Preparation methods of silver nanowires for conductive ink and silver nanowire electrode
A silver nanowire and conductive ink technology, applied in the field of printed electronics, can solve the problems of cumbersome preparation process of silver nanomaterials, inability to use large-scale production and application, harsh experimental conditions, etc., and achieve high yield, uniform size, and simple preparation method Effect
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[0018] The embodiment of the present invention provides a method for preparing silver nanowires for conductive ink, including the following steps:
[0019] S01. The silver ion salt and the protective agent are dissolved in a reducing solvent to form a mixed solution, and an etchant is added to the mixed solution to prepare a precursor solution;
[0020] S02. The precursor solution is heated and stirred twice in sequence to prepare silver nanowires for conductive ink, wherein the method of the two heating and stirring treatments is:
[0021] The first heating and stirring treatment: heating and stirring at 135-145℃ for 110-130min;
[0022] The second heating and stirring treatment: heating and stirring at 155-165°C for 25-35 min.
[0023] Specifically, in the above step S01, the mixed solution simultaneously contains a silver ion salt, a protective agent, and a reducing solvent.
[0024] Wherein, the silver ion salt is an organic or inorganic silver ion salt that can exist as a cation in ...
Example Embodiment
[0043] Example 1
[0044] A method for preparing a flexible electrode includes the following steps:
[0045] Q11. The preparation of silver nanowires for conductive inks includes the following steps:
[0046] S11. Put 100mgAgNO 3 Dissolve 100mg PVP in 30ml EG, add 2ul HCl (1M) to it after dissolving evenly to prepare a precursor solution;
[0047] S12. Pour the precursor solution into a flask and perform heating and stirring treatment twice in turn,
[0048] Among them, the first heating and stirring treatment is placed in a heat-collecting magnetic stirrer at 140°C for 2 hours, and the reaction equation of the first heating and stirring treatment is as follows:
[0049] 2HOCH 2 CH 2 OH→2CH 3 CHO+2H 2 O(S121)
[0050] 2Ag + +2CH 3 CHO→CH 3 CHO-OHCCH 3 +2Ag+2H + (S122)
[0051] 4HNO 3 +3Ag→3AgNO 3 +NO+2H 2 O(S123),
[0052] Among them, the reaction formula S123 reflects the reaction process of the polycrystalline crystal nucleus being etched.
[0053] For the second heating and stirring treat...
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