Nano-silver particle mixed conductive ink doped with organic silver and preparation method thereof

Abstract

Nano-silver particle mixed conductive ink doped with organic silver and a preparation method thereof are disclosed. The advantage of low-temperature reduction (sintering) of organic silver precursor ink is utilized, the organic silver precursor ink is doped into nano-silver particle conductive ink to prepare mixed ink. On one hand, compared with the organic silver precursor ink, the mixed ink hasreduced requirements on storage conditions; on the other hand, compared with the traditional nano-silver particle type ink, the mixed ink has lowered sintering temperature, and can achieve room-temperature or low-temperature sintering, so that the device preparation process is simplified, and the selection range of a substrate material is widened. Nano-silver particles are generated in situ in thedrying process of patterns prepared by the mixed ink, so that the content of silver in the ink can be greatly reduced, and the cost of the ink is reduced.

Description

technical field [0001] The invention relates to the technical field of silver ink preparation, in particular to a nano-silver particle mixed conductive ink doped with organic silver and a preparation method thereof. Background technique [0002] Printed electronics is an emerging field resulting from the combination of traditional printing technology and electronic technology. The rise and development of this field makes electronic devices tend to be flexible, lightweight, and foldable. Flexible devices are prepared by printing (printing) technology and connected with various functional components, and their development depends on the development of various functional inks and conductive inks. Among the many types of conductive inks, they can be divided into inorganic conductive inks, organic conductive inks and composite conductive inks according to the conductive components of the ink. Among them, inorganic conductive inks include metal-based and carbon-based inks. Silver...

AI Technical Summary

Problems solved by technology

The silver content in this type of organic silver precursor ink is limited by the solubility of silver complexes, so the silver content cannot be increased arbitrarily, which limits the conductivity of the prepared pattern to a certain extent.

In addition, the storage conditions of this type of ink are harsh, and generally need to be refrigerated at low temperature in the dark to prevent the deterioration of the ink caused by light and heat and affect its use.

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