CN110112296A - A kind of preparation method of large area perovskite solar battery - Google Patents

A kind of preparation method of large area perovskite solar battery Download PDF

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CN110112296A
CN110112296A CN201910230452.1A CN201910230452A CN110112296A CN 110112296 A CN110112296 A CN 110112296A CN 201910230452 A CN201910230452 A CN 201910230452A CN 110112296 A CN110112296 A CN 110112296A
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solar battery
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perovskite solar
large area
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陈浩
唐泽国
张倩
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Beijing Hongtai Innovation Technology Co Ltd
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/10—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation comprising heterojunctions between organic semiconductors and inorganic semiconductors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
    • H10K30/80—Constructional details
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
    • H10K71/10—Deposition of organic active material
    • H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
    • 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
    • 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 present invention provides a kind of preparation methods of large area perovskite solar battery, specifically include and prepare electron transfer layer and hole transmission layer using knife coating, prepare perovskite absorbed layer using the method scratched afterwards is first sprayed.The mode of blade coating prepares electron transfer layer and hole transmission layer, can guarantee good film quality, provides basic platform for calcium titanium ore bed, realizes the good combination between perovskite absorbed layer and electron transfer layer, between perovskite absorbed layer and hole transmission layer；It is prepared that calcium titanium ore bed uniform ground, surface defect substantially reduce first to spray the method scratched afterwards, improving to the efficiency of perovskite solar battery has very strong gain effect；Preparation method simple possible is scratched and sprays and to obtain, it is relatively low to equipment requirement, it can be applied to the preparation of large area perovskite solar battery；Material can be made full use of, to the full extent save the cost, realize green production.

Description

A kind of preparation method of large area perovskite solar battery
Technical field
The present invention relates to solar-photovoltaic technology field more particularly to a kind of preparations of large area perovskite solar battery Method.
Background technique
Perovskite solar battery is using the organic-metallic halide with perovskite structure as core light absorption, light Electricity conversion, photo-generated carrier conveying material solar battery, it is high, at low cost with photoelectric conversion efficiency, preparation simply etc. Prominent advantage becomes the research hotspot of current solar battery.
Perovskite solar battery is usually by transparency conducting layer, electron transfer layer, perovskite absorbed layer, hole transmission layer It is constituted with back electrode layer, preparation method mainly includes liquid phase method, vapor phase method, gas phase auxiliary liquid phase method and spin-coating method.In reality The preparation process of liquid phase method, vapor phase method and gas phase auxiliary liquid phase method is complex in research, and related equipment is many and diverse, obtains Film defect is more, so that prepared perovskite solar battery overall performance is bad；Spin-coating method is because its quality of forming film is high, film forming Thickness, internal structure and surface topography better performances, convenient for control, and the features such as favorable repeatability, in the research in laboratory Dominant position is occupied, but spin-coating method is only applicable to lesser substrate, and waste of material rate is higher, large area device can not be applied to The preparation of part limits the industrialized development of perovskite solar battery.
CN105655489A discloses a kind of method based on spraying process preparation large area perovskite solar battery, adopts Electron transfer layer is prepared with spray coating method, continuous spray method prepares perovskite absorbed layer, spray coating method prepares hole transmission layer and back electricity Pole layer, realizes the preparation of large area perovskite solar battery.But using each film prepared by this method of continuous spray Layer, roughness is higher, hole easy to form, after forming battery, is easy to produce short circuit phenomenon.
What CN109216548A disclosed a kind of perovskite solar battery scrapes coating preparation method, using in conductive substrates Prepare hole transmission layer, alumina layer, indium sulphur-perovskite composite layer, the method for electron transfer layer prepares perovskite solar energy Battery, wherein knife coating simple process, low for equipment requirements, can realize green production, and can be used soft with save the cost Property substrate replace traditional glass substrate, realize the flexibility of perovskite battery；But calcium titanium ore bed is being prepared using knife coating When, there can be PbI2Excessive problem is remained, undesirable influence is caused on the formation of perovskite.
