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
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[0028] Example 1
[0029] See figure 1 with figure 2 First, use an infrared laser (wavelength 1064 nanometers) to etch an insulating band 2 parallel to the edge of one side 0.8 cm away 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 positive area 1 (size 0.8 cm×2.0 cm) and negative area 3 (size 1.2 cm×2.0 cm), so that the conductive layer cannot be completely conducted, and the conductive glass after etching is washed sequentially Cleaning agent, distilled water and absolute ethanol for ultrasonic cleaning.
[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 oC to form a dense barrier layer 4 with a thickness of 22 nm.
[0031] Take 8g of zirconium dioxide powder with a particle size of 60 nanometers and 4g...
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[0034] Example 2
[0035] See image 3 and figure 2 First, use an infrared laser to use a wavelength of 1064 nm laser to etch an insulating tape 2 parallel to the edge of one side 1.1 cm away from one edge of the conductive layer of the FTO conductive glass with a size of 3.0 cm × 3.0 cm. The width of the insulating tape 2 is 0.05 cm. Divide the conductive glass into positive electrode area 1 (size 1.1 cm×3.0 cm) and negative electrode area 3 (size 1.9 cm×3.0 cm), so that the conductive layer cannot be completely connected. After etching the conductive glass, use detergent in turn , Distilled water and absolute ethanol for ultrasonic cleaning.
[0036] Then, a titanium tetrachloride solution with a mass concentration of 0.1% was sprayed on the surface of the negative electrode region 3 of the conductive glass at a temperature of 400°C to form a dense barrier layer 4 with a thickness of 28 nm.
[0037] Take 8g of zirconium dioxide powder with a particle size of 80 nanometers and 4g...
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