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Perovskite solar cell and preparation method thereof

A solar cell and perovskite technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of short battery life, difficulty in large-scale production, and low photoelectric conversion efficiency

Inactive Publication Date: 2019-04-23
WUXI UTMOST LIGHT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The inventors of the present invention found in the research process that the solar cells at this stage have the problems of low photoelectric conversion efficiency and short life of the battery pack. The prior art generally uses a solution method to introduce up-conversion materials or down-conversion materials into perovskite In solar cells, however, this approach is difficult to apply to industrial mass production

Method used

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  • Perovskite solar cell and preparation method thereof
  • Perovskite solar cell and preparation method thereof
  • Perovskite solar cell and preparation method thereof

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preparation example Construction

[0058] In one aspect of the invention, the invention proposes a method for preparing a perovskite solar cell. According to an embodiment of the present invention, refer to image 3 , the preparation method comprises:

[0059] S100: forming a negative electrode on the surface of the transparent substrate.

[0060] In this step, the negative electrode 200 is formed on the surface of the transparent substrate 100 . According to the embodiment of the present invention, the specific method for forming the negative electrode 200 is not limited, and those skilled in the art can make a corresponding selection according to the specific raw materials for forming the negative electrode 200 .

[0061] In some embodiments of the present invention, the raw material for forming the negative electrode 200 may include at least one of carbon nanotubes and metal nanowires, then step S100 may include: spraying the suspension containing the raw material for the negative electrode 200 and the sol...

Embodiment 1

[0084] In this example, a perovskite solar cell was fabricated. The specific steps are as follows: (1) Spray the suspension formed by carbon nanotubes and ethanol with a content of 0.1wt% onto a glass substrate heated at 80° C. with a spray gun, and form a layer on the glass surface after the ethanol volatilizes. Layer carbon nanotube transparent network electrode; (2) utilize magnetron sputtering method to sputter and dope 1mol% Er on the electrode surface again 3+ Ca 0.7 Sr 0.3 SiO 4 , the thickness of the sputtering is 50nm; (3) then the electron transport layer, the perovskite layer and the hole transport layer are sequentially prepared by the evaporation method; (4) the gold (Au) electrode of sputtering 300nm; (5) finally, in The surface of the gold electrode was sputtered with 2mol% Ho 3+ NaYF 4 , the thickness of sputtering is 60nm, and a perovskite solar cell with frequency domain conversion material can be obtained.

Embodiment 2

[0086] In this example, a perovskite solar cell was fabricated. Concrete steps are as follows: (1) form suspension liquid with the silver nanowire and ethanol that diameter is 50nm, length is 25 microns, and wherein, the content of silver nanowire is 0.5wt%, and the suspension liquid is sprayed to 80 ℃ heating with spray gun On the glass substrate, a layer of silver nanowire transparent network electrode is formed on the glass surface after the ethanol volatilizes; (2) use magnetron sputtering method to sputter and dope 1.5mol% Mn on the electrode surface 2+ Na 3 YSi 2 o 7 , the thickness of sputtering de1 is 30nm; (3) then adopt the evaporation method to sequentially prepare electron transport layer, perovskite layer and hole transport layer; (4) sputter 300nm silver (Ag) electrode; (4) finally, in The surface of the silver electrode is sputtered with 1.6mol% Gd 3+ NaY(WO 4 ) 2 , the thickness of sputtering is 50nm, and a perovskite solar cell with frequency domain conv...

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Abstract

The invention provides a perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a transparent substrate arranged in a stacked layer, a negative electrode, a down-conversion luminescent layer, an electron transfer layer, a perovskite layer, a hole transport layer, an up-conversion luminescent layer and a positive electrode, wherein the down-conversion luminescent layer is arranged between the negative electrode and the electron transport layer. The perovskite solar cell has the advantages that the down-conversion luminescent layer and the up-conversion luminescent layer are respectively additionally arranged on the upper surface and the lower surface of the perovskite solar cell, so that ultraviolet light and infrared light which cannot be absorbed by the perovskite solar cell can be converted into visible light, the utilization rate of sunlight is increased, the photoelectric conversion efficiency of the perovskite solar cell is further improved, and the long-term stability of the solar cell can be enhanced.

Description

technical field [0001] The invention relates to the technical field of solar cell manufacturing, in particular, the invention relates to a perovskite solar cell and a preparation method thereof. Background technique [0002] As a clean, pollution-free and renewable energy source, solar energy will make a significant contribution to the progress and development of human society if it can be fully utilized. A solar cell refers to a photoelectric conversion device that directly converts light energy into electrical energy under the irradiation of sunlight, and is one of the important ways to effectively utilize solar energy. Solar cell power generation is conducive to solving the current and future energy crisis problems. It is estimated that if 0.4% of the world's land area is covered with solar panels with a photoelectric conversion efficiency of 10%, the electricity generated by it can meet the global energy demand. Therefore, vigorously developing solar cell power generat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/44H01L51/48
CPCH10K71/16H10K30/87Y02E10/549H10K85/50
Inventor 李明洁樊新召
Owner WUXI UTMOST LIGHT TECH CO LTD
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