CN102082031B - Novel dye-sensitized solar cell photoanode - Google Patents

Novel dye-sensitized solar cell photoanode Download PDF

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Publication number
CN102082031B
CN102082031B CN 200910230946 CN200910230946A CN102082031B CN 102082031 B CN102082031 B CN 102082031B CN 200910230946 CN200910230946 CN 200910230946 CN 200910230946 A CN200910230946 A CN 200910230946A CN 102082031 B CN102082031 B CN 102082031B
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China
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zno
infrared
dye
tio2
sensitized solar
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CN102082031A (en
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黄金昭
魏显起
李萍
李世帅
张仲
王培吉
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Jinan University
University of Jinan
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University of Jinan
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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

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  • Hybrid Cells (AREA)

Abstract

The invention relates to a dye-sensitized solar cell laminated photoanode based on a one-dimensional ordered nano-ZnO/TiO2 core-shell structure and an infrared up-conversion luminous material, and the dye-sensitized solar cell laminated photoanode provided by the invention comprises a ZnO nano-thin film layer (3) grown on a transparent glass substrate (1) on which a transparent conductive film ITO (indium tin oxide) (2) is grown, the one-dimensional ordered nano-ZnO (4)/TiO2 (5) core-shell structure grown on the ZnO nano-thin film layer, and a finally prepared compound thin film (6) made of TiO2 and the infrared up-conversion luminous material. The dye-sensitized solar cell laminated photoanode based on the one-dimensional ordered nano-ZnO/TiO2 core-shell structure and the infrared up-conversion luminous material has the following advantages: 1) the excellent photovoltaic property of the TiO2 material is fully utilized; 2) the one-dimensional ordered nano-ZnO of a core layer provides a fast transmission channel for electrons, thereby reducing compounding; 3) the TiO2 material of a shell layer can be used for improving the open-circuit voltage and fill factor of a cell; and 4) near-infrared light can be effectively converted to visible light by utilizing the infrared up-conversion material and then be effectively absorbed by dye.

Description

A kind of new dye sensitization solar battery photoanode
Technical field
The present invention relates to based on one dimension ordered nano ZnO/TiO 2The dye-sensitized solar cells laminated photo-anode of nucleocapsid structure and infrared up-conversion luminous material, it can be applied to dye-sensitized solar cells.
Background technology
The core----light anode of the opto-electronic conversion in the further investigation dye-sensitized solar cells, significant for the photoelectric conversion efficiency that improves dye-sensitized solar cells.The factor of restriction light anode photoelectric conversion efficiency has many-side, but the factor of following two aspects can not be ignored: 1. 50% the near infrared light of accounting in the solar spectrum is not taken full advantage of by the light anode; 2. how for electronics provides the fast transport passage, and then reduce recombination probability.
Based on above 2 deficiencies, proposed to utilize one dimension ordered nano ZnO/TiO 2The laminated photo-anode of nucleocapsid structure and infrared up-conversion luminous material improves the efficient of dye-sensitized solar cells.The light anode of this structure has following advantage: 1. take full advantage of TiO 2The photovoltaic property that material is good; 2. stratum nucleare one dimension ordered nano ZnO provides the passage of electronics fast transport, has reduced compound; 3. shell TiO 2Material can improve open circuit voltage and the fill factor, curve factor of battery; 4. utilize infrared up-conversion material effectively to convert near infrared light to visible light, and then effectively absorbed by dyestuff.
Summary of the invention
The objective of the invention is to provide for dye-sensitized solar cells a kind of light anode of high-photoelectric transformation efficiency
Another object of the present invention is that the making for dye-sensitized solar cells light anode provides a kind of new thinking.
According to smooth anode construction of the present invention, the method for its preparation comprises:
(1) glass substrate that the ITO conducting film is arranged in growth prepares the layer of ZnO nano thin-film with the method for ullrasonic spraying thermal decomposition
(2) at ZnO nano film Hydrothermal Growth stratum nucleare one dimension ordered nano ZnO
(3) at stratum nucleare one dimension ordered nano ZnO Hydrothermal Growth shell TiO 2
(4) hydro thermal method prepares infrared up-conversion luminous material Er 3+, Yb 3+: NaYF 4
(5) on nucleocapsid structure, prepare TiO with spin-coating method 2And the THIN COMPOSITE rete of infrared up-conversion luminous material
The present invention takes full advantage of one dimension ordered nano ZnO/TiO 2The advantage of nucleocapsid structure and infrared up-conversion luminous material has reduced preparation cost, simplifies preparation technology, reduces the preparation difficulty, adopts novel structure, has realized the raising of light anode photoelectric conversion efficiency.
Description of drawings
Based on one dimension ordered nano ZnO/TiO 2The dye-sensitized solar cells laminated photo-anode structure chart of nucleocapsid structure and infrared up-conversion luminous material
Among the figure: transparent glass substrate 1, nesa coating ITO2, ZnO nano thin layer 3, stratum nucleare one dimension ordered nano ZnO4, shell/TiO 25, TiO 2And the THIN COMPOSITE rete 6 of infrared up-conversion luminous material.
Embodiment
As shown in the figure, have in growth on the glass substrate 1 of nesa coating ITO2 with ultrasonic spray pyrolysis growth layer of ZnO nanometer thin rete 3 (about 50nm), the temperature in the ullrasonic spraying thermal decomposition growth course remains on 300 ℃.The square resistance of ITO is 50 Ω/, and the transmitance of ITO electro-conductive glass is greater than 85%,
ZnO4 is standby with the hydro-thermal legal system for stratum nucleare one dimension ordered nano, zinc acetate is placed in the lidded container that can screw, to wherein injecting deionized water, and by means of ultrasonic it is fully dissolved, then in solution, splash into ammoniacal liquor, and constantly shake, when solution becomes is clarified, stop to inject ammoniacal liquor.Afterwards growth there is the ito glass sheet of ZnO nano stratum granulosum (about 50nm) vertically to put on the support of container, and lid is tightened.At last container being put into temperature is 95 ℃ baking oven, and continuous heating.Then container is taken out, in air, cool off.Cooled sample is taken out, and repeatedly clean with deionized water, until the surface does not have residue.In preparation process, need in conjunction with preparation condition, make stratum nucleare one dimension ordered nano ZnO4 as far as possible perpendicular to the substrate growth, be conducive to like this carrying out of follow-up making step.In preparation process, note also the consumption of selecting zinc acetate, the consumption of ammoniacal liquor and the time of in baking oven, heating.
Shell/TiO 2The 5th, standby with the hydro-thermal legal system, in 95 ℃ water-bath, by the mode of catalyst Hydrolysis of Titanium hydrochlorate, ZnO4 deposits shell/TiO at stratum nucleare one dimension ordered nano 25, in preparation process, want the kind of attentional selection catalyst, the concentration of solution and the time of reaction, help like this to control shell/TiO 25 thickness, pattern and structure.
Infrared up-conversion luminous material Er 3+, Yb 3+: NaYF 4Be standby with the hydro-thermal legal system, in preparation process, will note the selection of doping content, annealing temperature and particle size size, help like this to obtain suitable emission spectrum.The utilizing emitted light of the infrared up-conversion material of preparation is wanted and can effectively be absorbed by dyestuff.
TiO 2And the preparation of the THIN COMPOSITE rete 6 usefulness spin-coating methods of infrared up-conversion luminous material, according to the different-thickness of THIN COMPOSITE rete, select different rotating speed and TiO 2And the concentration of infrared up-conversion luminous material mixed slurry, mixed slurry is spun on the nucleocapsid structure, and then puts into high temperature furnace roasting (temperature is less than 300 ℃).
The invention is not restricted to the embodiments described, can by changing the kind of dyestuff, prepare the infrared up-conversion luminous material of different emission spectrum, one dimension ordered nano ZnO (4)/TiO 2(5) nucleocapsid structure, TiO 2And the preparation method of the THIN COMPOSITE rete 6 of infrared up-conversion luminous material, also can there be other method available.

