CN108666140A - A kind of dye-sensitized solar cells is to electrode material and its preparation method and application - Google Patents
A kind of dye-sensitized solar cells is to electrode material and its preparation method and application Download PDFInfo
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- CN108666140A CN108666140A CN201710192473.XA CN201710192473A CN108666140A CN 108666140 A CN108666140 A CN 108666140A CN 201710192473 A CN201710192473 A CN 201710192473A CN 108666140 A CN108666140 A CN 108666140A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2022—Light-sensitive devices characterized by he counter electrode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2045—Light-sensitive devices comprising a semiconductor electrode comprising elements of the fourth group of the Periodic System (C, Si, Ge, Sn, Pb) with or without impurities, e.g. doping materials
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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
This application discloses a kind of dye-sensitized solar cells to electrode material and its preparation method and application.The dye-sensitized solar cells of the application is also adsorbed with carbon nanosheet layer to electrode material, including substrate and the tin oxide nano strip array for being adsorbed on substrate surface, the substrate surface of adsorption and oxidation sijna rice strip array；Also, for tin oxide nano strip array on the contact surface of carbon nanosheet layer, the Sn and C in carbon nanosheet layer in tin oxide nano item forms Sn O C coordinate bonds.The dye-sensitized solar cells of the application replaces platinum electrode to electrode material, using tin oxide/carbon nanosheet composite material, and a kind of new non-platinum electrode is provided for dye-sensitized solar cells.The dye-sensitized solar cells of the application has excellent electric conductivity and electrocatalysis characteristic to electrode material, and has good adhesive force, stability good with substrate；Prepared solar cell has excellent photoelectric conversion efficiency.
Description
Technical field
This application involves field of dye-sensitized solar cells, more particularly to a kind of dye-sensitized solar cells to electricity
Pole material and its preparation method and application.
Background technology
Switzerland scientist M. since 1991The research group of leader is in dye-sensitized solar cells (dye-
Sensitized solar cell, DSSC) since field makes a breakthrough, DSSC becomes the hot spot of scientists from all over the world's research.DSSC
It is high, at low cost, simple for process with theoretical conversion efficiency, being prepared into flexible battery etc., a series of silicon solar cells can not compare
Quasi- advantage, to as one of the battery most attracted attention in area of solar cell.Platinum is to electrode because its stability is good, electro-catalysis
Performance is high, becomes earliest for dye-sensitized solar cells to electrode material, and most common to electrode material at present.
But since alloy platinum material is more expensive, researchers have been devoted to explore the novel to electrode material of inexpensive, non-platinum.
By nearly development in 20 years, carbon material has been developed to (as lived from single noble metal platinum to the type of electrode material
Property charcoal, carbon nanotube, graphene etc.), conductive polymer polymer (such as polyaniline, PEDOT), transition metal carbide, nitrogen
Compound, oxide, sulfide etc..Carbon material is resourceful with its, of low cost, high conductivity, stable electrochemical property, catalysis
Activity it is high the advantages that as most attraction alternative materials.
Carbon is used as：It is perfect not enough to technology for preparing electrode, there is high catalytic activity
Porous carbon is larger to the sheet resistance of electrode.Meanwhile the attachment of carbon material and conductive substrates is not fine and close enough and secured, to limit
The transmission of electronics, reduces the stability to electrode.
Invention content
The purpose of the application be to provide a kind of new dye-sensitized solar cells to electrode material and preparation method thereof and
Using.
The application uses following technical scheme：
The one side of the application discloses a kind of dye-sensitized solar cells to electrode material, including substrate and is adsorbed on
The substrate surface of the tin oxide nano strip array of substrate surface, adsorption and oxidation sijna rice strip array is also adsorbed with carbon nanosheet layer；
Also, on the contact surface of tin oxide nano strip array and carbon nanosheet layer, in the Sn and carbon nanosheet layer in tin oxide nano item
C formed Sn-O-C coordinate bonds.
