CN102347138A - Electrolyte composite for dye sensitization solar battery and solar battery using same - Google Patents
Electrolyte composite for dye sensitization solar battery and solar battery using same Download PDFInfo
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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
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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
- Y02E10/549—Organic PV cells
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Abstract
The invention discloses an electrolyte composite for a dye sensitization solar battery, which comprises organic amine hydriodate, imidazolium, iodine, Guanidine Thiocyanate, a benzimidazole derivate, a pyridine derivate or a mixture thereof and a solvent. The invention provides the dye sensitization solar battery, which comprises a photoanode, a cathode and a layer formed by the electrolyte composite disclosed by the invention, wherein the layer is formed on the surface of the cathode, which is contacted with the photoanode. The dye sensitization solar battery prepared from the electrolyte composite disclosed by the invention has the advantages that a photoelectric conversion property is excellent; moreover, all components of the electrolyte composite are high in compatibility; the electrolyte composite is not easy to dry up; and the stable photoelectric conversion efficiency is provided.
Description
Technical field
The present invention relates to a kind of electrolyte composition, particularly a kind of DSSC (Dye-Sensitized Solar Cell, electrolyte composition DSC) of being applicable to.The invention still further relates to the DSSC that uses this electrolyte composition.
Background technology
Along with Development of Human Civilization, the whole world faces problems such as serious energy crisis and environmental pollution.Wherein, can solar energy directly be transformed into the solar cell of electric energy, as solving whole world energy crisis and reducing one of important method of environmental pollution.In solar cell, because of the low cost of manufacture of DSSC, can be made into large tracts of land, tool pliability, tool light transmission and can be used for the first-class excellent specific property of building, become a kind of promising novel solar battery that has gradually.
In recent years; People such as
delivers a series of DSSC pertinent literatures (O ' Regan for example, B.;
M.Nature 1991; 353; 737), show that DSSC has practicality.Generally speaking, the structure of DSSC comprises the moon/positive electrode, nano titanium oxide, dye well electrolyte, and wherein, electrolyte has critical influence to battery efficiency.In DSSC, characteristics such as not volatile, difficult leakage that desirable electrolyte must possess, easy encapsulation, other compositions of survivable dye well.
Liquid electrolyte is that at present the electrolyte that photoelectric conversion efficiency is higher is known by institute, generally speaking, its have volatile, be prone to leak shortcomings such as reaching difficult encapsulation.In order to address the above problem, people have attempted many methods, for example ionic liquid (N.Papageorgiou et al., J.Electrochem.Soc, 1996,143,3099); The colloidal electrolyte of forming by polymer and organic dissolving salt (U.S.Pat.No.6245847).
Because the electrolyte in the DSSC has critical influence to battery efficiency.Therefore, how to improve efficiency of dye-sensitized solar battery, desired most ardently the problem of solution for the solar cell industry through electrolyte.
Summary of the invention
Reflect this, the present invention provides an electrolyte for dye-sensitized solar cell composition, comprising:
(a) organic amine hydriodate, percentage by weight are 2 to 25%;
(b) imidazole salts, percentage by weight are 2 to 25%;
(c) iodine, percentage by weight are 0.5 to 5%;
(d) guanidine thiocyanate (Guanidine thiocyanate, GuNCS), percentage by weight is 1 to 5%;
(e) benzimidizole derivatives, pyridine derivate or its mixture, percentage by weight is 2 to 15%; And
(f) solvent, percentage by weight are 50 to 92.5%.
Preferably, the percentage by weight of component (a) is 5 to 20%; The percentage by weight of component (b) is 2 to 20%; The percentage by weight of component (c) is 0.5 to 3%; The percentage by weight of component (d) is 1 to 3%; The percentage by weight 5 to 10% of component (e); And the percentage by weight 60 to 86.5% of component (f).Most preferred, the percentage by weight of component (a) is 15.1%; The percentage by weight of component (b) is 2.3%; The percentage by weight of component (c) is 1.3%; The percentage by weight of component (d) is 1.2%; The percentage by weight 8.7% of component (e); And the percentage by weight 71.4% of component (f).
