CN102496478A - Method for improving performance of nanofiber membrane of dye-sensitized battery by synergistic action of carbon nanotubes and titanium tetrachloride - Google Patents

Method for improving performance of nanofiber membrane of dye-sensitized battery by synergistic action of carbon nanotubes and titanium tetrachloride Download PDF

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CN102496478A
CN102496478A CN2011103998285A CN201110399828A CN102496478A CN 102496478 A CN102496478 A CN 102496478A CN 2011103998285 A CN2011103998285 A CN 2011103998285A CN 201110399828 A CN201110399828 A CN 201110399828A CN 102496478 A CN102496478 A CN 102496478A
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titanium tetrachloride
solution
dmf solution
tio
dye
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杜平凡
熊杰
宋立新
席珍强
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Zhejiang Sci Tech University ZSTU
Zhejiang University of Science and Technology ZUST
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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
    • 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

Abstract

The invention discloses a method for improving the performance of a nanofiber membrane of a dye-sensitized battery by synergistic action of carbon nanotubes and titanium tetrachloride. The method comprises the following steps of: 1) doping multi-wall carbon nanotubes in TiO2 precursor spinning solution; and 2) carrying out aftertreatment on a sintered TiO2 nanofiber membrane by using titanium tetrachloride solution. Due to addition of the multi-wall carbon nanotubes, the transmission capability of photoproduction electrons and the strength of the fiber membrane are improved. Due to treatment by the titanium tetrachloride, the absorbing quantity of the membrane for sensitized dyes is increased, the combination of the photoproduction electrons, the oxidation-state dyes and electrolyte is restrained, and the density of the electrons on a TiO2 conduction band is improved. Under the synergistic action of doping of the carbon nanotubes and treatment of the titanium tetrachloride, the performance of the TiO2 nanofiber membrane prepared on the basis of an electrostatic spinning technology is improved, and the total photoelectric conversion efficiency of the dye-sensitized solar battery is improved by 15%-23%.

Description

The collaborative method that improves dye-sensitized cell nanofiber film properties of CNT and titanium tetrachloride
Technical field
The present invention relates to solar cell manufacturing technology field, the collaborative method that improves dye-sensitized cell nanofiber film properties of particularly a kind of CNT and titanium tetrachloride.
Background technology
Along with society, sustainable development of economy, non-renewable energy resources such as oil, coal etc. are exhausted day by day, and human existence and development are being faced with unprecedented challenge.Searching cleaning, regenerative resource have become global problem.It is estimated that the energy that earth every year obtains from solar irradiation is about 100,000 times of human annual energy-output ratio, therefore, the development and use of solar energy are the key subjects of new energy field.The solar cell of based semiconductor silicon pn knot principle is technological at present the most ripe electrooptical device, and in recent years, the paces that the silicon solar cell scale is used are just progressively accelerated.Yet expensive still is the reality that can't avoid of photovoltaic generation.For this reason, the effort of development of new photovoltaic device does not stop all the time in the global range.
Last century Mo, along with the rise of nanometer technology, one type of novel solar cell is that dye-sensitized solar cells (DSSC) arises at the historic moment.1991, Gr tzel reported first be the semiconductor nano thin film solar cell of sensitizer with the ruthenium complex dyestuff, its photoelectric conversion efficiency is higher than 7%, causes scientific circles' extensive concern, is regarded as third generation solar cell.Make great efforts after deliberation, the high conversion efficiency of small size DSSC has reached 11%, and with being on close level of amorphous silicon membrane battery, and cost is less than 1/5 of silion cell.Rely on tangible cost advantage and easy manufacture craft, DSSC or will in following photovoltaic industry development, become the strong competitor of silion cell, application potential is huge.
