CN109830602A - A kind of method of ionic liquid assisted microwave synthesis in-situ low-temperature preparation perovskite solar cell electron transfer layer - Google Patents
A kind of method of ionic liquid assisted microwave synthesis in-situ low-temperature preparation perovskite solar cell electron transfer layer Download PDFInfo
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Abstract
The present invention relates to a kind of methods of ionic liquid assisted microwave synthesis in-situ low-temperature preparation perovskite solar cell electron transfer layer, it is characterised in that electron transfer layer carries out in-situ low-temperature synthesis by ionic liquid assisted microwave synthesis method in conductive substrates.The in-situ method is simple, strong operability, reaction temperature is low, the reaction time is short, at low cost, it is environmentally protective, have simultaneously and be not required to high annealing, only dry the features such as can be used directly at 80 DEG C, can get high-purity, of uniform size, high performance titanic oxide electronic transmits layer material.Production technology loss is effectively reduced, the production cycle is shortened and reduces costs, there is higher photoelectric conversion efficiency, be particularly suitable for the preparation of flexible battery.
Description
Technical field
The present invention relates to photovoltaic art, in particular to the side of electron transfer layer is prepared in situ in a kind of ionic liquid assisted microwave synthesis
Method and perovskite solar cell.
Background technique
Developing renewable green energy resource is the effective means for solving current energy crisis and environmental pollution.Solar energy is a kind of
Important cleaning and renewable energy, solar cell are to utilize one of the important means of solar energy.Improve the photoelectricity of solar cell
Transfer efficiency reduces the core topic that cost is photovoltaic art.Perovskite solar cell is as a kind of novel solar cell, certainly
Perovskite material is used in solar cell for the first time within 2009, in the few years in its efficiency from 3.8% in 2009 leap
To 2015 21.0%, at present more than 23%, efficiency has reached commercialized level.Perovskite solar cell is considered as
The most novel solar cell of industrialization strength has broad application prospects and the strong market competitiveness.Perovskite
Solar cell has photoelectric conversion efficiency height, simple process, low in cost, former material as a kind of novel all solid state photovoltaic device
Material enriches, is easy to many advantages, such as being mass produced, and rapidly becomes current international forward position focus research field.
Perovskite solar cell basic structure is usually by conductive substrates, electron transfer layer, (porous layer), perovskite light absorption
Layer, hole transmission layer (spiro-MeOTAD) and metal electrode (usually Au) composition.Wherein electron transfer layer be perovskite too
The important component in positive electricity pond, performance directly affect the photoelectric conversion efficiency of perovskite solar cell.Current electronics passes
Defeated material is usually titanium dioxide, zinc oxide, stannic oxide etc..Above-mentioned material is during preparing electron transfer layer, reaction
Temperature is higher and needs high annealing, and annealing temperature is generally all higher than 200 DEG C, increases the cost of process loss and battery, no
Conducive to large-scale industrial production.
Summary of the invention
It is an object of the invention in view of the deficiency of the prior art, provide a kind of simple method, strong operability,
Low temperature preparation and be not required to high annealing perovskite solar cell electron transfer layer preparation method.The in-situ method has anti-
It answers that temperature is low, the reaction time is short, the features such as being not required to high annealing, is at low cost, can get high-purity, of uniform size, optical property
Good electron transport layer materials.
Solution proposed by the present invention is: a kind of ionic liquid assisted microwave synthesis in-situ low-temperature preparation perovskite solar cell
The method of electron transfer layer, it is characterised in that electron transfer layer carries out original by ionic liquid assisted microwave synthesis method in conductive substrates
Position low temperature synthesis, includes the following steps:
(5) titanium chloride/butyl titanate/titanium fluoride aqueous solution/alcoholic solution and functionalized ion liquid are uniformly mixed；
(6) clean conductive substrates are placed in reaction solution；
(7) reaction solution microwave heating at 50 DEG C -70 DEG C is reacted；
(8) it is obtained after 80 DEG C of dryings after conductive substrates use water, ethyl alcohol to rinse respectively after natural cooling former in conductive substrates
The electron transfer layer of position growth.
The microwave heating reaction time of the present invention is 0-30min.