In one specific embodiment; (a) the organic amine hydriodate can be hydroiodic acid triethylamine (Triethylamine hydroiodide; THI), hydroiodic acid tripropyl amine (TPA) (Tripropylamine hydriodide), hydroiodic acid tri-n-butylamine (Tributylamine hydriodide), hydroiodic acid triamylamine (Tripentylamine hydriodide), hydroiodic acid trihexylamine (Trihexylamine hydriodide) or its mixture; Particularly, mixture refers to can comprise in the electrolyte composition of the present invention two or more aforementioned organic amine hydriodates.In addition, preferred (a) organic amine hydriodate is hydroiodic acid triethylamine, hydroiodic acid tripropyl amine (TPA) or hydroiodic acid tri-n-butylamine, or its mixture.Most preferred organic amine hydriodate is the triethylamine hydriodate.
Said components (b) imidazole salts can be 1-methyl-3-propyl group iodate imidazoles (1-Methyl-3-propylimidazolium iodide; PMII), 1; 3-dimethyl iodate imidazoles (1; 3-Dimethylimidazolium iodide), 1-methyl-3-ethyl iodate imidazoles (1-Methyl-3-ethylimidazolium iodide), 1-methyl-3-butyl iodate imidazoles (1-Methyl-3-butylimidazolium iodide), 1-methyl-3-amyl group iodate imidazoles (1-Methyl-3-pentyl-imidazolium iodide), 1-methyl-3-hexyl iodate imidazoles (1-Methyl-3-hexylimidazolium iodide), 1-methyl-3-heptyl iodate imidazoles (1-Methyl-3-heptylimidazolium iodide), 1-methyl-3-octyl group iodate imidazoles (1-Methyl-3-octylimidazolium iodide), 1; 3-diethyl iodate imidazoles (1; 3-Diethylimidazolium iodide), 1-ethyl-3-propyl group iodate imidazoles (1-Ethyl-3-propylimidazolium iodide), 1-ethyl-3-butyl iodate imidazoles (1-Ethyl-3-butylimidazolium iodide), 1; 3-dipropyl iodate imidazoles (1,3-dipropylimidazolium iodide), 1-propyl group-3-butyl iodate imidazoles (1-Propyl-3-butylimidazolium iodide) or its mixture.And with 1-methyl-3-propyl group iodate imidazoles, 1-methyl-3-ethyl iodate imidazoles, 1-methyl-3-butyl iodate imidazoles, 1-methyl-3-amyl group iodate imidazoles, 1-methyl-3-hexyl iodate imidazoles, 1; 3-diethyl iodate imidazoles, 1-ethyl-3-propyl group iodate imidazoles, 1-ethyl-3-butyl iodate imidazoles, 1,3-dipropyl iodate imidazoles, 1-propyl group-3-butyl iodate imidazoles or its mixture are preferred; Preferred imidazole salts then is 1-methyl-3-propyl group iodate imidazoles, 1-methyl-3-ethyl iodate imidazoles, 1-methyl-3-butyl iodate imidazoles, 1-methyl-3-amyl group iodate imidazoles, 1-methyl-3-hexyl iodate imidazoles, 1,3-diethyl iodate imidazoles, 1-ethyl-3-propyl group iodate imidazoles, 1-ethyl-3-butyl iodate imidazoles or its mixture; Most preferably; Then can be selected from 1-methyl-3-propyl group iodate imidazoles, 1-methyl-3-ethyl iodate imidazoles, 1-methyl-3-butyl iodate imidazoles, 1-methyl-3-amyl group iodate imidazoles, 1,3-diethyl iodate imidazoles, 1-ethyl-3-propyl group iodate imidazoles or its mixture.
In the specific embodiment of the present invention; (e) benzimidizole derivatives, pyridine derivate or its mixture can be N-tolimidazole (N-Methylbenzimidazole; NMBI), N-butyl benzimidazole (N-Butylbenzimidazole; NBB), tert .-butylpyridine (4-tert-Butylpyridine, 4-TBP) or its mixture.
