Manufacturing method for conductive film based on printing process

Abstract

The invention discloses a manufacturing method for a conductive film based on a printing process. The method includes the following steps: providing a conductive substrate, and performing cleaning treatment on the conductive substrate; printing conductive ink on the conductive substrate by utilizing the printing process; performing pre-annealing treatment on the conductive ink; and performing curing drying treatment on the conductive ink subjected to the pre-annealing treatment to form the conductive film. The manufacturing method for the conductive film based on the printing process performsthe cleaning treatment on the surface of the conductive substrate to remove dust and particles and to increase surface wettability thereof, the conductive ink is uniformly spread on the conductive substrate through the printing process, the conductive ink is subjected to the pre-annealing treatment to make the conductive ink lose flowability, finally the conductive ink is subjected to drying treatment to obtain the conductive film with good uniformity, and the manufacturing method effectively avoids a coffee-ring effect.

Description

technical field [0001] The invention relates to the technical field of optoelectronic devices, in particular to a method for manufacturing a conductive film based on a printing process. Background technique [0002] Photoelectric devices, including photodetectors, solar cells, and light-emitting diodes, play an important role in people's production and life and are widely used in all aspects of society. In optoelectronic devices, the transparent conductive layer, that is, the carrier transport layer, is the basic structure. At present, the preparation technologies of most conductive films are mainly methods such as magnetron sputtering, thermal evaporation and spin coating, but the above-mentioned processing methods have the disadvantage of low material utilization, resulting in a large waste of resources, and are not suitable for large-area devices. preparation. [0003] Although the current printing technology can overcome the above shortcomings, the ink in the printing ...

AI Technical Summary

Problems solved by technology

At present, the preparation technologies of most conductive films are mainly methods such as magnetron sputtering, thermal evaporation and spin coating, but the above-mentioned processing methods have the disadvantage of low material utilization, resulting in a large waste of resources, and are not suitable for large-area devices. preparation of

[0003] Although the current printing technology can overcome the above shortcomings, the ink in the printing process is prone to coffee ring phenomenon during the solvent volatilization and drying process, resulting in uneven thickness and large roughness of the functional film, which is not conducive to the preparation of high-performance optoelectronic devices.

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