DSSC is made up of electrode nano structure membrane light anode, FTO electro-conductive glass matrix, sensitizing dyestuff, electrolyte and platinum plating.Its operation principle is following: sensitizing dyestuff absorbs luminous energy, electronics by ground state transition to excitation state; The last anode film of FTO is accepted the excitation state electronics as electron acceptor, and simultaneously, dye molecule loses electronics and is oxidation state; I -/ I 3 -I in the electrolyte -Electronics is provided and with its reducing/regenerating as electron donor to the oxidation state dye molecule, I 3 -Be diffused into and electrode is obtained electronics be reduced, thereby accomplish the Optical Electro-Chemistry reaction cycle.
Wherein, photo-anode film is core and the primary study object of DSSC, and its effect is that the dye molecule electrons excited is received and transmits.Conventional photo-anode film is usually with titanium dioxide (TiO 2) nanocrystalline be raw material.Nearly 20 years, a large amount of researchers carried out continuing deep research to nanocrystalline photo-anode film, had formed ripe relatively Experiment Preparation technology gradually.But this photo-anode film also exists some inherent shortcomings; Reason is that a large amount of crystal boundaries is arranged between nanocrystal; Specific area is huge, and surperficial dangling bonds play the trap effect of capturing light induced electron, and they can make the life-span of electronics and diffusion length reduce; Recombination probability increases, and is restricting the raising of battery efficiency.
The novel nano structure will be the important directions of DSSC photo-anode film research.If replace nanocrystalline with one-dimensional nano structures such as nano wire, nanometer rods, nanotubes; Because their crystal boundary is less, can effectively reduce wherein surface state trap to the capturing of light induced electron, suppress charge recombination; Accelerate collection, the transmission rate of electronics, and then improve the performance of battery.Except that one-dimensional nano structure, the accurate one dimension TiO that makes by electrostatic spinning 2Nano fibrous membrane also begins to be used for DSSC light anode in recent years.In theory, this photo-anode film will be obtained and the similar effect of above-mentioned one-dimensional nano structure film.Related work mainly concentrates on the S. Ramakrishna of Singapore, several groups such as S. Shiratori of the D.Y. Kim of Korea S and Japan.Normally with TiO 2Precursor solution spin nano fibrous membrane directly be deposited on the FTO matrix, form the light anode through sintering.
It is the important channel of further improving the DSSC performance that the nanostructure photo-anode film is carried out physical and chemical modified, mainly comprises methods such as doping, chemical treatment, surface coating.
Summary of the invention
The purpose of this invention is to provide the collaborative method that improves dye-sensitized cell nanofiber film properties of a kind of CNT and titanium tetrachloride.
The technical scheme that the present invention adopts, promptly this preparation method's step is following:
1) preparing PVA c (polyvinyl acetate) quality percentage composition is the DMF (N of 15wt.%; Dinethylformamide) solution; With volume is the surfactant Triton X-100 (TritonX) of DMF solution 25%; Volume is the HAc (glacial acetic acid) of DMF solution 12.5%, and 2 times of TiP to PVAc of quality (isopropyl titanate) join in the DMF solution; Obtain TiO through magnetic agitation 8h 2Presoma spin coating liquid, and it is spin-coated on the FTO electro-conductive glass spin-coated layer that forms one deck with the spin coating appearance, spin coating appearance rotating speed is 2000rmin -1, the spin coating time is 30s;
2) preparing PVA c quality percentage composition is the DMF solution of 11.5wt.%, is the surfactant Triton X-100 of DMF solution 15% with volume, and volume is the HAc of DMF solution 10%, and 2 times of TiP to PVAc of quality join in the DMF solution; Subsequently, be that 0.1% ~ 1% the MWCNTs (multi-walled carbon nano-tubes) of TiP also joins in the DMF solution with molar content, magnetic agitation 8h obtains TiO 2The presoma spinning solution, and ultrasonic 2h guarantees the even dispersion of MWCNTs in solution; The presoma spinning solution is encased in the syringe that has spinning head, between spinning head and receiving system, adds high voltage, charged drop overcomes self under effect of electric field surface tension forms the injection thread, by micro-injection pump control rate of extrusion; Along with solvent evaporates, spray thread and solidify to form the PVAc/TiP composite fibre, directly be collected on the FTO of spin-coat process electro-conductive glass with disordered state and form tunica fibrosa, the FTO electro-conductive glass is fixed by receiving system;
3) (film thickness behind the corresponding sintering is about 10 μ m, the i.e. effective thickness of photo-anode film) behind the spinning 30min is with putting into the Muffle furnace sintering after the tunica fibrosa drying of collecting, with 1 °Cmin -1Speed be warming up to 480 °Be incubated 1h behind the C, obtain TiO 2Nano fibrous membrane;
4) with the TiO that makes 2Nano fibrous membrane is with 75 °The TiCl of C 4(titanium tetrachloride) aqueous solution is handled, TiCl 4The molar concentration of the aqueous solution is 0.05 ~ 0.15M, and the processing time is 25min, takes out the back 480 °C continues sintering 45min down.
