With the growing interest in flexible, lightweight, and intelligent electronic devices, there is a great need for efficient techniques for producing conductive inks. As a key material, conductive ink directly affects the performance and quality of electronic products. In the past few years, high-quality, large-scale colloidal nanoparticles have attracted the attention of the scientific community and have demonstrated tremendous applications in the growing printed electronics market. Alfa Chemistry is able to synthesize stable colloidal nanoparticles and use them to produce conductive inks with good dispersion.
Due to nanoscale quantum confinement and size-dependent interfacial and thermodynamic properties, colloidal nanomaterials possess unique electrical, optical, magnetic, chemical, and/or structural properties, driving their application in conductive inks. Stable copper nanoparticles synthesized by polyol method using the cationic surfactants cetyltrimethylammonium bromide (CTAB) and polyvinylpyrrolidone (PVP, K30) as dual capping agents in ambient atmosphere colloid, not only the impurity rate is low, but also the produced nano-copper conductive inks have good dispersibility and no obvious precipitation.
Fig.1 Photo image of nano copper ink (1 wt%) after 30 days since electrodialysis has been done.
The colloidal dispersions of nanostructured conducting polymers have both liquid properties and nanoscale morphology, providing a route for the processing of conducting polymer nanostructures and the preparation of composite materials. The stable colloidal dispersions of polypyrrole (PPy) nanotubes/nanorods can be stored for a long time and exhibit good electrochemical redox activity, which makes them a promising conductive ink.
Fig.2 Nanotubular PPy colloid stabilized with 0.2 wt.% PVP coated on flexible poly(ethylene terephthalate) foil.
Alfa Chemistry is constantly making new attempts to synthesize colloidal nanomaterials, providing specific technical solutions for the development of colloidal conductive inks. We strive to develop colloid-based composites and study the effect of parameters on properties to fully expand their application benefits. In recent years, Alfa Chemistry's research focus has been on green and environmentally friendly water-based conductive inks. The related series of products developed by Alfa Chemistry have remarkable electrical conductivity, which is obviously better than the performance of products in the same industry. The colloidal conductive inks produced can maintain good dispersion for a long time without obvious precipitation.
If you are interested in our Conductive Inks, please don't hesitate to place an order now!