CN103050288A - Light transformation film pulp for dye sensitization solar battery - Google Patents
Light transformation film pulp for dye sensitization solar battery Download PDFInfo
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- CN103050288A CN103050288A CN2012105665619A CN201210566561A CN103050288A CN 103050288 A CN103050288 A CN 103050288A CN 2012105665619 A CN2012105665619 A CN 2012105665619A CN 201210566561 A CN201210566561 A CN 201210566561A CN 103050288 A CN103050288 A CN 103050288A
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- light transformation
- solar battery
- transformation film
- battery
- dye
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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Abstract
The invention relates to a light transformation film for a nanocrystalline solar battery, in particular to light transformation film pulp for a dye sensitization solar battery. The light transformation film pulp is characterized in that the light transformation film pulp comprises the following components by weight percent: 0.0050% to 0.0500% of fluorescent dye and the balance of organic carriers. When the light transformation film pulp is used, the light transformation film prepared from the light transformation film pulp is coated outside the battery, and after sunlight filtered by the dye sensitization solar battery is absorbed, through absorption of the fluorescent dye, a wave band required by the dye can be converted, thereby increasing the utilization rate of the sunlight and achieving the purpose of increasing the photoelectric transition efficiency of the nanocrystalline solar battery. By adopting the light transformation film prepared from the light transformation film pulp and on the premise that the cost of the battery is not increased, the sunlight is fully utilized, and competitive adsorption with the dye cannot be generated.
Description
Technical field
The present invention relates to the optical conversion film for nano-crystalline solar battery, especially a kind of used by dye sensitization solar battery optical conversion film slurry.
Background technology
New forms of energy are one of five large technical fields that tool determines power in the 21 century development of world economy.Solar energy is a kind of cleaning, the efficiently and never depleted energy, and research and utilization solar energy is the most real concerning the mankind.DSSC is because manufacture method is simple, with low cost, and the higher favourable competitor who becomes the silicon wafer solar cell of conversion efficiency causes and pays close attention to widely and study.The efficient of the DSSC of small size surpasses 11% at present.
DSSC mainly contains following a few part and forms: light anode, electrolyte and to electrode.Docking forms the cavity that seals with the light anode with to electrode, and electrolyte injects this cavity, has so just formed DSSC.The light anode mainly is made of transparent conducting glass and nano-crystalline titanium dioxide semiconductive thin film, and negative electrode mainly is comprised of transparent conducting glass and platinum conductive layer.The conversion ratio of DSSC can't be mentioned in the same breath with the efficient of crystal silicon battery at present, main cause is because the utilization to sunlight of battery is not high, the dyestuff of used in battery can only the absorption portion sunlight, another part can't absorption bands light can pass through the battery transmissive, limited the phototranstormation efficiency of battery.
Silicon solar battery structure and technique than the DSSC complexity many.The silion cell material is higher than DSSC to the absorptivity of sunlight, and this is to cause photoelectric conversion rate to differ a larger reason.In addition, comprise the structures such as matte, antireflective coating and back reflection layer in the silicon solar battery structure, this also is to cause one of low major reason of silicon solar cell reflectivity.DSSC mainly relies on the absorption of used dyestuff to sun Optical Absorption, absorption region is narrower, and is not high to the utilance of sunlight.
Summary of the invention
The purpose of this invention is to provide a kind of used by dye sensitization solar battery optical conversion film slurry, adopt the photoelectric conversion efficiency that can be improved battery by the optical conversion film of this slurry preparation.
A kind of used by dye sensitization solar battery optical conversion film slurry, its special feature be, the percentage composition meter consists of by weight: fluorescent dye accounts for 0.0050%-0.0500%, and surplus is organic carrier.
Wherein fluorescent dye is fluorescein 8G, fluorescein 6G or fluorescein 3G.
Wherein organic carrier is ethyl cellulose and terpinol, and the mass ratio of ethyl cellulose and terpinol is 1:6-12.
Apply the optical conversion film for preparing with slurry of the present invention at outside batteries during use, behind the sunlight that has absorbed the DSSC filtration, absorption by fluorescent dye, can convert the needed wave band of dyestuff to, thereby improve the utilance of sunlight, reach the purpose of the photoelectric conversion efficiency that improves nano-crystalline solar battery.Adopt the optical conversion film of slurry preparation of the present invention under the prerequisite that does not increase the battery cost, take full advantage of sunlight, and do not compete absorption with the dyestuff generation.
Embodiment
The quality of sensitizing dyestuff performance is the key factor that directly determines photronic photoelectric conversion efficiency in the battery, desirable dyestuff must be that sunlight is had good absorption characteristic, can absorb most or all of incident lights, its absorption spectrum and solar spectrum mate well.Employed dyestuff mainly absorbs from 400 to 600nm light in the DSSC at present, other part sunlights then are reflected or transmissive, the light absorption that this has limited DSSC is a reason that causes battery efficiency not high.
