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Ultraviolet light curing post-processing method for printing electrode

A technology of printing electrodes and ultraviolet light, applied in the post-processing, printing and other directions of printing, can solve the problems of increasing the complexity of the process, increasing the roughness of the Ag film, and lack of research on the roughness, achieving short curing time and low resistance. rate and roughness, the effect of surface uniformity

Active Publication Date: 2017-04-26
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the existing technical solutions lack the research on the properties of Ag ink cured by UV curing time and UV curing power, especially the research on roughness
In addition, adding heat treatment will increase the complexity of the process and increase the roughness of the Ag film

Method used

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  • Ultraviolet light curing post-processing method for printing electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0039] (1) Substrate cleaning: Put the substrate into an ultrasonic cleaner, and use recovered isopropanol, recovered tetrahydrofuran, alkaline cleaning solution, deionized water, deionized water, and isopropanol to ultrasonically shake for 10 minutes respectively.

[0040] (2) Substrate drying: Put the cleaned substrate into an oven and dry it at 80°C.

[0041] (3) Experimental parameter setting: set the distance from the nozzle to the stage as 1000um, design the printed pattern as a square of 8mm*8mm, set the distance between the center of the ink droplet to 35um, the speed of the ink droplet to 2m / s, and the temperature of the stage to 30°C , The nozzle temperature is 30°C.

[0042] (4) Thin film printing: use a printer to print preset graphics on the substrate.

[0043] (5) UV curing: Put the printed substrate into the UV curing instrument, adjust the height of the lifting table in the UV curing instrument to h=0cm, that is, 37cm away from the UV lamp, and set the curing ti...

Embodiment 2

[0048] (1) Substrate cleaning: Put the substrate into an ultrasonic cleaner, and use recovered isopropanol, recovered tetrahydrofuran, alkaline cleaning solution, deionized water, deionized water, and isopropanol to ultrasonically shake for 10 minutes respectively.

[0049] (2) Substrate drying: Put the cleaned substrate into an oven and dry it at 80°C.

[0050] (3) Experimental parameter setting: set the distance from the nozzle to the stage as 1000um, print the pattern as a square of 8mm*8mm, the distance between the center of the ink droplet is 35um, the speed of the ink droplet is 2m / s, the temperature of the stage is 30°C, and the temperature of the nozzle is 60°C ℃.

[0051] (4) Thin film printing: use a printer to print preset graphics on the substrate.

[0052] (5) UV curing: Put the printed substrate into the UV curing instrument, adjust the height h of the lifting table in the UV curing instrument to 0cm, 8cm, 10cm, 12cm, 14cm, that is, the distance from the UV lamp...

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Abstract

The invention discloses an ultraviolet light curing post-processing method for a printing electrode. The method comprises the following steps that 1, a substrate is placed into an ultrasonic cleaner to be cleaned; 2, the cleaned substrate is placed into a drying box to be dried; 3, printing parameters are set, and the dried substrate is placed on a printer for printing of preset patterns; 4, the printed substrate is placed into a UV curing instrument, the distance between a UV lamp and a lifting table in the UV curing instrument is adjusted, curing time is set, and curing is carried out; and 5, the roughness and electrical resistivity of a Ag film obtained through printing are tested. By adjusting the UV curing time and curing power, the roughness and electrical resistivity of the cured ink-jet printing Ag film are controlled under the low curing power, and the Ag film with the low electrical resistivity and roughness is obtained. According to the ultraviolet light curing post-processing method, curing time is short, the technological process is extremely simple, precuring is not needed, and only one step of UV curing is needed in the curing process.

Description

technical field [0001] The invention relates to the field of preparation of printed electronic devices, in particular to a post-treatment method for ultraviolet light curing of printed electrodes. Background technique [0002] The existing technology mainly adjusts the resistivity and other properties of the Ag film after UV curing by changing the composition of the Ag ink (such as the type of Ag filler, the content of Ag, etc.), and after a short period of UV curing, the relative Heat treatment for a longer time; or adjust the temperature and time of heat treatment after UV curing to adjust the resistivity and other properties of the Ag film after UV curing. However, there is a lack of research on the surface roughness of Ag thin films after curing in the prior art. [0003] Screen Printable UV Curing Electronic Inks. Karen L. Hueston, LaurieN. Kroupa and James S. Tonge used screen printing to print Ag ink, and changed the composition of Ag ink (type of Ag material, etc.) ...

Claims

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Application Information

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IPC IPC(8): B41M7/00
Inventor 宁洪龙周艺聪姚日晖陶瑞强蔡炜陈建秋朱镇南徐苗王磊彭俊彪
Owner SOUTH CHINA UNIV OF TECH
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