It should be noted that the key of the application is creative to propose a kind of the novel to electrode material of non-platinum；
The dye-sensitized solar cells of the application forms Sn-O-C coordinate bonds to electrode material, Sn with the C in carbon nanosheet layer, improves
The catalytic capability of carbon and the ability for transporting electronics.In the preferred scheme of the application, tin oxide nano strip array is adulterated by N-shaped
SnO2It is formed, N-shaped is actually adulterated into SnO2With the composite hybridization material of carbon, i.e. n-SnO2/ C, as DSSC to electrode；
This material has excellent electric conductivity and electrocatalysis characteristic, and has good adhesive force with substrate.
Preferably, tin oxide nano strip array adulterates SnO by N-shaped2Formed, doped chemical in Nb, Ta and V at least
It is a kind of.
It should be noted that the counter electrode of battery material of the application is by selecting different doped sources to control leading for tin oxide
Electric energy power and electron repulsive ability, by controlling calcination condition so that be able to form an optimization between doped stannum oxide and carbon-coating
The interfaces Sn-O-C；Element doping is carried out to tin oxide, its electric conductivity and electron repulsive ability is further increased, that is, has prepared one
Kind N-shaped adulterates SnO2With the composite hybridization material n-SnO of carbon2/C。
Preferably, substrate is titanium sheet, stainless steel substrates or conduction FTO.
Preferably, the height of tin oxide nano strip array is 3-5 μm, and the thickness of the carbon nanosheet layer is 50-100nm.
The another side of the application discloses a kind of dye of the dye-sensitized solar cells using the application to electrode material
Expect sensitization solar battery.
The application's discloses a kind of preparation side of the dye-sensitized solar cells of the application to electrode material on one side again
Method includes the following steps,
(1) it by tin source or tin source and doped chemical source, is dissolved in solvent together with thioacetamide, is configured to aoxidize
Tin reaction solution；
(2) substrate is placed in the tin oxide reaction solution of step (1) preparation, 2-10h is reacted at 25-100 DEG C；
(3) step is taken out (2) treated substrate, after washing with water, 300-500 DEG C of calcining 2-6h under air；Wherein,
The purpose of calcining is to keep its crystallinity more preferable；
(4) by step (3), treated that substrate is cooled to room temperature is placed in carbon source aqueous solution, hydro-thermal at 160-180 DEG C
React 2-6h；
(5) by step (4) treated substrate is placed in inert atmosphere 300-500 DEG C of calcining 2-6h, that is, it is quick that dyestuff is made
Change solar energy to electrode material.
Preferably, tin source SnCl4·5H2O or SnCl2·2H2O。
Preferably, doped chemical source is TaCl5、NbCl5And VCl3At least one of.
It should be noted that doped chemical is selected from least one of Nb, Ta and V in the preferred embodiment of the application, therefore,
Doped chemical chloride, that is, NbCl5、TaCl5And VCl3At least one of.
Preferably, solvent is at least one of water, isopropanol and ethyl alcohol.
Preferably, a concentration of 0.3-1mol/L of the tin source in tin oxide reaction solution, doped chemical source it is a concentration of
0.006M-0.1mol/L, a concentration of 0.2-0.8mol/L of thioacetamide.
The advantageous effect of the application is：
The dye-sensitized solar cells of the application replaces electrode material using tin oxide/carbon nanosheet composite material
Platinum electrode provides a kind of new non-platinum electrode for dye-sensitized solar cells.The dye-sensitized solar cells of the application
There is excellent electric conductivity and electrocatalysis characteristic to electrode material, and have good adhesive force, stability good with substrate；Institute
The solar cell of preparation has excellent photoelectric conversion efficiency.
Description of the drawings
Fig. 1 is the IV curve test results of the dye-sensitized solar cells assembled in the embodiment of the present application one；
Fig. 2 is the SEM photograph of material prepared in the embodiment of the present application one；
Fig. 3 is the XPS pictures of one material prepared of the embodiment of the present application；
Fig. 4 is the TEM pictures of one material prepared of the embodiment of the present application；
Fig. 5 is the structural schematic diagram of one material prepared of the embodiment of the present application.
