CN109545973A - It creeps with nanoscale liquid film the preparation method of the silico-calcium titanium ore lamination solar cell and the uniform perovskite thin film of flannelette that increase resistance layer - Google Patents
It creeps with nanoscale liquid film the preparation method of the silico-calcium titanium ore lamination solar cell and the uniform perovskite thin film of flannelette that increase resistance layer Download PDFInfo
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- CN109545973A CN109545973A CN201811418902.1A CN201811418902A CN109545973A CN 109545973 A CN109545973 A CN 109545973A CN 201811418902 A CN201811418902 A CN 201811418902A CN 109545973 A CN109545973 A CN 109545973A
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present invention provides a kind of to creep with nanoscale liquid film and increases the silico-calcium titanium ore lamination solar cell and preparation method thereof of resistance layer, silico-calcium titanium ore lamination solar cell, including crystal silicon solar batteries；The top of crystal silicon solar batteries has the pyramid flannelette of micro-meter scale；The pyramid conical surface of the pyramid flannelette of micro-meter scale is equipped with the protrusion of nanoscale.The present invention forms nanoscale protrusion on the micron order pyramid flannelette of crystal silicon solar batteries；The liquid film that convexes to form of nanoscale creeps and increases resistance layer, the creep speed of liquid film can substantially be slowed down, not to silicon pyramid flannelette carry out polishing polish processing under conditions of, be conducive to the preparation that the uniform profiling perovskite thin film of all standing in the pyramid flannelette substrate of micro-meter scale fluctuating is realized by solwution method, the efficient advantage of silicon solar cell can be kept, can be realized silicon-perovskite both ends lamination solar cell technology that photoelectric conversion efficiency is greater than 35%.
Description
Technical field
The invention belongs to silicon-perovskite lamination solar cell preparation technical fields, in particular to a kind of to have nanometer ruler
Degree liquid film is creeped the preparation method of the silico-calcium titanium ore lamination solar cell and the uniform perovskite thin film of flannelette that increase resistance layer.
Background technique
Perovskite solar battery have incident photon-to-electron conversion efficiency high, preparation process and equipment it is simple it is cheap, using printing
Technique realizes the advantages that industrialization, receives the extensive concern of whole world scientist in recent years.From 2009 for the first time with 3.8%
After incident photon-to-electron conversion efficiency occurs, efficiency is constantly soaring at an unprecedented rate in subsequent 9 years, ends in November, 2018
The peak efficiency authenticated has reached 23.4%.However the photoelectric conversion efficiency of unijunction perovskite solar battery can not be more than
Xiao Keli-Kui Yise limit theory efficiency.Multijunction solar cell, i.e. laminated cell are by the sun energon electricity with different band gap
Pond composition is a kind of mature effective mode for breaking through Xiao Keli-Kui Yise limit theory efficiency, has been widely used for tradition
Silicon, gallium arsenide solar cell.Silicon solar cell is to occupy the maximum mainstream photovoltaic technology of the market share at present.Monocrystalline silicon
Band gap be about 1.1eV, be the sub- battery of ideal narrow band gap.Organic inorganic hybridization perovskite material and full-inorganic perovskite material
Material has the characteristics that band gap is continuously adjusted (1.25~2.0eV).Based on These characteristics, New high-efficient low-cost silicon-perovskite two
Holding stacked solar cell, cascade solar cell is photovoltaic cell technology frontier development and inevitable development direction.
High efficiency commercialization silicon solar cell generallys use pyramid flannelette light trapping structure.Silicon pyramid flannelette rises and falls high
Degree is usually at 1~20 μm, it can effectively increase light capture ability, to improve the short-circuit current density of battery.However, at this
The complicated surface texture structure of kind is difficult to the uniform perovskite film of deposition thickness.Calcium titanium with solwution method deposition thickness less than 1 μm
When mine film, solution gathers in the paddy between " pyramid ", so that being not covered with liquid on pyramidal pinnacle of a pagoda, this be will lead to
Pyramidal apex angle and rib can not be completely covered in final perovskite thin film.This phenomenon will lead to battery short circuit, and then reduce
Perovskite/crystal silicon lamination solar cell photoelectric conversion efficiency.In order to avoid this problem, existing technology is to silion cell
Pyramid flannelette has carried out polishing and has polished processing.However, compared with the silion cell with pyramid flannelette light trapping structure, the silicon sun
Photoelectric conversion efficiency after energy battery polishing can be reduced to about the 50% of original value.Therefore, this technical solution exists as follows not
Foot: first, polishing is carried out to silicon pyramid flannelette and polishes the photoelectric conversion efficiency that processing significantly reduces silicon solar cell；The
Two, increased polishing polishes the production cost that processing improves lamination solar cell, increases process and time, reduces life
Produce efficiency.Therefore, how the uniform profiling perovskite thin film of all standing is prepared in the pyramid flannelette substrate that micro-meter scale rises and falls
As realization high-efficiency and low-cost silicon-perovskite both ends lamination photovoltaic cell technology core problem.
