CN110323066A - A kind of dye-sensitized solar cells and preparation method thereof with graphite phase carbon nitride nanometer sheet boundary layer - Google Patents
A kind of dye-sensitized solar cells and preparation method thereof with graphite phase carbon nitride nanometer sheet boundary layer Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 104
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 97
- 239000010439 graphite Substances 0.000 title claims abstract description 97
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 39
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 32
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000006185 dispersion Substances 0.000 claims abstract description 29
- 239000003792 electrolyte Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 229910052786 argon Inorganic materials 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 22
- 239000003086 colorant Substances 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 239000012298 atmosphere Substances 0.000 claims abstract description 12
- 206010070834 Sensitisation Diseases 0.000 claims abstract description 4
- 230000008313 sensitization Effects 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims description 45
- HSZCZNFXUDYRKD-UHFFFAOYSA-M lithium iodide Chemical compound [Li+].[I-] HSZCZNFXUDYRKD-UHFFFAOYSA-M 0.000 claims description 37
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 28
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 27
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 19
- 229910052740 iodine Inorganic materials 0.000 claims description 19
- 239000011630 iodine Substances 0.000 claims description 19
- 239000012159 carrier gas Substances 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 18
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 18
- 235000019441 ethanol Nutrition 0.000 claims description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 15
- 238000007747 plating Methods 0.000 claims description 13
- 229910052697 platinum Inorganic materials 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000975 dye Substances 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 12
- 238000005245 sintering Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000002604 ultrasonography Methods 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- NPNMHHNXCILFEF-UHFFFAOYSA-N [F].[Sn]=O Chemical compound [F].[Sn]=O NPNMHHNXCILFEF-UHFFFAOYSA-N 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- 229960001296 zinc oxide Drugs 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 5
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 150000001298 alcohols Chemical group 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 125000004076 pyridyl group Chemical group 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 4
- QLKSCXOGMDNMRI-UHFFFAOYSA-N [Sn].[F+][O-] Chemical compound [Sn].[F+][O-] QLKSCXOGMDNMRI-UHFFFAOYSA-N 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 3
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000003570 air Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 235000011187 glycerol Nutrition 0.000 claims description 2
- RHZWSUVWRRXEJF-UHFFFAOYSA-N indium tin Chemical compound [In].[Sn] RHZWSUVWRRXEJF-UHFFFAOYSA-N 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 1
- 229920002472 Starch Polymers 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000008246 gaseous mixture Substances 0.000 claims 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 239000000178 monomer Substances 0.000 abstract 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract 1
- 239000012071 phase Substances 0.000 description 71
- 239000010410 layer Substances 0.000 description 45
- 150000001875 compounds Chemical class 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 238000011160 research Methods 0.000 description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 6
- 239000002202 Polyethylene glycol Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 229910017604 nitric acid Inorganic materials 0.000 description 6
- 229920001223 polyethylene glycol Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000005622 photoelectricity Effects 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229910021389 graphene Inorganic materials 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 206010018746 Growth accelerated Diseases 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- ZULTVNRFZRQYKL-UHFFFAOYSA-M fluorotin Chemical compound [Sn]F ZULTVNRFZRQYKL-UHFFFAOYSA-M 0.000 description 1
- 230000005661 hydrophobic surface Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/80—Constructional details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Hybrid Cells (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention discloses a kind of dye-sensitized solar cells and preparation method thereof with graphite phase carbon nitride nanometer sheet boundary layer, the battery by electrically conducting transparent substrate, graphite phase carbon nitride nanometer sheet boundary layer, sull, light-sensitive coloring agent, electrolyte and forms electrode, and graphite phase carbon nitride nanometer sheet boundary layer is arranged between electrically conducting transparent substrate and sull.When being prepared, the mixed dispersion liquid of graphite phase carbon nitride nanometer sheet and nitrogenous organic monomer is sprayed in electrically conducting transparent substrate, and obtains graphite phase carbon nitride nanometer sheet boundary layer after being heat-treated under the mixed atmosphere of nitrogen and argon gas.Then sull, and the finished product battery after the processes such as light-sensitive coloring agent sensitization, battery assembly are prepared.Graphite phase carbon nitride nanometer sheet boundary layer is introduced between electrically conducting transparent substrate and sull, can be effectively inhibited the defeated reaction of back pass in dye-sensitized solar cells, be greatly improved incident photon-to-electron conversion efficiency.
Description
Technical field
The present invention relates to a kind of dye-sensitized solar cells and preparation method thereof, lead in particular, being related to one kind transparent
A boundary layer being made of graphite phase carbon nitride nanometer sheet is introduced between electric substrate and sull, to obstruct electrolyte
Contact with substrate improves dye-sensitized solar cells and its preparation side of incident photon-to-electron conversion efficiency to inhibit the defeated reaction of back pass
Method.
