CN113149866A - α-FAPbI3Powder, preparation method thereof and perovskite solar cell - Google Patents

α-FAPbI3Powder, preparation method thereof and perovskite solar cell Download PDF

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CN113149866A
CN113149866A CN202110252152.0A CN202110252152A CN113149866A CN 113149866 A CN113149866 A CN 113149866A CN 202110252152 A CN202110252152 A CN 202110252152A CN 113149866 A CN113149866 A CN 113149866A
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fapbi
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樊新召
李佳锋
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Wuxi Utmolight Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C257/00—Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines
    • C07C257/10—Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines with replacement of the other oxygen atom of the carboxyl group by nitrogen atoms, e.g. amidines
    • C07C257/12—Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines with replacement of the other oxygen atom of the carboxyl group by nitrogen atoms, e.g. amidines having carbon atoms of amidino groups bound to hydrogen atoms
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    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G21/00—Compounds of lead
    • C01G21/16—Halides
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    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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    • 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
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Abstract

The invention discloses an alpha-FAPBI3Powder and preparation method thereof, and perovskite solar cell and preparation method of alpha-FAPBI3The method of powder comprises: (1) mixing lead iodide, amitraz iodide and a solvent to obtain a mixed solution; (2) mixing the mixed solution and an anti-solvent, and then carrying out solid-liquid separation to obtain a filter cake; (3) heating the filter cake at 110-150 ℃ to obtain alpha-FAPBI3And (3) powder. Therefore, the preparation method avoids using high-purity reaction raw materials, thereby reducing the cost; precipitation of FAPBI with anti-solvent at room temperature3Crystals and mild reaction conditions; the method avoids using a large amount of toxic solvent, and is suitable for green and safe production; and improves alpha-FAPBI3Yield of powder. Thus, the alpha-FAPBI obtained by the method3The perovskite battery prepared from the powder can reduce the production cost, solve the problem that the photovoltaic performance of the perovskite battery in the prior art is not repeatable, and is beneficial to large-scale production and application.

Description

α-FAPbI3Powder, preparation method thereof and perovskite solar cell
Technical Field
The invention belongs to the field of perovskite solar cells, and particularly relates to alpha-FAPBI3Powder, a preparation method thereof and a perovskite solar cell.
Background
With the photovoltaic technologyWith the development of technology, photovoltaic materials are also continuously developed by researchers to improve the efficiency of battery devices. Currently, many researches are made on perovskite solar cells, organic solar cells, and the like. Organic-inorganic hybrid all-solid-state Perovskite Solar Cells (PSCs) are currently attracting increasing attention from researchers due to their low cost and high performance. Wherein FAPBI3Is one of the most promising perovskite materials for high-efficiency solar cells at present, the optimal band gap of the perovskite materials is 1.47eV, and the high absorption coefficient exceeds 104cm-1The carrier diffusion length is several hundred microns. The photoelectric conversion efficiency of the perovskite solar cell reported so far exceeds 25%, but the irreproducibility of the photovoltaic performance of the perovskite solar cell is often reported, which is caused by the strict requirement of the perovskite solar cell on the purity of raw materials, and the PbI used2、FAI2The purity of raw materials needs to reach 99.99 percent, and the weighing of the precursor liquid prepared in each batch has errors, so that the photovoltaic performance of the perovskite battery cannot be well repeated, and the PbI with high purity2、FAI2The price of raw materials is high, which increases the cost of the device and makes the device difficult to produce and apply in large scale.
FAPbI3Can be divided into alpha phase and delta phase. Preparation of alpha-FAPBI reported so far3The method comprises the following steps: a mixture of synthetic FAI and lead iodide (99.99%) was stirred well (molar ratio 1:1) in 2-methoxyethanol (99.8% anhydrous, Aldrich); heating the mixed solution to 120 ℃, and then precipitating by a reverse method; filtered FAPBI3The black powder was baked at 150 ℃ for 30 minutes. The preparation of alpha-FAPBI3The method of (3) has the following disadvantages: (1) oil bath heating is adopted, so that the reaction condition is severe; (2) the alpha-FAPBI can be precipitated only by using a reverse method and taking longer to precipitate, and only a saturated part is precipitated to cause the alpha-FAPBI3The yield of (a) is low; (3) the purity of the used raw materials is high, the method is not beneficial to amplification in practice, and mass production is difficult; (4) preparation of alpha-FAPBI Using the above Process3Is unstable in air and changes from a black alpha phase to a yellow delta phase after being placed for a period of time.