In the specific embodiment of the present invention; Employed solvent comprise acetonitrile (Acetonitrile, ACN), the 3-methoxypropionitrile (3-Methoxyl-propionitrile, 3-MPN), N-methyl arsenic noise made in coughing or vomiting alkane ketone (N-Methyl-2-pyrrolidone; NMP), gamma-butyrolacton (gamma-Butyrolactone; GBL), propene carbonate (Propylene carbonate, PC), ethylene carbonate (Ethylene carbonate, EC) or its mixture.On the other hand, the present invention also provides a kind of DSSC that contains electrolyte composition of the present invention.DSSC of the present invention comprises: the photo cathode (photoanode) that contains dye composition; Negative electrode (cathode); And use electrolyte composition of the present invention and dielectric substrate (electrolyte layer) between photo cathode and negative electrode.Particularly, this dielectric substrate is formed on this negative electrode and the surface that this photo cathode contacts.
In the DSSC of the present invention; Photo cathode comprises: substrate, porous semiconductor film, be formed at conducting film and dye composition between this substrate and the porous semiconductor film; This dye composition is arranged on the conducting film and is filled in the hole of porous semiconductor film, and this dielectric substrate is formed between this negative electrode and the porous semiconductor film.Transparent base material in the practical application, generally use transparent substrate and transparent conducting film, and the material of transparency carrier do not have special restriction, so long as all can use.Preferably, the transparent base of the material of transparency carrier for having good barrier property, solvent resistance, weatherability etc. for moisture or gas by the outside intrusion of DSSC.The limiting examples of transparency carrier comprises: the prepared substrates of transparent inorganic material such as quartz, glass; PET (PET), gather (naphthalenedicarboxylic acid second diester) (PEN), Merlon (PC), polyethylene (PE), polypropylene (PP), polyimides perspex substrates such as (PI).In addition, the thickness of transparency carrier does not have special restriction, can according to light transmittance, DSSC characteristic requirements and freely selects.Preferably, the material of transparency carrier is a glass.
In addition, in the DSSC of the present invention, the material of conducting film can be tin oxide (FTO), zinc oxide-gallic oxide (znO-Ga of tin indium oxide (ITO), fluorine doping
2O
3), zinc oxide-alundum (Al (ZnO-Al
2O
3) or be the oxide material on basis with tin.
Moreover in the DSSC of the present invention, the porous semiconductor film can use semiconductive particles to process.Suitable semiconductive particles can comprise: silicon, titanium dioxide, tin ash, zinc oxide, tungstic acid, niobium pentaoxide, titanium oxide strontium and combination thereof.Preferred semiconductive particles is a titanium dioxide.Usually, the average grain diameter of semiconductive particles is 5 to 500 nanometers, preferred 10 to 50 nanometers.The thickness of porous semiconductor film is 5 to 25 microns.
In addition, do not have special restriction, can comprise any conductive material that has as the material of DSSC negative electrode.Perhaps, cathode material can be an insulating substrate also, as long as there is conducting shell to be formed on the substrate surface of photo cathode.Usually, the material of electrochemical stability just can be used as negative electrode, and is applicable to that the unrestricted instance of cathode material comprises platinum, gold, carbon and homologue thereof.
The present invention provides a kind of novel electrolyte composition, is applicable to DSSC.Because electrolyte composition of the present invention has good photoelectric conversion efficiency and long-acting stability, make and utilize the DSSC of electrolyte composition made of the present invention to have excellent photoelectric character.
Embodiment
Below through particular specific embodiment execution mode of the present invention is described, the those of ordinary skill in the affiliated technical field can be understood effect of the present invention and characteristics easily by the content that this specification disclosed.
For obtaining electrolyte for dye-sensitized solar cell composition of the present invention; Can be with the organic amine hydriodate (like THI, TEAI ... Deng) with the iodate imidazoles (like PMII, EMII ... Deng) mix after; Add benzimidazole compound and guanidine thiocyanate, be mixed with the electrolytic liquid of debita spissitudo again with solvent.
The manufacturing approach of DSSC of the present invention does not have special restriction, available general known method manufacturing.The porous semiconductor film that the present invention uses is only processed with semiconductive particles.Suitable semiconductive particles comprises silicon, titanium dioxide, tin ash, zinc oxide, tungstic acid, niobium pentaoxide, titanium oxide strontium and combination thereof.Therefore, in the making of photo cathode, earlier semiconductive particles is mixed with pastel, it is applied on the transparent conductive substrate again, coating process can be used blade coating machine, wire mark, rotary coating, sprinkling etc. or general wet type coating.In addition, in order to obtain suitable thickness, can be coated with one or many.Semiconductor film can be single or multiple lift, and multilayer is meant the semiconductive particles of each layer use different-grain diameter.For example, can be coated with the semiconductive particles that particle diameter is 5 to 50 nanometers earlier, coating thickness is 5 to 20 microns, and then the coating particle diameter be the semiconductive particles of 200 to 400 nanometers, coating thickness is 3 to 5 microns.Then, after 50 to 100 ℃ of dryings, in 400 to 500 ℃ of sintering can make a multi-lager semiconductor rete in about 30 minutes again.