Specific implementation mode
The application have developed it is a kind of for dye-sensitized solar cells, new non-platinum to electrode material and its preparation side
Method, this is made of electrode material substrate and the tin oxide/carbon nanosheet being attached in substrate, Sn and carbon wherein in tin oxide
C in nanometer sheet forms Sn-O-C coordinate bonds so that and electrode material has good catalytic capability and transports electronic capability, to
It can be good at for dye-sensitized solar cells to electrode.Wherein, conventional substrate, such as titanium may be used in substrate
Piece, stainless steel substrates or conduction FTO etc..
The application is described in further detail below by specific embodiment.Following embodiment is only to the application into traveling
One step illustrates, should not be construed as the limitation to the application.
Embodiment one
The dye-sensitized solar cells of this example in stannic oxide layer in electrode material to adulterating Ta, tin source in preparation method
Using SnCl4·5H2O, doped chemical source are TaCl5, carbon source solution is glucose solution, and specific preparation method is as follows：
(1) TaCl is configured5Final concentration of 0.0235mol/L, SnCl4·5H2The final concentration of 0.3mol/L of O and thioacetyl
The tin oxide reaction solution of the final concentration of 0.8mol/L of amine；Wherein, solvent is volume ratio 1：1 isopropanol and alcohol mixed solution；
(2) Ti substrates are placed in one, 3h is reacted at 80 DEG C；
(3) after washing with water step (2) products therefrom, 2h is calcined for 500 DEG C under air；
(4) hydro-thermal reaction 4h at 180 DEG C is placed it in the glucose solution of 40g/L after being cooled to room temperature；
(5) by the product after reaction in inert atmosphere argon gas 500 DEG C calcining 2h to get this example dye sensitization of solar
Counter electrode of battery material.
The dye-sensitized solar cells using scanning electron microscope (abbreviation SEM) prepared by this example to electrode material into
Row observation, the results are shown in Figure 2, it can be seen that this example prepare to electrode material, tin oxide/carbon nanosheet and substrate Ti
Between be completely embedded.
X-ray photoelectron spectroscopy point further is carried out to electrode material to dye-sensitized solar cells prepared by this example
Analysis (abbreviation XPS), the results are shown in Figure 3, the results show that the Sn in tin oxide nano item forms Sn- with the C in carbon nanosheet layer
O-C coordinate bonds, this improves with good facilitation electrode material performance to prepared by this example.
The dye-sensitized solar cells using transmission electron microscope (abbreviation TEM) prepared by this example to electrode material into
Row observation, the results are shown in Figure 4, it can be seen that the surface of tin oxide nano strip array has the carbon nanometer of one layer of about 7-8nm thickness
Lamella.According to fig. 2 to Fig. 4 observe as a result, the dye-sensitized solar cells for preparing of this example to the basic structure of electrode material
As shown in figure 5, being that there are one tin oxide nano strip arrays for tool in substrate first, there is carbon nanosheet in the adsorption of array
Layer, carbon nanosheet layer are covered between tin oxide nano strip array.
This example is prepared into dye-sensitized solar cells to electrode material, it is specific as follows：
The working electrode material of this example is by being adsorbed with 4,4'- dicarboxylic acids bipyridyl ruthenium (along bis- (the 2,2'- connection pyrroles of two thiocyanates-
Pyridine -4,4'- dicarboxylic acids) dowel (II)) (N3) dyestuff TiO2Membrane electrode forms.By TiO2Colloid even application is dry to cleaning
In net conductive substrates, 30 minutes obtained TiO of heat treatment are carried out at being then 450 DEG C in temperature2Membrane electrode, then by TiO2
Electrode immerses a concentration of 5 × l0-4In the ethanol solution of the N3 dyestuffs of mol/L, is rinsed with absolute ethyl alcohol after taking-up, is then dried,
Obtain dye-sensitized solar cell working electrode.
