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Hydrogen passivation processing method and device for solar cell

A technology for solar cells and processing methods, applied in the fields of circuits, electrical components, sustainable manufacturing/processing, etc., can solve the problems of poor effect, affecting the effect of hydrogen passivation, unable to fully restore the effect of hydrogen passivation, etc. The effect of reducing the chance of light decay

Active Publication Date: 2018-01-05
ASIA NEO TECH IND
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Problems solved by technology

However, this post-cooling method is similar to the tempering treatment of metal materials. When the solar cells are heated by light and thermal radiation, although sufficient light can be obtained, the hydrogen passivation effect is affected by the high temperature. The cooling process cannot fully recover the effect of hydrogen passivation, so that the effect of reducing the light decay phenomenon after solar cells are treated by hydrogen passivation is still not good, so it needs to be improved

Method used

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  • Hydrogen passivation processing method and device for solar cell
  • Hydrogen passivation processing method and device for solar cell
  • Hydrogen passivation processing method and device for solar cell

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Embodiment Construction

[0036] first as figure 1 Shown is an explanatory diagram of a preferred embodiment of the hydrogen passivation treatment method for solar cells provided by the present invention, illustrating that a light source sufficient to generate light intensity and radiant heat is provided to irradiate (i.e. illuminate) and heat a solar cell in the air 10. The light intensity of the light source must be preset at a certain value during irradiation, so as to provide stable illuminance and radiant heat to passivate the hydrogen atoms in the solar cell 10, so that the hydrogen atoms can receive light uniformly and fill the silicon crystal Grid.

[0037] Such as figure 2 The configuration structure shown shows that the present invention can adopt LED lamp group 21 composed of a plurality of LED lamps as figure 1 The light source shown is used to illuminate and heat the solar cells 10 in the air. According to the light-emitting technology of the existing LED lamp group, the LED lamp group...

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Abstract

The invention discloses a hydrogen passivation processing method for a solar cell, which comprises the steps of setting the illumination intensity of a light source, and irradiating the solar cell ina suspended manner by using the light source; heating the solar cell by radiation heat generated by the light source; and cooling the solar cell by using a cooling medium, and enabling the solar cellto be maintained at a constant temperature, wherein irradiation, heating and cooling are performed on the solar cell simultaneously, so that the appropriateness rate of the solar cell in the hydrogenpassivation processing process is improved. Accordingly, the invention further provides a hydrogen passivation processing device for implementing the method.

Description

technical field [0001] The invention relates to the manufacturing process of solar cells, in particular to the passivation treatment of hydrogen sources in solar cells, and more specifically, the invention relates to a hydrogen passivation treatment method and device for solar cells. Background technique [0002] Solar cells are composed of semiconductor chips containing silicon lattices. In the production process of semiconductor chips, there are inevitably silicon lattices with poor crystal quality or poor purity, which causes solar cells to generate light during use. Fading phenomenon and then affect the battery efficiency and service life of the main reason. [0003] In order to prevent the light decay of solar cells, currently in the production process of solar cells, producers have used light sources to irradiate and heat solar cells to passivate the hydrogen source contained in solar cells. The passivation treatment of the so-called hydrogen source refers to using th...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 叶步章
Owner ASIA NEO TECH IND
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