As for being arranged on the conducting film and being filled in the dye composition in the porous semiconductor membrane pores, for example the N-719 dyestuff can be dissolved in earlier and be mixed with dye solution in the appropriate solvent.Appropriate solvent comprises acetonitrile, methyl alcohol, ethanol, propyl alcohol, butanols, dimethyl formamide, N-methyl pyrrolidone or its mixture, but not as limit.Then, the transparency carrier that is coated with the porous semiconductor film is dipped in the dye solution, lets dyestuff in the abundant absorbing dye solution of this porous semiconductor film, can make the photo cathode of DSSC after the drying.
One concrete manufacture of DSSC of the present invention is following.At first, will comprise having the pastel that particle diameter is the titanium oxide microparticle of 20 to 30 nanometers, through once or wire mark for several times be coated on the glass plate that is coated with the tin oxide (FTO) that fluorine mixes, then 450 ℃ of sintering 30 minutes.
Dye composition is dissolved in 1: 1 acetonitrile of volume ratio, and (acetonitrile ACN) and in the mixed liquor of the tert-butyl alcohol (t-butanol), is made into dye solution.Then, the above-mentioned glass plate that contains the porous titanium oxide film is immersed in the dye solution behind the dyestuff in the absorbing dye solution, takes out drying and can obtain a photo cathode (photoanode).
Getting one in addition and be coated with the tin oxide glass that fluorine mixes, is 0.75 millimeter inlet with this tin oxide glass twist drill one diameter, uses in order to injecting electrolyte.Then, with chloroplatinic acid (H
2PtCl
6) solution coat is being coated with on the tin oxide glass plate surface that fluorine mixes, be heated to 400 ℃ then and handle and can obtain a negative electrode (cathode) in about 15 minutes.
Then, the thermoplastic polymer film of 60 microns of thickness is configured between photo cathode and the negative electrode, and surrounds one and supply to hold electrolytical annular region.Under 120 to 140 ℃, bring pressure to bear on this two electrode, with bonding this two electrode.
Electrolyte of the present invention is injected via inlet, and reusable heat thermoplastic polymer film seals inlet, can obtain DSSC of the present invention.
Below further specify characteristics of the present invention and effect through particular specific embodiment, but non-ly be used to limit category of the present invention.
The photoelectric efficiency test of embodiment 1 to 3 and comparative example 1
Be mixed with electrolyte composition according to following table 1 listed composition, and use the N719 dyestuff to be prepared into DSSC, wherein, the difference of comparative example and embodiment is that comparative example does not use hydroiodic acid triethylamine (THI).The part of photoelectric efficiency test is then with the short circuit current (J of battery
SC), open circuit voltage (V
OC), photoelectric conversion efficiency (η) and fill factor, curve factor (FF) be embedded in table 2.
Table 1
Table 2
| Numbering | Voc(V) | Jsc(mA/cm 2) | FF | η(％) |
| Comparative example 1 | 0.72 | 9.84 | 61.2 | 4.35 |
| Embodiment 1 | 0.73 | 11.43 | 60.0 | 5.00 |
| Embodiment 2 | 0.77 | 10.60 | 61.3 | 5.02 |
| Embodiment 3 | 0.76 | 10.68 | 58.3 | 4.71 |
Embodiment 1 to 3 uses the different solvents preparation electrolyte composition units efficiency test of going forward side by side respectively, and wherein, solvent has 3-methoxypropionitrile (MPN), gamma-butyrolacton (GBL), propene carbonate (PC), ethylene carbonate (EC) respectively.It is as shown in the table; The electric current and the magnitude of voltage of the DSSC that makes according to the embodiment composition all are higher than the comparative example 1 measured value that does not contain hydroiodic acid triethylamine (THI) in the electrolyte; Equally, use the efficiency of dye-sensitized solar battery of electrolyte composition of the present invention also higher.
