One-dimensional conductive filler spraying device for TCF preparation

Abstract

The invention belongs to the field of conductive material preparation equipment, and particularly relates to a one-dimensional conductive filler spraying device for TCF preparation. The device comprises a bearing main body used for assembling a flexible film substrate and a spraying mechanism arranged on one side of the bearing main body and used for spraying a one-dimensional nano material solution to the flexible film substrate, and the bearing main body is in transmission connection with a power mechanism and does continuous equidirectional uniform-speed movement action in the spraying state of the spraying mechanism; and the spraying mechanism is an atomizing nozzle arranged right above the bearing main body, a liquid inlet of the atomizing nozzle is connected with a container for containing the one-dimensional nano material solution through a pipeline provided with a flow regulating switch, and an air inlet of the atomizing nozzle is connected with a high-pressure air source through a pipeline provided with a pressure regulating switch. The device is simple in structure, efficient in operation and free of pollution, an orientation structure of the one-dimensional conductive nano material on the composite film can be effectively improved, and then ordered arrangement distribution and corresponding performance of a conductive network of the one-dimensional conductive nano composite film are improved.

Description

technical field [0001] The invention belongs to the field of preparation equipment of conductive materials, in particular to a one-dimensional conductive filler spraying device for TCF preparation. Background technique [0002] Transparent conductive film (TCF) with excellent transparency and electrical conductivity is a key indicator for optoelectronic devices to achieve high performance. In fact, TCF as a flexible electrode has indeed aroused interest in fields such as touch screen panels, flexible organic solar cells, and organic light-emitting diodes. great concern. The one-dimensional conductive fillers (metal nanowires, carbon nanotubes, etc.) have ultra-high conductivity, light transmittance, flexibility and large aspect ratio, so the various solution-based spin coating, spray coating, Both vacuum filtration and rod coating are widely used in the manufacture of TCF. [0003] However, these traditional preparation processes mainly distribute one-dimensional conductiv...

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Problems solved by technology

But these methods also have some defects, for example, the preparation method requires high precision and the preparation process is complicated; additional process methods such as template pre-preparation, template transfer or pre-growth of conductive fillers are required; the slow evaporation rate of the solvent reduces the preparation process. Efficiency; incapable of large-scale preparation, etc.

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