Background technique
With the continuous explosive growth accelerated with world population of global industry process, human society is faced with huge
Energy demand.However, the energy consumption structure in the world is still based on the fossil energies such as coal, oil and natural gas now.
It is well known that the reserves of fossil energy are limited on the earth.Therefore, the contradiction between demand and reserves will cause serious
Energy crisis.In addition, the exploitation of fossil energy, transport and the process used inevitably brought to natural environment it is serious
Pollution problem.Therefore, developing environmental-friendly, reproducible new energy becomes human society in the great of this century urgent need to resolve
One of project.
In various new energies, solar energy is huge with its reserves, the time is permanent and using facilitate etc. unique advantages by
The common concern of numerous researchers.Currently, people are manufacture solar cells using the main method of solar energy, by solar energy
Electric energy is converted into be used.In miscellaneous solar cell, dye-sensitized solar cells with photoelectric conversion due to imitating
Rate is high, preparation process is relatively easy, the prices of raw materials are cheap, is suitable for many advantages such as large area industrialized production, has been each
A kind of novel solar cell that state competitively researches and develops.
Although dye-sensitized solar cells have many advantages, its efficiency and practical application are compared also certain poor
Away from.Influence the reason of its efficiency further increases first is that the defeated reaction of back pass existing for inside battery.Specifically, in battery
Electrolyte can penetrate into electrically conducting transparent bases by the hole in sull, and then send out with the light induced electron in substrate
Life is compound, forms the defeated reaction of so-called back pass.With common iodine and lithium iodide (I2/ LiI) for electrolyte, reaction equation is
2e-+I3 -→3I-, reaction mechanism is as shown in Figure 1.Back pass is defeated to react the effective output for greatly reducing light induced electron, seriously affects
The incident photon-to-electron conversion efficiency of battery.Therefore, contact of the electrolyte with conductive substrates is prevented, light induced electron and electricity can be effectively reduced
The compound of liquid is solved, inhibits the defeated reaction of back pass, significantly increases the photoelectric properties of dye-sensitized solar cells.
Currently, people, which mostly use, introduces the method for a boundary layer between electrically conducting transparent substrate and sull to reach
To said effect.And introduced boundary layer is mostly compact titanium dioxide layer, carbon nanotube layer or graphene layer.For densification
For titanium dioxide, the internal resistance of dye-sensitized solar cells is greatly increased, this is unprofitable to the improvement of battery performance.Carbon is received
For mitron or graphene, hydrophobic surface characteristic results in it and is difficult to form one between conductive substrates and sull
The complete and good boundary layer of electric conductivity.Therefore, the boundary layer using above-mentioned material preparation is inhibiting the defeated reaction side of back pass
The effect in face is limited.
Summary of the invention
It is an object of the invention to overcome in the prior art dye-sensitized solar cells since the defeated reaction of back pass reduces its light
The problem of electrical property, provides a kind of dye-sensitized solar cells and preparation method thereof with high light electrotransformation efficiency.
Technical purpose of the invention is achieved by following technical proposals:
A kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer, from bottom to top by electrically conducting transparent
Substrate, graphite phase carbon nitride nanometer sheet boundary layer, sull, light-sensitive coloring agent, electrolyte and to electrode form.
The electrically conducting transparent substrate is one of indium tin oxide electro-conductive glass or fluorine tin-oxide electro-conductive glass.
The sull is one of titanium deoxid film, tin dioxide thin film or zinc-oxide film.
The light-sensitive coloring agent is one of more pyridyl group complexs of metal Ru, such as: N3, N719 and Black dye.
The electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05-0.1molL-1, lithium iodide
Molar concentration be 0.1-0.2molL-1。
Described is one of indium tin oxide-coated glass of platinum plating or the fluorine oxide tin electro-conductive glass of platinum plating to electrode.
The graphite phase carbon nitride nanometer sheet boundary layer is made of graphite phase carbon nitride nanometer sheet, is distributed evenly in
Between bright conductive substrates and sull, with a thickness of 5-15nm.
A kind of preparation method of the dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer, according to following
Step carries out:
Step 1, graphite phase carbon nitride nanometer sheet is added in organic solvent, dispersion liquid is made after ultrasound；
Step 2, one of melamine, cyanamide, dicyandiamide, urea or thiocarbamide are added to made from step 1 and are divided
In dispersion liquid, mixing dispersion solution is obtained after continuing ultrasound；
In step 1, organic solvent is one of alcohols, esters, ketone or the ethers being in a liquid state at normal temperature, such as
Ethyl alcohol, ethyl acetate, acetone or ether.
In step 1, the power of ultrasonic disperse is 100-180W, time 30-60min.
In step 1, the power of ultrasonic disperse is 150-180W, time 40-60min.
In step 2, the power of ultrasonic disperse is 50-100W, time 10-20min.
In step 2, the power of ultrasonic disperse is 60-80W, time 15-20min.
