Novel method for manufacturing solar cells

A technology of a solar cell and a manufacturing method, applied in the field of solar cells, can solve the problems of poor light absorption and high electrode contact resistance, and achieve the effects of good light absorption, low contact resistance and good contact

Inactive Publication Date: 2015-03-25
GUANGXI ZHITONG ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a novel solar cell and its manufacturing method, which are used to solve the problems of poor light absorption and high electrode contact resistance of the novel solar cell in the prior art

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  • Novel method for manufacturing solar cells
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Embodiment Construction

[0044] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0045] see Figure 1 to Figure 7 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arb...

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Abstract

The invention discloses a novel method for manufacturing solar cells. The novel method comprises the following steps that S1, a semiconductor substrate of a first type is provided, and acid texturing is conducted, wherein a honeycombing textured structure is formed on the surface f the semiconductor substrate of the first type; S2, a mask layer is formed on the honeycombing textured structure, and the mask covers a top electrode printing area; S3, then alkali texturing is conducted on the semiconductor substrate of the first type; S4, the mask is removed; S5, light dope of a second type is conducted on the whole face of the semiconductor substrate of the first type; S6, heavy dope of second type is conducted on the top electrode printing area of the semiconductor substrate of the first type; S7, edge etching, cleaning and antireflection film deposition are conducted in sequence, wherein at least one face of a negative electrode layer is provided with a metal mano-particle layer which is formed by a singular-layer graphene film or a two-layer graphene film or multi-layer graphene film. The novel method for manufacturing the solar cells improves efficiency of manufacturing the solar cells.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a manufacturing method of a novel solar cell. Background technique [0002] At present, the development of high-efficiency cell technology is the key to improving the efficiency of solar cells. The relatively mature high-efficiency battery technology is dominated by selective emitter (selective emitter, selective emitter) batteries. The selective emitter cell is a selective diffusion cell, which has two characteristics: 1) a highly doped deep diffusion area is formed in the grid line contact area (below the grid line and its vicinity); 2) a low doped shallow diffusion area is formed in the illuminated area Area. By selectively doping the emitter region, the effects of different diffusion square resistances are realized in the gate line contact region and other regions, and the series resistance is reduced. Among them, the metallization area (gate line contact a...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCH01L31/02366H01L31/18H01L31/186H01L31/1868Y02E10/50Y02P70/50
Inventor 郭文锦蔡桂钧
Owner GUANGXI ZHITONG ENERGY SAVING ENVIRONMENTAL PROTECTION TECH
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