Chemical nickel-plating brightener for heterojunction solar cell and preparation method of chemical nickel-plating brightener
A solar cell and electroless nickel plating technology, which is applied in liquid chemical plating, circuits, photovoltaic power generation, etc., can solve the problems of poor brightness, corrosion resistance, poor adhesion strength and low plating speed of the nickel plating layer, and achieves The effect of improving the covering ability, speeding up the nickel plating process, and improving the corrosion resistance
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Embodiment 1
[0030] The brightener for electroless nickel plating per liter of heterojunction solar cells includes the following components: 68g of pyridinium propanesulfonate, 6g of thiophene additive, 7g of propynyl alcohol ethoxy ether, 2.5g of lauryl alcohol additive, fatty alcohol polyoxyethylene Sodium ether sulfate 4g, the rest is deionized water.
[0031] Wherein, thiophene additive is made by following steps:
[0032] Add 3-thiopheneacetic acid and 6-chloro-1-hexanol into tetrahydrofuran, stir until dissolved, add dicyclohexylcarbodiimide, heat to 80°C under nitrogen protection, and then reflux for 12 hours to obtain reaction solution 1. After the reaction liquid was suction filtered, the filtrate was obtained, and the filtrate was evaporated under reduced pressure to remove the solvent to obtain the intermediate product. The ratio of 3-thiopheneacetic acid, 6-chloro-1-hexanol, tetrahydrofuran, and dicyclohexylcarbodiimide was 1mmol:1mmol : 6mL: 1.2mmol; under the protection of n...
Embodiment 2
[0041] The brightener for electroless nickel plating per liter of heterojunction solar cells includes the following components: 70g of propane sulfonate pyridinium salt, 5g of thiophene additive, 6g of propynyl alcohol ethoxy ether, 3g of lauryl alcohol additive, fatty alcohol polyoxyethylene ether Sodium sulfate 3.5g, the rest is deionized water.
[0042] Wherein, the preparation steps of thiophene additive and lauryl alcohol additive are the same as in Example 1.
[0043] The preparation method of the electroless nickel plating brightener for heterojunction solar cells comprises the following steps:
[0044] (1) Take each component by formula, add lauryl alcohol additive, fatty alcohol polyoxyethylene ether sodium sulfate to deionized water, and the weight of deionized water is the weight of lauryl alcohol additive, fatty alcohol polyoxyethylene ether sodium sulfate 5 times of the mixture, and stirred at 50°C until the mixture was evenly mixed to obtain solution 1;
[0045...
Embodiment 3
[0049] The electroless nickel plating brightener for heterojunction solar cells per liter includes the following components: 66g of pyridinium propane sulfonate, 7g of thiophene additive, 9g of propynyl alcohol ethoxy ether, 2g of lauryl alcohol additive, fatty alcohol polyoxyethylene ether Sodium sulfate 3g, the rest is deionized water.
[0050] Wherein, the preparation steps of thiophene additive and lauryl alcohol additive are the same as in Example 1.
[0051] The preparation method of the electroless nickel plating brightener for heterojunction solar cells comprises the following steps:
[0052] (1) Take each component by formula, add lauryl alcohol additive, fatty alcohol polyoxyethylene ether sodium sulfate to deionized water, and the weight of deionized water is the weight of lauryl alcohol additive, fatty alcohol polyoxyethylene ether sodium sulfate and 5 times of the mixture, and stirred at 40°C until the mixture was evenly mixed to obtain solution 1;
[0053] (2) ...
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