Thus, the existing preparation of alpha-FAPBI3The process of the powder is in need of improvement.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide the alpha-FAPBI3The powder, the preparation method thereof and the perovskite solar cell have the following advantages: (1) high-purity reaction raw materials are avoided, so that the cost is reduced; (2) precipitation of FAPBI with anti-solvent at room temperature3Crystals and mild reaction conditions; (3) the method avoids using a large amount of toxic solvent, and is suitable for green and safe production; (4) increased alpha-FAPBI3Yield of powder. Thus, the alpha-FAPBI obtained by the method3The perovskite battery prepared from the powder can reduce the production cost, solve the problem that the photovoltaic performance of the perovskite battery in the prior art is not repeatable, and is beneficial to large-scale production and application.
In one aspect of the invention, the invention provides a method for preparing alpha-FAPBI3A method of powdering. According to an embodiment of the invention, the method comprises:
(1) mixing lead iodide, amitraz iodide and a solvent to obtain a mixed solution;
(2) mixing the mixed solution and an anti-solvent, and then carrying out solid-liquid separation to obtain a filter cake;
(3) heating the filter cake at 110-150 ℃ to obtain alpha-FAPBI3And (3) powder.
Preparation of alpha-FAPBI according to embodiments of the invention3The powder method comprises the steps of mixing lead iodide, iodoformamidine and a solvent to obtain a mixed solution, wherein the lead iodide and the iodoformamidine can be synthesized in a laboratory, high-purity reaction raw materials are avoided, the cost is reduced, and FAPBI is subjected to normal-temperature anti-solvent precipitation and solid-liquid separation treatment to obtain the FAPBI3Crystals are separated out from the solution to obtain a filter cake, so that the yield is improved, and finally the filter cake is heated at the temperature of 110-150 ℃ to obtain the alpha-FAPBI3And (3) powder. Thus, the preparation of alpha-FAPBI using the present application3The powder process has the following advantages: (1) avoid makingHigh-purity reaction raw materials are used, so that the cost is reduced; (2) precipitation of FAPBI with anti-solvent at room temperature3Crystals and mild reaction conditions; (3) the method avoids using a large amount of toxic solvent, and is suitable for green and safe production; (4) increased alpha-FAPBI3Yield of powder. Thus, the alpha-FAPBI obtained by the method3The perovskite battery prepared from the powder can reduce the production cost, solve the problem that the photovoltaic performance of the perovskite battery in the prior art is not repeatable, and is beneficial to large-scale production and application.
Additionally, the preparation of alpha-FAPBI according to the above embodiments of the present invention3The powder method can also have the following additional technical characteristics:
in some embodiments of the invention, in step (1), the molar ratio of the lead iodide to the iodoformamidine is (1-1.1): 1.
In some embodiments of the invention, in step (1), the solvent comprises at least one of γ -butyrolactone, acetonitrile, 2-methoxyethanol, N-dimethylformamide.
In some embodiments of the present invention, in the step (1), the concentration of the mixed solution is 1 to 1.5 mol/L.
In some embodiments of the invention, in step (2), the anti-solvent comprises at least one of ethyl acetate, chlorobenzene, and toluene. Thus, alpha-FAPBI can be improved3Yield of powder.
In some embodiments of the invention, in step (2), the volume ratio of the solvent to the anti-solvent is 1: (2-5). Thus, alpha-FAPBI can be improved3Yield of powder.
In some embodiments of the invention, the method further comprises: (4) converting the alpha-FAPBI3The powder is treated in a gaseous atmosphere containing a hydrogen sulfate radical. Thus, alpha-FAPBI may be facilitated3And (4) stabilizing the crystalline phase.
In some embodiments of the invention, in step (4), the gas containing sulfate comprises MASCN, fastn, and NH4At least one of SCNs. Thus, alpha-FAPBI may be facilitated3Crystalline phaseThe stability of (2).
In a second aspect, the invention provides an alpha-FAPBI3And (3) powder. According to the embodiment of the invention, the alpha-FAPBI3The powder is prepared by the method. Thus, the alpha-FAPBI obtained by the method3The perovskite battery prepared from the powder can reduce the production cost, solve the problem that the photovoltaic performance of the perovskite battery in the prior art is not repeatable, and is beneficial to large-scale production and application.
In a third aspect of the invention, a perovskite solar cell is presented. According to the embodiment of the invention, the perovskite solar cell adopts the alpha-FAPBI obtained by the method3Powder or the above-mentioned alpha-FAPBI3And (3) preparing powder. Thus, the above-mentioned alpha-FAPBI is adopted3The perovskite solar cell prepared from the powder can reduce cost and solve the problem that the photovoltaic performance of the perovskite solar cell in the prior art is not repeatable.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a process for preparing alpha-FAPBI according to one embodiment of the present invention3A schematic flow diagram of a powder process;
FIG. 2 is a flow diagram of the preparation of alpha-FAPBI in accordance with yet another embodiment of the present invention3Schematic flow diagram of the powder process.
