CN104091692A - Solar cell with high conversion efficiency and preparation method thereof - Google Patents

Solar cell with high conversion efficiency and preparation method thereof Download PDF

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Publication number
CN104091692A
CN104091692A CN201410241013.8A CN201410241013A CN104091692A CN 104091692 A CN104091692 A CN 104091692A CN 201410241013 A CN201410241013 A CN 201410241013A CN 104091692 A CN104091692 A CN 104091692A
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China
Prior art keywords
layer
solar cell
transformation efficiency
metal oxide
high transformation
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Pending
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CN201410241013.8A
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Chinese (zh)
Inventor
刘力锋
王逸然
王国辉
韩德栋
王漪
刘晓彦
康晋锋
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Shanghai Research Institute of Microelectronics of Peking University
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Shanghai Research Institute of Microelectronics of Peking University
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Priority to CN201410241013.8A priority Critical patent/CN104091692A/en
Publication of CN104091692A publication Critical patent/CN104091692A/en
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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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses a solar cell with high conversion efficiency and a preparation method thereof. The solar cell with high conversion efficiency comprises a dye-sensitized electric region, a perovskite cell region and a transparent conductive oxide layer (6). The dye-sensitized electric region and the perovskite cell region are connected by the transparent conductive oxide layer (6). According to the solar cell with high conversion efficiency, the efficiency of photoelectric conversion in the dye-sensitized electric region is improved, sol gelatinization in the preparation process is realized, the manufacturing cost is reduced, the preparation process is simplified, and large-area manufacture is facilitated.