With TiO 2Nano fibrous membrane and handle through carbon nano tube-doped and titanium tetrachloride after TiO 2Nano fibrous membrane assembling dye-sensitized solar cells (DSSC), and the photoelectric properties of control cell, test mainly comprises I-VCharacteristic curve and photoelectric current action spectrum. I-VThe curve test macro is made up of the xenon lamp of simulated solar light source, digital source table etc.Through I-VCurve, can obtain battery open circuit voltage ( V Oc ), short circuit current ( I Sc ), fill factor, curve factor ( FF) and conversion efficiency ( η) four parameters, wherein, conversion efficiency ηBe the basic parameter of estimating the solar cell performance, be defined as the battery peak power output ( P Max ) and input power ( P In ) ratio, can calculate through following formula: η= P Max / P In =( FF * I Sc * V Oc )/ P In The photoelectric current action spectrum is the relation curve between IPCE and the lambda1-wavelength, measures through the QE/IPCE measuring system.So-called IPCE is the monochromatic photon of incident-electronics transformation efficiency, is defined as the light induced electron number that produces in the unit interval NeWith incident monochromatic light subnumber NpRatio, the photoelectricity that is battery at the different wave length place of reflection transforms situation, also is to influence short circuit current I Sc The most critical factor.IPCE can be expressed as the product of three factors, i.e. IPCE (λ)= LHE (λ) * Φ Inj * Φ c , wherein LHE (λ)The capture rate of expression light, Φ Inj The injection efficiency of expression electronics, Φ c It then is the collection efficiency of electronics.
The beneficial effect that the present invention has is:
1) because MWCNTs has good electrical conductivity, its adding has increased light induced electron at TiO 2Transmittability in the nanofiber makes it arrive the FTO matrix more quickly.Simultaneously, the adding of MWCNTs has improved the photoresponse of nano fibrous membrane in visible-range to a certain extent, has improved the capture rate of light LHE (λ)These two factors all help to improve the density of photocurrent and the short circuit current of battery I Sc , and then the conversion efficiency of raising battery ηAnd, be dispersed in the intensity that MWCNTs in the nanofiber has also improved photo-anode film, help the stable of device.
2) use TiCl 4The tunica fibrosa of solution after to sintering carries out reprocessing, TiCl 4Will be on original nanofiber after the hydrolysis epitaxial growth one deck TiO 2Thin layer or generate some little TiO 2Crystal grain has increased the electricity contact between nanofiber, and the nanofiber that part ftractures because of sintering is played the certain repairing effect.Simultaneously, make the nanofiber surface that certain structure again takes place after the processing, increased the bond strength of sensitizing dyestuff and film, help electronics and inject conduction band, promptly improved injection efficiency Φ Inj Though the generation of thin layer and little crystal grain has reduced the specific area of film, because the increase of total weight, the actual surface area of film goes up not down.And the increase of surface area will make the also corresponding increase of the adsorbance of dyestuff, and then in the unit interval, produce more light induced electron number Ne, promptly improved LHE (λ)And, TiCl 4Handle and also reduced TiO 2Surface state quantity in the nanofiber has played the effect at these light induced electron trap centers of passivation, has suppressed electron acceptor I in electronics and oxidation state sensitizing dyestuff and the electrolyte 3 -Between compound, make on the conduction band electron density promptly Φ Inj Corresponding increase, and then improve battery efficiency.
