Solar cell device taking two-dimensional perovskite material as light absorption layer and preparation method thereof

A perovskite material and solar cell technology, applied in the field of photovoltaics, can solve the problems of low efficiency of two-dimensional perovskite solar cells, achieve the effects of increasing extraction, transmission and collection efficiency, good vertical orientation, and improving device performance

Active Publication Date: 2021-01-01
CHANGZHOU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of low efficiency of two-dimensional perovskite solar cells, the present invention provides a two-dimensional RP perovskite solar cell and its preparation method. By designing the combination of cations, the d

Method used

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  • Solar cell device taking two-dimensional perovskite material as light absorption layer and preparation method thereof
  • Solar cell device taking two-dimensional perovskite material as light absorption layer and preparation method thereof
  • Solar cell device taking two-dimensional perovskite material as light absorption layer and preparation method thereof

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Embodiment 1

[0030] A two-dimensional RP perovskite solar cell sequentially comprises a conductive glass layer, a dense electron transport layer, a perovskite light-absorbing layer, a hole transport layer and an electrode layer from bottom to top.

[0031] The preparation method of above-mentioned perovskite solar cell, comprises the following steps:

[0032] (1) Preparation of dense electron transport layer: TiO was prepared on the FTO conductive glass layer by hydrothermal reaction method 2 Dense electron transport layer;

[0033] (2) Preparation of perovskite light-absorbing layer: Spin coating (PyA 0.9 GA 0.1 ) 2 (MA 0.64 Cs 0.02 FA 0.34 ) 4 Pb 5 I 16 Perovskite solution to the electron transport layer, anneal at 100°C for 15 minutes after spin coating, and crystallize the perovskite light-absorbing layer;

[0034] The preparation method of the two-dimensional perovskite precursor is as follows: set the Pb concentration to 1M, calculate other materials according to the chemic...

Embodiment 2

[0039] A two-dimensional RP perovskite solar cell sequentially comprises a conductive glass layer, a dense electron transport layer, a perovskite light-absorbing layer, a hole transport layer and an electrode layer from bottom to top.

[0040] The preparation method of above-mentioned perovskite solar cell, comprises the following steps:

[0041] (1) Preparation of dense electron transport layer: TiO was prepared on the FTO conductive glass layer by hydrothermal reaction method 2 Dense electron transport layer;

[0042] (2) Preparation of perovskite light-absorbing layer: Spin coating (PyA 0.8 GA 0.2 ) 2 (MA 0.64 Cs 0.02 FA0.34 ) 4 Pb 5 I 16 Perovskite solution to the electron transport layer, anneal at 100°C for 15 minutes after spin coating, and crystallize the perovskite light-absorbing layer;

[0043] The preparation method of the two-dimensional perovskite precursor is as follows: set the Pb concentration to 1M, calculate other materials according to the chemical...

Embodiment 3

[0048] A two-dimensional RP perovskite solar cell sequentially comprises a conductive glass layer, a dense electron transport layer, a perovskite light-absorbing layer, a hole transport layer and an electrode layer from bottom to top.

[0049] The preparation method of above-mentioned perovskite solar cell comprises the following steps:

[0050] (1) Preparation of dense electron transport layer: TiO was prepared on the FTO conductive glass layer by hydrothermal reaction method 2 Dense electron transport layer;

[0051] (2) Preparation of perovskite light-absorbing layer: Spin coating (PyA 0.7 GA 0.3 ) 2 (MA 0.64 Cs 0.02 FA 0.34 ) 4 Pb 5 I 16 Perovskite solution to the electron transport layer, anneal at 100°C for 15 minutes after spin coating, and crystallize the perovskite light-absorbing layer;

[0052] The preparation method of the two-dimensional perovskite precursor is as follows: set the Pb concentration to 1M, calculate other materials according to the chemica...

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Abstract

The invention belongs to the field of photovoltaics, and particularly relates to a solar cell device taking a two-dimensional perovskite material as a light absorption layer and a preparation method thereof. The solar cell sequentially comprises a conductive glass layer, a compact electron transport layer, a perovskite light absorption layer, a hole transport layer and an electrode layer from bottom to top. According to the invention, a simple one-step spin-coating method is adopted, and the perovskite light absorption layer in the device is subjected to component regulation and control, so that the efficient solar cell is obtained. According to the invention, through simple component regulation and control, the key problem that the carrier transport of the two-dimensional perovskite material is limited is effectively solved, and the problem that the photoelectric conversion performance of a quasi-two-dimensional perovskite solar cell is generally relatively low is solved at the same time.

Description

technical field [0001] The invention belongs to the field of photovoltaics, and in particular relates to a solar cell device with a two-dimensional perovskite material as a light-absorbing layer and a preparation method thereof. Background technique [0002] Three-dimensional organometal halide perovskite solar cells have achieved tremendous development in the past few years. The power conversion efficiency (PCE) of the device has risen rapidly, and the highest efficiency has exceeded 25%, largely surpassing organic photoelectricity, dye-sensitized solar cells, and even comparable to silicon thin-film cells. Despite the great success of 3D perovskites, they also face some problems, such as inherent instability under light, heat and humidity, which prevent the batteries from realizing a wide range of applications. These instabilities are mainly derived from the high hydrophilicity of organic cations and the weak interaction between cations and halide ions. [0003] It has r...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K71/40H10K85/361H10K30/151Y02E10/549
Inventor 丁建宁左晓昆袁宁一王书博
Owner CHANGZHOU UNIV
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