Claims (2)

1. one kind based on one dimension ordered nano ZnO/TiO 2The dye-sensitized solar cells laminated photo-anode of nucleocapsid structure and infrared up-conversion luminous material, this anode comprises: nesa coating ITO (2), transparent glass substrate (1), ZnO nano thin layer (3), one dimension ordered nano ZnO (4)/TiO 2(5) nucleocapsid structure and TiO 2And the laminated film (6) of infrared up-conversion luminous material, its production order is for having transparent glass substrate (1) the growth ZnO nano thin layer (3) of nesa coating ITO (2), growth of one-dimensional ordered nano ZnO (4)/TiO on the ZnO nano thin layer in growth 2(5) nucleocapsid structure prepares one deck TiO at last 2And the laminated film (6) of infrared up-conversion luminous material.
2. dye-sensitized solar cells laminated photo-anode according to claim 1 is characterized in that the luminous of infrared up-conversion luminous material can effectively be absorbed by dyestuff.
CN 200910230946 2009-11-27 2009-11-27 Novel dye-sensitized solar cell photoanode Expired - Fee Related CN102082031B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102496485B (en) * 2011-12-06 2013-07-17 浙江理工大学 Method for improving firmness of combination of dye-sensitized cell nanometer fibrous membrane and conductive glass
CN102496479B (en) * 2011-12-06 2013-07-17 浙江理工大学 Method for preparing titanium dioxide (TiO2)/niobium pentoxide (Nb2O5) core-shell structure nano-fiber film for dye-sensitized solar cell
CN102496471B (en) * 2011-12-06 2013-07-17 浙江理工大学 Method for preparing titanium dioxide-zinc oxide nuclear shell structure nanometer fiber membrane for dye sensitized battery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101224418A (en) * 2008-02-15 2008-07-23 哈尔滨工业大学 Preparing method of core-shell TiO2/ZnO photocatalyst and applications thereof
CN101515508A (en) * 2009-03-24 2009-08-26 彩虹集团公司 Dye-sensitization solar battery with up-conversion material signal enhancement layer
CN101567270A (en) * 2009-05-08 2009-10-28 上海大学 Method for preparing meso-porous ZnO/TiO* composite film with high zinc content

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101224418A (en) * 2008-02-15 2008-07-23 哈尔滨工业大学 Preparing method of core-shell TiO2/ZnO photocatalyst and applications thereof
CN101515508A (en) * 2009-03-24 2009-08-26 彩虹集团公司 Dye-sensitization solar battery with up-conversion material signal enhancement layer
CN101567270A (en) * 2009-05-08 2009-10-28 上海大学 Method for preparing meso-porous ZnO/TiO* composite film with high zinc content

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