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Doped perovskite thin film solar cell and preparation method thereof

A solar cell, perovskite type technology, applied in the field of solar cells, can solve the problems of polluted environment, unsatisfactory photoelectric conversion efficiency of tin perovskite solar cells, etc. Effect

Inactive Publication Date: 2017-09-12
RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a kind of doped perovskite type thin-film solar cell and its preparation method, to solve the pollution environment of existing perovskite solar cells and existing tin perovskite solar cells Technical problems of unsatisfactory photoelectric conversion efficiency

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  • Doped perovskite thin film solar cell and preparation method thereof
  • Doped perovskite thin film solar cell and preparation method thereof
  • Doped perovskite thin film solar cell and preparation method thereof

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preparation example Construction

[0030] On the other hand, on the basis of the perovskite-type thin-film solar cell doped in the embodiment of the present invention described above, the embodiment of the present invention also provides a kind of perovskite-type thin-film solar cell doped in the embodiment of the present invention Preparation. The preparation method of the embodiment of the present invention doped perovskite thin film solar cell is as follows figure 2 Therefore, see also figure 1 , its preparation method comprises the following steps:

[0031] S01. Forming an electron transport layer 2 and a mesoporous titanium dioxide layer 3 sequentially on the surface of the transparent conductive substrate 1;

[0032] S02. Forming a halogen-doped tin perovskite layer 4 on the outer surface of the mesoporous titania layer 3: CH 3 NH 3 X is dissolved in an organic solvent containing tin halide to form a perovskite solution, and the perovskite solution is coated on the outer surface of the mesoporous titan...

Embodiment 1

[0050] Embodiments of the present invention provide a doped perovskite thin film solar cell and a preparation method thereof. Among them, the doped perovskite thin film solar cell structure is: FTO / dense TiO 2 / Mesoporous TiO 2 / halogen-doped tin perovskite / HTM / Ag.

[0051] Its preparation method is as follows:

[0052] S11. Substrate treatment: cut the substrate FTO conductive glass into 30x30mm, and use alkaline cleaning solution, acetone, isopropanol and high-purity deionized water to ultrasonically clean for 15 minutes, blow dry with nitrogen, and then use a UV cleaning machine to clean the substrate surface Ozone was cleaned for 10 minutes, then it was put into a vacuum drying oven for subsequent use;

[0053] S12. Preparation of dense titanium dioxide layer: firstly, 68 mL of tetrabutyl titanate and 16.5 mL of diethanolamine were dissolved in 210 mL of ethanol to prepare solution A. Then make B by mixing 3.6 mL of deionized water and 100 mL of alcohol. Stir the solu...

Embodiment 2

[0059] Embodiments of the present invention provide a doped perovskite thin film solar cell and a preparation method thereof. Among them, the doped perovskite thin film solar cell structure is: FTO / dense TiO 2 / Mesoporous TiO 2 / halogen-doped tin perovskite / HTM / Ag.

[0060] Its preparation method is as follows:

[0061] S11. Substrate treatment: cut the substrate FTO conductive glass into 30x30mm, and use alkaline cleaning solution, acetone, isopropanol and high-purity deionized water to ultrasonically clean for 15 minutes, blow dry with nitrogen, and then use a UV cleaning machine to clean the substrate surface Ozone was cleaned for 10 minutes, then it was put into a vacuum drying oven for subsequent use;

[0062] S12. Preparation of dense titanium dioxide layer: firstly, 68 mL of tetrabutyl titanate and 16.5 mL of diethanolamine were dissolved in 210 mL of ethanol to prepare solution A. Then make B by mixing 3.6 mL of deionized water and 100 mL of alcohol. Stir the solu...

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Abstract

The invention discloses a doped perovskite thin film solar cell and a preparation method thereof. The doped perovskite type thin film solar cell includes a transparent conductive substrate, and an electron transport layer, a mesoporous titania layer, a perovskite light absorption layer, a hole transport layer and an electrode which are laminated in this order on the surface of the transparent conductive substrate. The material of the perovskite light absorber layer is halogen-doped tin perovskite, and the halogen is mainly Br and I. The preparation method comprises the steps of sequentially forming an electron transport layer, a mesoporous titania layer, a tin perovskite layer, a hole transport layer and an electrode on the surface of a transparent conductive substrate. The doped perovskite type thin film solar cell has no environmental pollution, strong light absorption ability and photoelectric conversion efficiency. The preparation method is simple and easy to operate and high in production efficiency, so as to reduce the production cost.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a doped perovskite thin-film solar cell and a preparation method thereof. Background technique [0002] Perovskite solar cell (PVSK) is a new type of organic-inorganic composite solar cell that uses MAPbX3 as a light-absorbing material and cooperates with electron and hole transport materials. Its thickness before packaging is only a few microns, far thinner than traditional thin-film solar cells such as amorphous silicon and CIGS, and its cost is only one-third of other solar silicon cell components. [0003] Perovskite solar cells have become one of the most important research hotspots in the field of photovoltaics today due to their extremely fast development speed and excellent performance. At the beginning, the photoelectric conversion efficiency of the cells was only 3.8%. In early 2014, Korea Chemical Technology Research Institute ( KRICT) increased this e...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/30H10K30/151Y02E10/549Y02P70/50
Inventor 檀满林杨帅马清张维丽符冬菊李冬霜王晓伟陈建军
Owner RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
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