Detailed Description
The embodiments of the present invention will be described in detail below, and the embodiments described below by referring to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In one aspect of the invention, the invention provides a method for preparing alpha-FAPBI3A method of powdering. According to an embodiment of the present invention, referring to FIG. 1, theThe method comprises the following steps:
s100: mixing lead iodide, amitraz and solvent
In this step, lead iodide, iodoformamidine and a solvent are mixed to obtain a mixed solution. Specifically, the lead iodide and the iodoformamidine can be synthesized in a laboratory, the lead iodide and the iodoformamidine are weighed according to the molar ratio of 1: 1-1.1: 1, a solvent is added, and the mixed solution is subjected to ultrasonic treatment until the mixed solution is completely dissolved, so that the mixed solution with the concentration of 1-1.5 mol/L is obtained. It should be noted that the type of the solvent is not particularly limited, and may be arbitrarily selected by those skilled in the art according to actual needs, and for example, the solvent includes at least one of γ -butyrolactone, acetonitrile, 2-methoxyethanol, and N, N-dimethylformamide. The inventor finds that: if the molar ratio of the lead iodide to the iodoformamidine is too large or too small, incomplete reaction and residue are caused, and the waste of raw materials is caused. Meanwhile, if the concentration of the mixed solution is too high, the raw materials cannot be fully dissolved; if the concentration of the mixed solution is too low, more anti-solvent may be required for FAPBI3The powder precipitates, causing a waste of solvent.
S200: mixing the mixed solution and the anti-solvent, and then carrying out solid-liquid separation
In this step, the mixed solution and the antisolvent are mixed and then subjected to solid-liquid separation to obtain a filter cake. Specifically, under stirring conditions, the anti-solvent is slowly added, and the volume ratio of the solvent to the anti-solvent is 1: (2-5) obtaining FAPbI by a normal temperature antisolvent precipitation method3Precipitating to improve yield, and performing solid-liquid separation such as suction filtration to obtain FAPBI3And (3) filtering a cake. It is to be noted that the type of the antisolvent is not particularly limited, and may be arbitrarily selected by those skilled in the art according to practical circumstances, and includes at least one of ethyl acetate, chlorobenzene, and toluene. The inventors found that the volume ratio of solvent to anti-solvent was 1: (2-5), too little anti-solvent will result in low yield, and too much anti-solvent will result in waste of solvent.
S300: heating the filter cake at 110-150 deg.C
In the step, the filter cake is heated at 110-150 ℃ so as to obtain alpha-FAPBI3And (3) powder. In particular toTransferring the filter cake into an evaporation dish, then placing the evaporation dish on a heating plate for heating, and obtaining dry bright yellow powder when the heating is carried out to 80-100 ℃, namely delta-FAPBI3Continuously heating the powder to the temperature of 110-150 ℃ to obtain dry bright black powder, namely alpha-FAPBI3And (3) powder.
Preparation of alpha-FAPBI according to embodiments of the invention3The powder method comprises the steps of mixing lead iodide, iodoformamidine and a solvent to obtain a mixed solution, wherein the lead iodide and the iodoformamidine can be synthesized in a laboratory, high-purity reaction raw materials are avoided, the cost is reduced, and FAPBI is subjected to normal-temperature anti-solvent precipitation and solid-liquid separation treatment to obtain the FAPBI3Crystals are separated out from the solution to obtain a filter cake, so that the yield is improved, and finally the filter cake is heated at the temperature of 110-150 ℃ to obtain the alpha-FAPBI3And (3) powder. Thus, the preparation of alpha-FAPBI using the present application3The powder process has the following advantages: (1) high-purity reaction raw materials are avoided, so that the cost is reduced; (2) precipitation of FAPBI with anti-solvent at room temperature3Crystals and mild reaction conditions; (3) the method avoids using a large amount of toxic solvent, and is suitable for green and safe production; (4) increased alpha-FAPBI3Yield of powder. Thus, the alpha-FAPBI obtained by the method3The perovskite battery prepared from the powder can reduce the production cost, solve the problem that the photovoltaic performance of the perovskite battery in the prior art is not repeatable, and is beneficial to large-scale production and application.