The photoelectric efficiency test of embodiment 4 to 8 and comparative example 2
Be mixed with electrolyte composition according to following table 3 listed compositions, and use the N719 dyestuff to be prepared into DSSC, wherein, the difference of comparative example and embodiment is that comparative example does not use 1-methyl-3-propyl group iodate imidazoles (PMII).The part of photoelectric efficiency test is then with the short circuit current (J of battery
SC), open circuit voltage (V
OC), photoelectric conversion efficiency (η) and fill factor, curve factor (FF) be embedded in table 4.
Table 3
Table 4
| Numbering | Voc(V) | Jsc(mA/cm 2) | FF | η(％) |
| Comparative example 2 | 0.74 | 8.58 | 64.7 | 4.09 |
| Embodiment 4 | 0.74 | 8.92 | 62.3 | 4.09 |
| Embodiment 5 | 0.75 | 9.10 | 61.1 | 4.16 |
| Embodiment 6 | 0.76 | 9.19 | 62.4 | 4.35 |
| Embodiment 7 | 0.766 | 9.82 | 59.15 | 4.45 |
| Embodiment 8 | 0.76 | 10.11 | 59.29 | 4.56 |
As shown in table 4; Has higher current value to contain the DSSC that the 1-methyl-electrolyte composition of 3-propyl group iodate imidazoles (PMII) makes; And efficient is also higher, in addition, uses the higher solvent of boiling point also to help photoelectric conversion efficiency and booster tension value.And, preferably, N, the concentration ratio of substituted imidazole salts of N-and organic amine hydriodate is 1.1 to 5.In addition, in the preferred embodiment, use mixed solvent also can obtain suitable excellent photoelectric conversion efficiency like embodiment 3,7 and 8, and in the specific embodiment, the volume ratio of propene carbonate and ethylene carbonate is 1: 1.
Embodiment 1 and 2 and the test of the photoelectric efficiency of comparative example 3
The electrolyte of the comparative example 3 shown in the table 5 is formed, for containing the known electrolyte of inorganic metal salt, and after table 6 demonstration is formed the making DSSC with this electrolyte, measured short circuit current (J
SC), open circuit voltage (V
OC), photoelectric conversion efficiency (η) and fill factor, curve factor (FF).
Table 5
Table 6
| Numbering | Voc(V) | Jsc(mA/cm 2) | FF | η(％) |
| Comparative example 3 | 0.73 | 11.38 | 60.4 | 5.02 |
| Embodiment 1 | 0.73 | 11.43 | 60.0 | 5.00 |
| Embodiment 2 | 0.77 | 10.60 | 61.3 | 5.02 |
Can know like table 6 data presented; The novel electrolyte composition that the present invention proposes has and is equivalent to the known electrolytical performance of inorganic salts that contains; Because electrolyte composition of the present invention does not contain inorganic metal; Therefore each group partition inter-capacitive is preferable, and the configuration of the various electrolyte concentrations that are achieved more can avoid electrolyte dry and stable photoelectric conversion efficiency is provided.
The invention effect
In each item chemicals of DSSC; Electrolyte is for providing redox material; The efficient of DSSC element and module and stability then depend on electrolytical formula components; Therefore electrolyte formula is if composition and the high boiling solvent that can arrange in pairs or groups and can promote electric current and voltage then can become the high electrolyte of chemical stability.The present invention uses and is different from general metal salt compounded of iodine commonly used (like LiI, NaI, KI ... Deng); And use the organic amine hydriodate (like THI, TEAI ... Deng); The iodate imidazoles arrange in pairs or groups again (like PMII, EMII ... Deng); And adding N-butyl benzimidazole (or N-tolimidazole or tert .-butylpyridine) and guanidine thiocyanate, the high boiling solvent of arranging in pairs or groups again makes it become the high electrolyte ingredient of chemical stability, to reach the purpose of high-photoelectric transformation efficiency and long-acting stability.
In sum, no matter the present invention is with regard to purpose, gimmick and effect, or with regard in its technological layer and the research and development design, all shows totally different characteristic in known technology.It should be noted; Above-mentioned many embodiment have been merely is convenient to explanation so set forth it for example, but it is not in order to limit the present invention, any those skilled in the art; In without departing from the spirit or scope of the invention; When can doing a little change or modification, so the interest field that the present invention advocated be from should being as the criterion so that claims are said, but not only limits to the foregoing description.
