CN106410047A - Large-area composite light absorption layer of perovskite solar cell and preparation method thereof - Google Patents
Large-area composite light absorption layer of perovskite solar cell and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a composite light absorption layer of a perovskite solar cell and a preparation method thereof, wherein the composite light absorption layer is formed by a three-dimensional perovskite type light absorption material film and a novel two-dimensional perovskite type light absorption material film. A light absorption layer skeleton is coated with the three-dimensional perovskite type light absorption material film; and the three-dimensional perovskite type light absorption material film is coated with the two-dimensional perovskite type light absorption material film to form a hole transport layer. The two-dimensional perovskite type light absorption material film is made of NMX4, wherein the N is one of thiourea, 2,5-Dithiobiurea, thiocarbohydrazide, or beta-aminoethyl isothiourea, the M expresses Pb<2+>, Sn<2+>, Ge<2+>, Cu<2+>, Ni<2+>, Mn<2+>, Zn<2+>, Fe<2+>, Sb<3+>, and Bi<3+>, or a mixture; a, and the X represents a CI<->, Br<->, I <->, or a mixture. According to the invention, with the perovskite composite light absorption layer, the photoelectric conversion efficiency is stabilized and improved.
Description
Technical field
The present invention relates to a kind of three-dimensional Ca-Ti ore type light absorbing material thin film and New Two Dimensional Ca-Ti ore type light absorbing material
The perovskite solar cell of thin film composition is combined light absorbing zone and preparation method thereof, belongs to new forms of energy and field of new.
Technical background
More than 28%, future is expected to reach 50% the current photoelectric transformation efficiency of perovskite solar cell, becomes solar cell
The new hope of industry.Perovskite solar cell is typically passed by transparent conducting glass, compacted zone, perovskite light absorbing zone, hole
Defeated layer, metal back electrode five part composition.The thickness of perovskite light absorbing zone is generally 200-600nm, and Main Function is to absorb
Sunlight simultaneously produces electron-hole pair, and can high efficiency of transmission electron-hole pair.Perovskite light absorbing material Typical molecular formula is
AMX3, wherein, A represents monovalent cation, usually CH3NH3 +、CH(NH2)2 +Or Cs+；M represents metal cation, usually
Pb2+、Sn2+Or Ge2+；X represents anion, usually Cl-、Br-、I-、CNS-Or PF6 -.
Research to metal cation and halide anion both at home and abroad is more thorough at present, and the group to monovalent cation
The research of one-tenth, structurally and functionally mechanism is just at the early-stage.If monovalent cation molecular proportion is larger or the molecule of diamine structures,
The high symmetry of three-dimensional perovskite crystal structure is easy for being destroyed, and forms two-dimensional layer Ca-Ti ore type light absorbing material, allusion quotation
Type molecular formula is NMX4.Research finds the opto-electronic conversion performance of two-dimensional layer Ca-Ti ore type light absorbing material not as good as conventional three-dimensional
Ca-Ti ore type light absorbing material, but has more preferable environmental stability, electric conductivity separates and transmission performance with good hole.
Research finds, by three-dimensional Ca-Ti ore type light absorbing material and two-dimentional Ca-Ti ore type light absorbing material mixing application, to stablize and carry
High perovskite solar cell light absorption layer performance, representative patents include CN1316427 (2001-10-10), CN104795501
(2015-07-22) 、CN104795501(2015-07-22) 、CN105742504(2016-07-06) 、CN106098943
(2016-11-09) with CN2016109969221 (2016-11-14).Although perovskite photoelectric conversion efficiency of the solar battery data
Constantly refresh, in current Ca-Ti ore type light absorbing material, organic cation kind is also fewer, perovskite light absorbing material
Filming performance is bad, is not met by the coating of large area perovskite solar cell light absorption layer through engineering approaches and requires.Solar cell skill
Three big key elements of art exploitation and industrialization are photoelectric transformation efficiency, production cost and stability, market demand photoelectricity
The perovskite solar cell light absorption layer that conversion efficiency is higher, production cost is lower and performance is more stable.By different types of calcium
Titanium ore type light absorbing material combination application is to improve one of approach of its combination property.