Description

Solar cell of a kind of high transformation efficiency and preparation method thereof
Technical field
The present invention relates to solar photoelectric and utilize technical field, more specifically relate to solar cell of a kind of high transformation efficiency and preparation method thereof.
Background technology
The photoelectric conversion efficiency of solar cell is the focus that researcher pays close attention to always.For dye-sensitized nano solar cell, novel device conversion efficiency can reach more than 11%, but researcher thinks and still has room for promotion.The generation of dark current when the principal element that affects dye-sensitized nano conversion efficiency of solar cell is device work, therefore suppressing dark current will become the effective way that promotes dye-sensitized nano solar cell transformation efficiency.
In the generation of photoelectric current, dyestuff receives that optical excitation will be from ground state transition to excitation state, and discharges electronics.Because the lowest unoccupied molecular orbital energy level of dyestuff is higher than metal oxide conduction band current potential, therefore this electronics will inject semiconductor conduction band.The I-ion by electrolyte is carried out reducing/regenerating by dyestuff in oxidation state.But, the generation of I-ion is except being realized electronics regeneration on to electrode by I3-ion, outside I3-+2e-(CB) → 3I-, and also can be with same reaction formation by the Electron absorption of transmitting in nanometer crystal film, cause the generation of dark current, thereby electricity conversion is reduced.This situation will be all can carry out in metallic oxide nanocrystal surface or conductive film substrate.
In prior art, have and dry cell is connected suppress the case that dark current produces with dye-sensitized nano solar cell, but that dry cell is not suitable for solar cell is on the one hand integrated, cause on the other hand the change of production technology yet.
Summary of the invention
(1) technical problem that will solve
The present invention proposes a kind of solar cell of high transformation efficiency, and the solar cell of described high transformation efficiency comprises: dye sensitization electricity region and perovskite cell area.The solar cell of described high transformation efficiency can, in raising solar cell in dye sensitization area light photoelectric transformation efficiency, be realized process compatible, and collosol and gel, reduces manufacturing cost, is beneficial to large area manufacture.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of solar cell of high transformation efficiency, it is characterized in that, the solar cell of described high transformation efficiency comprises: dye sensitization electricity region, perovskite cell area and including transparent conducting oxide layer 6; Described dye sensitization electricity region is connected by described including transparent conducting oxide layer 6 with perovskite cell area; Described dye sensitization electricity region comprises: metal oxide particle layer 3, electrolyte solution layer 4 and the Pt electrode layer 5 of anode member substrate of glass 1, transparent conductive film layer 2, absorbing dye; Described perovskite cell area comprises: metal oxide layer 7, perovskite rete 8, hole transmission layer 9 and anodal parts; Described anodal parts comprise: transparent conductive film layer 10 and anodal substrate of glass 11.
Preferably, described transparent conductive film layer 2 is for mixing stannic oxide layer or other transparent conductive oxide films of F.
Preferably, the metal oxide particle in the metal oxide particle layer 3 of described absorbing dye is TiO2 particle.
Preferably, described metal oxide layer 7 is BaTiO 3layer, ZnO layer or SnO 2layer.
Preferably, described perovskite rete 8 is CH 3nH 3pbI 3layer, CH 3nH 3pbBr 3layer or CH 3nH 3pbCl 3layer.
Preferably, described hole transmission layer 9 is 2,2', 7,7'-tetra-[N, N-diaminourea]-9,9'-spiral shell two fluorenes layers.
Preferably, described transparent conductive film layer 10 contacts the indium oxide layer of mixing Sn for back electrode.
In order to solve the problems of the technologies described above, the invention provides a kind of method of the solar cell of preparing high transformation efficiency, described method is divided into following steps:
The substrate of glass that contains the tin oxide conductive film layer of mixing F is carried out to ultrasonic cleaning;
Substrate of glass after cleaning is dried;
Use sol gel process, mix depositing metal oxide particle layer 3 on the tin oxide conductive film layer of F in substrate of glass, as parts first;
Use sol gel process, in anode member substrate of glass 1, prepare successively transparent conductive film layer 10, hole transmission layer 9, perovskite rete 8, metal oxide layer 7 and including transparent conducting oxide layer 6;
Deposit Pt electrode layer 5 on including transparent conducting oxide layer 6, as parts second;
Two parts first, second are assembled, the metal oxide particle layer 3 of dress note electrolyte solution layer 4 and absorbing dye, and seal.
(3) beneficial effect
The solar cell of high transformation efficiency of the present invention possesses following effect:
(1) perovskite cell area applies bias voltage to dye sensitization electricity region, for dye sensitization region provides electronics supply, strengthened the reduction reaction of I-at the anodal place of its Pt layer, be I3-+2e-(CB) → 3I-, make the I-producing to carry out reducing/regenerating to the dyestuff of excitation state as early as possible, produce more photoelectron, suppressed the dark current of dye sensitization intra-zone, improved electricity conversion.
(2) the full collosol and gelization of perovskite cell area can be combined with the preparation technology in dye-sensitized cell region effectively, has simplified production stage, has reduced cost, is applicable to industrial production, is applicable to large area manufacture.
The solar cell of high transformation efficiency of the present invention is in the time of work, perovskite region applies bias voltage to dye sensitization region, strengthen the injection of the electronics e-to dye sensitization region, thereby at its Pt layer to the reduction reaction of I-strengthened (I3-+2e-(CB) → 3I-), thereby more I-can carry out reducing/regenerating to the dyestuff of excitation state, produces the generation that more photoelectron suppresses dark current.The voltage in dye sensitization region is VDSSC=Vout-V ', and wherein Vout is the output voltage of high transformation efficiency battery, and V ' is the voltage that perovskite region provides.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the solar battery structure schematic diagram of an embodiment of solar cell of a kind of high transformation efficiency according to the present invention and preparation method thereof;
Embodiment
Below in conjunction with Figure of description and embodiment, the specific embodiment of the present invention is described in further detail.Following examples are only for the present invention is described, but can not be used for limiting the scope of the invention.
The invention provides a kind of solar cell of high transformation efficiency, the solar cell of described high transformation efficiency comprises: dye sensitization electricity region, perovskite cell area and including transparent conducting oxide layer 6; Described dye sensitization electricity region is connected by described including transparent conducting oxide layer 6 with perovskite cell area; Described dye sensitization electricity region comprises: metal oxide particle layer 3, electrolyte solution layer 4 and the Pt electrode layer 5 of anode member substrate of glass 1, transparent conductive film layer 2, absorbing dye; Described perovskite cell area comprises: metal oxide layer 7, perovskite rete 8, hole transmission layer 9 and anodal parts; Described anodal parts comprise: transparent conductive film layer 10 and anodal substrate of glass 11.
Described transparent conductive film layer 2 is for mixing stannic oxide layer or other transparent conductive oxide films of F.
Metal oxide particle in the metal oxide particle layer 3 of described absorbing dye is TiO2 particle.
Described metal oxide layer 7 is BaTiO 3layer, ZnO layer or SnO 2layer.
Described perovskite rete 8 is CH 3nH 3pbI 3layer, CH 3nH 3pbBr 3layer or CH 3nH 3pbCl 3layer.
Described hole transmission layer 9 is 2,2', 7,7'-tetra-[N, N-diaminourea]-9,9'-spiral shell two fluorenes layers.
Described transparent conductive film layer (10) contacts the indium oxide layer of mixing Sn for back electrode.
The present invention also provides a kind of method of the solar cell of making high transformation efficiency, and described method is divided into following steps:
The substrate of glass that contains the tin oxide conductive film layer of mixing F is carried out to ultrasonic cleaning;
Substrate of glass after cleaning is dried;
Use sol gel process, mix depositing metal oxide particle layer 3 on the tin oxide conductive film layer of F in substrate of glass, as parts first;
Use sol gel process, in anode member substrate of glass 1, prepare successively transparent conductive film layer 10, hole transmission layer 9, perovskite rete 8, metal oxide layer 7 and including transparent conducting oxide layer 6;
Deposit Pt electrode layer 5 on including transparent conducting oxide layer 6, as parts second;
Two parts first, second are assembled, the metal oxide particle layer 3 of dress note electrolyte solution layer 4 and absorbing dye, and seal.
Above execution mode is only for the present invention is described, but not limitation of the present invention.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is carried out to various combinations, revises or is equal to replacement, do not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.

