Tin Oxide Functional Nano powders and Dispersions

Tungsten & Molybdenum products

Rare Elements’ Chemical Salts

Tin Oxide

Initially developed as a pigment for ceramics and brighteners, it is now widely applied in accordance with market requirements, including as a wear-resistant agent in the automobile industry and high-purity products in the electrical and electronic industries.

ATO Powder and its dispersions

This product provides conductivity to prevent static electricity and has excellent infrared absorption performance.
This allows the production of transparent conductive layers on glass, ceramics, and other substrates, and enables infrared-absorbing coatings and films. Additionally, thanks to its excellent absorption of laser light and conversion into heat, it can be used as a laser marking additive and LDS (Laser Direct Structuring) additive.
High IR absorption not only has applications in reheating in PET processing processes but is also used in new technologies such as 3D printing or powder sintering.

ITO (Indium Tin Oxide) Powder and its Dispersion Solutions

ITO (Indium Tin Oxide) has long been used as a transparent conductive oxide in electrical and electronic fields.
It is typically used as a transparent electrode in touch screens.
The most chemically stable form of ITO is yellow in color, while the reduced form is a blue powder. Greenish ITO is a mixed form produced by a high-temperature process. The main advantages are:

CTO (C-Tungsten Oxide) Powder and its Dispersion solutions

WO3 is yellow, and depending on oxygen concentration, the color changes from yellow to blue, purple, and brown.
Manipulating the crystal structure and doping it with different metals significantly increases the IR absorption efficiency. Tungsten oxide treated in this way absorbs IR most effectively. As a result, lightly doped tungsten oxide provides excellent heat absorption in coatings, films, and polymer plates for glazing applications.

Near Infrared Absorbers

NIR absorbing materials offer transparency in the visible light range (350 – 750 nm), but show a high absorption for the Near Infrared wavelength (750 nm – 2500 nm).

The products differ in their performance and properties. The doped Tungsten Oxides (CTO) offer the highest NIR absorption efficiency. ATO based products do not only show good NIR absorption but good electrical conductivity in thin transparent films. BITO is the product with the lowest colour impact on the final product.

All grades show a strong photothermal effect, which describes the conversion of NIR light into heat. Irradiation of the pigments leads to a rapid increase of their temperature. The heat is then dissipated into the surrounding matrix. This effect proves to be very useful for various applications in inks and coatings.

The products are offered in powder or nanodispersion form. The stable water or solvent based nanodispersions have a particle size well below 100 nm suitable for transparent coatings and for inkjet ink formulations. The nanodispersions are well compatible with a range of ink and coating chemistries.