Summary of the invention
For the above-mentioned problems in the prior art, the present invention is intended to provide a kind of simple and effective blade coating-spraying knot The method of conjunction prepares perovskite solar battery, solves and merely sprays electron transfer layer and hole transmission layer in the prior art The problem of caused film layer roughness is high, hole easy to form, causes battery short circuit, and merely knife coating prepares calcium titanium There are PbI when ore bed2Excessive problem is remained, and can be applied to the preparation of large area perovskite solar battery, it is made Standby each film layer even uniform, improves the efficiency of large area perovskite battery.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of preparation method of large area perovskite solar battery, the method includes preparing electronics using knife coating to pass Defeated layer and hole transmission layer prepare perovskite absorbed layer using the method scratched afterwards is first sprayed.
Optionally, the preparation step of the perovskite absorbed layer are as follows:
PbI is sprayed on the electron transfer layer or the hole transmission layer2Solution obtains PbI2Film layer；In the iodine Change the mixed solution for scratching FAI/MACl/MABr on thin film lead layer, obtains perovskite absorbed layer.
Optionally, the PbI2The concentration of solution is 1.13mol/L-1.53mol/L.
Optionally, the PbI2Film layer with a thickness of 150nm-250nm.
Optionally, the perovskite absorbed layer with a thickness of 300nm-400nm.
Optionally, the material of the electron transfer layer is SnO2。
Optionally, the electron transfer layer with a thickness of 20nm-50nm.
Optionally, the material of the hole transmission layer is Spiro-OMeTAD or PTAA.
Optionally, the hole transmission layer with a thickness of 150nm-250nm.
Optionally, the perovskite solar battery is formal or transconfiguration.
Compared with prior art, the invention has the benefit that
1) present invention prepares electron transfer layer and hole transmission layer by the way of blade coating, can be effectively prevented from simple spray Film roughness caused by applying is excessive, hole easy to form, with perovskite battery ining conjunction with after easily short-circuit problem；And it can protect Good film quality is demonstrate,proved, provides basic platform for calcium titanium ore bed, is realized between perovskite absorbed layer and electron transfer layer, calcium titanium Good combination between mine absorbed layer and hole transmission layer, to guarantee battery efficiency.
2) present invention use first sprays the method scratched afterwards and prepares calcium titanium ore bed, first sprays PbI2Layer, makes it have higher Roughness, then when scratching FAI/MACl/MABr mixed solution, it is ensured that solution adequately immerses, and keeps reaction more complete, subtracts Few PbI2Residual, to reduce the adverse effect to calcium titanium ore bed；Smooth, the surface using even film layer prepared by the method Defect substantially reduces, and improving to the efficiency of perovskite solar battery has very strong gain effect.
3) present invention prepares perovskite solar battery using the method that blade coating and spraying combine, and preparation method simply may be used Row, it is relatively low to equipment requirement, it can be applied to the preparation of large area perovskite solar battery；Blade coating and spraying can make full use of Material, save the cost, realizes green production to the full extent.
Detailed description of the invention
Fig. 1 is the formal structure figure of the perovskite solar battery of the embodiment of the present invention.
Fig. 2 is the transconfiguration figure of the perovskite solar battery of the embodiment of the present invention.
Specific embodiment
Clear, complete description is carried out to technical solution of the present invention below in conjunction with embodiment.
A kind of preparation method of large area perovskite solar battery provided by the present invention is using knife coating preparation electricity Sub- transport layer and hole transmission layer prepare perovskite absorbed layer using the method scratched afterwards is first sprayed.
The preparation step of perovskite absorbed layer are as follows: spray PbI on electron transfer layer or hole transmission layer2Solution obtains Lead iodide films layer；The mixed solution that FAI/MACl/MABr is scratched on lead iodide films layer, obtains perovskite absorbed layer.
Wherein perovskite absorbed layer is using first spraying lead iodide (PbI2) solution, annealing, formation PbI2Film layer；Exist again PbI2FAI/MACl/MABr (carbonamidine ion (FA) and methylamine ion (MA)) mixed solution is scratched in film layer, annealing obtains calcium Titanium ore layer.PbI is prepared using spray coating method2Film layer can make it have higher roughness, then scratch FAI/MACl/MABr and mix When closing solution, it is ensured that solution adequately immerses, and keeps reaction more complete, reduces PbI2Residual, to reduce to calcium titanium The adverse effect of ore bed；Smooth using even film layer prepared by the method, surface defect substantially reduces, to perovskite solar-electricity The efficiency in pond, which improves, has very strong gain effect.