Further, referring to fig. 2, the above method of the present invention further includes:
s400: will alpha-FAPBI3The powder is treated in a gaseous atmosphere containing hydrogen sulfate radicals
In the step, the alpha-FAPBI is added3The powder is treated in a gas atmosphere containing hydrosulfate to change the crystal orientation, and certain parts of the sharing face octahedron on the interface begin to form a Pb-I-SCN structure with sharing angles, so that alpha-FAPBI can be promoted3And (4) stabilizing the crystalline phase. It is to be noted that the type of the gas containing a hydrogensulfate is not particularly limited, and those skilled in the artThe agent can be optionally selected according to actual conditions, and includes MASCN (methylamine thiocyanate), FASCN (formamidine thiocyanate) and NH4At least one of SCNs.
In a second aspect, the invention provides an alpha-FAPBI3And (3) powder. According to the embodiment of the invention, the alpha-FAPBI3The powder is prepared by the method. Thus, the alpha-FAPBI obtained by the method3The perovskite battery prepared from the powder can reduce the production cost, solve the problem that the photovoltaic performance of the perovskite battery in the prior art is not repeatable, and is beneficial to large-scale production and application. It is noted that the above is directed to the preparation of alpha-FAPBI3The features and advantages described for the powder process apply equally to the alpha-FAPBI3Powders, which are not described in detail herein.
In a third aspect of the invention, a perovskite solar cell is presented. According to the embodiment of the invention, the perovskite solar cell adopts the alpha-FAPBI obtained by the method3Powder or the above-mentioned alpha-FAPBI3And (3) preparing powder. Thus, the above-mentioned alpha-FAPBI is adopted3The perovskite solar cell prepared from the powder can reduce cost and solve the problem that the photovoltaic performance of the perovskite solar cell in the prior art is not repeatable. It should be noted that the above description is directed to alpha-FAPBI3The features and advantages described for the powder and the method for its preparation are equally applicable to the perovskite solar cell and will not be described in further detail here.
The following embodiments of the present invention are described in detail, and it should be noted that the following embodiments are exemplary only, and are not to be construed as limiting the present invention. In addition, all reagents used in the following examples are commercially available or can be synthesized according to methods herein or known, and are readily available to those skilled in the art for reaction conditions not listed, if not explicitly stated.
Example 1
(1) 2.11g of iodoformamidine synthesized in the laboratory and 5.67g of lead iodide synthesized in the laboratory were weighed out and 10mL of gamma-butyrolactone was added thereto and then the mixture was calcined in 100mL of one potBottle, prepared into FAPBI of 1.23mol/L3Putting the flask into an ultrasonic cleaning machine for ultrasonic treatment until the raw materials are completely dissolved, wherein the solution becomes bright yellow clear liquid;
(2) the flask was equipped with a rotator, vigorously stirred on a magnetic stirrer, and 30mL of ethyl acetate was slowly added to the flask, and the formation of a yellow powder precipitate was observed, and then the above solution was filtered to give yellow FAPBI3A filter cake;
(3) transferring the filter cake to an evaporation dish, drying the filter cake on a heating plate, and obtaining dry bright yellow delta-FAPBI when the temperature of the heating plate is 90 DEG C3Drying the powder at 150 ℃ for a period of time to obtain dry bright black alpha-FAPBI3Powder;
(4) treatment of alpha-FAPBI at 100 ℃ in a formamidine thiocyanate atmosphere3And (3) powder.
Example 2
(1) Weighing 2.58g of iodoformamidine synthesized in the laboratory and 6.92g of lead iodide synthesized in the laboratory, adding 10mL of 2-methoxyethanol into a 100mL single-neck flask, and preparing into 1.5mol/L FAPBI3Putting the flask into an ultrasonic cleaning machine for ultrasonic treatment until the raw materials are completely dissolved, wherein the solution becomes bright yellow clear liquid;
(2) placing a rotor in a flask, stirring vigorously on a magnetic stirrer, slowly adding 50mL of diethyl ether into the flask, observing the formation of yellow powder precipitate, and filtering the solution to obtain yellow FAPBI3A filter cake;
(3) transferring the filter cake to an evaporation dish, drying on a heating plate, and obtaining dry bright yellow delta-FAPBI when the temperature of the heating plate is 85 DEG C3Drying the powder at 150 ℃ for a period of time to obtain dry bright black alpha-FAPBI3Powder;
(4) containing NH at 100 ℃4Treatment of alpha-FAPBI in SCN atmosphere3And (3) powder.
