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Production method of solar cell

A technology of solar cells and production methods, applied in circuits, electrical components, photovoltaic power generation, etc., can solve problems such as poor filling uniformity of perovskite solutions, achieve uniform and stable filling effects, reduce randomness, and accelerate penetration speed.

Active Publication Date: 2019-12-17
HUBEI WONDER SOLAR LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses a pipette gun to coat the perovskite solution from the upper end of the carbon film, resulting in poor filling uniformity of the perovskite solution and a photoelectric conversion efficiency of only 5.6%.

Method used

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  • Production method of solar cell
  • Production method of solar cell
  • Production method of solar cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the perovskite precursor solution coating device has a liquid storage container 1, and a heating device 11 is arranged outside it, so as to heat and keep warm the perovskite precursor solution. A needle 12 for discharging the perovskite precursor solution is provided below the liquid storage container 1 . The solar cell body 2 is located below the needle head 12 , and a heating plate 3 is provided below several solar cell bodies 2 to provide a stable temperature environment for the solar cell body 2 .

[0035] A fluorine-doped tin oxide (FTO) conductive glass with a length of 100 mm and a width of 100 mm was laser etched into nine sub-cells connected in series. The conductive glass was ultrasonically cleaned with detergent, distilled water and absolute ethanol for 10 minutes in sequence. Place the cleaned conductive glass on the hot stage, and block the opposite electrode area with a shield. Heating to 450°C, spraying the ethanol solution o...

Embodiment 2

[0039] Such as figure 2 As shown, the perovskite precursor solution coating device has a liquid storage container 1, and a heating device 11 is arranged inside it, so as to heat and keep warm the perovskite precursor solution. Below the liquid storage container 1 is provided a slit cutter head 13 for discharging the perovskite precursor solution. The solar cell body 2 is located below the slit cutter head 13 , and a heating plate 3 is arranged below several solar cell bodies 2 to provide a stable temperature environment for the solar cell body 2 .

[0040] A fluorine-doped tin oxide (FTO) conductive glass with a length of 100 mm and a width of 100 mm was laser etched into nine sub-cells connected in series. The conductive glass was ultrasonically cleaned with detergent, distilled water and absolute ethanol for 10 minutes in sequence. Place the cleaned conductive glass on the hot stage, and block the opposite electrode area with a shield. Heating to 450°C, spraying the etha...

Embodiment 3

[0044]A fluorine-doped tin oxide (FTO) conductive glass with a length of 100 mm and a width of 100 mm was laser etched into nine sub-cells connected in series. The conductive glass was ultrasonically cleaned with detergent, distilled water and absolute ethanol for 10 minutes in sequence. Place the cleaned conductive glass on the hot stage, and block the opposite electrode area with a shield. Heating to 450°C, spraying the ethanol solution of diisopropyl di(acetylacetonate) titanate on the surface of the conductive glass, and decomposing it to form a dense layer of titanium dioxide. Remove the barrier of the counter electrode area, deposit nano-titanium dioxide with a thickness of 1.8 μm on the dense layer by screen printing technology, and sinter at 500 ° C for 1 hour to form a mesoporous titanium dioxide film. Cool the conductive glass, and then use screen printing technology to form a zirconia slurry with a thickness of 2 μm on the mesoporous titanium dioxide film, and dry ...

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Abstract

The invention discloses a production method of a solar cell. The production method comprises the following steps: coating a perovskite precursor solution with a temperature of 15-150 DEG C onto a solar cell body with a temperature of 15-150 DEG C, wherein the perovskite precursor solution is accommodated in a liquid storage container; the liquid storage container is provided with heating equipment; a heating plate is arranged under the solar cell body; and the temperature difference between the perovskite precursor solution and the solar cell body is + / -15 DEG C. The method can improve the filling uniformity of the perovskite precursor solution, and improve the photoelectric conversion efficiency of the solar cell.

Description

technical field [0001] The invention relates to a production method of a solar cell, in particular to a production method of a perovskite solar cell. Background technique [0002] Perovskite solar cells have high photoelectric conversion efficiency and low material cost, and are considered to be the next generation of new solar cells that can replace crystalline silicon solar cells, so they have broad commercialization prospects. During the research process of perovskite solar cells, a variety of structures based on different materials have emerged. The three-layer mesoporous structure using carbon as the back electrode has low cost and can be scaled up for production, so it has broad market prospects. In the preparation process of perovskite solar cells, it is necessary to fill the perovskite solution into the mesoporous layer to achieve effective filling. However, in the process of large-area device fabrication, the perovskite solution needs to pass through the micron-sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48
CPCH10K71/12H10K71/40Y02E10/549
Inventor 韩宏伟徐觅
Owner HUBEI WONDER SOLAR LLC
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