Organic-inorganic perovskite solar cell and preparation and recovery method thereof

A technology of solar cells and inorganic calcium, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as the inability to form thin films, reduce the energy conversion efficiency of metal-organic-inorganic perovskite solar cells, and the inability to eliminate complex preparation techniques, etc. , to achieve the effect of maintaining integrity, excellent photovoltaic efficiency and stability, and excellent photovoltaic efficiency

Active Publication Date: 2020-04-24
SHANGHAI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Organic-inorganic perovskite solar cell and preparation and recovery method thereof
  • Organic-inorganic perovskite solar cell and preparation and recovery method thereof
  • Organic-inorganic perovskite solar cell and preparation and recovery method thereof

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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

The invention discloses an organic-inorganic perovskite solar cell. The organic-inorganic perovskite solar cell structurally comprises an ITO electrode substrate, a SnO2 electron transport layer, a perovskite material active layer, a hole transport layer and a nano porous gold film in sequence. The nano porous gold film is specifically prepared by the steps of keeping a gold-silver alloy film in nitric acid with the concentration of 69wt% for 6h, then cleaning the nano porous gold film for three times by adopting deionized water, and carrying out drying treatment. According to the invention, the porous metal film electrode is transferred to the organic-inorganic perovskite solar cell by a simple transfer technology, so that the preparation process is simplified, the energy consumption is reduced, and the preparation cost is saved. The short-circuit current density of the prepared organic-inorganic perovskite solar cell reaches 21.1 mA/cm <2>, and 19.0% of high conversion efficiency isobtained. The stability is good. Consumption of precious metal materials is reduced, and metal environmental pollution is reduced. A foundation is laid for commercial application of organic-inorganicperovskite 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 Applications(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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