CN111769050A - Method for detecting efficiency of perovskite solar cell by using Raman spectrum - Google Patents
Method for detecting efficiency of perovskite solar cell by using Raman spectrum Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000001237 Raman spectrum Methods 0.000 title claims abstract description 13
- 238000004528 spin coating Methods 0.000 claims abstract description 33
- 239000011521 glass Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 claims abstract description 11
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 10
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 7
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 229930188620 butyrolactone Natural products 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 239000012046 mixed solvent Substances 0.000 claims abstract description 3
- 238000009987 spinning Methods 0.000 claims abstract description 3
- 238000001069 Raman spectroscopy Methods 0.000 claims description 19
- 238000000137 annealing Methods 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- MCEWYIDBDVPMES-UHFFFAOYSA-N [60]pcbm Chemical compound C123C(C4=C5C6=C7C8=C9C%10=C%11C%12=C%13C%14=C%15C%16=C%17C%18=C(C=%19C=%20C%18=C%18C%16=C%13C%13=C%11C9=C9C7=C(C=%20C9=C%13%18)C(C7=%19)=C96)C6=C%11C%17=C%15C%13=C%15C%14=C%12C%12=C%10C%10=C85)=C9C7=C6C2=C%11C%13=C2C%15=C%12C%10=C4C23C1(CCCC(=O)OC)C1=CC=CC=C1 MCEWYIDBDVPMES-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000007747 plating Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 229920000144 PEDOT:PSS Polymers 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
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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
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- 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
- H10K71/70—Testing, e.g. accelerated lifetime tests
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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Abstract
The invention discloses a method for detecting the efficiency of a perovskite solar cell by utilizing Raman spectrum, which comprises the steps of preparing a perovskite solution; coating PEDOT on ITO conductive glass in a spinning mode, namely heating the PSS solution; spin coating perovskite solution and heating; dropwise adding copper phthalocyanine, standing in vacuum, and performing Raman spectrum detection; the perovskite solution is prepared by mixing MAI and lead iodide in a mixed solvent of butyrolactone and dimethyl sulfoxide with a molar ratio of 1:1 of 7:3, and heating and stirring at 60 ℃ for more than 2 hours; and the spin coating of the PEDOT is carried out after the PSS solution is heated, wherein the spin coating is carried out at the low speed of 1000rpm/5s and then at the high speed of 3000rpm/30 s. The method has the advantages of simple operation process, short time consumption for detecting the perovskite battery by using the Raman spectrum, low experiment cost and no need of using a film plating machine.
Description
Technical Field
The invention belongs to the technical field of perovskite solar cells, and particularly relates to a method for detecting the efficiency of a perovskite solar cell by using Raman spectroscopy.
Background
The general detection method is to plate electrodes by a vacuum evaporation coating method and then simulate sunlight to detect the efficiency of the perovskite solar cell, and although the detection method is accurate, the operation is complex and the time is long.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above-mentioned technical drawbacks.
Accordingly, in one aspect of the present invention, the present invention overcomes the deficiencies of the prior art by providing a method for detecting the efficiency of perovskite solar cells using raman spectroscopy.
In order to solve the technical problems, the invention provides the following technical scheme: a method for detecting perovskite solar cell efficiency using raman spectroscopy, comprising preparing a perovskite solution; coating PEDOT on ITO conductive glass in a spinning mode, namely heating the PSS solution; spin coating perovskite solution and heating; and (4) dropwise adding copper phthalocyanine, standing in vacuum, and performing Raman spectrum detection.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: the perovskite solution is prepared by mixing MAI and lead iodide in a mixed solvent of butyrolactone and dimethyl sulfoxide with a molar ratio of 1:1 of 7:3, and heating and stirring at 60 ℃ for more than 2 hours.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: and the spin coating of the PEDOT is carried out after the PSS solution is heated, wherein the spin coating is carried out at the low speed of 1000rpm/5s and then at the high speed of 3000rpm/30 s.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: and (3) spin-coating PEDOT, namely heating the PSS solution, and annealing the solution for 30min at 110 ℃.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: heating the spin-coating perovskite solution to spin-coat on ITO glass at a low speed of 1500rpm/20s and then at a high speed of 4000rpm/40s, dropwise adding chlorobenzene in the spin-coating process, and then annealing at 110 ℃ for 10 min.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: the method further comprises spin-coating the perovskite solution, heating, then spin-coating PCBM and BCP in sequence, then scraping off a perovskite layer on the common electrode of the ITO conductive glass by using tweezers, and evaporating a silver film with the thickness of 100-120 nm on the ITO conductive glass.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: and dropwise adding copper phthalocyanine, and standing in vacuum, wherein an absolute ethanol solution of the copper phthalocyanine is dropwise added on the perovskite layer, and standing for 2 hours.