The present invention uses ionic liquid assisted microwave synthesis method, the fabricated in situ perovskite under 50 DEG C -70 DEG C of cryogenic conditions
Solar cell electron transfer layer can directly obtain after 80 DEG C of dryings in conductive substrates after directly being rinsed with water, ethyl alcohol after reaction
The electron transfer layer of upper growth in situ.The in-situ method is simple, strong operability, reaction temperature is low, the reaction time is short, cost
It is low, while having and being not required to high annealing, only dry the features such as can be used directly at 80 DEG C, it is equal to can get high-purity, size
Even, the good electron transport layer materials of optical property.
Functionalized ion liquid cation of the present invention be selected from imidazoles, pyridines, pyroles, piperidines, pyrazoles,
Triazole type, thiazoles, quaternary ammonium salt, quaternary phosphine salt, guanidine cation；The ionic liquid anion is selected from Cl-、Br-、I-、
BF4 -、PF6 -、CF3COO-、CF3SO3 -、NTf2 -、N(CN)2 -、C(CN)3 -、NCS-、NO3 -、H2PO4 -、HSO4 -、RCOO-、RSO4 -,
Middle R is selected from hydrogen and the alkyl with linear chain or branched chain.
The volume ratio of ionic liquid and solvent of the present invention is 1:40-40:1；
Titanium chloride of the present invention/butyl titanate/titanium fluoride aqueous solution/alcoholic solution concentration is 0.01M-2M.
Alcoholic solution of the present invention is selected from one of methanol, ethyl alcohol, propyl alcohol or a variety of；
Conductive substrates of the present invention are transparent conducting glass or compliant conductive plastics.
Conductive substrates of the present invention protect the public electrode of nonconductive surface and conducting surface, conducting surface with Kapton Tape
Towards in the horizontal direction, under horizontal direction, obliquely, obliquely, perpendicular to one of reaction kettle bottom surface；
The present invention also provides a kind of electron transfer layers.
Provided preparation method obtains electron transfer layer of the present invention through the invention.
The present invention also provides a kind of perovskite solar cells.
Perovskite solar cell of the present invention, including ionic liquid assisted microwave synthesis in-situ low-temperature provided by the present invention
Synthesize electron transfer layer.
Perovskite solar cell structure of the present invention successively includes conductive substrates, electron transfer layer, calcium titanium from bottom to top
Mine absorbed layer, hole transmission layer, back electrode layer.
Compared with the prior art, the invention has the following beneficial effects:
(1) the present invention provides a kind of methods simple, strong operability, low temperature preparation and the perovskite for being not required to high annealing
The preparation method of solar cell electron transfer layer.The in-situ method has that reaction temperature is low, the reaction time is short, is not required to high temperature moves back
The features such as fiery, at low cost, environmentally protective, is conducive to promote.It can get high-purity, of uniform size, the good electronics of optical property
Transmit layer material.Without porous layer, it is not required to high temperature sintering.Material is in the process for preparing electron transfer layer in solution prior art
In, reaction temperature is higher and needs high annealing, and process loss is big, at high cost, the problems such as being unfavorable for large-scale industrial production.
(2) the present invention provides a kind of simple ionic liquid assisted microwave synthesis in-situ low-temperature synthesis perovskite solar cell electricity
Sub- transport layer in low temperature and can obtain in situ high-purity, uniform and stable high-performance titanic oxide electronic transport layer material in the short time
Material.
(3) the present invention can in-situ low-temperature synthesis perovskite solar cell electron-transport using the microwave method of ionic liquid auxiliary
Layer, is particularly suitable for flexible perovskite solar cell.
(4) compared with prior art, technology provided by the invention can be used for preparing series of high efficiency based on low temperature in situ synthesis
The perovskite solar cell of titanic oxide electronic transport layer.Ionic liquid assisted microwave synthesis in-situ low-temperature of the present invention synthesizes electron-transport
The perovskite solar cell preparation of layer is simple, and the period is short, effectively reduces production cost, has higher photoelectric conversion efficiency,
Suitable for the preparation of flexible battery, there is potential application prospect in terms of industrialized production.
