CN1211866C - Electrolyte solution for dye sensitized nano film solar cell - Google Patents
Electrolyte solution for dye sensitized nano film solar cell Download PDFInfo
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- CN1211866C CN1211866C CN 02157280 CN02157280A CN1211866C CN 1211866 C CN1211866 C CN 1211866C CN 02157280 CN02157280 CN 02157280 CN 02157280 A CN02157280 A CN 02157280A CN 1211866 C CN1211866 C CN 1211866C
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- component
- derivative
- electrolyte solution
- compounding ingredient
- iodide
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Abstract
The present invention discloses an electrolyte solution for a dye sensitization nanometer thin film solar cell, which uses A, B or B, F or A, B, F as main components. The electrolyte solution is composed of one or a plurality of components in four components by compounding or non compounding, wherein the A component is an organic solvent or a mixed organic solvent; the B component is the oxidation reduction pairs of I2/I<-> (namely I3<->/I<->); a C component is a compounding agent of a light anode; a D component is a compounding agent of positive ions in iodide; an E component is a compounding agent of I2; the F component is ionic liquid; a G component is a UV absorbing agent. The present invention has the advantages of high electric conductivity, low viscosity, excellent electrochemical reciprocity, excellent low-temperature stability, strong ultraviolet resistance, stable proper performance, no pollution for the environment, etc., can enhance solar cell efficiency, and can increase the service life of the solar cell.
Description
Technical field
The invention belongs to chemical electrolysis matter solution field, particularly relate to a kind of solar cell electrolyte solution.
Background technology
Fast development along with human civilization; the mankind also are being faced with serious problems such as energy crisis and environmental pollution; solar cell is as a kind of mode of the renewable energy resources; be one of important channel that solves energy crisis and environmental pollution in the worldwide, wherein the dye-sensitized film solar cell with its at a low price, characteristics such as pollution-free, good stability, excellent performance and become a kind of novel solar cell that application prospect is arranged greatly.Electrolyte solution is one of core of solar cell.Different electrolyte can cause great influence to the performance of battery.But dye-sensitized nano film solar battery of the prior art is with the molten shortcomings such as conductivity is lower, viscosity is higher, electrochemical reversibility is poor, low-temperature stability difference that exist of electrolyte.
Summary of the invention
The present invention is a kind of dye-sensitized nano film solar battery electrolyte solution, particularly it has the dye-sensitized nano film solar battery electrolyte solution of higher conductivity, lower viscosity, excellent electrochemical reversibility, good low-temperature stability, stronger features such as UV resistant performance, be the main body component with A, B or B, F or A, B, F, form electrolyte solution by one or several component in composite or not composite other four components, be mainly used in the dye-sensitized film solar cell.
(1) A component: organic solvent or mixed organic solvents;
As the organic solvent in the electrolyte solution, can use alcohols (as alcohol and the derivative thereof that is in a liquid state under the normal temperature such as methyl alcohol, ethanol, propyl alcohol, isopropyl alcohol); Ester class (as ester and the derivative thereof that is in a liquid state under the normal temperature such as methyl formate, methyl acetate, Ethyl formate, ethyl acetate, gamma-butyrolacton, δ-caprolactone, propene carbonate); Amide-type (as acid amides and the derivative thereof that is in a liquid state under the normal temperature such as N-methylformamide, N, dinethylformamide, N-ethyl-formamide); Ethers (as ether and the derivative thereof that is in a liquid state under the normal temperature such as methyl ether, ether, oxolane, glycol dimethyl ether); Nitrile (as nitrile and the derivative thereof that is in a liquid state under the normal temperature such as acetonitrile, propionitrile, different propionitrile, butyronitrile, isobutyronitrile, malononitrile, succinonitrile, methoxypropionitrile); The sulfone that is in a liquid state under the normal temperature, sulfoxide and derivative thereof; Low viscous macromolecular compound (as the low viscous high polymer that is in a liquid state under the normal temperature such as polyester, polyethers, silicone oil).
Above-mentioned organic solvent can use separately, and also can mix and use with arbitrary proportion, and also better to mix result of use.
Mixed organic solvents can be the mixture of the organic solvent that is in a liquid state under the normal temperature, also can be the mixture of the above-mentioned organic compound that is solid-state under the organic solvent that is in a liquid state under the normal temperature and the normal temperature.
