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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 photoelectric conversion efficiency to be further improved, poor stability, etc., to achieve high visible light transmittance, improved stability, and good extension. sexual effect

Pending Publication Date: 2022-01-14
CHINA TRIUMPH INT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the main reason why perovskite solar cells cannot be industrialized is that their stability is poor, and the photoelectric conversion efficiency needs to be further improved.

Method used

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

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Embodiment 1

[0040] This embodiment is a method for preparing a perovskite solar cell without an electron transport layer, and the preparation process is as follows:

[0041] a) Provide ultra-clear float glass with a thickness of 3.2 mm, ultrasonically clean it in deionized water and absolute ethanol for 10 minutes, and blow dry;

[0042] b) On the upper surface of the cleaned ultra-clear float glass, a dielectric layer of SnO was sequentially deposited by magnetron sputtering. 2 , metal Ag layer, multifunctional SnO 2 layer to form a multilayer film electrode. The thickness thereof is 50 nm, 10 nm, and 50 nm, respectively.

[0043] Among them, SnO 2 Layer preparation process parameters and process are as follows:

[0044] 1) Before coating, use mechanical pump and molecular pump to vacuum the coating chamber to 7×10 -4 Below Pa.

[0045] 2) Select tin oxide ceramic target, sputtering gas with Ar, O at a ratio of 19:1 2 , and select the RF power supply.

[0046] 3) Passing Ar, O 2...

Embodiment 2

[0063] This embodiment is a method for preparing a perovskite solar cell without an electron transport layer, and the preparation process is as follows:

[0064] a) Provide a PET substrate, ultrasonically clean it in absolute ethanol for 10 minutes, and dry it;

[0065] b) On the upper surface of the cleaned PET flexible substrate, a dielectric layer SnO is sequentially deposited by magnetron sputtering 2 , metal Ag layer, nano-suppression layer NiCr, multifunctional SnO 2 layer. The thickness thereof is 50 nm, 8 nm, 1 nm, and 50 nm, respectively.

[0066] Among them, SnO 2 Layer preparation process parameters and process are as follows:

[0067] 1) Before coating, use mechanical pump and molecular pump to vacuum the coating chamber to 7×10 -4 Below Pa.

[0068] 2) Select tin oxide ceramic target, sputtering gas with Ar, O at a ratio of 19:1 2 , and select the RF power supply.

[0069] 3) Passing Ar, O 2 The mixed gas, adjust the pressure to 2Pa.

[0070] 5) Adjust t...

Embodiment 3

[0092] This embodiment is a method for preparing a perovskite solar cell. The perovskite solar cell includes a substrate layer, a dielectric layer, a metal conductive layer, a multifunctional layer, an electron transport layer, and a perovskite active layer arranged in sequence from bottom to top. , hole transport layer and back electrode layer.

[0093] The preparation process is as follows:

[0094] a) Provide 30 μm flexible foldable glass, ultrasonically clean it in absolute ethanol for 10 minutes, and blow dry;

[0095] b) On the upper surface of the cleaned flexible and foldable glass, a dielectric layer of SnO is sequentially deposited by magnetron sputtering 2 , metal Ag layer, multifunctional SnO 2 layer. Their thicknesses are 50nm, 8nm, and 50nm, respectively.

[0096] Among them, SnO 2 Layer preparation process parameters and process are as follows:

[0097] 1) Before coating, use mechanical pump and molecular pump to vacuum the coating chamber to 7×10 -4 Belo...

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Abstract

The invention discloses a perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a substrate layer, a dielectric layer, a metal conductive layer, a multifunctional layer, a perovskite active layer, a hole transport layer and a back electrode layer which are sequentially arranged from bottom to top. According to the perovskite solar cell provided by the invention, the multilayer film electrode containing the nano metal layer is used as an electrode material, so that the perovskite solar cell has extremely high visible light transmittance and good conductivity, and a guarantee is provided for improving the photoelectric conversion efficiency of the perovskite solar cell. Meanwhile, the nanoscale metal layer has good ductility, oxide crystal grains are small, preparation on the flexible substrate is easy, and the problem of mechanical brittleness of a traditional TCO transparent electrode is solved. Besides, the appropriate nanometer metal layer also has the characteristics of high transmission of visible light and reduction of infrared radiation rate, the light incident to the perovskite cell is filtered into a cold light source, the heat transmitted to the cell is reduced, and the stability of the perovskite solar cell is further improved.

Description

technical field [0001] The invention relates to the technical field of perovskite solar cells, in particular to a perovskite solar cell and a preparation method thereof. Background technique [0002] Perovskite solar cells are a new type of solar cells that are booming. Scientists have found that the conversion efficiency of new perovskite solar cells may be as high as 50%, which is twice the conversion efficiency of solar cells currently on the market; at the same time, perovskite solar cells have a simple manufacturing process, low battery power generation costs, and superior performance And the huge development potential indicates that it has the ability to subvert the existing photovoltaic pattern. At present, the main reason why perovskite solar cells cannot be industrialized is that their stability is poor, and the photoelectric conversion efficiency needs to be further improved. [0003] Therefore, it is necessary to develop a new type of perovskite solar cell that ...

Claims

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Application Information

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IPC IPC(8): H01L51/44H01L51/46H01L51/42H01L51/48B82Y30/00
CPCB82Y30/00H10K71/00H10K30/82H10K30/30H10K2102/00Y02E10/549
Inventor 彭寿王伟盖琳琳王川申刘晓鹏周文彩齐帅于浩曾红杰
Owner CHINA TRIUMPH INT ENG
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