In step 2, one in graphite phase carbon nitride nanometer sheet and melamine, cyanamide, dicyandiamide, urea or thiocarbamide
The mass ratio of kind is (50-150): (1-5), preferably (60-120): (1-5)；Graphite phase carbon nitride nanometer sheet and organic solvent
Mass volume ratio be (50-150) mg:200ml, preferably (80-120) mg:200ml.
Step 3, mixed dispersion liquid made from step 2 is sprayed in electrically conducting transparent substrate with carrier gas, in spraying process,
Carrier gas flux is 200-800sccm, and spray time 5-10min, base reservoir temperature is 50-90 DEG C；
In step 3, carrier gas is one of air, nitrogen, helium, neon or argon gas.
In step 3, carrier gas flux 400-600sccm, spray time 8-10min, base reservoir temperature are 60-90 DEG C.
In step 3, electrically conducting transparent substrate is in indium tin oxide electro-conductive glass or fluorine tin-oxide electro-conductive glass
It is a kind of.
Step 4, under inertia protective atmosphere, the transparent of graphite phase carbon nitride nanometer sheet will be coated with made from step 3
Conductive substrates are heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made and takes the photograph during heat treatment from room temperature 20-25
Family name's degree is warming up to 350-450 DEG C with 1-5 degrees Celsius per minute of speed and keeps the temperature 30-120min, later cooled to room temperature
20-25 degrees Celsius；
In step 4, inertia protective atmosphere is the mixed gas of nitrogen, argon gas or nitrogen and argon gas, nitrogen and argon
The molar ratio of gas is (1:3)-(3:1).
In step 4, during heat treatment, from 20-25 degrees Celsius of room temperature with 1-3 degrees Celsius per minute of speed liter
Temperature is to 380-420 DEG C and keeps the temperature 60-100min, later 20-25 degrees Celsius of cooled to room temperature.
Step 5, oxide slurry is coated in the electrically conducting transparent substrate with graphite phase carbon nitride nanometer sheet boundary layer,
After slurry is dry, it is sintered and obtains sull on graphite phase carbon nitride nanometer sheet boundary layer；During the sintering process, institute
It is the mixed gas of oxygen and argon gas with atmosphere, the molar ratio of oxygen and argon gas is (1:2)-(2:1), Celsius from room temperature 20-25
Degree is warming up to 300-400 DEG C with 1-5 degrees Celsius per minute of speed and keeps the temperature 30-60min, later cooled to room temperature
20-25 degrees Celsius；
In steps of 5,340-380 DEG C is warming up to simultaneously with 3-5 degrees Celsius per minute of speed from 20-25 degrees Celsius of room temperature
Keep the temperature 40-60min.
In steps of 5, the oxide in oxide slurry is one of titanium dioxide, stannic oxide or zinc oxide,
Oxide slurry is made of oxide, polyethylene glycol, nitric acid and water, is adequately mixed grinding and is made, wherein the number of polyethylene glycol
Average molecular weight is 8000-20000, and the mass percent of nitric acid is 70-75wt%, and oxide dosage is 0.5-1 mass parts,
Polyethylene glycol dosage is 0.1-0.5 mass parts, and nitric acid dosage is 1-5 parts by volume, and the dosage of water is 30-40 parts by volume, each
Mass parts are 1g, and each parts by volume is 1ml, and milling time is 30-60min.
Step 6, the electrically conducting transparent of graphite phase carbon nitride nanometer sheet boundary layer and sull will be had made from step 5
Substrate immerses light-sensitive coloring agent solution and is impregnated, to realize that dye sensitization prepares light anode；
In step 6, dipping temperature is 20-30 degrees Celsius, and dip time is 6-12 hours.
In step 6, light-sensitive coloring agent be metal Ru one of more pyridyl group complexs, such as: N3, N719 and
blackdye；Light-sensitive coloring agent solution solvent for use is one of the alcohols being in a liquid state under room temperature, such as ethyl alcohol, glycerine；It is photosensitive
The mass concentration of dyestuff is 0.2-0.6mgL-1。
Step 7, by light anode obtained in step 6 and electrolyte, be packaged together to electrode, finished battery is made.
In step 7, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05-0.1molL-1,
The molar concentration of lithium iodide is 0.1-0.2molL-1；Oxidation to indium tin oxide-coated glass or platinum plating that electrode is platinum plating
One of fluorine tin electro-conductive glass.
