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Perovskite solar cell and manufacturing method thereof

A solar cell and perovskite technology, applied in the field of solar cells, can solve problems such as the influence of solar cell product quality and pass rate, damage to the perovskite layer and hole transport layer, and poor contact, so as to facilitate charge exchange and avoid Poor contact or short circuit, the effect of reducing internal resistance

Inactive Publication Date: 2015-04-22
NANJING UNIV OF INFORMATION SCI & TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in the preparation process of perovskite solar cells, the perovskite light-absorbing material is deposited first, and finally the counter electrode layer is deposited by thermal evaporation technology. First, the perovskite and the hole transport layer are deposited, and then the counter electrode layer is deposited. It is very likely to damage the perovskite layer and the hole transport layer during the process, and there are problems of poor contact or short circuit, which will have a serious impact on the product quality and pass rate of solar cells.

Method used

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  • Perovskite solar cell and manufacturing method thereof
  • Perovskite solar cell and manufacturing method thereof
  • Perovskite solar cell and manufacturing method thereof

Examples

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Embodiment 1

[0029] see figure 1 and figure 2 , first, use an infrared laser (wavelength 1064 nanometers) to etch an insulating band 2 parallel to the side at a distance of 0.8 cm from the edge of one side on the conductive layer of FTO conductive glass with a size of 2.0 cm × 2.0 cm. The width of the insulating band 2 is 0.05 cm, divide the conductive glass into the positive electrode area 1 (0.8 cm × 2.0 cm in size) and the negative electrode area 3 (1.2 cm × 2.0 cm in size), so that the conductive layer cannot be completely conducted, and the conductive glass after etching is sequentially washed Ultrasonic cleaning with solvent, distilled water and absolute ethanol.

[0030] Then, a titanium tetrachloride solution with a mass concentration of 0.05% was sprayed on the surface of the negative electrode region 3 of the conductive glass at a temperature of 450°C to form a dense barrier layer 4 with a thickness of 22 nanometers.

[0031] Take 8g of zirconium dioxide powder with a particle...

Embodiment 2

[0035] see image 3 and figure 2 First use an infrared laser with a wavelength of 1064 nanometers to etch an insulating band 2 parallel to the side at a distance of 1.1 cm from the edge of one side of the conductive layer of FTO conductive glass with a size of 3.0 cm × 3.0 cm. The width of the insulating band 2 is 0.05 cm. , divide the conductive glass into positive electrode area 1 (1.1 cm × 3.0 cm in size) and negative electrode area 3 (1.9 cm × 3.0 cm in size), so that the conductive layer cannot be completely conducted, and the conductive glass after etching is sequentially used with detergent , distilled water and ethanol for ultrasonic cleaning.

[0036] Then spray a titanium tetrachloride solution with a mass concentration of 0.1% on the surface of the negative electrode region 3 of the conductive glass at a temperature of 400 oC to form a dense barrier layer 4 with a thickness of 28 nanometers.

[0037]Take 8g of zirconia powder with a particle size of 80 nanometers...

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Abstract

The invention discloses a perovskite solar cell and a manufacturing method of the perovskite solar cell. The perovskite solar cell is provided with a conducting glass conducting layer, a barrier layer, a mesoporous layer, a counter electrode layer and a perovskite light-absorbing layer. The conducting glass conducting layer is divided into a positive electrode region and a negative electrode region by a piece of insulating tape, the positive electrode region of the conducting glass conducting layer is coated with the barrier layer, the mesoporous layer is located on the barrier layer, the mesoporous layer, the insulating tape and the positive electrode region of the conducting glass conducting layer are covered with the counter electrode layer, and the outer surface of the counter electrode layer is coated with the perovskite light-absorbing layer. The low-cost screen printing technology is fully utilized, the production process is simple, the energy consumption of the low-cost screen printing technology is much lower than that of the evaporation coating technology, and the manufacturing method of the perovskite solar cell is beneficial for large-scale production and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a perovskite solar cell and a preparation method thereof. Background technique [0002] So far, the photoelectric conversion efficiency of perovskite solar cells that has been reported has reached 17.9%. As the third generation of solar cells, perovskite solar cells have attracted more and more attention due to their high photoelectric conversion efficiency, low cost and easy preparation. However, conventional perovskite solar cells use thermal evaporation to deposit noble metal counter electrodes, which is quite high in terms of material cost and energy consumption in the preparation process. In addition, conventional perovskite solar cells need to use The hole transport material is used as an electron blocking layer, and the hole transport material is very expensive, the current price is more than 10 times that of gold, and there is a problem of poor stability. These have...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K30/81H10K30/00Y02E10/549
Inventor 荣耀光李金花曹兆楼
Owner NANJING UNIV OF INFORMATION SCI & TECH
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