Content of the invention
It is an object of the invention to provide a kind of large area perovskite solar cell is combined light absorbing zone, especially with three-dimensional
Ca-Ti ore type light absorbing material thin film and New Two Dimensional Ca-Ti ore type light absorbing material thin film composition perovskite solar cell are combined
Light absorbing zone, to improve perovskite solar cell light absorption layer filming performance and stability, and with New Two Dimensional Ca-Ti ore type light
Absorbing membrane simultaneously as hole transmission layer, to simplify large area perovskite solar cell preparation technology.
In the present invention, three-dimensional Ca-Ti ore type light absorbing material film coated is on light absorbing zone skeleton, two-dimentional Ca-Ti ore type light
Absorbing material film coated on three-dimensional Ca-Ti ore type light absorbing material thin film, simultaneously as hole transmission layer.
In the present invention, three-dimensional Ca-Ti ore type light absorbing material thin film consists of AMX3, wherein, A is CH3NH3 +、CH
(NH2)2 +、Cs+Or its mixture；M is Pb2+、Sn2+、Ge2+、Cu2+、Ni2+、Mn2+、Zn2+、Fe2+、Sb3+、Bi3+Or its mixing
Thing；X is Cl-、Br-、I-、CNS-、PF6 -Or its mixture.
In the present invention, two-dimentional Ca-Ti ore type light absorbing material thin film consists of NMX4, wherein, N be thiourea, bis-thiourea, two
One of thiosemicarbazides or beta-aminoethyl isothiourea；M is Pb2+、Sn2+、Ge2+、Cu2+、Ni2+、Mn2+、Zn2+、Fe2+、Sb3+、Bi3+
Or its mixture；X is Cl-、Br-、I-Or its mixture.
In the present invention, three-dimensional Ca-Ti ore type light absorbing material thin film is by consisting of AMX3Perovskite light absorbing material dissolving
In dimethylformamide, gamma-butyrolacton or dimethyl sulfoxide polar organic solvent, then it is coated on light absorbing zone skeleton,
Formed after heat treated, thickness is 100-500nm.
In the present invention, two-dimentional Ca-Ti ore type light absorbing material thin film is by consisting of NMX4Perovskite light absorbing material dissolving
In dimethylformamide, gamma-butyrolacton or dimethyl sulfoxide polar organic solvent, then it is coated on three-dimensional Ca-Ti ore type light and inhales
Receive on material film, formed after heat treated, thickness is 50-200nm.
The thickness of two-dimentional Ca-Ti ore type light absorbing material thin film and three-dimensional Ca-Ti ore type light absorbing material thin film in the present invention
Than for 1：2-10, exists between element in two layers of Ca-Ti ore type light absorbing material and is exchanged with each other, spreads and permeates, in two layers of calcium titanium
The contact area of ore deposit light absorbing material thin film forms the transition zone of complexity, and transition region thickness is 25-100nm.Three-dimensional Ca-Ti ore type
As light absorbing zone main body, the contribution rate to opto-electronic conversion is 60%-80% to light absorbing material thin film, two-dimentional Ca-Ti ore type light absorbs
Material film is used for making up three-dimensional Ca-Ti ore type light absorbing material thin film in terms of uniformity, light abstraction width and environmental stability
Deficiency, simultaneously as hole transmission layer, the contribution rate to opto-electronic conversion is 20%-40%.