At the same time, this example using traditional platinum to electrode as a comparison.Platinum uses thermal decomposition method to the preparation of electrode：With
Isopropanol is solvent, and chloroplatinic acid is solute, is configured to 0.5mmol L-1Platinum acid chloride solution, take a small amount of platinum acid chloride solution with suction pipe
It is slowly dropped in FTO conductive substrates, dries to be placed in Muffle furnace at room temperature and be sintered 15min at 390 DEG C, be cooled to room temperature
Afterwards i.e. prepare be loaded with platinum to electrode.
The TiO of dyestuff will be adsorbed with2Working electrode material prepares quick at the dyestuff for test to electrode assembling with this example
Change solar cell；It will be adsorbed with the TiO of dyestuff as a comparison2Working electrode material and the platinum of preparation are also assembled into electrode dye
Expect sensitization solar battery.The assembling of battery is not tired herein to state with reference to conventional assembling mode.
IV songs are carried out to the dye-sensitized solar cells of this example assembling at AM1.5/25 DEG C using electrochemical workstation
Line is tested, and test results are shown in figure 1.The results show that the photoelectric conversion efficiency of the dye-sensitized solar cells of this example is
8.38%, platinum is 8.46% to the photoelectric conversion efficiency of electrode under the same terms, it can be seen that, this example prepare to its property of electrode
It can have reached and platinum is to the comparable level of electrode, expensive alloy platinum material can be replaced as a kind of new non-platinum electrode.
Embodiment two
The dye-sensitized solar cells of this example in stannic oxide layer in electrode material to adulterating Ta, tin source in preparation method
Using SnCl4·5H2O, doped chemical source are TaCl5, carbon source solution is sucrose solution, and specific preparation method is as follows：
(1) TaCl is configured5Final concentration of 0.045mol/L, SnCl4·5H2The final concentration of 0.4mol/L of O and thioacetamide
The tin oxide reaction solution of final concentration of 0.6mol/L；Wherein, it is 1 that solvent, which is volume ratio,：The mixed solution of 1 isopropyl alcohol and water；
(2) Ti substrates are placed in one, 6h is reacted at 100 DEG C；
(3) after washing with water step (2) products therefrom, 2h is calcined for 500 DEG C under air；
(4) hydro-thermal reaction 2h at 180 DEG C is placed it in the sucrose solution of 100g/L after being cooled to room temperature；
(5) by the product after reaction in inert atmosphere argon gas 400 DEG C calcining 2h to get this example dye sensitization of solar
Counter electrode of battery material.
It is identical with embodiment one, the dye-sensitized solar cells of this example carries out electrode material using SEM and TEM
Observation, and carry out XPS analysis.The results show that this example prepare to electrode material tin oxide/connected between carbon nanosheet and substrate
Closely, Sn and C forms Sn-O-C coordinate bonds, and carbon layers having thicknesses about 7nm.
This example is prepared into dye-sensitized solar cells to electrode material, it is specific as follows：
Working electrode material by be adsorbed with 4,4'- dicarboxylic acids bipyridyl ruthenium (along two thiocyanates-it is bis- (bipyridyl -4 2,2'-,
4'- dicarboxylic acids) dowel (II)) (N3) dyestuff TiO2Membrane electrode forms.By TiO2Colloid even application is led to what is cleaned up
In electric substrate, 30 minutes obtained TiO of heat treatment are carried out at being then 450 DEG C in temperature2Membrane electrode, then by TiO2Electrode soaks
Enter a concentration of 5 × l0-4In the ethanol solution of the N3 dyestuffs of mol/L, is rinsed with absolute ethyl alcohol after taking-up, then dried, obtained
Dye-sensitized solar cell working electrode.
At the same time, this example using traditional platinum to electrode as a comparison.Platinum uses thermal decomposition method to the preparation of electrode：With
Isopropanol is solvent, and chloroplatinic acid is solute, is configured to 0.5mmol L-1Platinum acid chloride solution, take a small amount of platinum acid chloride solution with suction pipe
It is slowly dropped in FTO conductive substrates, dries to be placed in Muffle furnace at room temperature and be sintered 15min at 390 DEG C, be cooled to room temperature
Afterwards i.e. prepare be loaded with platinum to electrode.