Claims (16)
1. electrolyte for dye-sensitized solar cell composition comprises:
(a) organic amine hydriodate, percentage by weight are 2 to 25%;
(b) imidazole salts, percentage by weight are 2 to 25%;
(c) iodine, percentage by weight are 0.5 to 5%;
(d) guanidine thiocyanate, percentage by weight are 1 to 5%;
(e) benzimidizole derivatives, pyridine derivate or its mixture, percentage by weight is 2～15%; And
(f) solvent, percentage by weight are 50 to 92.5%.
2. electrolyte composition as claimed in claim 1, wherein, said (a) organic amine hydriodate is selected from hydroiodic acid triethylamine, hydroiodic acid tripropyl amine (TPA), hydroiodic acid tri-n-butylamine, hydroiodic acid triamylamine, hydroiodic acid trihexylamine or its mixture.
3. according to claim 1 or claim 2 electrolyte composition; Wherein, Said (b) imidazole salts is selected from 1-methyl-3-propyl group iodate imidazoles, 1; 3-dimethyl iodate imidazoles, 1-methyl-3-ethyl iodate imidazoles, 1-methyl-3-butyl iodate imidazoles, 1-methyl-3-amyl group iodate imidazoles, 1-methyl-3-hexyl iodate imidazoles, 1-methyl-3-heptyl iodate imidazoles, 1-methyl-3-octyl group iodate imidazoles, 1; 3-diethyl iodate imidazoles, 1-ethyl-3-propyl group iodate imidazoles, 1-ethyl-3-butyl iodate imidazoles, 1,3-dipropyl iodate imidazoles, 1-propyl group-3-butyl iodate imidazoles or its mixture.
4. according to claim 1 or claim 2 electrolyte composition, wherein, said (e) benzimidizole derivatives, pyridine derivate or its mixture are selected from N-tolimidazole, N-butyl benzimidazole, tert .-butylpyridine or its mixture.
5. according to claim 1 or claim 2 electrolyte composition, wherein, said (f) solvent is selected from acetonitrile, 3-methoxypropionitrile, N-methyl arsenic noise made in coughing or vomiting alkane ketone, gamma-butyrolacton, propene carbonate, ethylene carbonate or its mixture.
6. electrolyte composition as claimed in claim 3, wherein, said (e) benzimidizole derivatives, pyridine derivate or its mixture are selected from N-tolimidazole, N-butyl benzimidazole, tert .-butylpyridine or its mixture.
7. electrolyte composition as claimed in claim 6, wherein, said (f) solvent is selected from acetonitrile, 3-methoxypropionitrile, N-methyl arsenic noise made in coughing or vomiting alkane ketone, gamma-butyrolacton, propene carbonate, ethylene carbonate or its mixture.
8. electrolyte composition as claimed in claim 1, wherein, the percentage by weight of said organic amine hydriodate is 15.1%; The percentage by weight of imidazole salts is 2.3%; The percentage by weight of iodine is 1.3%; The percentage by weight of guanidine thiocyanate is 1.2%; Be somebody's turn to do the percentage by weight 8.7% of (e) benzimidizole derivatives, pyridine derivate or its mixture; And be somebody's turn to do the percentage by weight 71.4% of (f) solvent.
9. DSSC comprises:
(A) photo cathode;
(B) negative electrode; And
(C) dielectric substrate is formed on this negative electrode and the surface that this photo cathode contacts, and said dielectric substrate comprises
(a) organic amine hydriodate;
(b) imidazole salts;
(c) iodine;
(d) guanidine thiocyanate;
(e) benzimidizole derivatives, pyridine derivate or its mixture; And
(f) solvent.
10. DSSC as claimed in claim 9; Wherein, Said photo cathode comprises substrate, porous semiconductor film, is formed at conducting film and dye composition between this substrate and the porous semiconductor film, and said dye composition is arranged on the conducting film and is filled in the hole of porous semiconductor film.
11. DSSC as claimed in claim 10, wherein, said dielectric substrate is formed between said negative electrode and the porous semiconductor film.