Thiourea, bis-thiourea, diaminourea thiourea or beta-aminoethyl isothiourea and the metal halide shape adopting in the present invention
The mechanism of action becoming adduct need to study further.Because former containing two amino and a sulfur in thiourea derivative molecule
, there is unshared electron pair in son, be very easy to absorption metal surface formed protecting film, so industrial frequently as corrosion inhibition for metal
Agent is applied；Because in thiourea derivative molecule, lone electron pair exists, they can react formation hydriodate with hydroiodic acid, enters one
Step and metal halide react formation New Two Dimensional laminated perovskite type light absorbing material.In Ca-Ti ore type light absorbing material molecule
The introducing of sulphur atom, changes resistance to temperature, resistance to dampness and the crystalline film performance of traditional Ca-Ti ore type light absorbing material；Sulphur atom
There is reproducibility, even if being oxidized to urea in storage and applied environment, also will not destroy Ca-Ti ore type light absorbing material molecule
Structure.The compound of sulfur is typically photosensitive molecular, can extend the light absorption wavelength scope to sunlight, have good hole
Carrier transmission performance, it is possible to increase photoelectric transformation efficiency.
It is a further object of the present invention to provide a kind of large area perovskite solar cell is combined the preparation method of light absorbing zone,
Inhale including three-dimensional Ca-Ti ore type light absorbing material film preparation, two-dimentional Ca-Ti ore type light absorbing material and film preparation, complex light
Receive layer preparation and evaluate, technical scheme comprises the following steps：
（1）Three-dimensional Ca-Ti ore type light absorbing material is dissolved in polar organic solvent, with biscuit ware funnel secondary filter, shape
Become the light absorbing material solution of mass percentage concentration 10%-20%, with bar spreader, light absorbing material solution coating is inhaled in light
Receive on layer skeleton, after solvent volatilization, form the three-dimensional Ca-Ti ore type light absorbing material crystalline membrane that thickness is 100-500nm, described
Polar organic solvent is dimethylformamide, gamma-butyrolacton, dimethyl sulfoxide or its mixture；Described light absorbing zone skeleton is
In the FTO Conducting Glass of 100mm × 100mm, coating thickness is the nano-TiO of 20-50nm2Compacted zone, is then coated with
Particle diameter is 40-60nm, and thickness is the TiO of 100-600nm2Thin film, finally sinters at 450-550 DEG C and forms；
（2）It is separately added into polar organic solvent, halogen acids and metal halide in glass reactor, stir at 40-60 DEG C
To being completely dissolved, it is subsequently adding one of thiourea derivative, control raw material molar ratio is：Thiourea derivative：HX：MX2= 1：
2.0-2.1：0.95-1.05, continues stirring reaction 12-24 h, obtains two-dimentional Ca-Ti ore type light absorbing material solution；Vacuum is dense
It is reduced in solution and has crystallization to separate out, add dehydrated alcohol to make the two-dimentional Ca-Ti ore type light absorbing material NMX of dissolving in polar solvent4
It is precipitated out, vacuum filter, absolute ethanol washing, obtain refined NMX after vacuum drying4Crystalline product, described thiourea derives
Thing is thiourea, bis-thiourea, diaminourea thiourea or beta-aminoethyl isothiourea；Described metal halide be metallic element Pb, Sn,
Ge, Cu, Ni, Mn, Zn, Fe or the halogenide of its mixture；
（3）Two-dimentional Ca-Ti ore type light absorbing material crystallization made above is dissolved in polar organic solvent, uses biscuit ware
Funnel secondary filter, forms the perovskite light absorbing material solution of mass percentage concentration 10%-20%, with bar spreader by calcium titanium
On three-dimensional Ca-Ti ore type light absorbing material crystalline membrane, form thickness after solvent volatilization is ore deposit light absorbing material solution coating
The two-dimentional Ca-Ti ore type light absorbing material crystalline membrane of 50-200nm, described polar organic solvent be dimethylformamide, γ-
Butyrolactone, dimethyl sulfoxide or its mixture；
（4）Double Perovskite type light absorbing material crystalline membrane made above is heated to 140-190 DEG C under vacuum,
And it is incubated 0.5-2h, so that element in two layers of Ca-Ti ore type light absorbing material is exchanged with each other, spreads and permeate, in two layers of perovskite light
Absorbing material thin film contact area forms the mixed transition layer of two kinds of titanium ore light absorbing materials, makes perovskite light absorption film simultaneously
In the raw material carried secretly and solvent impurity volatilization remove, thus being formed, surface smooths and the black perovskite complex light of stable performance is inhaled
Receive layer；
（5）Perovskite made above is combined light absorbing zone and substrate conduction glass is cut into the rectangle of 100mm × 10mm, no
Need to be coated with hole transmission layer, applying conductive elargol thin film on compound light absorbing zone, dry solidification at 150-200 DEG C, table
Face square resistance is 1-5 Ω, and the perovskite photoelectric conversion efficiency of the solar battery being assembled with it is 13%-14%, indoor placement January
The photoelectric transformation efficiency of perovskite solar cell has no decline afterwards.