Detailed description of the invention
Fig. 1 is the SEM figure of blank conductive substrates FTO；
Fig. 2 is the SEM figure of the conventional hydrothermal method original position titanic oxide electronic transmission material of comparative experiments；
Fig. 3~Fig. 8 is the SEM of growth in situ titanic oxide electronic transmission material under various different conditions prepared by the present invention
Figure；
Specific embodiment
Below in conjunction with embodiment and it is equipped with attached drawing the invention will be further described.Unless otherwise defined, institute of the present invention
All scientific terms used are identical as the normally understood meaning of person skilled in the art of the present invention.Following non-limiting realities
Applying example is but do not limit the invention in any way in order to better understand the present invention, and any change is included in this hair
In bright technical scope.Term used in the present invention " and/or " include any of one or more relevant listed items and
All combinations.
(1) the in-situ low-temperature preparation of titanic oxide electronic transmission layer material
Titanium material is uniformly mixed with aqueous solvent or alcohol so that the titanium material concentration of mixed solution be 0.01M-2M, by from
Sub- liquid is that the appropriate functionalized ion liquid of 1:40-40:1 addition is uniformly mixed with the volume ratio of solvent, is placed in microwave reaction kettle
In.The public electrode that the conductive substrates cleaned up are protected to nonconductive surface and conducting surface with Kapton Tape, is placed in reaction
In liquid, conducting surface by towards can be selected from horizontal direction, under horizontal direction, obliquely, obliquely, perpendicular to one in reaction kettle bottom surface
Kind.0-30min is reacted in reaction solution microwave heating at 50 DEG C -70 DEG C.Conductive substrates use water, ethyl alcohol to rinse respectively after natural cooling
80 DEG C of dryings can be obtained the fine and close electron transfer layer of the growth in situ in conductive substrates afterwards.
(2) preparation of perovskite solar cell
The perovskite material of calcium titanium ore bed is selected from following compound: MAxFA1-xPbI3-aBra、MAxFA1-xPbI3-bClb、
MAxFA1-xPbBr3-cClc, wherein x value is 0-1, a, b, and c value is 0-3, MA CH3NH3 +, FA is CH (NH2)2 +.Calcium of the invention
Titanium ore material is not limited to above compound, can also be that those skilled in the art think suitable other perovskite materials.
By shape in DMF (N,N-dimethylformamide) solution or DMF of corresponding perovskite material and DMSO (dimethyl sulfoxide) mixed solution
At perovskite solution, perovskite solution is uniformly spin-coated on the above-mentioned electron transfer layer obtained in situ using sol evenning machine, 90 DEG C
30min is heated, so that perovskite solution homogeneously crystallized film forming on the electron transport layer.
Hole transmission layer is preferably Spiro-OMeTAD, PEDOT:PSS or P3HT.By tetra-tert pyridine (TBP), double three
The chlorobenzene solution of hole mobile material is added in fluorine methylsulfonimide lithium (Li-TFSI), is uniformly spin-coated on calcium titanium ore bed, is formed empty
Hole transport materials layer.
Metal electrode is preferably gold electrode, silver electrode or aluminium electrode, is prepared using the method for vacuum evaporation or vacuum sputtering
(3) battery testing
Perovskite solar cell photoelectric properties are tested using Keithley 2400, and light source is 3A grades of solar energy simulations
Device (Oriel) is 100mW cm by standard silion cell correction incident intensity-2(AM 1.5)。
Embodiment 1
To the TiF for the 2M concentration being pre-chilled410ml deionized water is added in aqueous solution, adds 1ml ionic liquid, is mixed
Uniformly, it is placed in microwave reaction kettle.The conductive substrates FTO cleaned up Kapton Tape is protected into nonconductive surface and conduction
The public electrode in face, is placed in reaction solution, under conducting surface horizontal direction.5min is reacted in reaction solution microwave heating at 60 DEG C.It is natural
80 DEG C of dryings can be obtained the cause of the growth in situ on conductive substrates FTO after conductive substrates are rinsed with water, ethyl alcohol respectively after cooling
Close electron transfer layer.
On the electron transfer layer for being obtained the uniform spin coating of perovskite solution in situ using sol evenning machine, 90 DEG C of heating 30min
After obtain calcium titanium ore bed.Uniform spin coating hole mobile material solution forms hole transmission layer on calcium titanium ore bed.In hole transport
Vacuum evaporation gold electrode obtains the perovskite sun based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer on layer
Battery.