PbI2Solution concentration control in 1.13mol/L-1.53mol/L, in this concentration range, the viscosity of solution is suitable In, conducive to the progress of spraying, obtained film flatness is more preferable；PbI is used as using N,N-dimethylformamide (DMF)2It is molten Agent guarantees PbI2Good dissolubility；The thickness control of film layer is in 150-250nm, when the film layer is too thick, is easy to cause anti- Answer insufficient, residual PbI2Solution, generating adverse effect to calcium titanium ore bed will affect finally if the film layer is too thin to calcium The gain effect of titanium ore battery efficiency.
The thickness that perovskite absorbs composite layer needs to can be only achieved higher transfer efficiency in a certain range, increases thickness The transmission of light is advantageously reduced, to increase to absorptivity, to increase short circuit current；But with the increase of thickness, electronics Transmission path also will increase, and also will lead to electronics and is increased in transmission process by compound probability, so as to cause open-circuit voltage Reduce, therefore the thickness of perovskite absorbed layer needs to control in a certain range, so perovskite is absorbed composite layer by the present invention Thickness be set as 300-400nm.
The material of electron transfer layer is tin oxide (SnO2), preparation method, can be at 150 DEG C using tin oxide using blade coating Low-temperature annealing prepares electron transfer layer, and this method can carry out on a flexible substrate, expands the application range of perovskite battery； Electron transfer layer is prepared using knife coating, it is excessive to be effectively prevented from film roughness caused by simple spraying, easy to form Hole, in conjunction with perovskite battery after easily short circuit problem；It can guarantee good film quality, provide basis for calcium titanium ore bed Platform realizes the good combination between calcium titanium ore bed and electron transfer layer, to guarantee battery efficiency.The thickness of electron transfer layer Control is in 20-50nm, and when blocked up to prevent electron transfer layer, the path of electron-transport increases, and influences photoelectric conversion efficiency.
The material of hole transmission layer uses 2,2 ', 7,7 '-four [N, N- bis- (4- methoxyphenyl) amino] -9,9 '-spiral shells two Fluorenes (Spiro-OMeTAD) or poly- [bis- (4- phenyl) (2,4,6- trimethylphenyl) amine] (PTAA), thickness control is in 150nm- The hole transport tunic of 250nm, knife coating preparation are smooth, and defect is few, can improve photoelectricity effectively in conjunction with perovskite absorbed layer Transfer efficiency.
A kind of preparation method of large area perovskite solar battery provided by the present invention is suitable for perovskite solar energy The formal and transconfiguration of battery, in formal structure, specific preparation process is as follows:
1) electron transfer layer is scratched over transparent conductive layer；2) PbI is first sprayed on the electron transport layer2Solution, annealing, obtains To PbI2Film layer, then in PbI2FAI/MACl/MABr mixed solution is scratched in film layer, annealing obtains perovskite absorbed layer； 3) hole transmission layer is scratched on perovskite absorbed layer；4) back electrode layer is prepared on the hole transport layer.
In trans- solar battery structure, specific preparation step is as follows:
1) hole transmission layer is scratched over transparent conductive layer；2) PbI is first sprayed on the hole transport layer2Solution, annealing, obtains To PbI2Film layer, then in PbI2FAI/MACl/MABr mixed solution is scratched in film layer, annealing obtains perovskite absorbed layer； 3) electron transfer layer is scratched on perovskite absorbed layer；4) back electrode layer is prepared on the electron transport layer.
The optional fluorine-doped tin oxide (FTO) and tin indium oxide (ITO) of transparency conducting layer, film thickness 50nm-3000nm；Back Electrode layer can be selected golden (Au), and preparation method is vapor deposition or magnetron sputtering, with a thickness of 50-200nm.
Specific experiment step or condition person are not specified in embodiment, according to the literature in the art described routine experiment The operation of step or condition can carry out.Reagents or instruments used without specified manufacturer, being can be by commercially available acquisition Conventional reagent product.