And the inventive method is by the adding of fluorescent dye, and the unmatched photon of energy in the solar spectrum is carried out frequency (being wavelength) modulation, and it is easilier absorbed by sensitizing dyestuff, thereby improves the photoelectric conversion efficiency of nano-crystalline solar battery.The extinction wave spectrum scope of the fluorescent dye that the present invention selects is mainly from 300 to 500nm visible region, the absorbing wavelength of saying N3 dyestuff and the fluorescent dye of selecting from absorption spectrum is just in time complementary, the fluorescent dye of selecting absorbs the light of the non-absorbent part wavelength of N3 dyestuff, does not have the problem of vying each other.The wavelength of transmitted light scope of the fluorescent dye of selecting is to 600nm from 400.And this just in time with the wave-length coverage coupling of the absorption maximum of N3.Therefore the fluorescent dye of selecting neither absorbs sunlight with the competition of N3 dyestuff, can launch again the needed photon of N3 dyestuff, can play the absorption that increases the N3 dyestuff and not produce again the photonic modulation effect that absorbs competition.
The optical conversion film that adopts slurry of the present invention to prepare can be used for the DSSC of flexible substrates or substrate of glass, the preparation optical conversion film, film thickness is about 4-8 μ m, can adopt silk screen printing, is coated with, spraying or czochralski method be coated in the substrate.
Embodiment 1:
Take by weighing 700g terpinol liquid, place 65 ℃ of stirring in water bath, rotating speed is 240 to turn/min, in mass ratio (ethyl cellulose: terpinol, lower with) be 1: 7, add the 100g ethyl cellulose, continuous stirring 3 hours, fully dissolving forms organic carrier.Take by weighing 0.005g fluorescein 8G and fully stir and be dissolved in the 99.995g organic carrier, form 0.005% fluorescein 8G mixed solution.
The method of employing silk screen printing is coated in the nonconductive surface of electro-conductive glass, and levelling is also dry, obtains the film of thickness 6 μ m.Becoming the DSSC dyestuff with this electrode assembling is ruthenium complex N3 dyestuff, and the light anode is nano titanium oxide (P25) film.At room temperature, use the xenon lamp simulated solar irradiation, intensity is 500W, and the battery effective area of shining light is 0.25cm2, and the photoelectric conversion efficiency that calculates battery is 5.23%.
Embodiment 2:
Take by weighing 700g terpinol liquid, place 65 ℃ of stirring in water bath, rotating speed is 100 to turn/min, is 1: 12 in mass ratio, adds the 53.84g ethyl cellulose, continuous stirring 3 hours, and fully dissolving forms organic carrier.Take by weighing 0.050g fluorescein 8G and fully stir and be dissolved in the 99.950g organic carrier, rotating speed is 100 to turn/min, forms 0.050% fluorescein 8G mixed solution.
The method of employing silk screen printing is coated in the nonconductive surface of electro-conductive glass, and levelling is also dry, obtains the approximately film about 5 μ m of thickness.Becoming the DSSC dyestuff with this electrode assembling is ruthenium complex N3 dyestuff, and the light anode is nano titanium oxide (P25) film.At room temperature, use the xenon lamp simulated solar irradiation, intensity is 500W, and the battery effective area of shining light is 0.25cm2, and the photoelectric conversion efficiency that calculates battery is 4.87%.
Embodiment 3:
Taking by weighing 700g terpinol liquid, place 65 ℃ of stirring in water bath, is 1: 7 in mass ratio, and rotating speed is 100 to turn/min, adds the 100g ethyl cellulose, continuous stirring 3 hours, and fully dissolving forms organic carrier.Take by weighing 0.005g fluorescein 6G and fully stir and be dissolved in the 99.995g organic carrier, rotating speed is 100 to turn/min, forms 0.005% fluorescein 6G mixed solution.
The method of employing silk screen printing is coated in the nonconductive surface of electro-conductive glass, and levelling is also dry, obtains the approximately film about 6 μ m of thickness.Becoming the DSSC dyestuff with this electrode assembling is ruthenium complex N3 dyestuff, and the light anode is nano titanium oxide (P25) film.At room temperature, use the xenon lamp simulated solar irradiation, intensity is 500W, and the battery effective area of shining light is 0.25cm2, and the photoelectric conversion efficiency that calculates battery is 5.14%.
Embodiment 4:
Taking by weighing 700g terpinol liquid, place 65 ℃ of stirring in water bath, is 1: 12 in mass ratio, and rotating speed is 100 to turn/min, adds the 53.84g ethyl cellulose, continuous stirring 3 hours, and fully dissolving forms organic carrier.Take by weighing 0.050g fluorescein 6G and fully stir and be dissolved in the 99.950g organic carrier, rotating speed is 100 to turn/min, forms 0.050% fluorescein 6G mixed solution.