As a preferable embodiment of the method for detecting the efficiency of a perovskite solar cell by using raman spectroscopy according to the present invention, wherein: the spin coating of PCBM and BCP is carried out in sequence, wherein the PCBM is spin-coated at low speed of 1000rpm/10s and high speed of 2000rpm/30s in a nitrogen glove box, and then annealing is carried out for 10min at 60-100 ℃; then spin-coating BCP at low speed 1500rpm/15s and high speed 2000rpm/20 s.
The invention has the beneficial effects that:
the method has the advantages of simple operation process, short time consumption for detecting the perovskite battery by using the Raman spectrum, low experiment cost and no need of using a film plating machine.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is an I-V characteristic curve of a battery at different annealing temperatures;
FIG. 2 is a Raman spectrum of a perovskite layer at different annealing temperatures.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
The formula is as follows:
1. MAI and lead iodide are mixed in a solution of 7:3 (butyrolactone: 700 ul; dimethyl sulfoxide: 300ul) according to a molar ratio of 1:1 (MAI: 162.4 mg; lead iodide: 470.9mg) to prepare a perovskite solution, and the perovskite solution is heated and stirred at 60 ℃ for more than 2 hours.
2. 20mgPCBM and 1ml chlorobenzene are prepared into PCBM solution, and heated and stirred for 2h at the temperature of 60 ℃.
3. Mixing BCP and anhydrous ethanol at a ratio of 1:1 (BCP: 2 mg; anhydrous ethanol: 2ml) and stirring for 2 h.
4. 57.6mg of copper phthalocyanine and 10ml of absolute ethanol are mixed to form a solution.
The method comprises the following operation steps:
1. cleaning the ITO conductive glass: ultrasonically cleaning with acetone and anhydrous ethanol twice each for 30min, and blowing with nitrogen gas.
2. And (3) spin-coating PEDOT (Poly ethylene glycol Ether-Co-Ltd.) (PEDOT: PSS solution) on ITO glass at low speed of 1000rpm/5s and high speed of 3000rpm/30s, and then annealing at 110 ℃ for 30 min.
3. Spin coating of perovskite solution: spin-coating on ITO glass at low speed of 1500rpm/20s and high speed of 4000rpm/40s in a nitrogen glove box, dripping chlorobenzene in the spin-coating process, and then annealing at 110 ℃ for 10 min.
4. And dropwise adding a copper phthalocyanine solution on the prepared perovskite layer, using an air pump to pump air, and standing for 2 hours.
5. And (4) detecting by using a Raman spectrum.
Example 1:
1. mixing MAI and lead iodide in a molar ratio of 1:1 (MAI: 162.4 mg; lead iodide: 470.9mg) in a solution of 7:3 (butyrolactone: 700 ul; dimethyl sulfoxide: 300ul) to prepare a perovskite solution, and heating and stirring at 60 ℃ for more than 2 hours.
2. 20mgPCBM and 1ml chlorobenzene are prepared into PCBM solution, and heated and stirred for 2h at the temperature of 60 ℃.
3. Mixing BCP and anhydrous ethanol at a ratio of 1:1 (BCP: 2 mg; anhydrous ethanol: 2ml) and stirring for 2 h.
4. 57.6mg of copper phthalocyanine and 10ml of absolute ethanol are mixed to form a solution.
The method comprises the following operation steps:
1. cleaning the ITO conductive glass: ultrasonically cleaning with acetone and anhydrous ethanol twice each for 30min, and blowing with nitrogen gas.
2. And (3) spin-coating PEDOT (Poly ethylene glycol Ether-Co-Ltd.) (PEDOT: PSS solution) on ITO glass at low speed of 1000rpm/5s and high speed of 3000rpm/30s, and then annealing at 110 ℃ for 30 min.
3. Spin coating of perovskite solution: spin-coating on ITO glass at low speed of 1500rpm/20s and high speed of 4000rpm/40s in a nitrogen glove box, dripping chlorobenzene in the spin-coating process, and then annealing at 110 ℃ for 10 min.