Summarize saidly, mix and TiCl at MWCNTs 4Under the synergy of handling, the IPCE of battery and conversion efficiency ηAll be significantly improved.
Description of drawings
Fig. 1 is the sketch map of electrostatic spinning process.Among the figure: 1, spinning solution, 2, spinning head, 3, syringe, 4, high voltage source, 5, micro-injection pump, 6, composite fibre, 7, the FTO electro-conductive glass, 8, tunica fibrosa, 9, receiving system.
Fig. 2 left-half is MWCNTs doped Ti O 2The Raman of nano fibrous membrane (Raman) spectrum; Fig. 2 right half part is TEM (transmission electron microscope) photo of PVAc/TiP composite fibre before the sintering, among the figure: 1, TiO 2Nanofiber, 2, multi-walled carbon nano-tubes.
Fig. 3 is the IPCE photoelectric current action spectrum contrast of the DSSC of assembling among the embodiment 1.
Fig. 4 is the DSSC of assembling among the embodiment 1 I-VThe characteristic curve contrast.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Embodiment 1:
0.68g PVAc joined in the 4ml DMF organic solvent to form the quality percentage composition be the solution of 15wt.%, in this solution, add 1ml Triton X-100,0.5ml HAc, and 1.36g TiP; Obtain the TiO of clarification, thickness through magnetic agitation 8h 2Presoma spin coating liquid, and it is spin-coated on the FTO electro-conductive glass of acetone and absolute ethyl alcohol ultrasonic cleaning the spin-coated layer that forms one deck with the spin coating appearance, spin coating appearance rotating speed is 2000rmin -1, the spin coating time is 30s.
0.52g PVAc joined among the 4ml DMF to form the quality percentage composition be the solution of 11.5wt.%, in this solution, add 0.6 ml Triton X-100,0.4ml HAc, and 1.04g TiP.Subsequently, be that 0.1% the MWCNTs of TiP also joins in the DMF solution with molar content.Magnetic agitation 8h obtains TiO 2 Presoma spinning solution 1, and ultrasonic 2h guarantees the even dispersion of MWCNTs in solution; Presoma spinning solution 1 is encased in the syringe 3 that has spinning head 2; The high voltage 4 that adds 16KV at spinning head 2 and 9 of receiving systems; Spinning head 2 is 12cm to the distance of receiving system 9; Charged drop overcomes self under effect of electric field surface tension forms the injection thread, by micro-injection pump 5 control rates of extrusion; Along with solvent evaporates, spray thread and solidify to form PVAc/TiP composite fibre 6, directly be collected in disordered state and on the FTO of spin-coat process electro-conductive glass 7, form tunica fibrosa 8, FTO electro-conductive glass 7 is fixing, as shown in Figure 1 by receiving system 9; Behind the spinning 30min, with putting into the Muffle furnace sintering after PVAc/TiP composite cellulosic membrane 6 dryings of collecting, with 1 °Cmin -1Speed be warming up to 480 °Be incubated 1h behind the C, obtain TiO 2Nano fibrous membrane; With the TiO that makes 2Nano fibrous membrane uses the TiCl of molar concentration as 0.05M 4The aqueous solution 75 °C handles 25min down, takes out the back 480 °C continues sintering 45min down.