Example 3
(1) 1.72g of iodoformamidine synthesized in the laboratory and 5.07g of lead iodide synthesized in the laboratory were weighed, 10mL of gamma-butyrolactone was added in a 100mL single-neck flask,prepared into FAPBI of 1.0mol/L3Putting the flask into an ultrasonic cleaning machine for ultrasonic treatment until the raw materials are completely dissolved, wherein the solution becomes bright yellow clear liquid;
(2) placing a rotor in a flask, stirring vigorously on a magnetic stirrer, slowly adding 50mL of diethyl ether into the flask, observing the formation of yellow powder precipitate, and filtering the solution to obtain yellow FAPBI3A filter cake;
(3) transferring the filter cake to an evaporation dish, drying the filter cake on a heating plate, and obtaining dry bright yellow delta-FAPBI when the temperature of the heating plate is 93 DEG C3Drying the powder at 150 ℃ for a period of time to obtain dry bright black alpha-FAPBI3Powder;
(4) treating alpha-FAPBI in an atmosphere containing MASCN at 100 DEG C3And (3) powder.
The final treatment of the above examples 1-3 resulted in alpha-FAPBI3The stability of the powder in the crystalline phase was evaluated.
α-FAPbI3Evaluation method of crystalline phase stability of powder: and placing the finally obtained powder sample in an environment with the temperature of 25 ℃ and the humidity of 35%, and performing XRD test after placing for 0h, 50h, 100h, 150h and 200h respectively.
Stability evaluation results: as can be seen from XRD patterns of the final powders obtained in examples 1-3 at different times, the alpha-FAPBI finally obtained in examples 1-3 can be obtained within 200h3The powder did not undergo a phase change, indicating that FAPBI synthesized in examples 1-33After the powder is treated at high temperature and in atmosphere, the stability is greatly improved.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. Preparation of alpha-FAPBI3A method of powdering, comprising:
(1) mixing lead iodide, amitraz iodide and a solvent to obtain a mixed solution;
(2) mixing the mixed solution and an anti-solvent, and then carrying out solid-liquid separation to obtain a filter cake;
(3) heating the filter cake at 110-150 ℃ to obtain alpha-FAPBI3And (3) powder.
2. The method of claim 1, wherein in step (1), the molar ratio of the lead iodide to the iodoformamidine is (1-1.1): 1.
3. The process according to claim 1 or 2, wherein in step (1), the solvent comprises at least one of γ -butyrolactone, acetonitrile, 2-methoxyethanol, N-dimethylformamide.
4. The method according to claim 1, wherein in the step (1), the concentration of the mixed solution is 1 to 1.5 mol/L.
5. The method of claim 1, wherein in step (2), the anti-solvent comprises at least one of ethyl acetate, chlorobenzene, and toluene.
6. The process according to claim 1 or 5, wherein in step (2), the volume ratio of the solvent to the anti-solvent is 1: (2-5).
7. The method of claim 1, further comprising: (4) converting the alpha-FAPBI3The powder is treated in a gaseous atmosphere containing a hydrogen sulfate radical.
8. The method of claim 7, wherein in step (4), the gas containing sulfate comprises MASCN, FASCN and NH4At least one of SCNs.
9. alpha-FAPBI3Powder, characterized in that the alpha-FAPBI3A powder produced by the method of any one of claims 1 to 8.
10. A perovskite solar cell, characterized in that the perovskite solar cell is obtained by using the method of any one of claims 1 to 8 for the production of α -FAPbI3Powder or alpha-FAPBI as claimed in claim 93And (3) preparing powder.
CN202110252152.0A 2021-03-08 2021-03-08 α-FAPbI3Powder, preparation method thereof and perovskite solar cell Pending CN113149866A (en)

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CN115287741A (en) * 2022-04-29 2022-11-04 中山复元新材料科技有限责任公司 Perovskite crystal black-phase formamidine lead iodide crystal form and preparation method thereof
CN115835659A (en) * 2023-02-22 2023-03-21 北京科技大学 Hybrid perovskite solar cell and preparation method thereof
WO2023173242A1 (en) * 2022-03-14 2023-09-21 中国科学院深圳先进技术研究院 α-FAPBI3 PEROVSKITE QUANTUM DOT AND PREPARATION METHOD THEREFOR, AND PHOTOELECTRIC DEVICE

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WO2023173242A1 (en) * 2022-03-14 2023-09-21 中国科学院深圳先进技术研究院 α-FAPBI3 PEROVSKITE QUANTUM DOT AND PREPARATION METHOD THEREFOR, AND PHOTOELECTRIC DEVICE
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CN115835659A (en) * 2023-02-22 2023-03-21 北京科技大学 Hybrid perovskite solar cell and preparation method thereof

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