(1) Silver plating: the PCBM and BCP solutions were spin coated sequentially. Spin-coating PCBM solution in nitrogen glove box at low speed of 1000rpm/10s and high speed of 2000rpm/30s, and annealing at 90 deg.C for 10 min; then spin-coating BCP solution at low speed 1500rpm/15s and high speed 2000rpm/20 s. And scraping a perovskite layer on the ITO conductive glass common electrode by using tweezers, putting ITO into a template, evaporating a silver film with the thickness of 120nm by using a vacuum evaporator, and finally detecting the parameters of the battery by using a solar testing system.
(2) Detection by Raman spectroscopy: and dropwise adding a copper phthalocyanine solution on the perovskite layer, using an air pump to pump air, standing for 2 hours, and then carrying out Raman spectrum detection.
As shown in fig. 1, is the I-V characteristic curve of the perovskite solar cell at different annealing temperatures. Wherein the energy conversion efficiency (PCE) of the corresponding battery at the annealing temperature of 60-100 ℃ is 10.08%, 12.64%, 8.98%, 7.79% and 6.53% respectively.
FIG. 2 is a Raman spectrum of a perovskite layer at different annealing temperatures, with characteristic peak 1520.
In conjunction with fig. 1, it is evident that the raman spectral absorption peak is highest at 70 deg.c, and the corresponding cell conversion efficiency is also highest.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (8)
1. A method for detecting the efficiency of a perovskite solar cell by utilizing Raman spectrum is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
preparing a perovskite solution;
coating PEDOT on ITO conductive glass in a spinning mode, namely heating the PSS solution;
spin coating perovskite solution and heating;
and (4) dropwise adding copper phthalocyanine, standing in vacuum, and performing Raman spectrum detection.
2. The method for detecting perovskite solar cell efficiency using raman spectroscopy as defined in claim 1 wherein: the perovskite solution is prepared by mixing MAI and lead iodide in a mixed solvent of butyrolactone and dimethyl sulfoxide with a molar ratio of 1:1 of 7:3, and heating and stirring at 60 ℃ for more than 2 hours.
3. The method for detecting the efficiency of perovskite solar cells using raman spectroscopy as defined in claim 1 or 2, wherein: and the spin coating of the PEDOT is carried out after the PSS solution is heated, wherein the spin coating is carried out at the low speed of 1000rpm/5s and then at the high speed of 3000rpm/30 s.
4. The method for detecting perovskite solar cell efficiency using raman spectroscopy as defined in claim 3 wherein: and (3) spin-coating PEDOT, namely heating the PSS solution, and annealing the solution for 30min at 110 ℃.
5. The method for detecting perovskite solar cell efficiency using raman spectroscopy as defined in claim 1 wherein: heating the spin-coating perovskite solution to spin-coat on ITO glass at a low speed of 1500rpm/20s and then at a high speed of 4000rpm/40s, dropwise adding chlorobenzene in the spin-coating process, and then annealing at 110 ℃ for 10 min.
6. The method for detecting the efficiency of a perovskite solar cell by using Raman spectroscopy as claimed in any one of claims 1 to 5, wherein: the method further comprises spin-coating the perovskite solution, heating, then spin-coating PCBM and BCP in sequence, then scraping off a perovskite layer on the common electrode of the ITO conductive glass by using tweezers, and evaporating a silver film with the thickness of 100-120 nm on the ITO conductive glass.
7. The method for detecting perovskite solar cell efficiency using raman spectroscopy as defined in claim 6 wherein: and dropwise adding copper phthalocyanine, and standing in vacuum, wherein an absolute ethanol solution of the copper phthalocyanine is dropwise added on the perovskite layer, and standing for 2 hours.
8. The method for detecting perovskite solar cell efficiency using raman spectroscopy as defined in claim 6 wherein: the spin coating of PCBM and BCP is carried out in sequence, wherein the PCBM is spin-coated at low speed of 1000rpm/10s and high speed of 2000rpm/30s in a nitrogen glove box, and then annealing is carried out for 10min at 60-100 ℃; then spin-coating BCP at low speed 1500rpm/15s and high speed 2000rpm/20 s.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027019A1 (en) * | 2022-08-01 | 2024-02-08 | 德州学院 | Perovskite charge transport element |
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| WO2024027019A1 (en) * | 2022-08-01 | 2024-02-08 | 德州学院 | Perovskite charge transport element |
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