(2) B component: the I that electrochemical reversibility is good
2/ I
-(or I
3 -/ I
-) oxidation-reduction pair;
As the I in the electrolyte solution
2/ I
-(be I
3 -/ I
-) oxidation-reduction pair, the ratio of the amount of substance of iodine and iodide is arbitrarily, can determine its ratio according to factors such as operating position and sun light intensity.
As the iodide in the electrolyte solution, can be that metal iodide is (as NaI, KI, LiI, RbI, MgI
2, CaI
2, BaI
2, AlI
3, CrI
3, SnI
4Deng metal iodide), the iodide of organic cation and derivative thereof are (as the iodide of various organic ammonium ions and derivative thereof, the iodide of various organic quaternary ammonium ions and derivative thereof, the iodide of various organic heterocyclic ions such as imidazoles, substituted imidazole, pyridine, substituted pyridines, thiazole, substituted thiazole etc. and derivative thereof).
The iodide of above-mentioned metal iodide, organic cation and derivative thereof can use separately, also can mix and use with arbitrary proportion, and better to mix result of use, can control photoelectric current, photovoltage, fill factor, curve factor and the power output of dye-sensitized nano film solar battery easily.
(3) C component: the compounding ingredient of light anode (or chelating agent);
As the light anode compounding ingredient in the electrolyte solution, can be that various monobasics or multicomponent heterocycle compound (mainly are O, N, heterocycles such as S) and derivative, polyalcohol, multi-thiol, polyamine, polybasic carboxylic acid, EDTA and derivative thereof, wherein with pyridine and substituted pyridines and derivative thereof, second bipyridine and derivative thereof, terpyridyl and derivative thereof, Phen and derivative thereof (but wherein being solid-state wiring solution-forming) directly handle the light anode or the performance of the dye-sensitized nano film solar battery that makes as the component in the electrolyte solution best, be good dark current inhibitor.
Above-mentioned smooth anode compounding ingredient can use separately, also can mix with arbitrary proportion and use.
Pyridine and substituted pyridines and derivative thereof, bipyridine and derivative thereof, Phen and derivative thereof can improve the electricity conversion of solar cell, and be higher by 11% than the solar cell that does not use this compounding ingredient.
(4) D component: cationic compounding ingredient (or chelating agent) in the iodide;
As the iodide cation compounding ingredient in the electrolyte solution, can be that various monobasics or multicomponent heterocycle compound (mainly are O, N, heterocycles such as S) and derivative, polyalcohol, multi-thiol, polyamine, polybasic carboxylic acid, EDTA and derivative thereof, wherein with pyridine and substituted pyridines and derivative thereof, second bipyridine and derivative thereof, terpyridyl and derivative thereof, Phen and derivative thereof, (hetero-atom can be O to crown ether, N, the combination in any of S) and derivative, (hetero-atom can be O to cave ether, N, the combination in any of S) and the better performances of the dye-sensitized nano film solar battery that makes as the component in the electrolyte solution of derivative, the reducing activity of iodide ion is strong.
The cation compounding ingredient can use separately in the above-mentioned iodide, also can mix with arbitrary proportion and use.
Crown ether and derivative thereof, cave ether and derivative thereof can improve the solubility of alkaline metal iodide can be up to more than 20 times, and the conductivity of solution can be up to more than ten times.
(5) E component: I
2Compounding ingredient (or chelating agent);
As the I in the electrolyte solution
2Compounding ingredient, can be that various monobasics or multicomponent heterocycle compound (mainly are O, N, heterocycles such as S) and derivative, polyalcohol, multi-thiol, polyamine, polybasic carboxylic acid, EDTA and derivative thereof, wherein with pyridine and substituted pyridines and derivative thereof, second bipyridine and derivative thereof, terpyridyl and derivative thereof, Phen and derivative thereof, (hetero-atom can be O to crown ether, N, the combination in any of S) and derivative, (hetero-atom can be O to cave ether, N, the combination in any of S) better performances of the dye-sensitized nano film solar battery that makes as the component in the electrolyte solution is good dark current inhibitor.
Above-mentioned I
2Compounding ingredient can use separately, also can mix use with arbitrary proportion.