Embodiment 1
In the formal structure of perovskite solar battery as shown in Figure 1, it is disposed with transparency conducting layer, electron-transport Layer, perovskite absorbed layer, hole transmission layer and back electrode layer, it is specific the preparation method is as follows:
1) SnO is scratched on the transparent conductive layer of 25cm × 25cm2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electronics Transport layer；
2) perovskite absorbed layer is prepared using the technique that blade coating and spraying combine on the electron transport layer: in electron transfer layer Upper spraying concentration is 1.15mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；? PbI2FAI/MACl/MABr mixed solution is added dropwise in film layer, scratches mixed liquor, 150 DEG C of annealing obtain with a thickness of 300nm's Calcium titanium ore bed；
3) Spiro-OMeTAD is scratched on preparing calcium titanium ore bed, obtains the hole transmission layer with a thickness of 150nm；
4) gold electrode layer is deposited, on the hole transport layer with a thickness of 80nm.
Embodiment 2
In the formal structure of perovskite solar battery as shown in Figure 1, it is disposed with transparency conducting layer, electron-transport Layer, perovskite absorbed layer, hole transmission layer and back electrode layer, it is specific the preparation method is as follows:
1) SnO is scratched on the transparent conductive layer of 25cm × 25cm2, 150 DEG C are annealed, and are obtained with a thickness of 30nm electronics Transport layer；
2) perovskite absorbed layer is prepared using the technique that blade coating and spraying combine on the electron transport layer: in electron transfer layer Upper spraying concentration is 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 200nm2Film layer；? PbI2FAI/MACl/MABr mixed solution is added dropwise in film layer, scratches mixed liquor, 150 DEG C of annealing obtain with a thickness of 350nm's Calcium titanium ore bed；
3) Spiro-OMeTAD is scratched on preparing calcium titanium ore bed, obtains the hole transmission layer with a thickness of 200nm；
4) gold electrode layer is deposited, on the hole transport layer with a thickness of 80nm.
Embodiment 3
In the formal structure of perovskite solar battery as shown in Figure 1, it is disposed with transparency conducting layer, electron-transport Layer, perovskite absorbed layer, hole transmission layer and back electrode layer, it is specific the preparation method is as follows:
1) SnO is scratched on the transparent conductive layer of 25cm × 25cm2, 150 DEG C are annealed, and are obtained with a thickness of 50nm electronics Transport layer；
2) perovskite absorbed layer is prepared using the technique that blade coating and spraying combine on the electron transport layer: in electron transfer layer Upper spraying concentration is 1.5mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 250nm2Film layer；? PbI2FAI/MACl/MABr mixed solution is added dropwise in film layer, scratches mixed liquor, 150 DEG C of annealing obtain with a thickness of 400nm's Calcium titanium ore bed；
3) Spiro-OMeTAD is scratched on preparing calcium titanium ore bed, obtains the hole transmission layer with a thickness of 250nm；
4) gold electrode layer is deposited, on the hole transport layer with a thickness of 80nm.
Embodiment 4
In the formal structure of perovskite solar battery as shown in Figure 1, it is disposed with transparency conducting layer, electron-transport Layer, perovskite absorbed layer, hole transmission layer and back electrode layer, it is specific the preparation method is as follows:
1) SnO is scratched on the FTO transparency conducting layer of 25cm × 25cm2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electronics Transport layer；
2) perovskite absorbed layer is prepared using the technique that blade coating and spraying combine on the electron transport layer: in electron transfer layer Upper spraying concentration is 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；? PbI2FAI/MACl/MABr mixed solution is added dropwise in film layer, scratches mixed liquor, 150 DEG C of annealing obtain with a thickness of 300nm's Calcium titanium ore bed；
3) PTAA is scratched on preparing calcium titanium ore bed, obtains the hole transmission layer with a thickness of 150nm；
4) gold electrode layer is deposited, on the hole transport layer with a thickness of 80nm.
