CN105977032A - Dye sensitized solar cell capable of generating electricity on rainy days, preparation method and application thereof - Google Patents
Dye sensitized solar cell capable of generating electricity on rainy days, preparation method and application thereof Download PDFInfo
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- CN105977032A CN105977032A CN201610339543.5A CN201610339543A CN105977032A CN 105977032 A CN105977032 A CN 105977032A CN 201610339543 A CN201610339543 A CN 201610339543A CN 105977032 A CN105977032 A CN 105977032A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 230000005611 electricity Effects 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 26
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001962 electrophoresis Methods 0.000 claims abstract description 7
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 4
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 32
- 239000000243 solution Substances 0.000 claims description 29
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- XURCIPRUUASYLR-UHFFFAOYSA-N Omeprazole sulfide Chemical compound N=1C2=CC(OC)=CC=C2NC=1SCC1=NC=C(C)C(OC)=C1C XURCIPRUUASYLR-UHFFFAOYSA-N 0.000 claims description 9
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 239000011244 liquid electrolyte Substances 0.000 claims description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 5
- 239000000975 dye Substances 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 238000005286 illumination Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 239000011259 mixed solution Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000002322 conducting polymer Substances 0.000 claims description 3
- 229920001940 conductive polymer Polymers 0.000 claims description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 3
- 229910000043 hydrogen iodide Inorganic materials 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000033116 oxidation-reduction process Effects 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 235000010344 sodium nitrate Nutrition 0.000 claims description 3
- 239000004317 sodium nitrate Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000003837 high-temperature calcination Methods 0.000 claims description 2
- 238000005204 segregation Methods 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract 2
- 238000004088 simulation Methods 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000005049 combustion synthesis Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229930192419 itoside Natural products 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 239000003643 water by type 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
- H01G9/20—Light-sensitive devices
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Hybrid Cells (AREA)
Abstract
The invention provides a dye sensitized solar cell capable of generating electricity on rainy days, preparation method and application thereof. The graphene oxide is deposited on an ITO conductive glass substrate by electrophoresis and is reduced to form a graphene electrode, and a pair electrode is deposited on an FTO conductive glass substrate or a platinum sheet is taken as a pair electrode to be combined with a dye sensitized solar cell to form a novel solar cell. The high stability, good conductivity, and high cation adsorptivity of grapheme are fully utilized, and through creative design, the performance of generating electricity on rainy days is endowed to the dye sensitized solar cell. The preparation method of the solar cell capable of generating electricity on rainy days is simple, the performance is stable, and the cost is low.
Description
Technical field
The invention belongs to area of solar cell, relate to a kind of can be at DSSC and its preparation method and application of rainy day generating.
Background technology
At present, solaode still occupies critical role in economic development, but because it uses condition limited, can only use under fine day and illumination sufficiency, therefore find a kind of novel efficient and to adapt to the solaode of different weather be current mankind major issue urgently to be resolved hurrily.Graphene has good adsorptivity to the cation in rainwater, the DSSC compound with Graphene overcomes the problem that the rainy day can not generate electricity, therefore, exploitation can have important theory significance and practical value at the DSSC of rainy day generating.
Summary of the invention
It is an object of the invention to use the circumscribed shortcoming of condition for existing solaode, provide a kind of can be at DSSC and its preparation method and application of rainy day generating, first the present invention is to prepare Graphene electrodes, then prepare DSSC, be finally combined the DSSC obtaining generating electricity in the rainy day.It is simple that the present invention makes full use of graphene preparation method, and stability is high, excellent adsorption, and conductivity is high, the advantage that delocalized electron is abundant, it is provided that can be at the DSSC of rainy day generating.