Summary of the invention
The purpose of the present invention is to provide a kind of to creep with nanoscale liquid film and increases the silico-calcium titanium ore lamination sun of resistance layer
The preparation method of energy battery and the uniform perovskite thin film of flannelette, to solve the above technical problems.
To achieve the goals above, the present invention adopts the following technical scheme:
It creeps with nanoscale liquid film and increases the silico-calcium titanium ore lamination solar cell of resistance layer, including crystal silicon solar electricity
Pond；The top of crystal silicon solar batteries has the pyramid flannelette of micro-meter scale；The pyramid of the pyramid flannelette of micro-meter scale
The conical surface is equipped with the protrusion of nanoscale.
Further, the feature height range of pyramid flannelette is 1~20 μm.
Further, raised feature height range is 15~100nm.
Further, the spacing range between protrusion are as follows: 30~100nm.
Further, the pyramid flannelette of micro-meter scale is equipped with all standing to imitate the uniform perovskite of pyramidal flannelette thin
Film；The uniform perovskite thin film cladding protrusion of flannelette and pyramid flannelette.
Further, the protrusion is silica dioxide granule.
Perovskite thin film is prepared on the silico-calcium titanium ore lamination solar cell for increasing resistance layer creeping with nanoscale liquid film
Method, comprising the following steps:
(1) perovskite precursor sol is configured；
(2) the protrusion spraying of nanoscale: the protrusion for being 15~100nm by feature height range sprays to the crystal silicon sun
Spacing range on the pyramid flannelette of energy battery, between protrusion are as follows: 30~100nm；
(3) the uniform coating of perovskite liquid film: perovskite precursor sol is coated in by the way of banister brush coating
On raised pyramid flannelette, one layer of uniform profiling perovskite liquid film is formed；The thickness of profiling perovskite liquid film is less than gold
The 60% of word tower average characteristics height；
(4) it is evacuated drying: in ventilation-pumping drying equipment, being completed using degassing method at the drying to perovskite liquid film
Reason, so that obtaining uniform all standing imitates pyramid perovskite thin film；
(5) perovskite thin film being dried through pumping the heat treatment of perovskite thin film: is carried out 10 at 100~150 DEG C
The annealing of~120min removes residual solvent and crystal grain is made to grow up, finally obtains the imitative pyramid of even compact all standing
The uniform perovskite thin film of shape black flannelette.
Further, the chemical general formula of solute is ABX in perovskite precursor sol3, wherein A is selected from alkylamine, alkali gold
Belong to or combinations thereof, B is selected from lead, tin or combinations thereof, and X is selected from Br, Cl, I or combinations thereof.
Quite for the prior art, the present invention adopts the following technical scheme:
(1) present invention forms nanoscale protrusion on the micron order pyramid flannelette of crystal silicon solar batteries；Nanometer ruler
The liquid film that convexes to form of degree creeps and increases resistance layer, can substantially slow down the creep speed of liquid film, is not carrying out to silicon pyramid flannelette
Under conditions of polishing polishes processing, be conducive to realize all standing in the pyramid flannelette substrate of micro-meter scale fluctuating by solwution method
The preparation of uniform profiling perovskite thin film, can keep the efficient advantage of silicon solar cell, can be realized photoelectric conversion effect
Rate is greater than 35% silicon-perovskite both ends lamination solar cell technology；
(2) the invention avoids polish to silicon pyramid flannelette polishing processing, silicon-perovskite lamination sun is reduced
The production cost of energy battery, reduces waste of time, improves actual production speed.
Detailed description of the invention
Fig. 1 is the silico-calcium titanium ore lamination solar cell structural schematic diagram creeped with nanoscale liquid film and increase resistance layer.
Wherein, 1 be nanoscale protrusion, 2 be the pyramid flannelette of micro-meter scale, and 3 be crystal silicon solar batteries.
Specific embodiment
Implementation method of the present invention is described further in the following with reference to the drawings and specific embodiments.
It please refers to described in Fig. 1, the present invention provides a kind of creep with nanoscale liquid film and increases the silico-calcium titanium ore lamination of resistance layer
Solar battery, including crystal silicon solar batteries 3；The top of crystal silicon solar batteries has the pyramid flannelette 2 of micro-meter scale；
The pyramid conical surface of the pyramid flannelette 2 of micro-meter scale is equipped with the protrusion 1 of nanoscale.The pyramid flannelette 2 of micro-meter scale
On be formed with all standing and imitate the uniform perovskite thin film of pyramidal flannelette (not shown).Uniform perovskite thin film cladding protrusion 1
With pyramid flannelette 2.