Fig. 3 is TiO obtained by the present embodiment2The SEM of electron transport layer materials schemes, and shows that prepared titanic oxide electronic passes
Defeated layer material, pattern is uniform, and shape is uniform.
The prepared perovskite solar cell based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer, most
The photoelectric conversion efficiency for obtaining 13.0% eventually, the titanic oxide electronic transport layer synthesized higher than conventional hydrothermal method under the same terms
Device efficiency 10.2%, improve 27.5%, it was demonstrated that calcium is synthesized using ionic liquid assisted microwave synthesis in-situ low-temperature of the invention
The preparation method of titanium ore solar cell electron transfer layer can get and obtain high-purity, uniform and stable high-performance electric in a short time
Son transmission layer material, is not required to high annealing, is not necessarily to porous layer, be not required to high temperature sintering, obtain the efficient calcium for being better than conventional hydrothermal method
Titanium ore solar cell device, solving material in prior art, during preparing electron transfer layer, reaction temperature is higher and needs
High annealing is wanted, process loss is big, at high cost, the problems such as being unfavorable for large-scale industrial production.
Embodiment 2
To the TiCl for the 2M concentration being pre-chilled420ml deionized water is added in aqueous solution, adds 1ml ionic liquid, is mixed
It closes uniformly, is placed in microwave reaction kettle.The conductive substrates FTO Kapton Tape cleaned up is protected into nonconductive surface and is led
The public electrode in electric face, is placed in reaction solution, under conducting surface horizontal direction.15min is reacted in reaction solution microwave heating at 60 DEG C.From
So conductive substrates can be obtained the growth in situ on conductive substrates FTO with 80 DEG C of dryings after water, ethyl alcohol flushing respectively after cooling
Fine and close electron transfer layer.
On the electron transfer layer for being obtained the uniform spin coating of perovskite solution in situ using sol evenning machine, 90 DEG C of heating 30min
After obtain calcium titanium ore bed.Uniform spin coating hole mobile material solution forms hole transmission layer on calcium titanium ore bed.In hole transport
Vacuum evaporation gold electrode obtains the perovskite sun based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer on layer
Battery.
Fig. 4 is the SEM figure that titanic oxide electronic obtained by the present embodiment transmits layer material, shows prepared titanium dioxide electricity
Son transmission layer material, pattern is uniform, and shape is uniform.
The prepared perovskite solar cell based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer, most
The photoelectric conversion efficiency for obtaining 14.5% eventually, the titanic oxide electronic transport layer synthesized higher than conventional hydrothermal method under the same terms
Device efficiency 10.2%, improve 42.2%.
Embodiment 3
To the TiCl for the 2M concentration being pre-chilled410ml ethyl alcohol is added in aqueous solution, adds 1ml ionic liquid, and mixing is equal
It is even, it is placed in microwave reaction kettle.The conductive substrates FTO cleaned up Kapton Tape is protected into nonconductive surface and conducting surface
Public electrode, be placed in reaction solution, conducting surface is obliquely.10min is reacted in reaction solution microwave heating at 50 DEG C.Natural cooling
80 DEG C of dryings can be obtained the densification of growth in situ on conductive substrates FTO after conductive substrates are rinsed with water, ethyl alcohol respectively afterwards
Electron transfer layer.
On the electron transfer layer for being obtained the uniform spin coating of perovskite solution in situ using sol evenning machine, 90 DEG C of heating 30min
After obtain calcium titanium ore bed.Uniform spin coating hole mobile material solution forms hole transmission layer on calcium titanium ore bed.In hole transport
Vacuum evaporation gold electrode obtains the perovskite sun based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer on layer
Battery.
Fig. 5 is the SEM figure that titanic oxide electronic obtained by the present embodiment transmits layer material, shows prepared titanium dioxide electricity
Son transmission layer material, pattern is uniform, and shape is uniform.
The prepared perovskite solar cell based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer, most
The photoelectric conversion efficiency for obtaining 12.0% eventually, the titanic oxide electronic transport layer synthesized higher than conventional hydrothermal method under the same terms
Device efficiency 10.2%, improve 17.6%.