For achieving the above object, the present invention is achieved by the following technical solutions:
The invention provides a kind of can be in the preparation method of DSSC of rainy day generating, it comprises the following steps:
(1), under condition of ice bath by graphite powder: sodium nitrate: potassium permanganate according to mass ratio be 1～2:1:5～8 dispersion in concentrated sulfuric acid, stirring prepare mixed solution；
(2), remove ice bath, described mixed solution is heated and stirs, add deionized water and hydrogen peroxide until bubble collapse；
(3), again by solution centrifugal and clean to supernatant pH=3～4, being dispersed back in water by the mixture obtained and ultrasonic disperse, centrifugal segregation black residue obtains unit for uniform suspension；
(4), being dissolved in acetylacetone,2,4-pentanedione by indium nitrate, and drip diethanolamine, compound concentration is the indium nitrate acetylacetone,2,4-pentanedione solution of 0.1～0.2mol/L, refluxes, stirs under 60 C～65 C；
(5), stannic chloride is dissolved in ethanol, prepare saturated stannic chloride ethanol solution；
(6), by indium/stannum mol ratio it is 8～12:1 described indium nitrate acetylacetone,2,4-pentanedione solution to be mixed with described saturated stannic chloride ethanol solution, prepares ITO colloidal sol；
(7), the ITO colloidal sol in step (6) is spin-coated to the glass surface of FTO electro-conductive glass, through calcining, prepares deposition ITO/ glass/FTO electro-conductive glass；
(8), in the unit for uniform suspension of step (3), put into the ITO/ glass/FTO electro-conductive glass of step (7), use electrophoresis method at ITO layer deposited oxide Graphene；
(9), by the ITO/ glass/FTO electro-conductive glass of load graphene oxide in step (8) put into and hydrogen iodide soaks reduction in 10～15 hours, obtain loading the ITO/ glass/FTO electrode of Graphene；
(10), deposit electrode on the FTO layer of the ITO/ glass/FTO electrode of the load Graphene in step (9)；
(11), preparing colloidal tio 2, be applied to by colloidal tio 2 on FTO electro-conductive glass matrix, mesoporous titanium dioxide film is prepared in high-temperature calcination；
(12) dyestuff of the titanium deoxid film immersion 0.2～0.5mmol/L, step (11) prepared forms dye-sensitized titania light anode；
(13), ITO/ glass/FTO dye-sensitized titania light anode combination prepared by electrode and step (12) of load Graphene of preparing of described step (10), and inject in centre liquid electrolyte be assembled into described can be at the DSSC of rainy day generating.
Further: in described step (2) by described solution by heating in water bath to 30～40 C, and stir 30～40 minutes.
Further: in described step (4), diethanolamine adds 1～3.
Further: the electrophoresis method deposition voltage used in described step (8) is 5V, and the time is 2 hours.
Further: in described step (10) is the one in platinum, alloy, conducting polymer, carbon, compound to electrode.
Further: it is 5～15 m that described step (11) controls thickness, within 30 minutes, prepare mesoporous titanium dioxide film through 450 ° of C calcinings.
Further: the liquid electrolyte in described step (13) is containing I-/I3 -The acetonitrile solution of oxidation-reduction pair.
Present invention also offers the DSSC that can generate electricity that described preparation method prepares in the rainy day.
Present invention also offers the described application that can generate electricity under the DSSC of rainy day generating is at illumination condition, the open-circuit voltage of described DSSC is 650～800 mV, short circuit current is 8～18mA cm-2, fill factor, curve factor be 0.5～0.8, photoelectric transformation efficiency be 5.0～11.0%.
Present invention also offers described can be in the application of generating under the conditions of raining of the DSSC of rainy day generating, the electric current of described DSSC is that 0.9～4.9 μ A/ drip rain, voltage is that 30～60 μ V/ drip rain, power is 30～300pW/ to drip rain.
After the present invention uses technique scheme, mainly have the advantage that
(1), applied range.Described can have good adsorptivity at the DSSC of rainy day generating to rainwater cationic, makes rainy day generating satisfy the requirements.
(2), good stability.The DSSC that can generate electricity in the rainy day prepared according to described technical scheme, the most undamped phenomenon of current/voltage in 1000s.
(3), preparation method is simple.Graphene is prepared by Hummers method, and preparation method is simple.
The inventive method is simple and easy to do, with low cost, use prepared by the present invention can high in the DSSC stability of rainy day generating, electrical conductivity is good, cation-adsorption is good.Can be not only used for generating on daytime, it is also possible to broader applications are in rain water electricity generating etc..
Accompanying drawing explanation
Fig. 1 is the DSSC structural representation that can generate electricity in the rainy day prepared by the present invention.
