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Electronic cleaning agent special for solar energy photovoltaic component

A technology of solar photovoltaic and cleaning agent, applied in the direction of inorganic non-surface-active cleaning composition, organic non-surface-active cleaning composition, etc., can solve the problems of large negative, affecting suede efficiency, secondary pollution of silicon wafers, etc.

Inactive Publication Date: 2010-06-16
JIANGYIN RUNMA ELECTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In this process, the effect of early pretreatment is very critical. Although the pretreatment solution used in the current process can be cleaned with deionized water after treatment, it will cause secondary pollution to the silicon wafer. A small amount of residue is formed, so it is very negative in the subsequent chemical etching process of texturing, which affects the formation of the inverted pyramid on the surface of the silicon wafer, that is, affects the efficiency of the texturing

Method used

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  • Electronic cleaning agent special for solar energy photovoltaic component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 preparation 5000ml solar photovoltaic special electronic cleaning agent

[0028] 1. Add 90ml of sodium hydroxide (50% content) and 2500ml of deionized water and stir well for use.

[0029] 2. Add 12.25ml of fatty alcohol polyoxyethylene ether into the diluted alkaline solution to be used, and stir well.

[0030] 3. Add 2397.75ml of deionized water to the alkaline solution that has been added with alcohol ether and stir evenly.

[0031] 4. Use a filter to filter and pack in a clean room.

Embodiment 2

[0042] Embodiment 2 preparation 50000ml solar photovoltaic special electronic cleaning agent

[0043] 1. Add 900ml of sodium hydroxide (50% content) and 25,000ml of deionized water and stir well for use.

[0044] 2. Add 122.5ml of isooctyl alcohol polyoxyethylene ether into the diluted alkaline solution to be used, and stir well.

[0045] 3. Add 23977.5ml of deionized water to the alkaline solution that has been added with alcohol ether and stir evenly.

[0046] 4. Use a filter to filter and pack in a clean room.

Embodiment 3

[0048] Basically the same as Example 1, the difference is that the components of solar photovoltaic electronic cleaning agent are: 0.01% disodium fatty alcohol polyoxyethylene ether sulfosuccinate monoester, 0.5% potassium hydroxide, and the balance deionized water.

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Abstract

The invention provides an electronic cleaning agent special for a solar energy photovoltaic component. The electronic cleaning agent comprises the following components by weight percent: 0.01-0.5% of surfactant, 0.2-2% of alkaline substance and the balance deionized water. The electronic cleaning agent of the invention is used to control the residual substance of the reaction between alkaline solution and silicon wafer; and the surfactant is used to avoid the poor decontamination ability caused by low reactivity of the weakly alkaline solution, increase the cleaning performance of the cleaning agent to the silicon wafer and ensure that no residue exists after the silicon wafer is cleaned, thus increasing the texture-preparing effect.

Description

technical field [0001] The invention relates to an electronic cleaning agent, in particular to an electronic cleaning agent required in the manufacturing process of solar cells. Background technique [0002] With the development of society, some non-renewable resources are becoming more and more scarce, which has seriously affected the future development of human beings, so the development of some new resources is urgently needed. [0003] Solar photovoltaic is one of the fastest-growing, most dynamic, and one of the most eye-catching projects in recent years. Its working principle is to use photoelectric materials to absorb light energy and undergo photoelectric conversion reactions to achieve the purpose of energy utilization. It is mainly based on semiconductors. [0004] In the entire technical process, improving the conversion efficiency of solar cells is the key, and the textured surface is to ensure the utilization rate of solar energy on silicon wafers and increase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/06C11D7/26
Inventor 戈士荣
Owner JIANGYIN RUNMA ELECTRONICS MATERIAL
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