The TiO of dyestuff will be adsorbed with2Working electrode material prepares quick at the dyestuff for test to electrode assembling with this example
Change solar cell；It will be adsorbed with the TiO of dyestuff as a comparison2Working electrode material and the platinum of preparation are also assembled into electrode dye
Expect sensitization solar battery.The assembling of battery is not tired herein to state with reference to conventional assembling mode.
IV songs are carried out to the dye-sensitized solar cells of this example assembling at AM1.5/25 DEG C using electrochemical workstation
Line is tested, and test result is shown, the photoelectric conversion efficiency of the dye-sensitized solar cells of this example is 8.48%, under the same terms
Platinum is 8.46% to the photoelectric conversion efficiency of electrode, it can be seen that, prepared by this example has reached electrode its performance even super
It has got over and platinum is to electrode, platinum can be replaced to electrode, as a kind of new non-platinum electrode material.
Embodiment three
The dye-sensitized solar cells of this example in stannic oxide layer in electrode material to adulterating Nb, tin source in preparation method
Using SnCl4·5H2O, doped chemical source are NbCl5, carbon source solution is glucose solution, and specific preparation method is as follows：
(1) NbCl is configured5Final concentration of 0.006mol/L, SnCl4·5H2The final concentration of 1mol/L of O and thioacetamide are whole
The tin oxide reaction solution of a concentration of 0.8mol/L；Wherein, it is 1 that solvent, which is volume ratio,：The mixed solution of 1 second alcohol and water；
(2) FTO substrates are placed in one, 10h is reacted at 25 DEG C；
(3) after washing with water step (2) products therefrom, 3h is calcined for 400 DEG C under air；
(4) hydro-thermal reaction 2h at 160 DEG C is placed it in the glucose solution of 80g/L after being cooled to room temperature；
(5) by the product after reaction in inert atmosphere argon gas 300 DEG C calcining 2h to get this example dye sensitization of solar
Counter electrode of battery material.
The dye-sensitized solar cells of this example sees electrode material using one identical SEM and TEM of embodiment
It examines, and carries out XPS analysis.The results show that being connected to electrode material tin oxide/between carbon nanosheet and substrate of preparing of this example is tight
Close, Sn and C forms Sn-O-C coordinate bonds, and carbon layers having thicknesses about 9nm.
This example is prepared into dye-sensitized solar cells to electrode material, it is specific as follows：
Working electrode material by be adsorbed with 4,4'- dicarboxylic acids bipyridyl ruthenium (along two thiocyanates-it is bis- (bipyridyl -4 2,2'-,
4'- dicarboxylic acids) dowel (II)) (N3) dyestuff TiO2Membrane electrode forms.By TiO2Colloid even application is led to what is cleaned up
In electric substrate, 30 minutes obtained TiO of heat treatment are carried out at being then 450 DEG C in temperature2Membrane electrode, then by TiO2Electrode soaks
Enter a concentration of 5 × l0-4In the ethanol solution of the N3 dyestuffs of mol/L, is rinsed with absolute ethyl alcohol after taking-up, then dried, obtained
Dye-sensitized solar cell working electrode.
At the same time, this example using traditional platinum to electrode as a comparison.Platinum uses thermal decomposition method to the preparation of electrode：With
Isopropanol is solvent, and chloroplatinic acid is solute, is configured to 0.5mmol L-1Platinum acid chloride solution, take a small amount of platinum acid chloride solution with suction pipe
It is slowly dropped in FTO conductive substrates, dries to be placed in Muffle furnace at room temperature and be sintered 15min at 390 DEG C, be cooled to room temperature
Afterwards i.e. prepare be loaded with platinum to electrode.
