Convex lens corrugation type solar cell silicon substrate and manufacturing process thereof

A solar cell and manufacturing process technology, applied in the field of solar cells, can solve the problems of lack of light concentrating performance and large light reflection loss, and achieve the effects of prolonging the effective power generation time, low production cost and reducing reflection

Active Publication Date: 2014-04-30
江苏福克斯电气集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional solar cells use planar silicon substrates. When the light is not directly irradiated, the light reflection loss of the cell is large, and it does not have light-gathering performance.

Method used

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  • Convex lens corrugation type solar cell silicon substrate and manufacturing process thereof
  • Convex lens corrugation type solar cell silicon substrate and manufacturing process thereof
  • Convex lens corrugation type solar cell silicon substrate and manufacturing process thereof

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Embodiment

[0025] Such as figure 1 , 2 . As shown in 3, a convex lens type corrugated solar cell monocrystalline silicon substrate includes a monocrystalline silicon substrate body 1, and the surface of the monocrystalline silicon substrate body 1 is a convex lens type corrugated non-planar structure arranged in a strip order .

[0026] The height difference between the top end 2 and the bottom end 3 of the convex lens of the single crystal silicon substrate body 1 ranges from 1 mm to 2 mm.

[0027] The difference in width between the diameters of the bottom surfaces of the convex lenses of the monocrystalline silicon substrate body 1 is in the range of 8-10 mm.

[0028] Such as Figure 4 As shown, a manufacturing process of a convex lens type corrugated solar cell monocrystalline silicon substrate comprises the following steps:

[0029] Step 1. Deposition of an amorphous silicon masking layer: placing a screen 4 with circular windows arranged in strips on the surface of a flat monoc...

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Abstract

The invention discloses a convex lens corrugation type solar cell silicon substrate and a manufacturing process thereof. The convex lens corrugation type solar cell silicon substrate comprises monocrystalline silicon substrate bodies, and the surfaces of the monocrystalline silicon substrate bodies are of a convex lens corrugation type non-planar structure and are arranged in a strip sequence. The manufacturing process comprises the steps that deposit a noncrystalline silicon masking layer by using a low pressure chemical gas deposition method and to form a surface appearance through chemical corrosion. The surfaces of silicon substrates are of the convex lens corrugation type non-planar structure. The structure effectively enlarges the photic area of the convex lens corrugation type solar cell silicon substrate, when light comes in from different angles, perpendicular incidence surfaces exist, and the fact that optical energy is utilized to the maximum extent is achieved. The generating efficiency of the convex lens corrugation type solar cell silicon substrate is high.

Description

technical field [0001] The invention belongs to the field of solar cells, and in particular relates to a silicon substrate of a solar cell whose surface is arranged sequentially in strips with a multi-convex lens type non-planar structure and a manufacturing process thereof. Background technique [0002] Solar power generation is clean and does not produce pollution, so solar power generation is known as the most ideal energy source. Obtaining electricity from solar energy requires photoelectric conversion through solar cells. [0003] At present, solar cells mainly include monocrystalline silicon cells, polycrystalline silicon cells and thin-film cells, among which monocrystalline silicon cells have the highest conversion efficiency in mass production, which can reach 18-19%. However, the conversion efficiency of the solar cell cannot meet people's demand for the conversion efficiency of the solar cell. Therefore, people have carried out corresponding structural design on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0352H01L31/0236H01L31/18
CPCY02E10/50H01L31/02363Y02P70/50
Inventor 花国然王强曾凤仲蓓鑫程实邓洁钱爱平
Owner 江苏福克斯电气集团有限公司
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