With the TiO that makes 2Nano fibrous membrane light anode, N719 sensitizing dyestuff, I -/ I 3 -Standard electrolyte and plating Pt carry out relevant characterization and performance test to electrode assembled battery, and the performance difference of comparison process front and back battery.Fig. 2 left-half is the TiO after MWCNTs mixes 2The Raman spectrum of nano fibrous membrane, 397cm -1, 516cm -1And 639cm -1The place is TiO 2Three absworption peaks, 1329cm -1, 1606cm -1The place then corresponding to characteristic D peak and the G peak of MWCNTs, confirms at TiO 2The MWCNTs composition is arranged in the nano fibrous membrane.Fig. 2 right half part is the TEM photo of PVAc/TiP composite fibre before the sintering, and multi-walled carbon nano-tubes 2 is high-visible in fiber 1 among the figure; Fig. 3 is the contrast of the photoelectric current action spectrum of the DSSC of assembling among the embodiment 1.IPCE after the processing is higher than untreated, especially in the visible-range of 400 ~ 700nm; Fig. 4 is the DSSC of assembling among the embodiment 1 I-VThe characteristic curve contrast.Before handling V Oc =0.69V, I Sc =10.2mAcm -2, FF=55%, η=3.9%.And after handling V Oc =0.70V, I Sc =10.6mAcm -2, FF=60%, η=4.5%.Wherein, the photoelectric conversion efficiency of most critical ηBring up to 4.5% from 3.9%, improved 15%.
Embodiment 2:
0.68g PVAc joined in the 4ml DMF organic solvent to form the quality percentage composition be the solution of 15wt.%, in this solution, add 1ml Triton X-100,0.5ml HAc, and 1.36g TiP; Obtain the TiO of clarification, thickness through magnetic agitation 8h 2Presoma spin coating liquid, and it is spin-coated on the FTO electro-conductive glass of acetone and absolute ethyl alcohol ultrasonic cleaning the spin-coated layer that forms one deck with the spin coating appearance, spin coating appearance rotating speed is 2000rmin -1, the spin coating time is 30s.
0.52g PVAc joined among the 4ml DMF to form the quality percentage composition be the solution of 11.5wt.%, in this solution, add 0.6 ml Triton X-100,0.4ml HAc, and 1.04g TiP.Subsequently, be that 0.5% the MWCNTs of TiP also joins in the DMF solution with molar content.Magnetic agitation 8h obtains TiO 2 Presoma spinning solution 1, and ultrasonic 2h guarantees the even dispersion of MWCNTs in solution; Presoma spinning solution 1 is encased in the syringe 3 that has spinning head 2; The high voltage 4 that adds 16KV at spinning head 2 and 9 of receiving systems; Spinning head 2 is 12cm to the distance of receiving system 9; Charged drop overcomes self under effect of electric field surface tension forms the injection thread, by micro-injection pump 5 control rates of extrusion; Along with solvent evaporates, spray thread and solidify to form PVAc/TiP composite fibre 6, directly be collected in disordered state and on the FTO of spin-coat process electro-conductive glass 7, form tunica fibrosa 8, FTO electro-conductive glass 7 is fixing, as shown in Figure 1 by receiving system 9; Behind the spinning 30min, with putting into the Muffle furnace sintering after PVAc/TiP composite cellulosic membrane 6 dryings of collecting, with 1 °Cmin -1Speed be warming up to 480 °Be incubated 1h behind the C, obtain TiO 2Nano fibrous membrane; With the TiO that makes 2Nano fibrous membrane uses the TiCl of molar concentration as 0.1M 4The aqueous solution 75 °C handles 25min down, takes out the back 480 °C continues sintering 45min down.
With the TiO that makes 2Nano fibrous membrane light anode, N719 sensitizing dyestuff, I -/ I 3 -Standard electrolyte and plating Pt carry out relevant characterization and performance test to electrode assembled battery, and the performance difference of comparison process front and back battery.Characterize, close among the process of performance test and result and the embodiment 1, related data and picture are unlisted.Wherein, the photoelectric conversion efficiency of most critical ηRaising brings up to 4.8% from 3.9%, has improved 23%.
