Monocrystalline silicon flocking additive
A monocrystalline silicon texturing and crystalline silicon texturing technology, which is applied in the directions of crystal growth, post-processing details, and post-processing, can solve the problems of high chemical consumption, uneven texturing size, and poor texturing repeatability, etc., to achieve Reduced chemical consumption, uniform texture pyramid, and good texture repeatability
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Embodiment 1
[0013] Example 1. (1) Preparation of additives: Add 5% sodium dodecylbenzenesulfonate, 10% polyphosphate, 5% lactic acid, and 8% sulfuric acid to 72% deionized water, mix well and prepare into a texture additive. (2) Prepare an alkaline texturing liquid, and dissolve potassium hydroxide in deionized water to obtain an alkaline texturing liquid, wherein the mass percentage of potassium hydroxide is 1.8%. The prepared additive is added into the texturing liquid to obtain the texturing agent. Dip the monocrystalline silicon wafer of the solar cell into the texturing agent for texturing.
Embodiment 2
[0014] Example 2. (1) Preparation of additives: Add 10% sodium dodecylbenzenesulfonate, 15% polyphosphate, 5% lactic acid, and 8% sulfuric acid to 62% deionized water, mix well and prepare into a texture additive. (2) Prepare an alkaline texturing liquid, and dissolve potassium hydroxide in deionized water to obtain an alkaline texturing liquid, wherein the mass percentage of potassium hydroxide is 1.2%. The prepared additive is added into the texturing liquid to obtain the texturing agent. Dip the monocrystalline silicon wafer of the solar cell into the texturing agent for texturing.
Embodiment 3
[0015] Example 3. (1) Preparation of additives: add 20% sodium dodecylbenzenesulfonate, 18% polyphosphate, and 5% sulfuric acid into 57% deionized water by mass, and mix well to prepare a texturing additive. (2) Prepare an alkaline texturing liquid, and dissolve potassium hydroxide in deionized water to obtain an alkaline texturing liquid, wherein the mass percentage of potassium hydroxide is 1.5%. The prepared additive is added into the texturing liquid to obtain the texturing agent. Dip the monocrystalline silicon wafer of the solar cell into the texturing agent for texturing.
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