In the inventive solutions, block graphite phase carbon nitride material can be obtained by simple ultrasound removing
To the graphite phase carbon nitride nanometer sheet haveing excellent performance.As a kind of two-dimension nano materials haveing excellent performance, graphite phase carbon nitride is received
Rice piece can be introduced between electrically conducting transparent substrate and sull as interlayer materials, to inhibit the dye sensitization sun
The defeated reaction of the back pass of battery.Compared with compact titanium dioxide, graphite phase carbon nitride nanometer sheet has lesser resistivity, as boundary
After surface layer is introduced into, excessive influence will not be caused on the internal resistance of dye-sensitized solar cells.With carbon nanotube or graphene
It compares, the surface chemical property and conductive substrates and sull of graphite phase carbon nitride nanometer sheet more match, Er Qieqi
Surface also has functional group abundant, and a complete and electric conductivity can be formed between conductive substrates and sull
Good boundary layer inhibits the defeated reaction of back pass so as to effectively prevent contact of the electrolyte with conductive substrates, and it is quick to improve dyestuff
Change the photoelectric properties of solar cell.
The graphite phase carbon nitride nanometer sheet that the present invention utilizes is a kind of New Two Dimensional nano material that developed recently gets up, tool
There are ideal two-dimensional nanostructure, excellent optical property, surface functional group abundant.It is introduced as interlayer materials saturating
Compound, the inhibition defeated reaction of back pass of light induced electron and electrolyte can be effectively reduced between bright conductive substrates and sull,
The photoelectric conversion performance of dye-sensitized solar cells is improved, the mechanism of action is as shown in Figure 2.
Detailed description of the invention
Fig. 1 is the defeated reaction mechanism schematic diagram of dye-sensitized solar cells back pass, wherein 1: electrically conducting transparent substrate；2: photoproduction electricity
Son；3: adsorbing the sull of dyestuff；4: the I in electrolyte3 -Ion；5: the I in electrolyte-Ion.
Fig. 2 is that graphite phase carbon nitride nanometer sheet boundary layer inhibits the defeated reaction mechanism schematic diagram of back pass, wherein 1: electrically conducting transparent
Substrate；2: light induced electron；3: graphite phase carbon nitride nanometer sheet boundary layer；4: adsorbing the sull of dyestuff；5: in electrolyte
I3 -Ion；6: the I in electrolyte-Ion.
Fig. 3 is the transmission electron microscope photo of graphite phase carbon nitride nanometer sheet.
Fig. 4 is thickness/scanning range curve test using the graphite phase carbon nitride nanometer sheet of atomic force microscope measurement
Figure.
Specific embodiment
Technical solution of the present invention is further illustrated combined with specific embodiments below.Muffle furnace is selected to carry out at heating and heat preservation
Reason, heating rate are 5 degrees Celsius per minute；Oxide slurry selection it is commercially available, or carry out using when configure it is as follows:
(1) it is by 0.5g titania powder, 0.2g polyethylene glycol (number-average molecular weight 20000), 2ml mass concentration (mass percent)
75% nitric acid and 30ml deionized water is put into agate mortar jointly, obtains titania slurry after grinding 30min；(2) will
0.5g stannic oxide powder, 0.2g polyethylene glycol (number-average molecular weight 20000), 2ml mass concentration (mass percent) are 75%
Nitric acid and 30ml deionized water be put into agate mortar jointly, grind 30min after obtain stannic oxide slurry；(3) by 0.5g
Zinc oxide powder, 0.2g polyethylene glycol (number-average molecular weight 20000), the nitric acid that 2ml mass concentration (mass percent) is 75%
It is put into agate mortar jointly with 30ml deionized water, obtains zinc oxide slurry after grinding 30min.
Reference implementation example:
Graphite phase carbon nitride nanometer sheet employed in the embodiment of the present invention is by by graphite phase carbon nitride block materials
It is obtained after ultrasound removing in sulfuric acid solution, the specific steps are as follows: (1) 50mg graphite phase carbon nitride block is put into agate and ground
30min is ground in alms bowl, obtains graphite phase carbon nitride powder.(2) the graphite phase carbon nitride powder obtained after grinding is added to
In 100ml, the sulfuric acid solution that mass concentration is 50%, and system is ultrasonically treated 10h.(3) after being ultrasonically treated, by liquid phase
System is in 3000rmin-1Revolving speed under be centrifuged, obtain graphite phase carbon nitride nanometer sheet.(4) by the stone after separation
Black phase carbon nitride nanometer sheet is rinsed three times with the deionized water of 500ml, and spare after dry 12h in 80 DEG C.
Graphite phase carbon nitride is observed using Flied emission transmission electron microscope (FEI Co., the U.S., Tecnai-G2-F20 type)
The microscopic appearance of nanometer sheet, gained graphite phase carbon nitride nanometer sheet structure in the form of sheets as the result is shown, there are some folds on surface, thick
Spend it is relatively thin, as shown in Figure 3.Institute is measured using atomic force microscope (Asylum Research company, the U.S., MFP-3D-SA type)
Graphite phase carbon nitride nanometer sheet thickness, as the result is shown gained graphite phase carbon nitride nanometer sheet with a thickness of 1nm, such as Fig. 4 institute
Show.