Embodiment 3:
0.68g PVAc joined in the 4ml DMF organic solvent to form the quality percentage composition be the solution of 15wt.%, in this solution, add 1ml Triton X-100,0.5ml HAc, and 1.36g TiP; Obtain the TiO of clarification, thickness through magnetic agitation 8h 2Presoma spin coating liquid, and it is spin-coated on the FTO electro-conductive glass of acetone and absolute ethyl alcohol ultrasonic cleaning the spin-coated layer that forms one deck with the spin coating appearance, spin coating appearance rotating speed is 2000rmin -1, the spin coating time is 30s.
0.52g PVAc joined among the 4ml DMF to form the quality percentage composition be the solution of 11.5wt.%, in this solution, add 0.6 ml Triton X-100,0.4ml HAc, and 1.04g TiP.Subsequently, be that 1% the MWCNTs of TiP also joins in the DMF solution with molar content.Magnetic agitation 8h obtains TiO 2 Presoma spinning solution 1, and ultrasonic 2h guarantees the even dispersion of MWCNTs in solution; Presoma spinning solution 1 is encased in the syringe 3 that has spinning head 2; The high voltage 4 that adds 16KV at spinning head 2 and 9 of receiving systems; Spinning head 2 is 12cm to the distance of receiving system 9; Charged drop overcomes self under effect of electric field surface tension forms the injection thread, by micro-injection pump 5 control rates of extrusion; Along with solvent evaporates, spray thread and solidify to form PVAc/TiP composite fibre 6, directly be collected in disordered state and on the FTO of spin-coat process electro-conductive glass 7, form tunica fibrosa 8, FTO electro-conductive glass 7 is fixing, as shown in Figure 1 by receiving system 9; Behind the spinning 30min, with putting into the Muffle furnace sintering after PVAc/TiP composite cellulosic membrane 6 dryings of collecting, with 1 °Cmin -1Speed be warming up to 480 °Be incubated 1h behind the C, obtain TiO 2Nano fibrous membrane; With the TiO that makes 2Nano fibrous membrane uses the TiCl of molar concentration as 0.15M 4The aqueous solution 75 °C handles 25min down, takes out the back 480 °C continues sintering 45min down.
With the TiO that makes 2Nano fibrous membrane light anode, N719 sensitizing dyestuff, I -/ I 3 -Standard electrolyte and plating Pt carry out relevant characterization and performance test to electrode assembled battery, and the performance difference of comparison process front and back battery.Characterize, close among the process of performance test and result and the embodiment 1, related data and picture are unlisted.Wherein, the photoelectric conversion efficiency of most critical improves ηBring up to 4.65% from 3.9%, improved 19%.

Claims (4)

1. the collaborative method that improves dye-sensitized cell nanofiber film properties of CNT and titanium tetrachloride is characterized in that the step of this method is following:
1) preparing PVA c quality percentage composition is the DMF solution of 15wt.%, is the surfactant Triton X-100 of DMF solution 25% with volume, and volume is the HAc of DMF solution 12.5%, and 2 times of TiP to PVAc of quality join in the DMF solution; Obtain TiO through magnetic agitation 8h 2Presoma spin coating liquid, and it is spin-coated on the FTO electro-conductive glass spin-coated layer that forms one deck with the spin coating appearance;
2) preparing PVA c quality percentage composition is the DMF solution of 11.5wt.%, is the surfactant Triton X-100 of DMF solution 15% with volume, and volume is the HAc of DMF solution 10%, and 2 times of TiP to PVAc of quality join in the DMF solution; Subsequently, be that 0.1% ~ 1% the MWCNTs of TiP also joins in the DMF solution with molar content, magnetic agitation 8h obtains TiO 2Presoma spinning solution (1), and ultrasonic 2h guarantees the even dispersion of MWCNTs in solution; Presoma spinning solution (1) is encased in the syringe (3) that has spinning head (2); Between spinning head (2) and receiving system (9), add high voltage (4); Charged drop overcomes self under effect of electric field surface tension forms the injection thread, by micro-injection pump (5) control rate of extrusion; Along with solvent evaporates, spray thread and solidify to form PVAc/TiP composite fibre (6), directly be collected in through the FTO of spin-coat process electro-conductive glass (7) with disordered state and go up formation tunica fibrosa (8), FTO electro-conductive glass (7) is fixing by receiving system (9);
3) behind the spinning 30min, with putting into the Muffle furnace sintering after the tunica fibrosa of collecting (8) drying, with 1 °Cmin -1Speed be warming up to 480 °Be incubated 1h behind the C, obtain TiO 2Nano fibrous membrane;
4) with the TiO that makes 2Nano fibrous membrane is with 75 °The TiCl of C 4The aqueous solution is handled.
