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An organic-inorganic perovskite solar cell and its preparation and recycling method

A solar cell and inorganic calcium technology, applied in circuits, electrical components, photovoltaic power generation, etc., can solve the problems of reducing the energy conversion efficiency of metal-organic-inorganic perovskite solar cells, the inability to form thin films, and the inability to eliminate complex preparation techniques , to achieve the effect of saving preparation cost, reducing preparation cost and reducing energy return time

Active Publication Date: 2021-06-22
SHANGHAI UNIV +1
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Problems solved by technology

However, these technical solutions cannot eliminate the traditional complex preparation technology of vacuum evaporation.
Moreover, the recycling of these electrodes greatly reduces the energy conversion efficiency of metal-organic-inorganic perovskite solar cells.
Because in these structures, metal-organic-inorganic perovskite materials cannot form flat films, resulting in different carrier transport distances and carrier recombination losses.

Method used

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  • An organic-inorganic perovskite solar cell and its preparation and recycling method

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Embodiment 1

[0054] A preparation method of an organic-inorganic perovskite solar cell is carried out according to the following steps:

[0055] (1) ITO substrate preparation pretreatment

[0056] Spray the zinc oxide powder evenly on the surface of the ITO substrate 1, clean it with hydrochloric acid with a concentration of 6M, and then clean it with a detergent with a concentration of 1 wt% to remove oil stains, and then use acetone, isopropanol and deionized water for ultrasonic cleaning in sequence. Each sonication step was 10 min. Dry the cleaned ITO substrate 1 with an air gun and cut it into 25×25mm 2 The flakes are stored in a dry box, and the detergent is a commercially available conventional detergent;

[0057] (2) Electron transport layer preparation (I)

[0058] The ITO substrate 1 was treated with ozone for 15min, and then 15wt% of SnO 2 The nanoparticle aqueous solution plus deionized water is made into a 5wt% aqueous solution as a spin coating solution. Spin coating is c...

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Abstract

An organic-inorganic perovskite solar cell whose structural composition is ITO electrode substrate / SnO 2 Electron transport layer / active layer of perovskite material / hole transport layer / nanoporous gold film. Specifically, the nanoporous gold film is kept in 69wt% nitric acid for 6 hours, and then the nanoporous gold film is washed three times with deionized water and dried. The simple transfer technology of the invention transfers the porous metal film electrode to the organic-inorganic perovskite solar cell, simplifies the preparation process, reduces energy consumption, and saves preparation cost. The prepared organic-inorganic perovskite solar cell has a short-circuit current density of 21.1mA / cm 2 , obtained a high conversion efficiency of 19.0%, and good stability. Reducing the consumption of precious metal materials and reducing metal environmental pollution will lay the foundation for the commercial application of organic-inorganic perovskite solar cells.

Description

technical field [0001] The invention belongs to the technical field of perovskite solar cells, and in particular relates to an organic-inorganic perovskite solar cell and its preparation, recycling and application method. Background technique [0002] In recent years, the energy conversion efficiency of metal-organic-inorganic perovskite solar cells has increased unprecedentedly to 25.2%, which has attracted worldwide attention. The rapid growth in the efficiency of metal-organic-inorganic perovskite solar cells is mainly due to its excellent properties Metal-organic-inorganic perovskite materials, such as strong light absorption coefficient in the visible range, long-range carrier diffusion ability, low exciton binding energy, high carrier mobility, and variable energy bands. Metal-organic-inorganic perovskite solar cell components are mainly composed of glass substrate / electrode / carrier transport layer / active layer of perovskite material / carrier transport layer / contact ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K71/00H10K71/10H10K71/12H10K30/10H10K30/80Y02E10/549
Inventor 王生浩杨丰桕松田一成若宫淳志陈庐阳
Owner SHANGHAI UNIV
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