A two-dimensional carbon-based perovskite solar cell based on aminoquinoline ionic liquids

A technology of solar cells and ionic liquids, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems that affect the stability and service life of solar cell devices, hinder the commercial development of carbon-based perovskite solar cells, and limit the photoelectric conversion efficiency. For issues such as 6., achieve good market prospects and application value, maintain long-term stability and high efficiency, and accelerate commercial development

Active Publication Date: 2022-08-05
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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Problems solved by technology

In 2013, Huazhong University of Science and Technology Han et al. (Ku Z, Rong Y, Xu M, Liu T, Han H 2013 Sci.Rep.33132) used carbon materials as battery counter electrodes for the first time to prepare perovskite without hole transport layer solar cells, but the photoelectric conversion efficiency of the cell is only 6.64%, which is significantly lower than that of metal-based perovskite solar cells
For example, in 2016, the research team of Dalian University of Technology (F Zhang, X Yang, M Cheng, W Wang, L SunNano Energy 20, 108-116) used CuPc material as the hole transport layer and commercial carbon paste as the counter electrode to obtain high-efficiency solar cells. But carbon-based perovskite solar cells without a hole-transport layer are just 9% efficient
In the same year, Hong Kong University of Science and Technology Yang et al. (Chen H, Wei Z, He H, ZhengX, Wong KS, Yang S 2016 Adv.Energy Mater.61502087) used cyclohexane to modify the perovskite precursor solution so that there is no hole transport Layer carbon electrode structure efficiency reaches 14.34%, but MAPbI 3 Based on perovskite solar cells, the efficiency is only 9.75%
[0005] In addition, perovskite materials, as an emerging photosensitive material, still have the following deficiencies, such as poor stability of organometallic lead halide perovskite materials, and sensitivity to air environment. The performance drops sharply, which seriously affects the stability and service life of solar cell devices, hindering the commercial development of carbon-based perovskite solar cells

Method used

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  • A two-dimensional carbon-based perovskite solar cell based on aminoquinoline ionic liquids
  • A two-dimensional carbon-based perovskite solar cell based on aminoquinoline ionic liquids
  • A two-dimensional carbon-based perovskite solar cell based on aminoquinoline ionic liquids

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] like figure 1 It is shown that it is a hydrophobic amino amino-pyrine-like ionic liquid 1-The preparation method of hydrolytic acid sulfamulinal amine salt salt salt, including the following steps: the following steps:

[0057] S1. Add 2.05g 2-bromine hydride and 1.29g of pyrine to 50ml of water-free ethanol in turn. Under the protection of nitrogen, reacts at 75 ° C to 48h to a large amount of white solids. , Corporate removing solvents, washed the solid waterless ethanol three times to remove the unresponsible raw materials attached to the surface of the product, and the vacuum is dry for 24h;

[0058] S2. Solk the solid product obtained by the step S1 in the deodorized water, and then add the lithium of the Moor weight of the Moore weight. The stirring reaction is 4-6h. And wash multiple times with exfoliating water, yellow oil -shaped liquid vacuum is dry after drying;

[0059] S3. Solk the above oil products in methanol, modulate pH 10, and steam the solvent to be whit...

Embodiment 2

[0064] like Figure 7 It shows that this embodiment provides a two -dimensional carbon -based perovskite solar cell based on amino -pyrine -based ionic liquid that includes a transparent conductive electrode, electronic transmission layer stacked from bottom to top, electronic transmission layer, electronic transmission layer, and electronic transmission layers. Activation layer, perovskite light absorption layer and electrode.

[0065] Among them, the transparent conductive electrode is the FTO conductive glass; the electronic transmission layer is TIO 2 ; The medium layer is TIO 2 ; Permica light absorption layer is (ILNTF 2 Cure 2 (CH 3 Nh 3 Cure 9 PB 10 I 31 ; Electric carbon electrodes.

[0066] The above -mentioned method of two -dimensional carbon -based perovskite solar cells based on amino pyrine -based ionic liquid, including the following steps:

[0067] 1) FTO conductive glass pre -processing: The eroded FTO conductive glass is cleaned for 15min with deodorded water, ac...

Embodiment 3-10

[0078] Example 3-10 provides a two-dimensional carbon-based perovskite solar cell based on amino pyrine-based ionic liquid. Compared with Example 2, the difference is that it changes the preparation of two-dimensional carbon-to-lyric perovskite solar cells. Method Step 2) TIO in the TIO 2 During the preparation of the electronic transmission layer, the water thermal reaction temperature and reaction time. Except for the above differences, other operations are the same, and the specific experimental condition parameters are shown in the table as shown below.

[0079] Embodiment Temperature (℃) Time (min) 2 70 60 3 60 60 4 65 60 5 75 60 6 80 60 7 70 50 8 70 55 9 70 65 10 70 70

[0080] Example 2 to 10 two -dimensional carbon -based perovskite perovskite solar cell devices of solar cell devices are transformed by the result of the results of Figure 9 As shown in the medium (a) and (b), it can be seen from the result...

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Abstract

The invention discloses a two-dimensional carbon-based perovskite solar cell based on an aminoquinoline ionic liquid. The cell comprises a transparent conductive electrode, an electron transport layer, a mesoporous layer, and a perovskite light layer stacked sequentially from bottom to top. Absorber layer and counter electrode. The present invention uses hydrophobic ionic liquid 1-ethylamine hydroiodide quinoline bis-trifluoromethanesulfonimide salt ([ILNTF 2 ] + I ‑ ), CH 3 NH 3 I. Lead halide was used as raw material, and a new type of two-dimensional perovskite material was successfully prepared. 2 ] 2 (CH 3 NH 3 ) 9 Pb 10 X 31 Perovskite solar cells as light absorbing layers. In the invention, the perovskite solar cell system is prepared by combining the hydrophobic ionic liquid 1-ethylamine hydroiodide quinoline bistrifluoromethanesulfonimide salt with lead halide to form a perovskite structure into a perovskite solar cell system. The battery has the advantages of convenience, simplicity, economy, strong stability and high photoelectric conversion efficiency.

Description

Technical field [0001] The present invention involves the field of solar cell preparation technology, especially a two -dimensional carbon -based perovskite solar cell based on amino pyrine -based ionic liquid. Background technique [0002] Metal halide perovskite solar cells have direct gaps, high consolidation coefficients, high carrier migration rates, small excitement binding capacity, long load diffusion length and many other advantages. Rapid development, in just 10 years, battery efficiency increased from 3.8 % to 24.2 %. With the continuous improvement of battery efficiency, the stability and production cost of perovskite solar cells have become more and more concerned about researchers. However, the use of expensive metal electrodes as the electrode is not only high in cost, but also requires high -energy -consuming processes such as vacuum steaming plating to prepare. At the same time, it also needs expensive cave transmission materials. Therefore It has important pract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48C07D215/06C07C303/40C07C311/48
CPCC07D215/06C07C303/40H10K85/00H10K30/10C07C311/48Y02E10/549
Inventor 李春涯周雪王炎英
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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