Pyridine and substituted pyridines and derivative thereof, bipyridine and derivative thereof, crown ether and derivative thereof, cave ether and derivative thereof can improve the electricity conversion of solar cell, and be higher by 14% than the solar cell that does not use this compounding ingredient.
(6) F component: ionic liquid;
As the component in the electrolyte solution---ionic liquid, can be various ionic liquids, be best wherein with glyoxaline ion liquid, can improve the conductivity of electrolyte solution, thus the ohmmic drop that can reduce dye-sensitized nano film solar battery.
Above-mentioned ionic liquid can use separately, also can mix with arbitrary proportion and use.
(7) G component: ultraviolet absorber
As the ultraviolet absorber in the electrolyte solution, main absorbing wavelength is the 200-400nm ultraviolet light, can use ultraviolet absorbers such as salicylate class, benzophenone, benzotriazole, benzimidazole, benzothiazoles, nickel chelate class, hindered amines, be best with benzimidazole wherein, the ultraviolet-resistant performance of the dye-sensitized nano film solar battery that makes is good.
Above-mentioned ultraviolet absorber can use separately, also can mix with arbitrary proportion and use, to mate with sunlight.
Electrolyte solution of the present invention can be used as the electrolyte solution of dye-sensitized nano film solar battery and uses, and also can be used as the electrolyte solution in other kind solar cells and the non-solar cell.
Electrolyte solution of the present invention has higher conductivity, lower viscosity, excellent electrochemical reversibility, good low-temperature stability, stronger UV resistant performance, can improve efficiency of solar cell, increase the solar cell life-span, stable performance own, environmentally safe.
The professional who is familiar with state of the art can understand above and other purpose of the present invention and advantage well from above-mentioned prescription and using method.
Embodiment
1, prescription one
Every dm
3In the solution, each constituent content is:
B component: lithium iodide: 0.1moldm
-3
3-ethyl-1-methylimidazole iodine: 0.6moldm
-3
Iodine: 0.08moldm
-3
C component: 4-tert .-butylpyridine: 0.5moldm
-3
D component: 0
The E component:: 4-tert .-butylpyridine 0.5moldm
-3
F component: 0
G component: 0
Remaining liquor capacity is the A component: the 3-methoxypropionitrile
2, prescription two
Every dm
3In the solution, each constituent content is:
A component: 0
B component: lithium iodide: 0.2moldm
-3
3-ethyl-1-methylimidazole iodine: 0.8moldm
-3
Iodine: 0.1moldm
-3
C component: 4-tert .-butylpyridine: 0.5moldm
-3
D component: 0
E component: 0
G component: 0
Remaining liquor capacity is the F component: 3-ethyl-1-methylimidazole fluoroform sulfonamide
3, prescription three
Every dm
3In the solution, each constituent content is:
B component: lithium iodide: 3moldm
-3
Iodine: 0.4moldm
-3
C component: 4-tert .-butylpyridine: 0.5moldm
-3
D component: 12-crown-4: 2.8moldm
-3
E component: 18-hat-6:0.4moldm
-3
F component: 3-ethyl-1-methylimidazole fluoroform sulfonamide: 0.1moldm
-3
G component: benzimidazole: 0.3moldm
-3
Remaining liquor capacity is the A component: volume ratio is 1: 1 valeronitrile and an acetonitrile
Claims (2)
1, dye-sensitized nano film solar battery electrolyte solution is characterized in that being: the mixed solution of B component and A component, the perhaps mixed solution of B component and F component, the perhaps mixed solution of B component and A component, F component;
The B component is the good I of electrochemical reversibility
2/ I
-Be I
3 -/ I
-Oxidation-reduction pair, iodide wherein are NaI, KI, LiI, RbI, MgI
2, CaI
2, BaI
2And AlI
3
The A component is organic solvent or mixed organic solvents, organic solvent is methyl alcohol, ethanol, propyl alcohol, isopropyl alcohol, methyl formate, methyl acetate, Ethyl formate, ethyl acetate, gamma-butyrolacton, δ-caprolactone, propene carbonate, N-methylformamide, N, dinethylformamide, N-ethyl-formamide, methyl ether, ether, oxolane, glycol dimethyl ether, acetonitrile, propionitrile, different propionitrile, butyronitrile, isobutyronitrile, malononitrile, succinonitrile, methoxypropionitrile, these organic solvents both can use separately, also can mix with arbitrary proportion and use;
The F component is 3-ethyl-1-methylimidazole fluoroform sulfonamide, and F component and A component can be mixed use with arbitrary proportion.