Embodiment 4
To the TiCl for the 2M concentration being pre-chilled440ml deionized water is added in aqueous solution, adds 1ml ionic liquid, is mixed
It closes uniformly, is placed in microwave reaction kettle.The conductive substrates FTO Kapton Tape cleaned up is protected into nonconductive surface and is led
The public electrode in electric face, is placed in reaction solution, and conducting surface is obliquely.20min is reacted in reaction solution microwave heating at 70 DEG C.It is natural
80 DEG C of dryings can be obtained the cause of the growth in situ on conductive substrates FTO after conductive substrates are rinsed with water, ethyl alcohol respectively after cooling
Close electron transfer layer.
On the electron transfer layer for being obtained the uniform spin coating of perovskite solution in situ using sol evenning machine, 90 DEG C of heating 30min
After obtain calcium titanium ore bed.Uniform spin coating hole mobile material solution forms hole transmission layer on calcium titanium ore bed.In hole transport
Vacuum evaporation gold electrode obtains the perovskite sun based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer on layer
Battery.
Fig. 6 is the SEM figure that titanic oxide electronic obtained by the present embodiment transmits layer material, shows prepared titanium dioxide electricity
Son transmission layer material, pattern is uniform, and shape is uniform.
The prepared perovskite solar cell based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer, most
The photoelectric conversion efficiency for obtaining 15.2% eventually, the titanic oxide electronic transport layer synthesized higher than conventional hydrothermal method under the same terms
Device efficiency 10.2%, improve 49.1%.
Embodiment 5
To the TiCl for the 2M concentration being pre-chilled45ml deionized water is added in aqueous solution, adds 10ml ionic liquid, is mixed
It closes uniformly, is placed in microwave reaction kettle.The conductive substrates FTO Kapton Tape cleaned up is protected into nonconductive surface and is led
The public electrode in electric face, is placed in reaction solution, and conducting surface is perpendicular to reaction kettle bottom surface.Reaction solution microwave heating at 50 DEG C is reacted
5min.80 DEG C of dryings can be obtained in situ on conductive substrates FTO after conductive substrates are rinsed with water, ethyl alcohol respectively after natural cooling
The fine and close electron transfer layer of growth.
On the electron transfer layer for being obtained the uniform spin coating of perovskite solution in situ using sol evenning machine, 90 DEG C of heating 30min
After obtain calcium titanium ore bed.Uniform spin coating hole mobile material solution forms hole transmission layer on calcium titanium ore bed.In hole transport
Vacuum evaporation gold electrode obtains the perovskite sun based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer on layer
Battery.
Fig. 7 is the SEM figure that titanic oxide electronic obtained by the present embodiment transmits layer material, shows prepared titanium dioxide electricity
Son transmission layer material, pattern is uniform, and shape is uniform.
The prepared perovskite solar cell based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer, most
The photoelectric conversion efficiency for obtaining 13.8% eventually, the titanic oxide electronic transport layer synthesized higher than conventional hydrothermal method under the same terms
Device efficiency 10.2%, improve 35.3%.
Embodiment 6
To the Ti (OBu) for the 2M concentration being pre-chilled410ml deionized water is added in aqueous solution, adds 1ml ionic liquid,
It is uniformly mixed, is placed in microwave reaction kettle.By the conductive substrates FTO cleaned up with Kapton Tape protect nonconductive surface and
The public electrode of conducting surface, is placed in reaction solution, in conducting surface horizontal direction.15min is reacted in reaction solution microwave heating at 70 DEG C.
Conductive substrates can be obtained the growth in situ on conductive substrates FTO with 80 DEG C of dryings after water, ethyl alcohol flushing respectively after natural cooling
Fine and close electron transfer layer.
On the electron transfer layer for being obtained the uniform spin coating of perovskite solution in situ using sol evenning machine, 90 DEG C of heating 30min
After obtain calcium titanium ore bed.Uniform spin coating hole mobile material solution forms hole transmission layer on calcium titanium ore bed.In hole transport
Vacuum evaporation gold electrode obtains the perovskite sun based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer on layer
Battery.
Fig. 8 is the SEM figure that titanic oxide electronic obtained by the present embodiment transmits layer material, shows prepared titanium dioxide electricity
Son transmission layer material, pattern is uniform, and shape is uniform.