In the present invention, three-dimensional Ca-Ti ore type light absorbing material preparation method is with reference to Chinese invention patent application
2016111009189(2016-12-05)、2016110991635(2016-12-04)、2016110837492(2016-11-30)
Middle method；Efficiency of solar cell is using the small-sized solar module tester simulated solar optical tests of customization.
Beneficial effects of the present invention are embodied in：
（1）The New Two Dimensional Ca-Ti ore type light absorption film surfacing of the present invention is smooth, and chemical stability is good, can make up conventional
Three-dimensional perovskite light absorbing zone filming performance and the deficiency of stability；
（2）The present invention has more preferable holoe carrier transmission performance, can be able to extend to sunlight as hole transmission layer
Light absorption wavelength scope and improve photoelectric transformation efficiency；
（2）The present invention adopts perovskite to be combined light absorbing zone, can stabilize and increase photoelectric transformation efficiency, adapts to large area calcium titanium
The preparation of ore deposit solar cell light absorption layer needs.
Specific embodiment
Embodiment 1
In the FTO Conducting Glass of 100mm × 100mm, coating thickness is the nano-TiO of 20-50nm2Compacted zone, then
Coating particle diameter is 40-60nm, and thickness is the TiO of 100-600nm2Thin film, finally at 450-550 DEG C, sintering forms light absorbing zone
Casing play.Weigh CH3NH3PbI3Ca-Ti ore type light absorbing material 5g, the dimethylformamide being dissolved in 30g through processed is molten
In agent, stirring is dissolved for 12 hours to whole, with biscuit ware funnel secondary filter, forms the light suction of mass percentage concentration 14.3%
Receive material solution, with bar spreader by light absorbing material solution coating on light absorbing zone skeleton, formed thick after solvent volatilization
Spend the iodate methylamine lead CH for 300nm3NH3PbI3Light absorbing material crystalline membrane.
It is separately added into dimethylformamide 300g, the hydroiodic acid 63.7g of mass percentage concentration 50% in glass reactor
(0.21mol) with lead iodide 46.1g (0.1mol), stir to being completely dissolved at 40-60 DEG C, be subsequently adding thiourea 8.0g
(0.105mol), continue stirring reaction 12 h, obtain iodate thiourea lead (NH3)2CSPbI4Solution；It is concentrated in vacuo in solution
There is crystallization to separate out, add dehydrated alcohol to make the iodate thiourea lead (NH of dissolving in polar solvent3)2CSPbI4It is precipitated out, vacuum mistake
Filter, absolute ethanol washing, obtain refined iodate thiourea lead (NH after vacuum drying3)2CSPbI4Crystallize 100.8g, yield is
96%.By iodate thiourea lead (NH made above3)2CSPbI4Crystallization 5g, is dissolved in the dimethylformamide through processed for the 30g
In solvent, with biscuit ware funnel secondary filter, iodate methylamine lead CH will be coated on bar spreader3NH3PbI3Light absorbs material
On material crystalline membrane, after solvent volatilization, form the iodate thiourea lead (NH that thickness is 100nm3)2CSPbI4Light absorbing material crystallizes
Thin film, film surface flat smooth.By iodate methylamine lead CH made above3NH3PbI3With iodate thiourea lead (NH3)2CSPbI4
Double Perovskite light absorbing material crystalline membrane is heated to 160 DEG C under vacuum, and is incubated 1h, makes two layers of titanium ore light absorbs
Material film contact area forms the transition zone of two kinds of titanium ore light absorbing materials, make simultaneously the methylamine carried secretly in light absorption film and
Thiourea starting material and solvent dimethylformamide volatilization remove, and form smooth and stable performance the black perovskite complex light in surface and inhale
Receive layer.
