Texturing additive, texturing liquid and preparation method and application of texturing additive and texturing liquid
A technology of additives and texturing liquid, applied in chemical instruments and methods, post-processing details, polycrystalline material growth, etc., can solve the problems of small specific surface area, poor light trapping effect, short optical path, etc. The effect of stable surface structure, low cost of raw materials and simple preparation method
Pending Publication Date: 2022-07-22
湖州飞鹿新能源科技有限公司
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Problems solved by technology
[0010] The present invention aims to overcome the defect that the texture structure prepared by the texture additive in the prior art has a relatively small specific surface area and a short optical path, so that its light trapping effect is poor, and provides a texture additive, a texture liquid and Its preparation method and application to overcome the above-mentioned defects
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0048] A texturing additive comprises 1 wt % of sodium dodecyl sulfonate, 0.5 wt % of nonionic polyacrylamide with a molecular weight of 5-10 million, 1.5 wt % of alkylphenol polyoxyethylene ether, and the balance is water.
Embodiment 2
[0050] A texturing additive comprises 2 wt % of sodium dodecyl sulfonate, 0.5 wt % of nonionic polyacrylamide with a molecular weight of 5-10 million, 1.5 wt % of alkylphenol polyoxyethylene ether, and the balance is water.
Embodiment 3
[0052] A texturing additive comprises 3 wt % of sodium dodecyl sulfonate, 0.5 wt % of nonionic polyacrylamide with a molecular weight of 5-10 million, 1.5 wt % of alkylphenol polyoxyethylene ether, and the balance is water.
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The invention relates to the field of monocrystalline silicon battery manufacturing, in particular to a texturing additive as well as a preparation method and application thereof, and the texturing additive comprises the following components in percentage by weight: 1-5% of alkyl sulfonate, 0.15-1% of polyacrylamide, 0.5-5% of alkylphenol polyoxyethylene ether and the balance of water. The texturing additive can induce different crystal faces on the surface of the silicon wafer in the texturing process, so that an octahedral textured structure is formed on the surface of the silicon wafer, the prepared octahedral textured structure is stable and can be tightly and uniformly distributed on the surface of the silicon wafer, and the texturing additive has the advantages of being simple in preparation method and low in raw material cost.
Description
technical field [0001] The invention relates to the field of single crystal silicon cell manufacturing, in particular to a texturing additive, a texturing liquid and a preparation method and application thereof. Background technique [0002] The rapid economic growth of countries around the world and the increasing demand for energy by humans have led to the rapid shortage of non-renewable resources such as oil, natural gas, and coal mines. Environmental pollution and energy shortages have become factors that seriously restrict social development. [0003] Solar energy is a real green energy, because it is inexhaustible and has become an urgent need of human society. An important way to apply solar energy to life is photovoltaic power generation. Silicon wafers are the most important raw materials in the photovoltaic power generation industry. By increasing the absorption of light on the surface of the silicon wafer, not only the efficiency of the crystalline silicon solar ...
Claims
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IPC IPC(8): C30B33/10C09K13/02C30B29/06H01L31/0236H01L31/18
CPCC30B33/10C30B29/06H01L31/02363H01L31/1804C09K13/02Y02P70/50
Inventor 徐杨姚伟明张敏敏强飞虢小康斯小阳夏庆华
Owner 湖州飞鹿新能源科技有限公司
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