The prepared perovskite solar cell based on ionic liquid assisted microwave synthesis in-situ low-temperature synthesis electron transfer layer, most
The photoelectric conversion efficiency for obtaining 16.7% eventually, the titanic oxide electronic transport layer synthesized higher than conventional hydrothermal method under the same terms
Device efficiency 10.2%, improve 63.7%.
The various technical characteristics of above embodiments can carry out any combination, and above content described in this specification is only pair
Examples of the invention explanation, but it cannot be understood as limitations on the scope of the patent of the present invention.It is all according to the present invention
The simple change or combination that technical characteristic described in inventional idea, principle, construction etc. are done, should be included in the invention patent
In protection scope.Those skilled in the art can make several modifications, change to described specific embodiment
The substitution of shape, improvement, supplement or the like without departing from the present invention or surmounts model defined in claims of the present invention
It encloses, is within the scope of protection of the invention.
Claims (11)
1. a kind of method of ionic liquid assisted microwave synthesis in-situ low-temperature preparation perovskite solar cell electron transfer layer, feature exist
In electron-transport
Layer carries out in-situ low-temperature synthesis by ionic liquid assisted microwave synthesis method in conductive substrates, includes the following steps:
(1) titanium chloride/butyl titanate/titanium fluoride aqueous solution/alcoholic solution and functionalized ion liquid are uniformly mixed；
(2) clean conductive substrates are placed in reaction solution；
(3) reaction solution microwave heating at 50 DEG C -70 DEG C is reacted；
(4) it obtains after 80 DEG C of dryings after conductive substrates are rinsed with water, ethyl alcohol respectively after natural cooling and is given birth in situ in conductive substrates
Long electron transfer layer.
2. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the microwave heating reaction time be 0-30min.
3. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the functionalized ion liquid cation be selected from imidazoles, pyridines, pyroles, piperidines, pyrrole
Azole, triazole type, thiazoles, quaternary ammonium salt, quaternary phosphine salt, guanidine cation；The ionic liquid anion is selected from Cl-、Br-、
I-、BF4 -、PF6 -、CF3COO-、CF3SO3 -、NTf2 -、N(CN)2 -、C(CN)3 -、NCS-、NO3 -、H2PO4 -、HSO4 -、RCOO-、RSO4 -,
Wherein R is selected from hydrogen and the alkyl with linear chain or branched chain.
4. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the volume ratio of the ionic liquid and solvent be 1:40-40:1；
5. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the titanium chloride/butyl titanate/titanium fluoride aqueous solution/alcoholic solution concentration be 0.01M-
2M。
6. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the alcoholic solution be selected from one of methanol, ethyl alcohol, propyl alcohol or a variety of；
7. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the conductive substrates be transparent conducting glass or compliant conductive plastics.
8. ionic liquid assisted microwave synthesis in-situ low-temperature according to claim 1 prepares perovskite solar cell electron transfer layer
Method, it is characterised in that: the conductive substrates protect the public electrode of nonconductive surface and conducting surface with Kapton Tape, lead
Electricity facing towards in the horizontal direction, under horizontal direction, obliquely, obliquely, perpendicular to one of reaction kettle bottom surface.
9. a kind of ionic liquid assisted microwave synthesis in-situ low-temperature prepares perovskite solar cell electron transfer layer, which is characterized in that institute
Electron transfer layer is stated to obtain by any one of the claim 1-8 preparation method.
10. a kind of perovskite solar cell, which is characterized in that in situ including ionic liquid assisted microwave synthesis as claimed in claim 9
Low temperature preparation electron transfer layer.
11. perovskite solar cell according to claim 10, it is characterised in that the perovskite solar cell structure is certainly
It successively include conductive substrates, electron transfer layer, perovskite absorbed layer, hole transmission layer, back electrode layer on down.
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| CN108190949A (en) * | 2018-02-13 | 2018-06-22 | 武汉理工大学 | A kind of method of quick preparation small particle anatase-type nanometer titanium dioxide |
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| CN110491999A (en) * | 2019-08-27 | 2019-11-22 | 太原理工大学 | A kind of method of modifying of organic solar batteries electron transfer layer |
| CN110491999B (en) * | 2019-08-27 | 2022-04-12 | 太原理工大学 | Modification method of electron transport layer for organic solar cell |
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