Perovskite made above is combined light absorbing zone and substrate conduction glass is cut into the rectangle of 100mm × 10mm,
Applying conductive elargol thin film on compound light absorbing zone, dry solidification at 150-200 DEG C, surface square resistance is 1.5 Ω, group
The test perovskite photoelectric conversion efficiency of the solar battery of dress is 13.3%, the photoelectricity of perovskite solar cell after indoor placement January
Conversion efficiency has no decline.
Embodiment 2
In the FTO Conducting Glass of 100mm × 100mm, coating thickness is the nano-TiO of 20-50nm2Compacted zone, then
Coating particle diameter is 40-60nm, and thickness is the TiO of 100-600nm2Thin film, finally at 450-550 DEG C, sintering forms light absorbing zone
Casing play.Weigh bromination carbonamidine lead CH (NH2)2PbBr3Ca-Ti ore type light absorbing material 5g, is dissolved in 30g through the two of processed
In first sulfoxide solvent, stirring is dissolved for 12 hours to whole, with biscuit ware funnel secondary filter, is incited somebody to action with stainless steel wire rod coating device
Light absorbing material solution coating, on light absorbing zone skeleton, forms the bromination carbonamidine lead CH that thickness is 500nm after solvent volatilization
(NH2)2PbBr3Light absorbing material crystalline membrane.
It is separately added into dimethyl sulfoxide 200g, the hydroiodic acid 63.7g of mass percentage concentration 50% in glass reactor
(0.21mol) with lead iodide 46.1g (0.1mol), stir to being completely dissolved at 40-60 DEG C, be subsequently adding beta-aminoethyl
Isothiourea hydrobromic acid 28.1g (0.10mol), continues stirring reaction 16 h, obtains iodine bromination aminoethylisothiourea lead (NH3)2C2H4CSNHPbBr2I2Solution；It is concentrated in vacuo in solution and has crystallization to separate out, add dehydrated alcohol to make dissolving in polar solvent
(NH3)2C2H4CSNHPbBr2I2It is precipitated out, vacuum filter, absolute ethanol washing, obtain refined (NH after vacuum drying3)2C2H4CSNHPbBr2I2Crystallization 70.5g, yield is 95%.By (NH made above3)2C2H4CSNHPbBr2I2Crystallization 5g, is dissolved in
30g, in dimethylsulfoxide solvent, with biscuit ware funnel secondary filter, will be coated on bromination first with stainless steel wire rod coating device
Amidine lead CH (NH2)2PbBr3On light absorbing material crystalline membrane, after solvent volatilization, form the iodine bromination amino second that thickness is 150nm
Base isothiourea lead (NH3)2C2H4CSNHPbBr2I2Light absorbing material crystalline membrane, film surface is smooth.Bromination first made above
Amidine lead CH (NH2)2PbBr3With iodine bromination aminoethylisothiourea lead (NH3)2C2H4CSNHPbBr2I2Double Perovskite light absorbs material
Material crystalline membrane is heated to 180 DEG C under vacuum, and is incubated 0.5h, makes two layers of titanium ore light absorbing material thin film contact area
Form the transition zone of two kinds of titanium ore light absorbing materials, make carbonamidine and the beta-aminoethyl isothiourea carried secretly in light absorption film simultaneously
Raw material and dimethylsulfoxide solvent volatilization remove, and form smooth and stable performance the black perovskite in surface and are combined light absorbing zone.
