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Copper nanowire transparent conductive thin film and preparation method

A transparent conductive film, copper nanowire technology, applied in conductive materials, conductive materials, nanotechnology and other directions, can solve the problem of difficult to achieve large-scale production of high-temperature containers, and achieve controllable aspect ratio, uniform morphology, and preparation cost. low effect

Inactive Publication Date: 2017-08-29
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The prior art discloses a method for synthesizing copper nanowires with different aspect ratios, but this method is difficult to achieve large-scale production using high-temperature vessels

Method used

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  • Copper nanowire transparent conductive thin film and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The operation steps of preparing copper nanowire transparent conductive film are as follows:

[0034] (1) Add 40 mmol (6.8 g) of copper chloride dihydrate and 40 mmol (7.92 g) of glucose into a beaker filled with 800 mL of deionized water, and obtain a solution A with a volume of 800 mL under magnetic stirring conditions;

[0035] Add 240 mmol (65 g) of oleylamine, 2.4 mmol (0.68 g) of oleic acid and 140 mL of ethanol solvent into a beaker with a capacity of 400 mL and vibrate ultrasonically for 10 minutes to obtain a solution B with a volume of 220.8 mL;

[0036] The molar ratio of divalent copper ion salt: glucose: oleylamine: oleic acid is 1:1:6:0.06;

[0037] (2) Pour solution A and solution B into a plastic bucket with a capacity of 5 L and add secondary water to dilute the solution to 4000 mL. After magnetic stirring at 50 °C for 12 hours, the color of the mixed solution changed from blue to blue-gray, and solution C was obtained.

[0038] (3) The solution C was...

Embodiment 2

[0043] (1) Add 20 mmol (3.4 g) of copper chloride dihydrate and 20 mmol (3.96 g) of glucose into a beaker filled with 800 mL of deionized water, and obtain a solution A with a volume of 800 mL under the condition of magnetic stirring;

[0044] Add 120 mmol (32.5 g) oleylamine, 1.2 mmol (0.34 g) oleic acid and 70 mL ethanol solvent into a beaker with a capacity of 400 mL and vibrate ultrasonically for 10 minutes to obtain solution B with a volume of 110.4 mL;

[0045] The molar ratio of divalent copper ion salt: glucose: oleylamine: oleic acid is 1:1:6:0.06;

[0046] (2) Pour solution A and solution B into a plastic bucket with a capacity of 5 L and add secondary water to dilute the solution to 4000 mL. After magnetic stirring at 50 °C for 12 hours, the color of the mixed solution changed from blue to blue-gray, and solution C was obtained.

[0047] (3) The solution C was put into a commercial electric pressure cooker with a capacity of 5 L, and the pressure was 0.12 MPa, and ...

Embodiment 3

[0052] (1) Add 40 mmol (6.8 g) of copper chloride dihydrate and 40 mmol (7.92 g) of glucose into a beaker filled with 800 mL of deionized water, and obtain a solution A with a volume of 800 mL under magnetic stirring conditions;

[0053] Add 240 mmol (65 g) of oleylamine, 2.4 mmol (0.68 g) of oleic acid and 140 mL of ethanol solvent into a beaker with a capacity of 400 mL and vibrate ultrasonically for 10 minutes to obtain a solution B with a volume of 220.8 mL;

[0054] The molar ratio of divalent copper ion salt: glucose: oleylamine: oleic acid is 1:1:6:0.06;

[0055] (2) Pour solution A and solution B into a plastic bucket with a capacity of 5 L and add secondary water to dilute the solution to 4000 mL. After magnetic stirring at 50 °C for 12 hours, the color of the mixed solution changed from blue to blue-gray, and solution C was obtained.

[0056] (3) The solution C was put into a commercial electric pressure cooker with a capacity of 5 L, and the pressure was 0.14 MPa, ...

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Abstract

The invention relates to a copper nanowire transparent conductive thin film and a preparation method. Copper nanowires in the copper nanowire transparent conductive thin film are distributed uniformly; no particle and no agglomeration phenomenon exist in nanowire terminals; when the transmittance of the copper nanowire transparent conductive thin film is 86%, the square resistance is as low as 30 ohms / port; and operating steps for preparing the copper nanowire transparent conductive thin film are as follows: (1) adding a divalent copper ion salt and a glucose to water and mixing to obtain a solution A, and adding oleylamine and an oleic acid to anhydrous ethanol and mixing to obtain a solution B; (2) diluting the solution A and the solution B with water and stirring to mix to obtain a solution C; (3) enabling the solution C to react under the condition of a certain pressure and temperature to obtain a copper nanowire crude solution;(4) mixing the copper nanowire rough solution with a polyvinylpyrrolidone ethanol solution, centrifuging and cleaning for multiple times, and forming a film on a substrate with a wet processing technology; and (5) in an atmosphere of an inert gas, annealing at a high temperature to obtain the copper nanowire transparent conductive thin film. According to the copper nanowire transparent conductive thin film and the preparation method, the preparation cost is low.

Description

technical field [0001] The invention relates to the technical field of metal nanomaterials and transparent conductive networks. In particular, it relates to a copper nanowire transparent conductive film and a preparation method thereof. Background technique [0002] Transparent conductive films have great application value in thin-film solar cells, flat panel displays, light-emitting diodes, and low-emissivity glass. Traditional transparent conductive films including indium-doped tin oxide (ITO), fluorine-doped tin oxide (FTO) and aluminum-doped zinc oxide (AZO) have mature manufacturing technologies, but the preparation cost is too high and the quality is brittle and fragile, which greatly limits Its development as a conductive material in flexible devices such as foldable electronic paper, organic displays, and wearable devices. Aiming at the high production cost of traditional transparent conductive oxides, the copper nanowire transparent conductive network can greatly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B1/02B82Y30/00H01B13/00
CPCH01B5/14B82Y30/00H01B1/026H01B13/00
Inventor 李伸杰陈艳艳查天庸
Owner HEFEI UNIV OF TECH
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