2. the collaborative method that improves dye-sensitized cell nanofiber film properties of a kind of CNT according to claim 1 and titanium tetrachloride, it is characterized in that: the spin coating appearance rotating speed that adopts in the said step 1) is 2000rmin -1, the spin coating time is 30s.
3. the collaborative method that improves dye-sensitized cell nanofiber film properties of a kind of CNT according to claim 1 and titanium tetrachloride is characterized in that: the TiCl that adopts in the said step 4) 4The molar concentration of the aqueous solution is 0.05 ~ 0.15M, and the processing time is 25min, takes out the back 480 °C continues sintering 45min down.
4. the collaborative method that improves dye-sensitized cell nanofiber film properties of a kind of CNT according to claim 1 and titanium tetrachloride is characterized in that: the photoelectric conversion efficiency of being handled the DSSC of the nano fibrous membrane assembling under the synergy by carbon nano tube-doped and titanium tetrachloride ηObtained 15% ~ 23% raising.
CN2011103998285A 2011-12-06 2011-12-06 Method for improving performance of nanofiber membrane of dye-sensitized battery by synergistic action of carbon nanotubes and titanium tetrachloride Pending CN102496478A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102832051A (en) * 2012-10-07 2012-12-19 复旦大学 Preparation method for photoanode of dye-sensitized solar battery
CN109103339A (en) * 2018-08-16 2018-12-28 深圳市前海首尔科技有限公司 A kind of preparation method of perovskite solar battery
CN110052263A (en) * 2019-04-30 2019-07-26 广东工业大学 A kind of photocatalytic nanometer fibrous material and its preparation method and application

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CN101546655A (en) * 2009-01-15 2009-09-30 湘潭大学 Quasi-solid dye sensitized flexible solar cell battery and its preparation method
CN102153138A (en) * 2010-11-02 2011-08-17 中山大学 Graded titanium dioxide microspheres consisting of nano rods and nano granules
CN102186643A (en) * 2008-08-21 2011-09-14 因诺瓦动力学股份有限公司 Enhanced surfaces, coatings, and related methods

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Publication number Priority date Publication date Assignee Title
CN102186643A (en) * 2008-08-21 2011-09-14 因诺瓦动力学股份有限公司 Enhanced surfaces, coatings, and related methods
CN101546655A (en) * 2009-01-15 2009-09-30 湘潭大学 Quasi-solid dye sensitized flexible solar cell battery and its preparation method
CN102153138A (en) * 2010-11-02 2011-08-17 中山大学 Graded titanium dioxide microspheres consisting of nano rods and nano granules

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102832051A (en) * 2012-10-07 2012-12-19 复旦大学 Preparation method for photoanode of dye-sensitized solar battery
CN102832051B (en) * 2012-10-07 2015-10-28 复旦大学 A kind of preparation method of dye-sensitized solar cell anode
CN109103339A (en) * 2018-08-16 2018-12-28 深圳市前海首尔科技有限公司 A kind of preparation method of perovskite solar battery
CN110052263A (en) * 2019-04-30 2019-07-26 广东工业大学 A kind of photocatalytic nanometer fibrous material and its preparation method and application

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