Fig. 2 is to drip the electric current under speed, voltage, power output figure at the DSSC of rainy day generating at different Simulated rainwater prepared by the present invention, wherein figure a is map of current, figure b is voltage pattern, figure c is power diagram, and figure d is raindrop contact angle in Graphene electrodes and the dropping electric current of pure water and voltage output figure.
Fig. 3 is can be at the DSSC of rainy day generating electric current under variable concentrations Simulated rainwater, voltage, power output figure prepared by the present invention, and wherein figure a is map of current, and figure b is voltage pattern, and figure c is power output figure.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme is described in further detail.
Embodiment 1
One, of the present invention there is high adsorption and high stability can specifically include following steps in the preparation method of the DSSC of rainy day generating:
1, natural graphite powder, sodium nitrate and potassium permanganate are dissolved in the concentrated sulphuric acid that mass fraction is 98% according to mass ratio 1:1:5 under condition of ice bath, stir 5～10 minutes.
2, remove ice bath, described solution is heated to 35 DEG C, after stirring 30～40 minutes, add 60～100mL deionized waters and hydrogen peroxide that 10～20mL mass fractions are 30% until bubble collapse.
3, described solution is centrifuged 30 minutes under rotating speed 7200rpm, and clean to supernatant pH=3～4, the mixture obtained is dispersed back in water and ultrasonic 15～20 minutes, then removes black residue under rotating speed 3000rpm after centrifugal 3 minutes and obtains unit for uniform suspension.
4, indium nitrate is dissolved in acetylacetone,2,4-pentanedione, and drips 2 diethanolamine, compound concentration be 0.1～0.2mol/L indium nitrate solution reflux under 60 C～65 C, stir.
5, stannic chloride is dissolved in ethanol, prepare saturated stannic chloride ethanol solution.
6, it is that described indium nitrate acetylacetone,2,4-pentanedione solution is mixed with described saturated stannic chloride ethanol solution by 8:1 by indium/stannum mol ratio, prepares ITO colloidal sol.
7, the ITO colloidal sol in step 6 is spin-coated to the glass surface of FTO electro-conductive glass, and calcines 30 minutes through 550 C, prepare deposition ITO/ glass/FTO electro-conductive glass.
8, ITO/ glass/FTO electro-conductive glass being dipped in ultrasonic cleaning in deionized water, acetone, ethanol, finally with deionized water rinsing, suck dry moisture also dries.In the described unit for uniform suspension of step (3), put into the clean ITO/ glass/FTO electro-conductive glass of described step 7, use electrophoresis method at ITO side deposited oxide Graphene.The electrophoresis method deposition voltage used is 5V, and the time is 2 hours.
9, the ITO/ glass/FTO electro-conductive glass of the load graphene oxide of step 8 is put into immersion 10 hours in hydrogen iodide, with obtaining loading the ITO/ glass/FTO electrode of Graphene after ethanol purge.
10, deposit electrode in the FTO side of ITO/ glass/FTO electro-conductive glass matrix.Described is the one in platinum, alloy, conducting polymer, carbon, compound to electrode.
11, preparing colloidal tio 2 by sol-gel self-combustion synthesis, be applied to by colloidal tio 2 on FTO electro-conductive glass matrix, controlling thickness is 5～15 m, within 30 minutes, prepares mesoporous titanium dioxide film through 450 ° of C calcinings.
The dyestuff of titanium deoxid film immersion 0.2～0.5 mmol/L 12, step 11 prepared forms dye-sensitized titania light anode.
13, the dye-sensitized titania light anode combination that electrode and step 12 are prepared by the ITO/ glass/FTO of the load Graphene of step 10 preparation, and it is assembled into, at centre injection liquid electrolyte, the DSSC that can generate electricity in the rainy day.Described liquid electrolyte is containing I-/I3 -The acetonitrile solution of oxidation-reduction pair.
Two, can be in the test of the DSSC of rainy day generating
By prepared by the present invention can the rainy day generating DSSC at illumination condition under generating time open-circuit voltage be 650～800 mV, short circuit current be 8～18mA cm-2, fill factor, curve factor be 0.5～0.8, photoelectric transformation efficiency be 5.0～11.0%.
