Substrate having metal nanowire layer formed thereon and method for manufacturing same
A metal nanowire and manufacturing method technology, applied in metal layered products, nanotechnology, nanotechnology and other directions, can solve the problems of metal nanowire peeling, inability to have high mechanical strength, inability to perform stable plating treatment, etc., and achieve high durability. The effect of high stability and high mechanical strength
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Embodiment 1
[0054] Silver nanowires were obtained by chemical synthesis by reducing silver nitrate in an ethylene glycol (EG) solvent in which polyvinylpyrrolidone (PVP) and chloride ions were dissolved.
[0055] First, PVP (manufactured by Wako Pure Chemical Industries, Ltd., weight average molecular weight: 360,000 (catalogue value)) was mixed with EG solvent to prepare a PVP solution. Silver nitrate and iron (III) chloride solution (600 μmol / L, solvent EG) were sequentially added to this PVP solution, and a mixed solution before reaction was prepared at room temperature. The mixed solution contained 0.006% by mass of PVP, 0.006% by mass of silver nitrate, and 0.1% by mass of iron (III) chloride. Silver nanowires were synthesized by maintaining the mixed liquid at 110° C. for 12 hours without stirring. After the synthesis, centrifugation was performed to remove the supernatant, and ethanol was added to perform solvent replacement, and the silver nanowires were dispersed in ethanol so t...
Embodiment 2
[0061] Except that the holding temperature of the mixed solution was changed to 150° C., silver nanowires were produced in the same manner as in Example 1, except that the substrate was changed to a PET substrate (Lumirror (registered trademark) S, width 30 mm, length 50 mm, thickness 100 μm, Toray Co., Ltd.), similarly formed a silver nanowire layer on the entire surface of the substrate, and then formed a pattern of silver nanowires with a width of 10 mm and a length of 50 mm by laser etching.
[0062] The substrate was treated in dilute sulfuric acid prepared to 0.1N for 10 seconds, and treated in a mixture of a predetermined amount of Pd catalyst solution (KG-529 manufactured by JX Metal Trading Co., Ltd.) and dilute hydrochloric acid prepared to 0.1N for 1 minute. , followed by heat treatment at 100°C for 5 minutes in a hot air circulation oven, and 10 seconds at 80°C in an electroless Ni-P plating solution (KG-531 and KG-531H manufactured by JX Metal Trading Co., Ltd.). ...
Embodiment 3
[0070] Dix (registered trademark)-SR (manufactured by KISCO Co., Ltd.) was deposited on a glass substrate with a thickness of 30mm×30mm×1mm by chemical vapor deposition under vacuum to obtain a coating film of parylene (registered trademark) with a thickness of 3 μm. . Use the parylene (registered trademark) that forms on this glass substrate as base material, do not carry out electroless nickel plating, only carry out electroless gold plating (about 5nm), process similarly with embodiment 1 except that, obtain silver nanometer A substrate in which electroless plating was performed on a silver nanowire layer in which a part of the wire was embedded in a coating film of Parylene (registered trademark).
[0071] Next, laser processing was performed on the electroless-plated nanowire layer on the substrate to form wiring (0.5 mm in width and 4 mm in length). In order to accelerate the migration of silver, drop 1 drop of distilled water to the center of the gold-plated silver nan...
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