12. DSSC as claimed in claim 9, wherein, said (a) organic amine hydriodate is selected from hydroiodic acid triethylamine, hydroiodic acid tripropyl amine (TPA), hydroiodic acid tri-n-butylamine, hydroiodic acid triamylamine, hydroiodic acid trihexylamine or its mixture.
13. DSSC as claimed in claim 9; Wherein, Said (b) imidazole salts is selected from 1-methyl-3-propyl group iodate imidazoles, 1; 3-dimethyl iodate imidazoles, 1-methyl-3-ethyl iodate imidazoles, 1-methyl-3-butyl iodate imidazoles, 1-methyl-3-amyl group iodate imidazoles, 1-methyl-3-hexyl iodate imidazoles, 1-methyl-3-heptyl iodate imidazoles, 1-methyl-3-octyl group iodate imidazoles, 1; 3-diethyl iodate imidazoles, 1-ethyl-3-propyl group iodate imidazoles, 1-ethyl-3-butyl iodate imidazoles, 1,3-dipropyl iodate imidazoles, 1-propyl group-3-butyl iodate imidazoles or its mixture.
14. DSSC as claimed in claim 9, wherein, said (e) benzimidizole derivatives, pyridine derivate or its mixture are selected from N-tolimidazole, N-butyl benzimidazole, tert .-butylpyridine or its mixture.
15. DSSC as claimed in claim 9, wherein, said (f) solvent is selected from acetonitrile, 3-methoxypropionitrile, N-methyl arsenic noise made in coughing or vomiting alkane ketone, gamma-butyrolacton, propene carbonate, ethylene carbonate or its mixture.
16. DSSC as claimed in claim 12; Wherein, Said (b) imidazole salts is selected from 1-methyl-3-propyl group iodate imidazoles, 1; 3-dimethyl iodate imidazoles, 1-methyl-3-ethyl iodate imidazoles, 1-methyl-3-butyl iodate imidazoles, 1-methyl-3-amyl group iodate imidazoles, 1-methyl-3-hexyl iodate imidazoles, 1-methyl-3-heptyl iodate imidazoles, 1-methyl-3-octyl group iodate imidazoles, 1; 3-diethyl iodate imidazoles, 1-ethyl-3-propyl group iodate imidazoles, 1-ethyl-3-butyl iodate imidazoles, 1,3-dipropyl iodate imidazoles, 1-propyl group-3-butyl iodate imidazoles or its mixture; Said (e) benzimidizole derivatives, pyridine derivate or its mixture are selected from N-tolimidazole, N-butyl benzimidazole, tert .-butylpyridine or its mixture; And said (f) solvent is selected from acetonitrile, 3-methoxypropionitrile, N-methyl arsenic noise made in coughing or vomiting alkane ketone, gamma-butyrolacton, propene carbonate, ethylene carbonate or its mixture.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW396642B (en) * | 1998-01-23 | 2000-07-01 | Josuke Nakata | Solar cell module of and photo-electrolysis apparatus |
| JP2003059547A (en) * | 2001-08-17 | 2003-02-28 | Nippon Kayaku Co Ltd | Dye sensitizing photoelectric transfer element |
| CN1524315A (en) * | 2001-07-06 | 2004-08-25 | �ձ���ҩ��ʽ���� | Photoelectric conversion element sensitized with coloring matter |
| CN101354967A (en) * | 2008-09-05 | 2009-01-28 | 浙江科技学院 | Quasi solid electrolyte for dye sensitization solar battery and preparation method thereof |
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2010
- 2010-08-04 CN CN2010102443769A patent/CN102347138A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW396642B (en) * | 1998-01-23 | 2000-07-01 | Josuke Nakata | Solar cell module of and photo-electrolysis apparatus |
| CN1524315A (en) * | 2001-07-06 | 2004-08-25 | �ձ���ҩ��ʽ���� | Photoelectric conversion element sensitized with coloring matter |
| JP2003059547A (en) * | 2001-08-17 | 2003-02-28 | Nippon Kayaku Co Ltd | Dye sensitizing photoelectric transfer element |
| CN101354967A (en) * | 2008-09-05 | 2009-01-28 | 浙江科技学院 | Quasi solid electrolyte for dye sensitization solar battery and preparation method thereof |
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