Perovskite made above is combined light absorbing zone and substrate conduction glass is cut into the rectangle of 100mm × 10mm,
Applying conductive elargol thin film on compound light absorbing zone, dry solidification at 150-200 DEG C, surface square resistance 1.1 Ω, assembling
Test perovskite photoelectric conversion efficiency of the solar battery be 13.9%, after indoor placement January, the photoelectricity of perovskite solar cell turns
Change efficiency and have no decline.
Claims (4)
1. a kind of large area perovskite solar cell is combined light absorbing zone it is characterised in that by three-dimensional Ca-Ti ore type light absorbing material
Thin film and two-dimentional Ca-Ti ore type light absorbing material thin film composition perovskite solar cell are combined light absorbing zone, three-dimensional Ca-Ti ore type light
On light absorbing zone skeleton, thickness is 100-500nm to absorbing material film coated；Two-dimentional Ca-Ti ore type light absorbing material thin film applies
On three-dimensional Ca-Ti ore type light absorbing material thin film, thickness is 50-200nm to cloth, simultaneously as hole transmission layer；Two-dimentional perovskite
The thickness of type light absorbing material thin film and three-dimensional Ca-Ti ore type light absorbing material thin film ratio is for 1：2-10；Two layers of Ca-Ti ore type light are inhaled
Receive element presence in material film to be exchanged with each other, spread and permeate, form the transition zone of complexity in the contact area of two-layer film,
Transition region thickness is 25-100nm.
2. large area perovskite solar cell as claimed in claim 1 is combined light absorbing zone it is characterised in that three-dimensional Ca-Ti ore type
Light absorbing material thin film consists of AMX3, wherein, A is CH3NH3 +、CH(NH2)2 +、Cs+Or its mixture；M is Pb2+、Sn2+、
Ge2+、Cu2+、Ni2+、Mn2+、Zn2+、Fe2+Or its mixture；X is Cl-、Br-、I-、CNS-、PF6 -Or its mixture.
3. large area perovskite solar cell as claimed in claim 1 is combined light absorbing zone it is characterised in that two-dimentional Ca-Ti ore type
Light absorbing material thin film consists of NMX4, wherein, N is thiourea, bis-thiourea, diaminourea thiourea or beta-aminoethyl isothiourea it
One；M is Pb2+、Sn2+、Ge2+、Cu2+、Ni2+、Mn2+、Zn2+、Fe2+Or its mixture；X is Cl-、Br-、I-Or its mixture.
4. a kind of large area perovskite solar cell is combined the preparation method of light absorbing zone, including three-dimensional Ca-Ti ore type light absorbs material
Material film preparation, two-dimentional Ca-Ti ore type light absorbing material and film preparation, compound light absorbing zone preparation and evaluation three parts, technology
Scheme comprises the following steps：
（1）Three-dimensional Ca-Ti ore type light absorbing material is dissolved in polar organic solvent, with biscuit ware funnel secondary filter, shape
Become the light absorbing material solution of mass percentage concentration 10%-20%, with stainless steel wire rod coating device by light absorbing material solution coating
On light absorbing zone skeleton, form the three-dimensional Ca-Ti ore type light absorbing material crystallization that thickness is 100-500nm after solvent volatilization thin
Film, described polar organic solvent is dimethylformamide, gamma-butyrolacton, dimethyl sulfoxide or its mixture；Described light absorbing zone
Skeleton is that coating thickness is the nano-TiO of 20-50nm in the FTO Conducting Glass of 100mm × 100mm2Compacted zone, so
Coating particle diameter is 40-60nm afterwards, and thickness is the TiO of 100-600nm2Thin film, finally sinters at 450-550 DEG C and forms；
（2）It is separately added into polar organic solvent, halogen acids and metal halide in glass reactor, stir at 40-60 DEG C