Embodiment 1
(1) the graphite phase carbon nitride nanometer sheet of 50mg is added in the ethyl alcohol of 200ml, it is ultrasonic under the power of 100W
Dispersion liquid is obtained after 30min.
(2) melamine of 1mg is added in dispersion liquid made from step (1), continues ultrasound under the power of 50W
Mixed dispersion liquid is obtained after 10min.
(3) using air as carrier gas, mixed dispersion liquid made from step (2) is sprayed into indium tin oxide electro-conductive glass
On.In spraying process, carrier gas flux 200sccm, spray time 5min, base reservoir temperature are 50 DEG C.
(4) under the mixed gas of nitrogen and argon gas that molar ratio is (1:3), graphite will be coated with made from step (3)
The indium tin oxide electro-conductive glass of phase carbon nitride nanometer sheet is heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made.?
In heat treatment process, temperature is 350 DEG C, time 30min.By atomic force microscope, (U.S. Asylum Research is public
Department, MFP-3D-SA type) measurement, gained graphite phase carbon nitride nanometer sheet boundary layer with a thickness of 5nm.
(5) titania slurry is coated in the indium tin oxide conduction glass with graphite phase carbon nitride nanometer sheet boundary layer
On glass.After slurry is dry, titanium deoxid film is obtained through sintering.During the sintering process, it is (1:2) that atmosphere used, which is molar ratio,
Oxygen and argon gas mixed gas, temperature be 300 DEG C, time 30min.
(6) by step (5) the indium tin oxygen obtained for having graphite phase carbon nitride nanometer sheet boundary layer and titanium deoxid film
It is 0.2mgL that mass concentration is immersed at compound electro-conductive glass bottom-1N3 light-sensitive coloring agent ethanol solution in, dip time 12h,
Light anode is made after taking-up.
(7) by light anode obtained in step (6) and electrolyte, be packaged together to electrode, finished battery is made.Its
In, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05molL-1, the molar concentration of lithium iodide is
0.1mol·L-1, it is the indium tin oxide electro-conductive glass of platinum plating to electrode.
In AM1.5 (energy density 100mWcm-2) simulated solar irradiation under test, the incident photon-to-electron conversion efficiency of the battery
Be 15.5%, and under equal conditions obtained dye-sensitized solar cells without graphite phase carbon nitride nanometer sheet boundary layer photoelectricity
Transformation efficiency is only 7.0%.
Embodiment 2
(1) the graphite phase carbon nitride nanometer sheet of 150mg is added in the acetone of 200ml, it is ultrasonic under the power of 180W
Dispersion liquid is obtained after 60min.
(2) thiocarbamide of 5mg is added in dispersion liquid made from step (1), continues ultrasound 20min under the power of 100W
After obtain mixed dispersion liquid.
(3) using argon gas as carrier gas, mixed dispersion liquid made from step (2) is sprayed into fluorine tin-oxide electro-conductive glass
On.In spraying process, carrier gas flux 800sccm, spray time 10min, base reservoir temperature are 90 DEG C.
(4) under the mixed gas of nitrogen and argon gas that molar ratio is (3:1), graphite will be coated with made from step (3)
The fluorine tin-oxide electro-conductive glass of phase carbon nitride nanometer sheet is heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made.?
In heat treatment process, temperature is 450 DEG C, time 120min.By atomic force microscope, (U.S. Asylum Research is public
Department, MFP-3D-SA type) measurement, gained graphite phase carbon nitride nanometer sheet boundary layer with a thickness of 15nm.
(5) zinc oxide slurry is coated in the fluorine tin-oxide electro-conductive glass with graphite phase carbon nitride nanometer sheet boundary layer
On.After slurry is dry, zinc-oxide film is obtained through sintering.During the sintering process, atmosphere used is the oxygen that molar ratio is (2:1)
The mixed gas of gas and argon gas, temperature are 400 DEG C, time 60min.
(6) step (5) the indium tin obtained with graphite phase carbon nitride nanometer sheet boundary layer and zinc-oxide film is aoxidized
It is 0.6mgL that mass concentration is immersed at object electro-conductive glass bottom-1N719 light-sensitive coloring agent acetone soln in, dip time 12h,
Light anode is made after taking-up.
(7) by light anode obtained in step (6) and electrolyte, be packaged together to electrode, finished battery is made.Its
In, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.1molL-1, the molar concentration of lithium iodide is
0.2mol·L-1, it is the fluorine tin-oxide electro-conductive glass of platinum plating to electrode.
In AM1.5 (energy density 100mWcm-2) simulated solar irradiation under test, the incident photon-to-electron conversion efficiency of the battery
Be 16.3%, and under equal conditions obtained dye-sensitized solar cells without graphite phase carbon nitride nanometer sheet boundary layer photoelectricity
Transformation efficiency is only 7.2%.
Embodiment 3
(1) the graphite phase carbon nitride nanometer sheet of 100mg is added in the ethyl alcohol of 200ml, it is ultrasonic under the power of 150W
Dispersion liquid is obtained after 45min.