Embodiment 5
In the transconfiguration of perovskite solar battery as shown in Figure 2, it is disposed with transparency conducting layer, hole transport Layer, perovskite absorbed layer, electron transfer layer and back electrode layer, it is specific the preparation method is as follows:
1) PTAA is scratched on the transparent conductive layer of 25cm × 25cm, obtains the hole transmission layer with a thickness of 150nm；
2) perovskite absorbed layer is prepared using the technique that blade coating and spraying combine on the hole transport layer: in electron transfer layer Upper spraying concentration is 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；? PbI2FAI/MACl/MABr mixed solution is added dropwise in film layer, scratches mixed liquor, 150 DEG C of annealing obtain with a thickness of 300nm's Calcium titanium ore bed；
3) SnO is scratched on preparing calcium titanium ore bed2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electron transfer layer；
4) gold electrode layer is deposited, on the electron transport layer with a thickness of 80nm.
Comparative example 1
In the formal structure of perovskite solar battery as shown in Figure 1, it is disposed with transparency conducting layer, electron-transport Layer, perovskite absorbed layer, hole transmission layer and back electrode layer, it is specific the preparation method is as follows:
1) SnO is scratched on the transparent conductive layer of 25cm × 25cm2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electronics Transport layer；
2) use knife coating to prepare perovskite absorbed layer on the electron transport layer: on the electron transport layer scratch concentration for 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；In PbI2It is dripped in film layer Add FAI/MACl/MABr mixed solution, scratch mixed liquor, 150 DEG C of annealing obtain the calcium titanium ore bed with a thickness of 300nm；
3) Spiro-OMeTAD is scratched on preparing calcium titanium ore bed, obtains the hole transmission layer with a thickness of 150nm；
4) gold electrode layer is deposited, on the hole transport layer with a thickness of 80nm.
Comparative example 2
In the formal structure of perovskite solar battery as shown in Figure 1, it is disposed with transparency conducting layer, electron-transport Layer, perovskite absorbed layer, hole transmission layer and back electrode layer, it is specific the preparation method is as follows:
1) SnO is sprayed on the transparent conductive layer of 25cm × 25cm2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electronics Transport layer；
2) use spray coating method to prepare perovskite absorbed layer on the electron transport layer: on the electron transport layer spraying concentration for 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；In PbI2It is sprayed in film layer FAI/MACl/MABr mixed solution is applied, 150 DEG C of annealing obtain the calcium titanium ore bed with a thickness of 300nm；
3) Spiro-OMeTAD is sprayed on the calcium titanium ore bed prepared, obtains the hole transmission layer with a thickness of 150nm；
4) gold electrode layer is deposited, on the hole transport layer with a thickness of 80nm.
Comparative example 3
In the transconfiguration of perovskite solar battery as shown in Figure 2, it is disposed with transparency conducting layer, hole transport Layer, perovskite absorbed layer, electron transfer layer and back electrode layer, it is specific the preparation method is as follows:
1) PTAA is scratched on the transparent conductive layer of 25cm × 25cm, obtains the hole transmission layer with a thickness of 150nm；
2) use blade coating to prepare perovskite absorbed layer on the hole transport layer: on the electron transport layer scratch concentration for 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；In PbI2It is dripped in film layer Add FAI/MACl/MABr mixed solution, scratch mixed liquor, 150 DEG C of annealing obtain the calcium titanium ore bed with a thickness of 300nm；
3) SnO is scratched on preparing calcium titanium ore bed2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electron transfer layer；
4) gold electrode layer is deposited, on the electron transport layer with a thickness of 80nm.
Comparative example 4
In the transconfiguration of perovskite solar battery as shown in Figure 2, it is disposed with transparency conducting layer, hole transport Layer, perovskite absorbed layer, electron transfer layer and back electrode layer, it is specific the preparation method is as follows:
1) PTAA is sprayed on the transparent conductive layer of 25cm × 25cm, obtains the hole transmission layer with a thickness of 150nm；
2) use spraying to prepare perovskite absorbed layer on the hole transport layer: on the electron transport layer spraying concentration for 1.3mol/LPbI2DMF solution, anneal at 150 DEG C, obtain the PbI with a thickness of 150nm2Film layer；In PbI2It is sprayed in film layer FAI/MACl/MABr mixed solution is applied, 150 DEG C of annealing obtain the calcium titanium ore bed with a thickness of 300nm；
3) SnO is sprayed on preparing calcium titanium ore bed2, 150 DEG C are annealed, and are obtained with a thickness of 20nm electron transfer layer；
4) gold electrode layer is deposited, on the electron transport layer with a thickness of 80nm.