By prepared by the present invention can the rainy day generating DSSC rain under the conditions of generate electricity time electric current be that 0.9～4.9 μ A/ drip rain, voltage is that 30～60 μ V/ drip rain, power is that 30-300pW/ drips rain.
As it is shown in figure 1, the DSSC structural representation that the present invention rainy day generates electricity.During fine day, DSSC one is surveyed and is excited generating.During the rainy day, containing cationes such as sodium ion in rainwater, when simulating raindrop and falling graphenic surface, Graphene can adsorb the cation in simulation raindrop, make due to the migration of cation the electronics in Graphene at graphenic surface displacement, thus produce electric current and voltage.
In Fig. 2, the difference of pressing on the DSSC surface of rainy day generating prepared by the present invention drips speed dropping Simulated rainwater generation electric current, voltage, power signal.Figure a is electric current, and figure b is voltage, and figure c is power output.Different current and voltage signals is produced due to the flow velocity difference of water droplet whereabouts.Syringe flow velocity is adjusted to 40mL h respectively-1、60 mL h-1、80 mL
h-1、100 mL h-1、200 mL h-1、300
mL h-1, test at electrochemical workstation CHI660E.It can be seen that when simulating raindrop and dropping in graphenic surface, in figure a, current signal reduces with the increase of flow velocity, in figure b, voltage signal reduces with the increase of flow velocity, and in figure c, the signal of power reduces with the increase of flow velocity.Figure d represents that deionized water does not has the generation of current/voltage when dropping in graphenic surface, and the signal of this explanation electric current and voltage is owing to the ion in simulation raindrop produces.Figure d can be seen that graphenic surface is not super-hydrophobic.
In Fig. 3 prepared by the present invention can the rainy day generating DSSC press variable concentrations dropping Simulated rainwater generation electric current, voltage, power diagram.Figure a is electric current, and figure b is voltage, and figure c is power output.Use the solution of variable concentrations as simulation raindrop.Can be seen that current signal strengthens with the increase of solution concentration in figure a, figure b can be seen that voltage signal strengthens with the increase of solution concentration, and figure c can be seen that power signal strengthens with the increase of solution concentration.Illustrating that solution concentration is the biggest, the ion that Graphene can adsorb is the most, and the corresponding electric signal of generation is the most obvious.
In Fig. 1: when solar irradiation, the organic dyestuff in light anode absorbs photon and excites electronics, and electronics transmits to FTO electro-conductive glass along the conductive channel that titania nanoparticles forms, through external circuit transmission to electrode；I in electrolyte-The reducing dyes of oxidation state is ground state, simultaneously I by ion-Ion is converted into I3 -Ion also migrates to electrode surface, finally, to electrode by I3 -Ion reduction is I-Ion.When rainfall, being inverted by solaode, raindrop are dropped in graphenic surface and form cation/electronics electric double layer capacitance；Raindrop are electric double layer capacitance charge/discharge in sprawling/shrinking of graphenic surface, thus produce electric current and voltage.
In Fig. 2: simulation raindrop are expelled to Graphene electrodes surface, and as can be seen from Figure, the rate of addition of simulation raindrop is the fastest, and the electric current of generation, voltage, power signal are the most weak.
In Fig. 3: under same speed, the ion concentration of simulation raindrop is the highest, and the electric current of generation, voltage, power signal are the strongest.
Above example is only in order to illustrate technical scheme, rather than is limited；Although the present invention being described in detail with reference to previous embodiment, for the person of ordinary skill of the art, still the technical scheme described in previous embodiment can be modified, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of claimed technical solution of the invention.