The feature height range of pyramid flannelette 2 is 1~20 μm.
The feature height range of protrusion 1 is 15~100nm.
Spacing range between protrusion are as follows: 30~100nm.
Embodiment 1
The present embodiment is a kind of to be made on the silico-calcium titanium ore lamination solar cell for increasing resistance layer creeping with nanoscale liquid film
The method of standby perovskite thin film, comprising:
(1) preparation of perovskite precursor sol: using DMF as solvent, PbI2And CH3NH3I is solute, and it is molten to prepare perovskite
Glue, CH in perovskite colloidal sol3NH3PbI3Mass percentage concentration be 35%.
(2) the protrusion spraying of nanoscale: the protrusion for being 15~100nm by feature height range sprays to the crystal silicon sun
Spacing range on the pyramid flannelette 2 of energy battery 3, between protrusion are as follows: 30~100nm；
(3) the uniform coating of perovskite liquid film: perovskite precursor sol is coated in by the way of banister brush coating
On raised pyramid flannelette, one layer of flaxen uniform profiling perovskite liquid film with a thickness of 2 μm is formed；Profiling calcium titanium
The thickness of mine liquid film is less than the 60% of pyramid average characteristics height；
(4) it is evacuated drying: in ventilation-pumping drying equipment, being completed using degassing method at the drying to perovskite liquid film
Reason (pumping chamber air pressure: 1500Pa is evacuated duration: 5s), imitates pyramid calcium to obtain with a thickness of the uniform all standing of 200nm
Titanium ore film；
(5) perovskite thin film being dried through pumping the heat treatment of perovskite thin film: is carried out 120min's at 100 DEG C
Annealing removes residual solvent and crystal grain is made to grow up, finally obtains the imitative pyramid black flannelette of even compact all standing
Uniform perovskite thin film.
Embodiment 2
The present embodiment is a kind of to be made on the silico-calcium titanium ore lamination solar cell for increasing resistance layer creeping with nanoscale liquid film
The method of standby perovskite thin film, comprising:
(1) preparation of perovskite precursor sol: using DMF as solvent, PbI2And CH3NH3I is solute, and it is molten to prepare perovskite
Glue, CH in perovskite colloidal sol3NH3PbI3Mass percentage concentration be 40%.
(2) the protrusion spraying of nanoscale: the protrusion for being 15~100nm by feature height range sprays to the crystal silicon sun
Spacing range on the pyramid flannelette 2 of energy battery 3, between protrusion are as follows: 30~100nm；
(3) the uniform coating of perovskite liquid film: perovskite precursor sol is coated in by the way of banister brush coating
On raised pyramid flannelette, one layer of flaxen uniform profiling perovskite liquid film with a thickness of 2 μm is formed；Profiling calcium titanium
The thickness of mine liquid film is less than the 60% of pyramid average characteristics height；
(4) it is evacuated drying: in ventilation-pumping drying equipment, being completed using degassing method at the drying to perovskite liquid film
Reason (pumping chamber air pressure: 1200Pa is evacuated duration: 5s), imitates pyramid calcium to obtain with a thickness of the uniform all standing of 200nm
Titanium ore film；
(5) perovskite thin film being dried through pumping the heat treatment of perovskite thin film: is carried out 30min's at 150 DEG C
Annealing removes residual solvent and crystal grain is made to grow up, finally obtains the imitative pyramid black flannelette of even compact all standing
Uniform perovskite thin film.
Embodiment 3
The present embodiment is a kind of to be made on the silico-calcium titanium ore lamination solar cell for increasing resistance layer creeping with nanoscale liquid film
The method of standby perovskite thin film, comprising:
(1) preparation of perovskite precursor sol: using GBL as solvent, PbI2It is solute with FAI, prepares perovskite colloidal sol,
FAPbI in perovskite colloidal sol3Mass percentage concentration be 35%.
(2) the protrusion spraying of nanoscale: the protrusion for being 15~100nm by feature height range sprays to the crystal silicon sun
Spacing range on the pyramid flannelette 2 of energy battery 3, between protrusion are as follows: 30~100nm；
(3) the uniform coating of perovskite liquid film: perovskite precursor sol is coated in by the way of banister brush coating
On raised pyramid flannelette, one layer of flaxen uniform profiling perovskite liquid film with a thickness of 2 μm is formed；Profiling calcium titanium
The thickness of mine liquid film is less than the 60% of pyramid average characteristics height；
(4) it is evacuated drying: in ventilation-pumping drying equipment, being completed using degassing method at the drying to perovskite liquid film
Reason (pumping chamber air pressure: 500Pa is evacuated duration: 5s), imitates pyramid calcium to obtain with a thickness of the uniform all standing of 200nm
Titanium ore film；
(5) perovskite thin film being dried through pumping the heat treatment of perovskite thin film: is carried out 10min's at 120 DEG C
Annealing removes residual solvent and crystal grain is made to grow up, finally obtains the imitative pyramid black flannelette of even compact all standing
Uniform perovskite thin film.