(2) urea of 3mg is added in dispersion liquid made from step (1), continues ultrasound 15min under the power of 75W
After obtain mixed dispersion liquid.
(3) with nitrogen as carrier gas, mixed dispersion liquid made from step (2) is sprayed into indium tin oxide electro-conductive glass
On.In spraying process, carrier gas flux 500sccm, spray time 7min, base reservoir temperature are 70 DEG C.
(4) under the mixed gas of nitrogen and argon gas that molar ratio is (1:1), graphite will be coated with made from step (3)
The indium tin oxide electro-conductive glass of phase carbon nitride nanometer sheet is heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made.?
In heat treatment process, temperature is 400 DEG C, time 90min.By atomic force microscope, (U.S. Asylum Research is public
Department, MFP-3D-SA type) measurement, gained graphite phase carbon nitride nanometer sheet boundary layer with a thickness of 9nm.
(5) stannic oxide slurry is coated in the indium tin oxide conduction glass with graphite phase carbon nitride nanometer sheet boundary layer
On glass.After slurry is dry, tin dioxide thin film is obtained through sintering.During the sintering process, it is (1:1) that atmosphere used, which is molar ratio,
Oxygen and argon gas mixed gas, temperature be 350 DEG C, time 45min.
(6) by step (5) the indium tin oxygen obtained for having graphite phase carbon nitride nanometer sheet boundary layer and tin dioxide thin film
It is 0.4mgL that mass concentration is immersed at compound electro-conductive glass bottom-1Black dye light-sensitive coloring agent ethanol solution in, dip time
For 12h, light anode is made after taking-up.
(7) by light anode obtained in step (6) and electrolyte, be packaged together to electrode, finished battery is made.Its
In, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05molL-1, the molar concentration of lithium iodide is
0.1mol·L-1, it is the indium tin oxide electro-conductive glass of platinum plating to electrode.
In AM1.5 (energy density 100mWcm-2) simulated solar irradiation under test, the incident photon-to-electron conversion efficiency of the battery
Be 16.6%, and under equal conditions obtained dye-sensitized solar cells without graphite phase carbon nitride nanometer sheet boundary layer photoelectricity
Transformation efficiency is only 8.1%.
Embodiment 4
(1) the graphite phase carbon nitride nanometer sheet of 50mg is added in the ethyl alcohol of 200ml, it is ultrasonic under the power of 180W
Dispersion liquid is obtained after 60min.
(2) the amine cyanogen of 1mg is added in dispersion liquid made from step (1), continues ultrasound 20min under the power of 50W
After obtain mixed dispersion liquid.
(3) using helium as carrier gas, mixed dispersion liquid made from step (2) is sprayed into indium tin oxide electro-conductive glass
On.In spraying process, carrier gas flux 200sccm, spray time 10min, base reservoir temperature are 90 DEG C.
(4) under the mixed gas of nitrogen and argon gas that molar ratio is (1:3), graphite will be coated with made from step (3)
The indium tin oxide electro-conductive glass of phase carbon nitride nanometer sheet is heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made.?
In heat treatment process, temperature is 450 DEG C, time 120min.By atomic force microscope, (U.S. Asylum Research is public
Department, MFP-3D-SA type) measurement, gained graphite phase carbon nitride nanometer sheet boundary layer with a thickness of 11nm.
(5) titania slurry is coated in the indium tin oxide conduction glass with graphite phase carbon nitride nanometer sheet boundary layer
On glass.After slurry is dry, titanium deoxid film is obtained through sintering.During the sintering process, it is (1:2) that atmosphere used, which is molar ratio,
Oxygen and argon gas mixed gas, temperature be 400 DEG C, time 60min.
(6) by step (5) the indium tin oxygen obtained for having graphite phase carbon nitride nanometer sheet boundary layer and titanium deoxid film
It is 0.2mgL that mass concentration is immersed at compound electro-conductive glass bottom-1N3 light-sensitive coloring agent ethanol solution in, dip time 12h,
Light anode is made after taking-up.
(7) by light anode obtained in step (6) and electrolyte, be packaged together to electrode, finished battery is made.Its
In, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05molL-1, the molar concentration of lithium iodide is
0.2mol·L-1, it is the indium tin oxide electro-conductive glass of platinum plating to electrode.
In AM1.5 (energy density 100mWcm-2) simulated solar irradiation under test, the incident photon-to-electron conversion efficiency of the battery
Be 17.1%, and under equal conditions obtained dye-sensitized solar cells without graphite phase carbon nitride nanometer sheet boundary layer photoelectricity
Transformation efficiency is only 7.2%.
Embodiment 5
(1) the graphite phase carbon nitride nanometer sheet of 150mg is added in the ethyl alcohol of 200ml, it is ultrasonic under the power of 100W
Dispersion liquid is obtained after 30min.
