexyl Alcohol or terpinol and 2-Ethylhexyl Alcohol mixture.
5. preparation method as claimed in claim 2,, it is characterized in that: described film forming agent be ethyl cellulose, molecular weight be in 20000 polyethylene glycol one of at least.
6. preparation method as claimed in claim 2,, it is characterized in that: in step 3), slurry is coated in electro-conductive glass and adopts knife coating, spin-coating method or silk screen print method.
7. utilize smooth anode claimed in claim 1 to prepare the method for DSSC, it is characterized in that: described smooth anode is immersed in dye solution 5～24 hours, make the dye sensitized nano crystal film, afterwards with described dye sensitized nano crystal film and platinum to the electrode assembling battery and seal and turn, inject redox electrolytes matter at described dye sensitized nano crystal film and between to electrode, namely be assembled into dye sensitized nano crystal salar battery.
8. preparation dye sensitized nano crystal salar battery method as claimed in claim 7, it is characterized in that: described encapsulating material is the sarin film.
9. preparation dye sensitized nano crystal salar battery method as claimed in claim 7, it is characterized in that: described redox electrolytes plasmogamy is than as follows:
LiI 0.5M；
I 2 0.04M；
4-butyl-pyridinium 0.5M,
The solvent of described redox electrolytes matter is acetonitrile.
CN201310089595.8A 2013-03-20 2013-03-20 Dye-sensitized solar cell anode and utilize this light anode to prepare the method for dye sensitized nano crystal salar battery Expired - Fee Related CN103117174B (en)

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IBRAHIM ISSAC , MARCO SCHEUERMANN, SEBASTIAN M. BECKER,ETC: "Nanocrystalline Ti2/3Sn1/3O2 as anode material for Li-ion batteries", 《JOURNAL OF POWER SOURCES》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105561969A (en) * 2016-03-02 2016-05-11 福建农林大学 Preparation and application of porous TixSn1-xO2 solid solution microspheres

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