In conclusion the above is only highly preferred embodiment of the present invention, it is all according to claims of the present invention and explanation
Equivalent modifications made by book belong to the range that the invention patent covers.
Claims (8)
1. there is nanoscale liquid film, which to creep, increases the silico-calcium titanium ore lamination solar cell of resistance layer, which is characterized in that including crystal silicon
Solar battery (3)；The top of crystal silicon solar batteries has the pyramid flannelette (2) of micro-meter scale；The golden word of micro-meter scale
The pyramid conical surface of tower flannelette (2) is equipped with the protrusion (1) of nanoscale.
2. according to claim 1 creep with nanoscale liquid film increases the silico-calcium titanium ore lamination solar cell of resistance layer,
It is characterized in that, the feature height range of pyramid flannelette (2) is 1~20 μm.
3. according to claim 1 creep with nanoscale liquid film increases the silico-calcium titanium ore lamination solar cell of resistance layer,
It is characterized in that, the feature height range of raised (1) is 15~100nm.
4. according to claim 1 creep with nanoscale liquid film increases the silico-calcium titanium ore lamination solar cell of resistance layer,
It is characterized in that, the spacing range between protrusion are as follows: 30~100nm.
5. according to claim 1 creep with nanoscale liquid film increases the silico-calcium titanium ore lamination solar cell of resistance layer,
It is characterized in that, the pyramid flannelette (2) of micro-meter scale, which is equipped with all standing, imitates the uniform perovskite thin film of pyramidal flannelette；
The uniform perovskite thin film of flannelette coats raised (1) and pyramid flannelette (2).
6. according to claim 1 creep with nanoscale liquid film increases the silico-calcium titanium ore lamination solar cell of resistance layer,
It is characterized in that, the protrusion is silica dioxide granule.
7. there is nanoscale liquid film to creep on the silico-calcium titanium ore lamination solar cell for increasing resistance layer make as claimed in claim 6
The method of the standby uniform perovskite thin film of flannelette, which comprises the following steps:
(1) perovskite is configured
Precursor sol；
(2) the protrusion spraying of nanoscale: the protrusion for being 15~100nm by feature height range sprays to crystal silicon solar electricity
Spacing range on the pyramid flannelette (2) in pond (3), between protrusion are as follows: 30~100nm；
(3) the uniform coating of perovskite liquid film: being coated in perovskite precursor sol by the way of banister brush coating is had
On the pyramid flannelette of protrusion, one layer of uniform profiling perovskite liquid film is formed；The thickness of profiling perovskite liquid film is less than pyramid
The 60% of average characteristics height；
(4) it is evacuated drying: in ventilation-pumping drying equipment, completing the drying process to perovskite liquid film using degassing method, from
And it obtains uniform all standing and imitates pyramid perovskite thin film；
(5) heat treatment of perovskite thin film: will through pumping be dried perovskite thin film 100~150 DEG C carry out 10~
The annealing of 120min removes residual solvent and crystal grain is made to grow up, finally obtains the imitative pyramid of even compact all standing
The uniform perovskite thin film of black flannelette.
8. method as claimed in claim 7, which is characterized in that the chemical general formula of solute is ABX in perovskite precursor sol3,
Wherein A is selected from alkylamine, alkali metal or combinations thereof, and B is selected from lead, tin or combinations thereof, and X is selected from Br, Cl, I or combinations thereof.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024124611A1 (en) * | 2022-12-13 | 2024-06-20 | 浙江晶科能源有限公司 | Solar cell preparation method, solar cell and laminated solar cell |
| WO2024124610A1 (en) * | 2022-12-13 | 2024-06-20 | 浙江晶科能源有限公司 | Solar cell and laminated solar cell |
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| CN105932161A (en) * | 2016-07-13 | 2016-09-07 | 苏州协鑫集成科技工业应用研究院有限公司 | Laminated solar cell and preparation method thereof |
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Cited By (2)
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| WO2024124611A1 (en) * | 2022-12-13 | 2024-06-20 | 浙江晶科能源有限公司 | Solar cell preparation method, solar cell and laminated solar cell |
| WO2024124610A1 (en) * | 2022-12-13 | 2024-06-20 | 浙江晶科能源有限公司 | Solar cell and laminated solar cell |
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