Experimental result and analysis
The characterization of perovskite solar cell module: perovskite solar battery prepared in embodiment uses Keithley2400SMU, AM 1.5Gsolar irradiation are in 100mW/cm2Light source under carry out device detection, gained Test data is as shown in table 1 below:
Table 1: perovskite solar cell properties characterize table
Jsc(mA cm-2) Voc(V) FF (%) PCE (%)
Embodiment 1 0.70 28.86 59 12.26
Embodiment 2 0.73 29.81 62 13.58
Embodiment 3 0.69 29.60 63 12.87
Embodiment 4 0.69 29.13 58 11.66
Embodiment 5 0.64 30.18 58 11.24
Comparative example 1 0.67 27.91 64 11.59
Comparative example 2 0.74 26.59 56 11.17
Comparative example 3 0.65 27.71 59 10.63
Comparative example 4 0.67 27.46 55 10.12
As it can be seen from table 1 in the formal structure of solar battery, solar-electricity prepared by embodiment 1,2,3,4 The photoelectric conversion efficiency PCE in pond reaches as high as 13.58%, compared to for comparative example 1 and 2, improves at least 17%；In solar energy In the transconfiguration of battery, the PCE of embodiment 5 is 11.24%, it will be apparent that is better than comparative example 3 and comparative example 4；Illustrate using this The even film layer of the preparation of method provided by inventing is smooth, and surface defect substantially reduces, to the efficiency of perovskite solar battery Improving has very strong gain effect.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (10)

1. a kind of preparation method of large area perovskite solar battery, which is characterized in that the method includes using knife coating Electron transfer layer and hole transmission layer are prepared, prepares perovskite absorbed layer using the method scratched afterwards is first sprayed.
2. a kind of preparation method of large area perovskite solar battery according to claim 1, which is characterized in that described The preparation step of perovskite absorbed layer are as follows:
PbI is sprayed on the electron transfer layer or the hole transmission layer2Solution obtains PbI2Film layer；In the lead iodide The mixed solution that FAI/MACl/MABr is scratched in film layer, obtains perovskite absorbed layer.
3. a kind of preparation method of large area perovskite solar battery according to claim 2, which is characterized in that described PbI2The concentration of solution is 1.13mol/L-1.53mol/L.
4. a kind of preparation method of large area perovskite solar battery according to claim 2, which is characterized in that described PbI2Film layer with a thickness of 150nm-250nm.
5. a kind of preparation method of large area perovskite solar battery according to claim 2, which is characterized in that described Perovskite absorbed layer with a thickness of 300nm-400nm.
6. a kind of preparation method of large area perovskite solar battery according to claim 1, which is characterized in that described The material of electron transfer layer is SnO2。
7. a kind of preparation method of large area perovskite solar battery according to claim 1, which is characterized in that described Electron transfer layer with a thickness of 20nm-50nm.
8. a kind of preparation method of large area perovskite solar battery according to claim 1, which is characterized in that described The material of hole transmission layer is Spiro-OMeTAD or PTAA.
9. a kind of preparation method of large area perovskite solar battery according to claim 1, which is characterized in that described Hole transmission layer with a thickness of 150nm-250nm.
10. -9 described in any item a kind of preparation methods of large area perovskite solar battery according to claim 1, feature It is, the perovskite solar battery is formal or transconfiguration.
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CN112242491A (en) * 2020-12-18 2021-01-19 河南工学院 Preparation method of perovskite solar cell without electron transport layer
CN112510157A (en) * 2020-11-12 2021-03-16 深圳市惠能材料科技研发中心(有限合伙) Method for preparing perovskite solar cell in large area through all air
WO2023022667A3 (en) * 2021-08-19 2023-05-11 National University Of Singapore Method of in-line manufacturing semiconductor devices and semiconductor devices thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN112242491A (en) * 2020-12-18 2021-01-19 河南工学院 Preparation method of perovskite solar cell without electron transport layer
CN112242491B (en) * 2020-12-18 2021-03-09 河南工学院 Preparation method of perovskite solar cell without electron transport layer
WO2023022667A3 (en) * 2021-08-19 2023-05-11 National University Of Singapore Method of in-line manufacturing semiconductor devices and semiconductor devices thereof

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