(2) dicyandiamide of 5mg is added in dispersion liquid made from step (1), continues ultrasound under the power of 50W
Mixed dispersion liquid is obtained after 10min.
(3) using neon as carrier gas, mixed dispersion liquid made from step (2) is sprayed into indium tin oxide electro-conductive glass
On.In spraying process, carrier gas flux 800sccm, spray time 5min, base reservoir temperature are 50 DEG C.
(4) under the mixed gas of nitrogen and argon gas that molar ratio is (3:1), graphite will be coated with made from step (3)
The indium tin oxide electro-conductive glass of phase carbon nitride nanometer sheet is heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made.?
In heat treatment process, temperature is 350 DEG C, time 30min.By atomic force microscope, (U.S. Asylum Research is public
Department, MFP-3D-SA type) measurement, gained graphite phase carbon nitride nanometer sheet boundary layer with a thickness of 8nm.
(5) titania slurry is coated in the indium tin oxide conduction glass with graphite phase carbon nitride nanometer sheet boundary layer
On glass.After slurry is dry, titanium deoxid film is obtained through sintering.During the sintering process, it is (2:1) that atmosphere used, which is molar ratio,
Oxygen and argon gas mixed gas, temperature be 300 DEG C, time 30min.
(6) by step (5) the indium tin oxygen obtained for having graphite phase carbon nitride nanometer sheet boundary layer and titanium deoxid film
It is 0.6mgL that mass concentration is immersed at compound electro-conductive glass bottom-1N719 light-sensitive coloring agent ethanol solution in, dip time is
Light anode is made in 12h after taking-up.
(7) by light anode obtained in step (6) and electrolyte, be packaged together to electrode, finished battery is made.Its
In, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.1molL-1, the molar concentration of lithium iodide is
0.1mol·L-1, it is the indium tin oxide electro-conductive glass of platinum plating to electrode.
In AM1.5 (energy density 100mWcm-2) simulated solar irradiation under test, the incident photon-to-electron conversion efficiency of the battery
Be 16.7%, and under equal conditions obtained dye-sensitized solar cells without graphite phase carbon nitride nanometer sheet boundary layer photoelectricity
Transformation efficiency is only 7.9%.
Content carries out the adjustment of technological parameter according to the present invention, the preparation of solar cell of the present invention can be achieved, and show
The performance almost the same with embodiment out.Illustrative description is done to the present invention above, it should which explanation is not departing from this
In the case where the core of invention, any simple deformation, modification or other skilled in the art can not spend creativeness
The equivalent replacement of labour each falls within protection scope of the present invention.
Claims (10)
1. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer, which is characterized in that from bottom to top
By electrically conducting transparent substrate, graphite phase carbon nitride nanometer sheet boundary layer, sull, light-sensitive coloring agent, electrolyte and to electrode group
At sull is one of titanium deoxid film, tin dioxide thin film or zinc-oxide film, and graphite phase carbon nitride is received
Rice piece boundary layer is made of graphite phase carbon nitride nanometer sheet, be distributed evenly in electrically conducting transparent substrate and sull it
Between, with a thickness of 5-15nm.
2. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 1,
It is characterized in that, the electrically conducting transparent substrate is one in indium tin oxide electro-conductive glass or fluorine tin-oxide electro-conductive glass
Kind；Described is one of indium tin oxide-coated glass of platinum plating or the fluorine oxide tin electro-conductive glass of platinum plating to electrode.
3. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 1,
It is characterized in that, the light-sensitive coloring agent is one of more pyridyl group complexs of metal Ru, such as: N3, N719 and Black
dye；The electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05-0.1molL-1, lithium iodide rubs
Your concentration is 0.1-0.2molL-1。
4. a kind of preparation method of the dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer, feature exist
In progress as steps described below:
Step 1, graphite phase carbon nitride nanometer sheet is added in organic solvent, dispersion liquid is made after ultrasound；
Step 2, one of melamine, cyanamide, dicyandiamide, urea or thiocarbamide are added to dispersion liquid made from step 1
In, mixing dispersion solution is obtained after continuing ultrasound；
Step 3, mixed dispersion liquid made from step 2 is sprayed in electrically conducting transparent substrate with carrier gas, in spraying process, carrier gas
Flow is 200-800sccm, and spray time 5-10min, base reservoir temperature is 50-90 DEG C；
Step 4, under inertia protective atmosphere, the electrically conducting transparent of graphite phase carbon nitride nanometer sheet will be coated with made from step 3
Substrate is heat-treated, and graphite phase carbon nitride nanometer sheet boundary layer is made, during heat treatment, from 20-25 degrees Celsius of room temperature
350-450 DEG C is warming up to 1-5 degrees Celsius per minute of speed and keeps the temperature 30-120min, later cooled to room temperature 20-
25 degrees Celsius；
Step 5, oxide slurry is coated in the electrically conducting transparent substrate with graphite phase carbon nitride nanometer sheet boundary layer, wait starch
After material is dry, it is sintered and obtains sull on graphite phase carbon nitride nanometer sheet boundary layer；During the sintering process, gas used
Atmosphere is the mixed gas of oxygen and argon gas, and the molar ratio of oxygen and argon gas is (1:2)-(2:1), from 20-25 degrees Celsius of room temperature with
1-5 degrees Celsius per minute of speed is warming up to 300-400 DEG C and keeps the temperature 30-60min, later cooled to room temperature 20-25
Degree Celsius；
Step 6, the electrically conducting transparent substrate of graphite phase carbon nitride nanometer sheet boundary layer and sull will be had made from step 5
It immerses light-sensitive coloring agent solution to be impregnated, to realize that dye sensitization prepares light anode；
Step 7, by light anode obtained in step 6 and electrolyte, be packaged together to electrode, finished battery is made.
5. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 4
Preparation method, which is characterized in that in step 1, organic solvent is alcohols, esters, ketone or the ether being in a liquid state at normal temperature
One of class, such as ethyl alcohol, ethyl acetate, acetone or ether；In step 1, the power of ultrasonic disperse is 100-180W, when
Between be 30-60min, preferably the power of ultrasonic disperse be 150-180W, time 40-60min；In step 2, ultrasonic disperse
Power is 50-100W, time 10-20min, and the preferably power of ultrasonic disperse is 60-80W, time 15-20min；Graphite-phase
The mass ratio of one of azotized carbon nano piece and melamine, cyanamide, dicyandiamide, urea or thiocarbamide is (50-150):
(1-5), preferably (60-120): (1-5)；The mass volume ratio of graphite phase carbon nitride nanometer sheet and organic solvent is (50-150)
Mg:200ml, preferably (80-120) mg:200ml.
6. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 4
Preparation method, which is characterized in that in step 3, carrier gas is one of air, nitrogen, helium, neon or argon gas；Carrier gas
Flow is 400-600sccm, and spray time 8-10min, base reservoir temperature is 60-90 DEG C；Electrically conducting transparent substrate is the oxidation of indium tin
One of object electro-conductive glass or fluorine tin-oxide electro-conductive glass.
7. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 4
Preparation method, which is characterized in that in step 4, inertia protective atmosphere is the gaseous mixture of nitrogen, argon gas or nitrogen and argon gas
The molar ratio of body, nitrogen and argon gas is (1:3)-(3:1)；During heat treatment, from 20-25 degrees Celsius of room temperature with per minute
1-3 degrees Celsius of speed is warming up to 380-420 DEG C and keeps the temperature 60-100min, and cooled to room temperature 20-25 is Celsius later
Degree.
8. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 4
Preparation method, which is characterized in that in steps of 5, heated up from 20-25 degrees Celsius of room temperature with 3-5 degrees Celsius per minute of speed
To 340-380 DEG C and keep the temperature 40-60min；Oxide in oxide slurry is in titanium dioxide, stannic oxide or zinc oxide
One kind.
9. a kind of dye-sensitized solar cells with graphite phase carbon nitride nanometer sheet boundary layer according to claim 4
Preparation method, which is characterized in that in step 6, dipping temperature is 20-30 degrees Celsius, and dip time is 6-12 hours；It is photosensitive
Dyestuff is one of more pyridyl group complexs of metal Ru, such as: N3, N719 and black dye；It is molten used in light-sensitive coloring agent solution
Agent is one of the alcohols being in a liquid state under room temperature, such as ethyl alcohol, glycerine；The mass concentration of light-sensitive coloring agent is 0.2-0.6mg
L-1；In step 7, electrolyte is the acetonitrile solution of iodine and lithium iodide, and the molar concentration of iodine is 0.05-0.1molL-1, iodate
The molar concentration of lithium is 0.1-0.2molL-1；To the fluorine oxide tin of indium tin oxide-coated glass or platinum plating that electrode is platinum plating
One of electro-conductive glass.
10. application of the graphite phase carbon nitride nanometer sheet in dye-sensitized solar cells, which is characterized in that prevent electrolyte and lead
The contact of electric substrate inhibits the defeated reaction of back pass.
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| CN104362412A (en) * | 2014-09-22 | 2015-02-18 | 广州大学 | ZnO/g-C3N4 nanocomposite and preparation method thereof |
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| CN102142317A (en) * | 2011-01-14 | 2011-08-03 | 天津师范大学 | Solar battery with graphite interface layer and manufacturing method thereof |
| CN103506141A (en) * | 2013-09-29 | 2014-01-15 | 太原理工大学 | Method for preparing visible light photocatalytic material and application thereof |
| CN104362412A (en) * | 2014-09-22 | 2015-02-18 | 广州大学 | ZnO/g-C3N4 nanocomposite and preparation method thereof |
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