Preparation method of planar ordered metal nanowire laminated transparent conductive film
A transparent conductive film, metal nanowire technology, applied in metal/alloy conductors, cable/conductor manufacturing, circuits, etc., can solve the problems of volatile chemical reagents, difficult process control, high technical requirements, and achieve low surface roughness, Simple to manufacture, reduced surface roughness effect
Active Publication Date: 2017-01-25
SOUTH CHINA NORMAL UNIVERSITY
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[0004] Among the self-assembled metal nanowire methods that have been proposed so far, although one-dimensional ordered metal nanowire films have been produced to varying degrees, these technical methods also expose high technical requirements, difficult process control, and the need to use Disadvantages such as environmentally harmful and volatile chemical reagents
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[0023] The planar ordered metal nanowire stacked transparent conductive film and the preparation method thereof of the present invention will be further described in detail below in conjunction with specific examples. However, the scope of protection required by the present invention is not limited to the scope involved in the examples. If there are no specific details below, those skilled in the art can refer to the prior art to realize.
[0024] The invention assists in heating the water-alcoholic dispersion of metal nanowires by a water bath to generate solvent convection, and this solvent convection induces reorientation and self-assembly of the metal nanowires on the dispersion liquid-air interface, and the self-assembled metal nanowire film is dipped The pulling method is transferred to the required transparent substrate, and the planar ordered metal nanowire laminated transparent conductive film is formed through multiple orthogonal pulling methods. The specific embodim...
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Abstract
The invention provides a plane ordered metal nanowire superposed transparent conducting thin film and a preparation method thereof. The preparation method comprises the steps of conducting auxiliary heating on water-alcohol dispersion liquid of a metal nanowire through water bath to produce solvent convection, enabling the water-alcohol dispersion liquid to induce the metal nanowire to perform self assembly in a dispersion liquid-air interface and form a single-layer metal nanowire order film, adopting a dipping lifting-pulling method to transfer the order film to a required substrate, then performing multi-time orthogonal lifting and pulling to form a superposed metal nanowire grid, and accordingly preparing the plane ordered metal nanowire superposed transparent conducting thin film. By means of the preparation method, the random arramgene tand accumulation phenomena of metal nanowire transparent conducting thin films prepared by means of a spin-coating method, a spraying method and other preparation methods are overcome, and surface roughness of the conducting thin film and square block resistance are reduced. The preparation method facilitates application of the metal nanowire based transparent conducting thin film in organic solar cells, organic light emitting diodes and other thin film devices.
Description
technical field [0001] The invention relates to the field of transparent conductive film nanotechnology, in particular to a plane-ordered metal nanowire laminated transparent conductive film and a preparation method thereof. Background technique [0002] In recent years, with the development of science and technology, transparent conductive electrodes have been applied in many aspects and have entered people's daily life. Transparent conductive electrodes are mainly used in aspects such as liquid crystal displays, touch screens, plasma displays, organic light-emitting diodes, and solar cells. Currently used to make transparent conductive electrodes, the more widely used materials are doped metal oxides, and the most important one is indium tin oxide (ITO). ITO is widely used for its high light transmittance and low square resistance in the visible range. However, with the increase of people's demand and the emergence of flexible electronic devices, such as flexible solar c...
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IPC IPC(8): H01B13/00H01B1/02
Inventor 章勇段胜凯尹以安周永田
Owner SOUTH CHINA NORMAL UNIVERSITY