Solar cell and manufacture method thereof

A technology of solar cells and manufacturing methods, applied in the direction of final product manufacturing, sustainable manufacturing/processing, circuits, etc., can solve problems such as leakage, short circuit, conversion efficiency and product reliability cannot be effectively improved
CN104576771AInactive Publication Date: 2015-04-29MOSEL VITELIC INC
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
MOSEL VITELIC INC
Publication Date
2015-04-29
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a solar cell which comprises a semiconductor substrate, an emitter layer, at least one first electrode, at least one second electrode and a dielectric layer, wherein the semiconductor substrate is provided with a first surface, a second surface opposite to the first surface as well as at least one through channel penetrating through the first surface and the second surface; the emitter layer is formed on the first surface, the second surface and the through channel of the semiconductor substrate; a pn junction is formed between the semiconductor substrate and the emitter layer; the first electrode is formed on the through channel, the first surface and the second surface and is contacted with the emitter layer; the second electrode is formed on the second surface and electrically connected with the semiconductor substrate; the dielectric layer is formed in the through channel and located between the emitter layer and the first electrode to isolate the first electrode from the pn junction, so that the conversion efficiency of the solar cell is increased.
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Description

technical field

[0001] The invention relates to a photovoltaic module and a manufacturing method thereof, in particular to a solar cell and a manufacturing method thereof. Background technique

[0002] The rise in global energy prices and the promotion of sustainable use of resources have made green energy an important part of technological development. Among them, solar power generation has lower environmental restrictions and is easier to popularize. Solar power converts light energy into electrical energy through solar cells. Therefore, improving the conversion efficiency of solar cells to provide more and cheaper electrical energy is the main direction of the industry's current development.

[0003] refer to figure 1 , which is a schematic diagram of the structure of a conventional solar cell. The manufacturing process of the conventional solar cell 1 is briefly described as follows: first, a semiconductor substrate 10, such as a p-type semiconductor substrate, is prov...

Claims

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