Composite conductive film based on silver nanowires and preparation method thereof
A technology of silver nanowires and composite conduction, applied to the conductive layer on the insulating carrier, used in the direction of nanotechnology for materials and surface science, nanotechnology, etc., can solve the problem of affecting the stability of silver nanowire transparent conductive film, which cannot meet the requirements of flexibility Conductive film preparation requirements, organic protective agent is easy to age and other problems, to achieve the effect of small square resistance, low square resistance and stable conductivity
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Embodiment 1
[0035] A preparation method of an ammonium tungstate-protected silver nanowire conductive film, as follows:
[0036] (1) Substrate pretreatment: The PET substrate was continuously cleaned in an ultrasonic bath containing detergent, acetone, deionized water and ethanol for 20 minutes each step, and then dried with nitrogen;
[0037] (2) Silver nanowire coating
[0038] The cleaned PET substrate was coated with silver nanowire ink produced by C3Nano Company by roller coating method, dried at 110° C. for 10 min, and the final thickness of the film was 200 nm.
[0039] (3) Preparation of ammonium tungstate coating
[0040]a. Disperse ammonium tungstate in ionized water and add it to the mixed organic solvent. Stir at 650 rpm for 40 minutes at 50°C. Add concentrated hydrochloric acid during heating and stirring to form a uniform and stable precursor solution. Ammonium tungstate and The mass ratio of ionized water and mixed organic solvent is 5:80:1:0.1, and the mixed organic solv...
Embodiment 2
[0044] A preparation method of an ammonium tungstate-protected silver nanowire conductive film, as follows:
[0045] (1) Substrate pretreatment: The PET substrate was continuously cleaned in an ultrasonic bath containing detergent, acetone, deionized water and ethanol for 10 minutes each step, and then dried with nitrogen;
[0046] (2) Silver nanowire coating
[0047] The silver nanowire ink produced by C3Nano Company was coated on the PET substrate by scraping method, and dried at 110° C. for 10 minutes, and the final thickness of the film was 400 nm.
[0048] (3) Preparation of ammonium tungstate coating
[0049] a. Disperse ammonium tungstate in ionized water and add it to the mixed organic solvent. Stir for 60 minutes at a speed of 350rpm at 50°C. During heating and stirring, add concentrated hydrochloric acid to form a uniform and stable precursor solution, in which ammonium tungstate and The mass ratio of ionized water and mixed organic solvent is 5: 100: 1: 0.2, and t...
Embodiment 3
[0053] A preparation method of an ammonium tungstate-protected silver nanowire conductive film, as follows:
[0054] (1) Substrate pretreatment: The glass substrate was cleaned continuously for 10 min each step in an ultrasonic bath containing detergent, acetone, deionized water and ethanol, and then dried with nitrogen;
[0055] (2) Silver nanowire coating
[0056] The self-made silver nanowire ink was coated on the glass substrate by spraying method, the silver nanowire concentration was 5%, the diameter was 30nm, the length was 20μm, dried at 110°C for 10min, and the final thickness of the film was 100nm.
[0057] (3) Preparation of ammonium tungstate coating
[0058] a. Disperse ammonium tungstate in ionized water and add it to the mixed organic solvent. Stir at 50°C at a speed of 400rpm for 50 minutes. During heating and stirring, add concentrated hydrochloric acid to form a uniform and stable precursor solution. Ammonium tungstate and The mass ratio of ionized water an...
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