NEW PRODUCTS/DEVELOPED PRODUCTS
Silver Nanowires
Silver Nanowires(AgNW)
We provide silver nanowire (AgNW) dispersions in solvents.
In addition to their high conductivity and high optical transparency, films formed with silver nanowires offer high flexibility compared to ITO, which is widely used today as a transparent conductive film.
These properties make silver nanowires ideal electrode materials for both flexible touch panels and new solar cells.
Silver nanowire coatings also show excellent far-infrared reflectance, making them ideal materials for low-emissivity insulating films.
- Silver Nanowire Dispersion
- Inkjet printable silver nanowire dispersion
- Silver Nanowire Ink
- Overcoating agent for silver nanowire conductive films
- Electrical and Optical Properties of Silver Nanowire Coating Films
- Electric field shielding properties of silver nanowire conductive films
- Far-infrared reflectance properties of silver nanowire-coated films
- Examples of expected applications of silver nanowires
Silver Nanowire Dispersion
- This composition contains minimal components other than solvent and silver nanowires.
- It is ideal for applications requiring mixture with resins or additives, or where additional components are not desired.
- Upon request, we can customize the concentration, dimensions, and dispersion solvent of silver nanowires.
| Type | Silver concentration | Dispersion solvent | Average wire diameter | Average wire length |
|---|---|---|---|---|
| AgNW aqueous dispersion, standard grade | 0.5wt% | Water | 20~25nm Approx. | 10μm Approx. |
| AgNW organic solvent dispersion, standard grade | 0.5wt% | Alcohol, glycol, etc. | 20~25nm Approx. | 10μm Approx. |
| Custom options | 2.5 wt% or less | Water, Alcohol, glycol, etc. | Contact us for options | Contact us for options |
Examples of Silver Nanowire dimensions
Inkjet printable silver nanowire dispersion
We also handle silver nanowire dispersions developed for inkjet applications.
Possible dispersion solvents include water, alcohol, glycol, and more.
Silver Nanowire Ink
- This grade contains additives such as resins added to the silver nanowire dispersion.
- Doing so makes it possible to impart functions such as coatability and adhesion to the substrate.
- Various parameters can be modified upon request. We can also create customized products containing desired additives.
Coating a substrate such as a film with silver nanowire ink makes it possible to create a transparent conductive film that is highly transparent and conductive. As transparent and conductive silver nanowire films can be produced using a general wet process, in addition to their favorable productivity, they also are highly flexible compared to ITO, a conventional transparent conductive film.
| Type | Silver concentration | Base Solvent | Average wire diameter | Average wire length | Viscosity |
|---|---|---|---|---|---|
| Water-based AgNW standard ink | 0.1–0.5 wt% (depends on target resistance) | Water | 20~25nm Approx. | 10μm Approx. | 20 mPa･s or less |
| Organic solvent-based AgNW standard ink | 0.1–0.5 wt% (depends on target resistance) | Alcohol-based | 20~25nm Approx. | 10μm Approx. | Depends on solvent type |
Overcoating agent for silver nanowire conductive films
- Used to impart silver nanowire conductive films with environmental durability.
- We offer light-curable and heat-curable overcoating agents.
Silver nanowires generally deteriorate due to light and high temperature/high humidity conditions. But applying an overcoat to the silver nanowire layer achieves extremely high environmental durability.
A conductive film made up of silver nanowires has a mesh-like structure with gaps between the silver nanowires, so when an overcoat agent is applied, it seeps into these gaps.
Applying a thin coating of an overcoat agent therefore makes it is possible to achieve electrical conductivity even from the overcoat surface.
Electrical and Optical Properties of Silver Nanowire Coating Films
- Films coated with silver nanowires offer low resistance and high transparency.
- Adjusting the amount of silver nanowire coating allows the sheet resistance and optical properties to be adjusted.
Electric field shielding properties of silver nanowire conductive films
- Conductive films using silver nanowires have excellent electric field shielding properties, meaning they can be applied as transparent electromagnetic wave shielding materials.
- The shielding characteristics can be adjusted via the resistance value of the silver nanowire conductive film.
Electric field shielding properties of silver nanowire-coated films
Far-infrared reflectance properties of silver nanowire-coated films
- Films formed with silver nanowires offer excellent far-infrared reflectance properties.
- Radio wave permeability can also be imparted while maintaining the excellent far-infrared reflectance characteristics.
- We expect these films to be used as transparent low-emissivity (Low-E) insulation films.
Far-infrared reflectance properties of silver nanowire-coated films (graphs of the same color indicate evaluations of the same sample)
Examples of expected applications of silver nanowires
Touch panels (transparent electrodes), flexible displays, solar cells, OLED electrodes, electromagnetic shielding materials, transparent heaters, low-emissivity (Low-E) insulation films
