Luxacal™ is a doped-tungsten oxide nanomaterial with near infrared (NIR) absorption functionality. The materials size and dopant levels have been optimized for high absorption in the near infrared region and high transmittance in thevisible region making them ideal candidates for use in thermal control glazing applications.

Functions: IR Absorber, UV Absorber

Chemical Family: Oxides, Tin Compounds

End Uses: Digital Ink

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
CAS No.
2072120-12-6
Technologies
Chemical Formula

Cs0.29Sn0.04WO3

Features & Benefits

Benefits of Luxacal
  • William Blythe has used its extensive expertise in hydrothermal synthesis to produce a range of nano-sized doped tungsten oxides that are ideal for selected applications in coatings and renewable energy. Absorption in the UV, visible and, most importantly, NIR can be controlled by varying the dopants and dopant ratios to deliver bespoke products to meet your individual needs. Materials in the Luxacal™ range have been optimized for high absorption in the near infrared region and high transmittance in the visible region making them ideal candidates for use in thermal control glazing applications. William Blythe has filed patents for products which have been designed to maximize NIR absorption while minimizing absorption in the visible region.
Key Features
  • Optimized for high absorption of infrared and low absorption in the visible region
  • Product has no hazard classification
  • Can be used to produce stable dispersions of the nano-powder
  • Fine control over dopants allows for bespoke product tailoring where required
  • REACH registered material

Applications & Uses

Ink & Toner Type
Applications

William Blythe’s doped tungsten oxides are ideal for use in applications such as:

Coating Additives
  • An active material used in “inkless” digital printing.
  • An active material for the absorption of radiation in the near infrared wavelength range, for example in the production of energy efficient windows.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Molecular Weight275.13--
Product Forms
  • William Blythe’s doped tungsten oxides are available as powders.

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Transmission Profiles of Luxacal

Luxacal™ 202 - Transmission Profiles of LuxacalWilliam Blythe has carried out analysis on two materials within the Luxacal™ range and compared the transmittance to a normalized intensity of sunlight. Both materials show a high % transmittance in the visible region and low infrared transmittance, demonstrating their potential as selective infrared absorbers. It should be noted that both Luxacal™ materials were analyzed in a dispersion of toluene which has total absorption bands between 1640 nm and 1790 nm. Data was obtained at a 0.01% loading of active material.

Analysis of Doped tungsten oxide coatings

Luxacal™ 202 - Analysis of Doped Tungsten Oxide Coatings

Doped tungsten oxide coatings in dauble glazing are able to absorb near infra-red
radiation. This leads to a reduction in infra-red radiation passing through the glazing
& therefore helps to maintain lower internal temperatures.