Claims (8)

1. a solar cell for high transformation efficiency, is characterized in that, the solar cell of described high transformation efficiency comprises: dye sensitization electricity region, perovskite cell area and including transparent conducting oxide layer (6); Described dye sensitization electricity region is connected by described including transparent conducting oxide layer (6) with perovskite cell area; Described dye sensitization electricity region comprises: metal oxide particle layer (3), electrolyte solution layer (4) and the Pt electrode layer (5) of anode member substrate of glass (1), transparent conductive film layer (2), absorbing dye; Described perovskite cell area comprises: metal oxide layer (7), perovskite rete (8), hole transmission layer (9) and anodal parts; Described anodal parts comprise: transparent conductive film layer (10) and anodal substrate of glass (11).
2. the solar cell of high transformation efficiency according to claim 1, is characterized in that, described transparent conductive film layer (2) is for mixing stannic oxide layer or other transparent conductive oxide films of F.
3. the solar cell of high transformation efficiency according to claim 2, is characterized in that, the metal oxide particle in the metal oxide particle layer (3) of described absorbing dye is TiO 2particle.
4. the solar cell of high transformation efficiency according to claim 3, is characterized in that, described metal oxide layer (7) is BaTiO 3layer, ZnO layer or SnO 2layer.
5. the solar cell of high transformation efficiency according to claim 4, is characterized in that, described perovskite rete (8) is CH 3nH 3pbI 3layer, CH 3nH 3pbBr 3layer or CH 3nH 3pbCl 3layer.
6. the solar cell of high transformation efficiency according to claim 5, is characterized in that, described hole transmission layer (9) is 2,2', 7,7'-tetra-[N, N-diaminourea]-9,9'-spiral shell two fluorenes layers.
7. the solar cell of high transformation efficiency according to claim 6, is characterized in that, described transparent conductive film layer (10) contacts the indium oxide layer of mixing Sn for back electrode.
8. a method of preparing the solar cell of the high transformation efficiency described in claim 1～7 any one, described method is divided into following steps:
The substrate of glass that contains the tin oxide conductive film layer of mixing F is carried out to ultrasonic cleaning;
Substrate of glass after cleaning is dried;
Use sol gel process, mix depositing metal oxide particle layer (3) on the tin oxide conductive film layer of F in substrate of glass, as parts first;
Use sol gel process, in anode member substrate of glass (1), prepare successively transparent conductive film layer (10), hole transmission layer (9), perovskite rete (8), metal oxide layer (7) and including transparent conducting oxide layer (6);
At the upper deposit Pt electrode layer (5) of including transparent conducting oxide layer (6), as parts second;
Two parts first, second are assembled, the metal oxide particle layer (3) of dress note electrolyte solution layer (4) and absorbing dye, and seal.
CN201410241013.8A 2014-05-30 2014-05-30 Solar cell with high conversion efficiency and preparation method thereof Pending CN104091692A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104409641A (en) * 2014-11-07 2015-03-11 中国科学院青岛生物能源与过程研究所 Novel method for improving uniformity and crystallinity of organic-inorganic perovskite thin film
CN105140398A (en) * 2015-07-02 2015-12-09 南京大学 Back-contact perovskite solar cell

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002231324A (en) * 2001-01-30 2002-08-16 Sumitomo Metal Mining Co Ltd Compound solar battery
CN101510568A (en) * 2009-03-16 2009-08-19 江苏双登集团有限公司 Amorphous silicon/dye sensitization laminated film solar battery and preparation method thereof
CN102157693A (en) * 2010-02-10 2011-08-17 北京大学 Solar battery and manufacturing method thereof
CN102194999A (en) * 2010-03-10 2011-09-21 北京大学 Composite solar battery
CN103400697A (en) * 2013-08-15 2013-11-20 厦门大学 All-solid-state flexible sensitized solar cell and preparation method thereof
CN103700508A (en) * 2013-11-28 2014-04-02 中国科学院等离子体物理研究所 Perovskite oxide counter electrode material for DSSCs (dye sensitized solar cells)

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002231324A (en) * 2001-01-30 2002-08-16 Sumitomo Metal Mining Co Ltd Compound solar battery
CN101510568A (en) * 2009-03-16 2009-08-19 江苏双登集团有限公司 Amorphous silicon/dye sensitization laminated film solar battery and preparation method thereof
CN102157693A (en) * 2010-02-10 2011-08-17 北京大学 Solar battery and manufacturing method thereof
CN102194999A (en) * 2010-03-10 2011-09-21 北京大学 Composite solar battery
CN103400697A (en) * 2013-08-15 2013-11-20 厦门大学 All-solid-state flexible sensitized solar cell and preparation method thereof
CN103700508A (en) * 2013-11-28 2014-04-02 中国科学院等离子体物理研究所 Perovskite oxide counter electrode material for DSSCs (dye sensitized solar cells)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104409641A (en) * 2014-11-07 2015-03-11 中国科学院青岛生物能源与过程研究所 Novel method for improving uniformity and crystallinity of organic-inorganic perovskite thin film
CN105140398A (en) * 2015-07-02 2015-12-09 南京大学 Back-contact perovskite solar cell
CN105140398B (en) * 2015-07-02 2017-07-28 南京大学 A kind of back contacts perovskite solar cell

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Application publication date: 20141008