Claims (10)
1. one kind can be in the preparation method of DSSC of rainy day generating, it is characterised in that it comprises the following steps:
(1), under condition of ice bath by graphite powder: sodium nitrate: potassium permanganate according to mass ratio be 1～2:1:5～8 dispersion in concentrated sulfuric acid, stirring prepare mixed solution；
(2), remove ice bath, described mixed solution is heated and stirs, add deionized water and hydrogen peroxide until bubble collapse；
(3), again by solution centrifugal and clean to supernatant pH=3～4, being dispersed back in water by the mixture obtained and ultrasonic disperse, centrifugal segregation black residue obtains unit for uniform suspension；
(4), being dissolved in acetylacetone,2,4-pentanedione by indium nitrate, and drip diethanolamine, compound concentration is the indium nitrate acetylacetone,2,4-pentanedione solution of 0.1～0.2mol/L, refluxes, stirs under 60 C～65 C；
(5), stannic chloride is dissolved in ethanol, prepare saturated stannic chloride ethanol solution；
(6), by indium/stannum mol ratio it is 8～12:1 described indium nitrate acetylacetone,2,4-pentanedione solution to be mixed with described saturated stannic chloride ethanol solution, prepares ITO colloidal sol；
(7), the ITO colloidal sol in step (6) is spin-coated to the glass surface of FTO electro-conductive glass, through calcining, prepares deposition ITO/ glass/FTO electro-conductive glass；
(8), in the unit for uniform suspension of step (3), put into the ITO/ glass/FTO electro-conductive glass of step (7), use electrophoresis method at ITO layer deposited oxide Graphene；
(9), by the ITO/ glass/FTO electro-conductive glass of load graphene oxide in step (8) put into and hydrogen iodide soaks reduction in 10～15 hours, obtain loading the ITO/ glass/FTO electrode of Graphene；
(10), deposit electrode on the FTO layer of the ITO/ glass/FTO electrode of the load Graphene in step (9)；
(11), preparing colloidal tio 2, be applied to by colloidal tio 2 on FTO electro-conductive glass matrix, mesoporous titanium dioxide film is prepared in high-temperature calcination；
(12) dyestuff of the titanium deoxid film immersion 0.2～0.5mmol/L, step (11) prepared forms dye-sensitized titania light anode；
(13), ITO/ glass/FTO dye-sensitized titania light anode combination prepared by electrode and step (12) of load Graphene of preparing of described step (10), and inject in centre liquid electrolyte be assembled into described can be at the DSSC of rainy day generating.
The most according to claim 1 can be in the preparation method of DSSC of rainy day generating, it is characterised in that: in described step (2) by described solution by heating in water bath to 30～40 C, and stir 30～40 minutes.
The most according to claim 1 can be in the preparation method of DSSC of rainy day generating, it is characterised in that: in described step (4), diethanolamine adds 1～3.
The most according to claim 1 can be in the preparation method of DSSC of rainy day generating, it is characterised in that: the electrophoresis method deposition voltage used in described step (8) is 5V, and the time is 2 hours.
The most according to claim 1 can be in the preparation method of DSSC of rainy day generating, it is characterised in that: in described step (10) is the one in platinum, alloy, conducting polymer, carbon, compound to electrode.
The most according to claim 1 can be in the preparation method of DSSC of rainy day generating, it is characterised in that: it is 5～15 m that described step (11) controls thickness, within 30 minutes, prepares mesoporous titanium dioxide film through 450 ° of C calcinings.
The most according to claim 1 can be in the preparation method of DSSC of rainy day generating, it is characterised in that: the liquid electrolyte in described step (13) is containing I-/I3 -The acetonitrile solution of oxidation-reduction pair.
8. what the preparation method described in any one of claim 1～7 prepared can be at the DSSC of rainy day generating.
9. the application that can generate electricity under the DSSC of rainy day generating is at illumination condition described in claim 8, it is characterised in that: the open-circuit voltage of described DSSC is 650～800 mV, short circuit current is 8～18mA cm-2, fill factor, curve factor be 0.5～0.8, photoelectric transformation efficiency be 5.0～11.0%.
10. described in claim 8 can be in the application of generating under the conditions of raining of the DSSC of rainy day generating, it is characterised in that: the electric current of described DSSC is that 0.9～4.9 μ A/ drip rain, voltage is that 30～60 μ V/ drip rain, power is 30～300pW/ to drip rain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610339543.5A CN105977032B (en) | 2016-05-23 | 2016-05-23 | A kind of DSSC that can be generated electricity in the rainy day and its preparation method and application |
Applications Claiming Priority (1)
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| CN103199134A (en) * | 2013-03-11 | 2013-07-10 | 辽宁德菲格瑞特新型节能材料有限公司 | Graphene electrode compound solar power generation glass |
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