2, dye-sensitized nano film solar battery electrolyte solution according to claim 1 is characterized in that in the solution adding the compounding ingredient of C component-light anode; Or cationic compounding ingredient in D component-iodide; Or E component-I
2Compounding ingredient; Or the composite mixture of G component-ultraviolet absorber or said components;
The compounding ingredient of C component-light anode is pyridine, substituted pyridines and derivative thereof, second bipyridine and derivative thereof, terpyridyl and derivative thereof, Phen and derivative thereof, polyamine, polybasic carboxylic acid, EDTA and derivative thereof; These light anode compounding ingredients can directly be handled the light anode, also can be used as the component in the electrolyte solution; Both can use separately, and also can mix and use with arbitrary proportion;
Cationic compounding ingredient is crown ether and derivative, cave ether and derivative thereof in D component-iodide; Cation compounding ingredient in these iodide both can use separately, also can mix with arbitrary proportion and use;
E component-I
2Compounding ingredient be pyridine, substituted pyridines and derivative thereof, second bipyridine and derivative thereof, terpyridyl and derivative thereof, Phen and derivative thereof, these I
2Compounding ingredient, both can use separately, also can mix use with arbitrary proportion;
G component-ultraviolet absorber is salicylate class, benzophenone, benzotriazole, benzimidazole, benzothiazoles ultraviolet absorber, and these ultraviolet absorbers both can use separately, also can mix with arbitrary proportion and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157280 CN1211866C (en) | 2002-12-25 | 2002-12-25 | Electrolyte solution for dye sensitized nano film solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157280 CN1211866C (en) | 2002-12-25 | 2002-12-25 | Electrolyte solution for dye sensitized nano film solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1444290A CN1444290A (en) | 2003-09-24 |
| CN1211866C true CN1211866C (en) | 2005-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157280 Expired - Fee Related CN1211866C (en) | 2002-12-25 | 2002-12-25 | Electrolyte solution for dye sensitized nano film solar cell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452247C (en) * | 2005-08-23 | 2009-01-14 | 中国科学院物理研究所 | Method for original position preparing electrolyte based on sulfonated aluminium |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2550422A1 (en) | 2003-12-18 | 2005-06-30 | Dyesol Ltd | Method for electrolytic engineering of nano-particulate layers |
| AU2004298829B2 (en) * | 2003-12-18 | 2009-01-22 | Dyesol Ltd | Method for electrolytic engineering of nano-particulate layers |
| CN100358160C (en) * | 2004-12-15 | 2007-12-26 | 中国科学院化学研究所 | Preparing dye sensitized nanocrystalline semiconductor solar cell optical anode using electrical spinning method |
| CN101241774B (en) * | 2007-02-09 | 2010-11-10 | 中国科学院物理研究所 | A compound electrolyte composition and its making method |
| CN101261889B (en) * | 2007-03-08 | 2010-12-15 | 中国科学院物理研究所 | Guanidinium ionic liquid compound electrolyte and its making method for dye sensitized solar battery |
| CN101740224B (en) * | 2009-12-25 | 2012-03-28 | 彩虹集团公司 | Preparation method of dye-sensitized solar battery forming ionic liquid crystallizing system |
| CN102024569A (en) * | 2010-09-29 | 2011-04-20 | 大连七色光太阳能科技开发有限公司 | Solar battery electrolyte and application thereof |
| CN102097213B (en) * | 2011-01-30 | 2012-07-25 | 中国科学院广州能源研究所 | Sulfur-based ion liquid based multi-sulfur electrolyte for quantum dot sensitized solar cell and preparation method thereof |
-
2002
- 2002-12-25 CN CN 02157280 patent/CN1211866C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452247C (en) * | 2005-08-23 | 2009-01-14 | 中国科学院物理研究所 | Method for original position preparing electrolyte based on sulfonated aluminium |
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|---|---|
| CN1444290A (en) | 2003-09-24 |
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