To being completely dissolved, it is subsequently adding one of thiourea derivative, control raw material molar ratio is：Thiourea derivative：HX：MX2= 1：
2.0-2.1：0.95-1.05, continues stirring reaction 12-24 h, obtains two-dimentional Ca-Ti ore type light absorbing material solution；Vacuum is dense
It is reduced in solution and has crystallization to separate out, add dehydrated alcohol to make the Ca-Ti ore type light absorbing material NMX of dissolving in polar solvent4Precipitation
Out, vacuum filter, absolute ethanol washing, obtain refined NMX after vacuum drying4Crystalline product, described thiourea derivative is
Thiourea, bis-thiourea, diaminourea thiourea or beta-aminoethyl isothiourea；Described metal halide be metallic element Pb, Sn, Ge, Cu,
Ni, Mn, Zn, Fe or the halogenide of its mixture；
（3）Two-dimentional Ca-Ti ore type light absorbing material crystallization made above is dissolved in polar organic solvent, uses biscuit ware
Funnel secondary filter, forms the perovskite light absorbing material solution of mass percentage concentration 10%-20%, with bar spreader by calcium titanium
On three-dimensional Ca-Ti ore type light absorbing material crystalline membrane, form thickness after solvent volatilization is ore deposit light absorbing material solution coating
The two-dimentional Ca-Ti ore type light absorbing material crystalline membrane of 50-200nm, described polar organic solvent be dimethylformamide, γ-
Butyrolactone, dimethyl sulfoxide or its mixture；
（4）Double Perovskite type light absorbing material crystalline membrane made above is heated to 140-190 DEG C under vacuum,
And it is incubated 0.5-2h, so that element in two layers of Ca-Ti ore type light absorbing material is exchanged with each other, spreads and permeate, in two layers of perovskite light
Absorbing material thin film contact area forms the mixed transition layer of two kinds of titanium ore light absorbing materials, makes perovskite light absorption film simultaneously
In the raw material carried secretly and solvent impurity volatilization remove, thus being formed, surface smooths and the black perovskite complex light of stable performance is inhaled
Receive layer；
（5）Perovskite made above is combined light absorbing zone and substrate conduction glass is cut into the rectangle of 100mm × 10mm, no
Need to be coated with hole transmission layer, direct applying conductive elargol thin film on compound light absorbing zone, be dried solid at 150-200 DEG C
Change, surface square resistance is 1-5 Ω, and the perovskite photoelectric conversion efficiency of the solar battery being assembled with it is 13%-14%, indoor placement
After January, the photoelectric transformation efficiency of perovskite solar cell has no decline.
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| CN112071993B (en) * | 2020-08-04 | 2022-08-26 | 浙江大学 | Method for improving photoelectric performance of perovskite solar cell by using modifier |
| CN112071993A (en) * | 2020-08-04 | 2020-12-11 | 浙江大学 | Method for improving photoelectric performance of perovskite solar cell by using modifier |
| CN112142001A (en) * | 2020-08-31 | 2020-12-29 | 山东大学 | Iodine-sulfur circulation hydrogen production method and system based on efficient light energy utilization |
| CN112397653B (en) * | 2020-11-17 | 2023-04-18 | 山东大学 | Efficient and stable inorganic lead-free perovskite solar cell and preparation method thereof |
| CN112397653A (en) * | 2020-11-17 | 2021-02-23 | 山东大学 | Efficient and stable inorganic lead-free perovskite solar cell and preparation method thereof |
| CN113629191A (en) * | 2021-06-15 | 2021-11-09 | 鲁东大学 | Methylamine-pyridine mixed type perovskite solar cell with high stability |
| CN117642048A (en) * | 2024-01-26 | 2024-03-01 | 中国科学技术大学 | Tin-based perovskite precursor composition, tin-based perovskite thin film and solar cell |
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