The TiO of dyestuff will be adsorbed with2Working electrode material prepares quick at the dyestuff for test to electrode assembling with this example
Change solar cell；It will be adsorbed with the TiO of dyestuff as a comparison2Working electrode material and the platinum of preparation are also assembled into electrode dye
Expect sensitization solar battery.The assembling of battery is not tired herein to state with reference to conventional assembling mode.
IV songs are carried out to the dye-sensitized solar cells of this example assembling at AM1.5/25 DEG C using electrochemical workstation
Line is tested, and test result is shown, the photoelectric conversion efficiency of the dye-sensitized solar cells of this example is 8.28%, under the same terms
Platinum is 8.46% to the photoelectric conversion efficiency of electrode, it can be seen that, prepared by this example had reached electrode its performance and platinum
To the comparable level of electrode, expensive alloy platinum material can be replaced as a kind of new non-platinum electrode.
Example IV
The dye-sensitized solar cells of this example in stannic oxide layer in electrode material to adulterating V, tin source in preparation method
Using SnCl4·5H2O, doped chemical source are VCl3, carbon source solution is citric acid solution, and specific preparation method is as follows：
(1) VCl is configured3Final concentration of 0.04mol/L, SnCl4·5H2The final concentration of 0.3mol/L of O and thioacetamide are whole
The tin oxide reaction solution of a concentration of 0.5mol/L；Wherein, it is 1 that solvent, which is volume ratio,：1 water and alcohol mixed solution；
(2) stainless steel base is placed in one, 3h is reacted at 80 DEG C；
(3) after washing with water step (2) products therefrom, 3h is calcined for 500 DEG C under air；
(4) hydro-thermal reaction 4h at 160 DEG C is placed it in the citric acid solution of 50g/L after being cooled to room temperature；
(5) by the product after reaction in inert atmosphere argon gas 500 DEG C calcining 4h to get this example dye sensitization of solar
Counter electrode of battery material.
The dye-sensitized solar cells of this example sees electrode material using one identical SEM and TEM of embodiment
It examines, and carries out XPS analysis.The results show that being connected to electrode material tin oxide/between carbon nanosheet and substrate of preparing of this example is tight
Close, Sn and C forms Sn-O-C coordinate bonds, and carbon layers having thicknesses about 8nm.
This example is prepared into dye-sensitized solar cells to electrode material, it is specific as follows：
Working electrode material by be adsorbed with 4,4'- dicarboxylic acids bipyridyl ruthenium (along two thiocyanates-it is bis- (bipyridyl -4 2,2'-,
4'- dicarboxylic acids) dowel (II)) (N3) dyestuff TiO2Membrane electrode forms.By TiO2Colloid even application is led to what is cleaned up
In electric substrate, 30 minutes obtained TiO of heat treatment are carried out at being then 450 DEG C in temperature2Membrane electrode, then by TiO2Electrode soaks
Enter a concentration of 5 × l0-4In the ethanol solution of the N3 dyestuffs of mol/L, is rinsed with absolute ethyl alcohol after taking-up, then dried, obtained
Dye-sensitized solar cell working electrode.
At the same time, this example using traditional platinum to electrode as a comparison.Platinum uses thermal decomposition method to the preparation of electrode：With
Isopropanol is solvent, and chloroplatinic acid is solute, is configured to 0.5mmol L-1Platinum acid chloride solution, take a small amount of platinum acid chloride solution with suction pipe
It is slowly dropped in FTO conductive substrates, dries to be placed in Muffle furnace at room temperature and be sintered 15min at 390 DEG C, be cooled to room temperature
Afterwards i.e. prepare be loaded with platinum to electrode.
The TiO of dyestuff will be adsorbed with2Working electrode material prepares quick at the dyestuff for test to electrode assembling with this example
Change solar cell；It will be adsorbed with the TiO of dyestuff as a comparison2Working electrode material and the platinum of preparation are also assembled into electrode dye
Expect sensitization solar battery.The assembling of battery is not tired herein to state with reference to conventional assembling mode..