The method of employing silk screen printing is coated in the nonconductive surface of electro-conductive glass, and levelling is also dry, obtains the approximately film about 5 μ m of thickness.Becoming the DSSC dyestuff with this electrode assembling is ruthenium complex N3 dyestuff, and the light anode is nano titanium oxide (P25) film.At room temperature, use the xenon lamp simulated solar irradiation, intensity is 500W, and the battery effective area of shining light is 0.25cm2, and the photoelectric conversion efficiency that calculates battery is 4.73%.
Embodiment 5:
Taking by weighing 700g terpinol liquid, place 65 ℃ of stirring in water bath, is 1: 7 in mass ratio, and rotating speed is 100 to turn/min, adds the 100g ethyl cellulose, continuous stirring 3 hours, and fully dissolving forms organic carrier.Take by weighing 0.005g fluorescein 3G and fully stir and be dissolved in the 99.995g organic carrier, rotating speed is 100 to turn/min, forms 0.005% fluorescein 3G mixed solution.
The method of employing silk screen printing is coated in the nonconductive surface of electro-conductive glass, and levelling is also dry, obtains the approximately film about 6 μ m of thickness.Becoming the DSSC dyestuff with this electrode assembling is ruthenium complex N3 dyestuff, and the light anode is nano titanium oxide (P25) film.At room temperature, use the xenon lamp simulated solar irradiation, intensity is 500W, and the battery effective area of shining light is 0.25cm2, and the photoelectric conversion efficiency that calculates battery is 5.06%.
Embodiment 6:
Taking by weighing 700g terpinol liquid, place 65 ℃ of stirring in water bath, is 1: 12 in mass ratio, and rotating speed is 100 to turn/min, slowly adds the 53.84g ethyl cellulose, continuous stirring 3 hours, and fully dissolving forms organic carrier.Take by weighing 0.050g fluorescein 3G and fully stir and be dissolved in the 99.950g organic carrier, rotating speed is 100 to turn/min, forms 0.050% fluorescein 3G mixed solution.
The method of employing silk screen printing is coated in the nonconductive surface of electro-conductive glass, and levelling is also dry, obtains the approximately film about 6 μ m of thickness.Becoming the DSSC dyestuff with this electrode assembling is ruthenium complex N3 dyestuff, and the light anode is nano titanium oxide (P25) film.At room temperature, use the xenon lamp simulated solar irradiation, intensity is 500W, and the battery effective area of shining light is 0.25cm2, and the photoelectric conversion efficiency that calculates battery is 4.69%.
Claims (3)
1. a used by dye sensitization solar battery optical conversion film slurry is characterized in that, the percentage composition meter consists of by weight: fluorescent dye accounts for 0.0050%-0.0500%, and surplus is organic carrier.
2. a kind of used by dye sensitization solar battery optical conversion film slurry as claimed in claim 1, it is characterized in that: wherein fluorescent dye is fluorescein 8G, fluorescein 6G or fluorescein 3G.
3. a kind of used by dye sensitization solar battery optical conversion film slurry as claimed in claim 1, it is characterized in that: wherein organic carrier is ethyl cellulose and terpinol, and the mass ratio of ethyl cellulose and terpinol is 1:6-12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105665619A CN103050288A (en) | 2012-12-24 | 2012-12-24 | Light transformation film pulp for dye sensitization solar battery |
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| CN2012105665619A CN103050288A (en) | 2012-12-24 | 2012-12-24 | Light transformation film pulp for dye sensitization solar battery |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309409A (en) * | 2001-03-13 | 2001-08-22 | 华南理工大学 | Application of electrically conductive polymers and their blend system in field-emission cathode |
| CN101494248A (en) * | 2009-03-05 | 2009-07-29 | 中山大学 | Flat-plate concentration solar battery and method for manufacturing the same |
| CN101515505A (en) * | 2009-03-31 | 2009-08-26 | 彩虹集团公司 | Method for preparing platinum electrode of dye sensitized solar cell |
| CN101593631A (en) * | 2009-06-29 | 2009-12-02 | 彩虹集团公司 | A kind of preparation method of dye sensitization solar cell module |
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- 2012-12-24 CN CN2012105665619A patent/CN103050288A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1309409A (en) * | 2001-03-13 | 2001-08-22 | 华南理工大学 | Application of electrically conductive polymers and their blend system in field-emission cathode |
| CN101494248A (en) * | 2009-03-05 | 2009-07-29 | 中山大学 | Flat-plate concentration solar battery and method for manufacturing the same |
| CN101515505A (en) * | 2009-03-31 | 2009-08-26 | 彩虹集团公司 | Method for preparing platinum electrode of dye sensitized solar cell |
| CN101593631A (en) * | 2009-06-29 | 2009-12-02 | 彩虹集团公司 | A kind of preparation method of dye sensitization solar cell module |
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Application publication date: 20130417 |