IV songs are carried out to the dye-sensitized solar cells of this example assembling at AM1.5/25 DEG C using electrochemical workstation
Line is tested, and test result is shown, the photoelectric conversion efficiency of the dye-sensitized solar cells of this example is 8.49%, under the same terms
Platinum is 8.46% to the photoelectric conversion efficiency of electrode, it can be seen that, prepared by this example has reached electrode its performance even super
It has got over and platinum is to electrode, platinum can be replaced to electrode, as a kind of new non-platinum electrode material.
The foregoing is a further detailed description of the present application in conjunction with specific implementation manners, and it cannot be said that this Shen
Specific implementation please is confined to these explanations.For those of ordinary skill in the art to which this application belongs, it is not taking off
Under the premise of conceiving from the application, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the protection of the application
Range.
Claims (10)
1. a kind of dye-sensitized solar cells is to electrode material, it is characterised in that：Including substrate and it is adsorbed on substrate surface
The substrate surface of tin oxide nano strip array, adsorption and oxidation sijna rice strip array is also adsorbed with carbon nanosheet layer；Also, tin oxide
For nanometer strip array on the contact surface of carbon nanosheet layer, the Sn and C in carbon nanosheet layer in tin oxide nano item forms Sn-O-
C coordinate bonds.
2. dye-sensitized solar cells according to claim 1 is to electrode material, it is characterised in that：The oxidation sijna
Rice strip array adulterates SnO by N-shaped2It is formed, doped chemical is selected from least one of Nb, Ta and V.
3. dye-sensitized solar cells according to claim 1 or 2 is to electrode material, it is characterised in that：The substrate
For titanium sheet, stainless steel substrates or conduction FTO.
4. dye-sensitized solar cells according to claim 1 or 2 is to electrode material, it is characterised in that：The oxidation
The height of sijna rice strip array is 3-5 μm, and the thickness of the carbon nanosheet layer is 50-100nm.
5. it is a kind of using claim 1-4 any one of them dye-sensitized solar cells to the dye sensitization of electrode material too
Positive energy battery.
6. special according to claim 1-4 any one of them dye-sensitized solar cells to the preparation method of electrode material
Sign is：Include the following steps,
(1) it by tin source or tin source and doped chemical source, is dissolved in solvent together with thioacetamide, it is anti-to be configured to tin oxide
Answer liquid；
(2) substrate is placed in the tin oxide reaction solution of step (1) preparation, 2-10h is reacted at 25-100 DEG C；
(3) step is taken out (2) treated substrate, after washing with water, 300-500 DEG C of calcining 2-6h under air；
(4) by step (3), treated that substrate is cooled to room temperature is placed in carbon source aqueous solution, hydro-thermal reaction at 160-180 DEG C
2-6h；
(5) by step (4) treated substrate is placed in inert atmosphere 300-500 DEG C of calcining 2-6h, that is, it is quick that the dyestuff is made
Change solar cell to electrode material.
7. preparation method according to claim 6, it is characterised in that：The tin source is SnCl4·5H2O or SnCl2·
2H2O。
8. preparation method according to claim 6, it is characterised in that：The doped chemical source is TaCl5、NbCl5And VCl3
At least one of.
9. preparation method according to claim 6, it is characterised in that：The solvent be water, isopropanol and ethyl alcohol in extremely
Few one kind.
10. preparation method according to claim 6, it is characterised in that：Concentration of the tin source in tin oxide reaction solution
For 0.3-1mol/L, a concentration of 0.006M-0.1mol/L in the doped chemical source, a concentration of 0.2- of the thioacetamide
0.8mol/L。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710192473.XA CN108666140B (en) | 2017-03-28 | 2017-03-28 | Counter electrode material of dye-sensitized solar cell and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710192473.XA CN108666140B (en) | 2017-03-28 | 2017-03-28 | Counter electrode material of dye-sensitized solar cell and preparation method and application thereof |
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| CN110718400A (en) * | 2019-10-18 | 2020-01-21 | 中国地质大学（北京） | Preparation method of supercapacitor positive electrode material based on oxygen-deficient tin oxide nanosheet flower ball |
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